CRAN Package Check Results for Package petro.One

Last updated on 2018-07-21 14:47:38 CEST.

Flavor Version Tinstall Tcheck Ttotal Status Flags
r-devel-linux-x86_64-debian-clang 0.1.3 9.70 113.50 123.20 ERROR
r-devel-linux-x86_64-debian-gcc 0.1.3 7.57 86.46 94.03 ERROR
r-devel-linux-x86_64-fedora-clang 0.1.3 140.00 ERROR
r-devel-linux-x86_64-fedora-gcc 0.1.3 135.55 ERROR
r-devel-windows-ix86+x86_64 0.1.3 19.00 117.00 136.00 ERROR
r-patched-linux-x86_64 0.1.3 ERROR
r-release-linux-x86_64 0.1.3 8.19 102.41 110.60 ERROR
r-release-windows-ix86+x86_64 0.1.3 20.00 144.00 164.00 ERROR
r-release-osx-x86_64 0.1.3 NOTE
r-oldrel-windows-ix86+x86_64 0.1.3 13.00 145.00 158.00 ERROR
r-oldrel-osx-x86_64 0.1.3 NOTE

Check Details

Version: 0.1.3
Check: examples
Result: ERROR
    Running examples in ‘petro.One-Ex.R’ failed
    The error most likely occurred in:
    
    > base::assign(".ptime", proc.time(), pos = "CheckExEnv")
    > ### Name: get_papers_count
    > ### Title: Number of paper for a given query
    > ### Aliases: get_papers_count
    >
    > ### ** Examples
    >
    > # Example 1
    > url_1 <- make_search_url(query = "static gradient survey", how = "all")
    > get_papers_count(url_1)
    Error in open.connection(x, "rb") :
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
    Calls: get_papers_count -> <Anonymous> -> read_html.default
    Execution halted
Flavors: r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-patched-linux-x86_64, r-release-linux-x86_64

Version: 0.1.3
Check: tests
Result: ERROR
     Running ‘testthat.R’ [9s/28s]
    Running the tests in ‘tests/testthat.R’ failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     ── 1. Error: (unknown) (@test_GTE-summary_by.R#7) ─────────────────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) ──
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ──────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ──────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) ───────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) ───────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 10. Error: return no results (@test_make_search_url.R#10) ──────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 11. Error: return some results (@test_make_search_url.R#19) ────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) ────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 16. Error: when read_multipage presentation only (@test_multipage.R#62) ────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) ──
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 23. Error: search returns 0 papers (@test_paper_by_type.R#35) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 24. Error: search returns 1 papers (@test_paper_by_type.R#47) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 25. Error: search returns 1 papers (@test_paper_by_type.R#60) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 26. Error: search returns 1 papers (@test_paper_by_type.R#73) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 27. Error: search returns 2 papers (@test_paper_by_type.R#86) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 28. Error: search returns 1 papers (@test_paper_by_type.R#100) ─────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ══ testthat results ═══════════════════════════════════════════════════════════
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     In addition: There were 27 warnings (use warnings() to see them)
     Execution halted
Flavor: r-devel-linux-x86_64-debian-clang

Version: 0.1.3
Check: re-building of vignette outputs
Result: WARN
    Error in re-building vignettes:
     ...
    Quitting from lines 31-37 (document_types_of_papers.Rmd)
    Error: processing vignette ‘document_types_of_papers.Rmd’ failed with diagnostics:
    server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
    Execution halted
Flavors: r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-patched-linux-x86_64, r-release-linux-x86_64

Version: 0.1.3
Check: tests
Result: ERROR
     Running ‘testthat.R’ [7s/27s]
    Running the tests in ‘tests/testthat.R’ failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     ── 1. Error: (unknown) (@test_GTE-summary_by.R#7) ─────────────────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) ──
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ──────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ──────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) ───────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) ───────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 10. Error: return no results (@test_make_search_url.R#10) ──────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 11. Error: return some results (@test_make_search_url.R#19) ────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) ────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 16. Error: when read_multipage presentation only (@test_multipage.R#62) ────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) ──
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 23. Error: search returns 0 papers (@test_paper_by_type.R#35) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 24. Error: search returns 1 papers (@test_paper_by_type.R#47) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 25. Error: search returns 1 papers (@test_paper_by_type.R#60) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 26. Error: search returns 1 papers (@test_paper_by_type.R#73) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 27. Error: search returns 2 papers (@test_paper_by_type.R#86) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 28. Error: search returns 1 papers (@test_paper_by_type.R#100) ─────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ══ testthat results ═══════════════════════════════════════════════════════════
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     In addition: There were 27 warnings (use warnings() to see them)
     Execution halted
Flavor: r-devel-linux-x86_64-debian-gcc

Version: 0.1.3
Check: dependencies in R code
Result: NOTE
    Namespaces in Imports field not imported from:
     ‘Rgraphviz’ ‘cluster’ ‘graph’
     All declared Imports should be used.
Flavors: r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-release-osx-x86_64, r-oldrel-osx-x86_64

Version: 0.1.3
Check: examples
Result: ERROR
    Running examples in ‘petro.One-Ex.R’ failed
    The error most likely occurred in:
    
    > ### Name: get_papers_count
    > ### Title: Number of paper for a given query
    > ### Aliases: get_papers_count
    >
    > ### ** Examples
    >
    > # Example 1
    > url_1 <- make_search_url(query = "static gradient survey", how = "all")
    > get_papers_count(url_1)
    Error in open.connection(x, "rb") :
     SSL certificate problem: unable to get local issuer certificate
    Calls: get_papers_count -> <Anonymous> -> read_html.default
    Execution halted
Flavors: r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-ix86+x86_64, r-release-windows-ix86+x86_64, r-oldrel-windows-ix86+x86_64

Version: 0.1.3
Check: tests
Result: ERROR
     Running ‘testthat.R’ [7s/17s]
    Running the tests in ‘tests/testthat.R’ failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     ── 1. Error: (unknown) (@test_GTE-summary_by.R#7) ─────────────────────────────
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) ──
     SSL certificate problem: unable to get local issuer certificate
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ──────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ──────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) ───────
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) ───────
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 10. Error: return no results (@test_make_search_url.R#10) ──────────────────
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 11. Error: return some results (@test_make_search_url.R#19) ────────────────
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) ────────
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 16. Error: when read_multipage presentation only (@test_multipage.R#62) ────
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) ──
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 23. Error: search returns 0 papers (@test_paper_by_type.R#35) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 24. Error: search returns 1 papers (@test_paper_by_type.R#47) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 25. Error: search returns 1 papers (@test_paper_by_type.R#60) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 26. Error: search returns 1 papers (@test_paper_by_type.R#73) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 27. Error: search returns 2 papers (@test_paper_by_type.R#86) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 28. Error: search returns 1 papers (@test_paper_by_type.R#100) ─────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ══ testthat results ═══════════════════════════════════════════════════════════
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     In addition: There were 17 warnings (use warnings() to see them)
     Execution halted
Flavor: r-devel-linux-x86_64-fedora-clang

Version: 0.1.3
Check: re-building of vignette outputs
Result: WARN
    Error in re-building vignettes:
     ...
    Quitting from lines 31-37 (document_types_of_papers.Rmd)
    Error: processing vignette 'document_types_of_papers.Rmd' failed with diagnostics:
    SSL certificate problem: unable to get local issuer certificate
    Execution halted
Flavors: r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-ix86+x86_64, r-release-windows-ix86+x86_64, r-oldrel-windows-ix86+x86_64

Version: 0.1.3
Check: tests
Result: ERROR
     Running ‘testthat.R’ [7s/15s]
    Running the tests in ‘tests/testthat.R’ failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     ── 1. Error: (unknown) (@test_GTE-summary_by.R#7) ─────────────────────────────
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) ──
     SSL certificate problem: unable to get local issuer certificate
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ──────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ──────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) ───────
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) ───────
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 10. Error: return no results (@test_make_search_url.R#10) ──────────────────
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 11. Error: return some results (@test_make_search_url.R#19) ────────────────
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) ────────
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 16. Error: when read_multipage presentation only (@test_multipage.R#62) ────
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) ──
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 23. Error: search returns 0 papers (@test_paper_by_type.R#35) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 24. Error: search returns 1 papers (@test_paper_by_type.R#47) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 25. Error: search returns 1 papers (@test_paper_by_type.R#60) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 26. Error: search returns 1 papers (@test_paper_by_type.R#73) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 27. Error: search returns 2 papers (@test_paper_by_type.R#86) ──────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 28. Error: search returns 1 papers (@test_paper_by_type.R#100) ─────────────
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ══ testthat results ═══════════════════════════════════════════════════════════
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     In addition: There were 17 warnings (use warnings() to see them)
     Execution halted
Flavor: r-devel-linux-x86_64-fedora-gcc

Version: 0.1.3
Check: tests
Result: ERROR
     Running 'testthat.R' [18s]
    Running the tests in 'tests/testthat.R' failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     -- 1. Error: (unknown) (@test_GTE-summary_by.R#7) -----------------------------
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) --
     SSL certificate problem: unable to get local issuer certificate
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ----------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ----------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) -------
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) -------
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 10. Error: return no results (@test_make_search_url.R#10) ------------------
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 11. Error: return some results (@test_make_search_url.R#19) ----------------
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) --------
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 16. Error: when read_multipage presentation only (@test_multipage.R#62) ----
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) --
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 23. Error: search returns 0 papers (@test_paper_by_type.R#35) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 24. Error: search returns 1 papers (@test_paper_by_type.R#47) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 25. Error: search returns 1 papers (@test_paper_by_type.R#60) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 26. Error: search returns 1 papers (@test_paper_by_type.R#73) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 27. Error: search returns 2 papers (@test_paper_by_type.R#86) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 28. Error: search returns 1 papers (@test_paper_by_type.R#100) -------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     == testthat results ===========================================================
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     In addition: There were 28 warnings (use warnings() to see them)
     Execution halted
Flavor: r-devel-windows-ix86+x86_64

Version: 0.1.3
Check: tests
Result: ERROR
     Running ‘testthat.R’ [8s/27s]
    Running the tests in ‘tests/testthat.R’ failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     ── 1. Error: (unknown) (@test_GTE-summary_by.R#7) ─────────────────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) ──
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ──────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ──────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) ───────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) ───────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 10. Error: return no results (@test_make_search_url.R#10) ──────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 11. Error: return some results (@test_make_search_url.R#19) ────────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     ── 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) ────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     ── 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 16. Error: when read_multipage presentation only (@test_multipage.R#62) ────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) ──
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     ── 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     ── 23. Error: search returns 0 papers (@test_paper_by_type.R#35) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 24. Error: search returns 1 papers (@test_paper_by_type.R#47) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 25. Error: search returns 1 papers (@test_paper_by_type.R#60) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 26. Error: search returns 1 papers (@test_paper_by_type.R#73) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 27. Error: search returns 2 papers (@test_paper_by_type.R#86) ──────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ── 28. Error: search returns 1 papers (@test_paper_by_type.R#100) ─────────────
     server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     ══ testthat results ═══════════════════════════════════════════════════════════
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     In addition: There were 16 warnings (use warnings() to see them)
     Execution halted
Flavors: r-patched-linux-x86_64, r-release-linux-x86_64

Version: 0.1.3
Check: tests
Result: ERROR
     Running 'testthat.R' [20s]
    Running the tests in 'tests/testthat.R' failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     -- 1. Error: (unknown) (@test_GTE-summary_by.R#7) -----------------------------
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) --
     SSL certificate problem: unable to get local issuer certificate
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ----------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ----------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) -------
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) -------
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 10. Error: return no results (@test_make_search_url.R#10) ------------------
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 11. Error: return some results (@test_make_search_url.R#19) ----------------
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) --------
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 16. Error: when read_multipage presentation only (@test_multipage.R#62) ----
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) --
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 23. Error: search returns 0 papers (@test_paper_by_type.R#35) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 24. Error: search returns 1 papers (@test_paper_by_type.R#47) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 25. Error: search returns 1 papers (@test_paper_by_type.R#60) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 26. Error: search returns 1 papers (@test_paper_by_type.R#73) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 27. Error: search returns 2 papers (@test_paper_by_type.R#86) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 28. Error: search returns 1 papers (@test_paper_by_type.R#100) -------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     == testthat results ===========================================================
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     Execution halted
Flavor: r-release-windows-ix86+x86_64

Version: 0.1.3
Check: tests
Result: ERROR
     Running 'testthat.R' [19s]
    Running the tests in 'tests/testthat.R' failed.
    Complete output:
     > library(testthat)
     > library(petro.One)
     >
     > test_check("petro.One")
     -- 1. Error: (unknown) (@test_GTE-summary_by.R#7) -----------------------------
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_GTE-summary_by.R:7
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 2. Error: all queries match expected values (@test_GTE_paper_count.R#132) --
     SSL certificate problem: unable to get local issuer certificate
     1: get_papers_count(my_url) at testthat/test_GTE_paper_count.R:132
     2: xml2::read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 303) at testthat/test_document_type.R:11
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 4. Error: document type = *conference-paper* matches (@test_document_type.R#2
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), 2687) at testthat/test_document_type.R:22
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 5. Error: make_search_url matches number of papers from_year to_year (@test_f
     SSL certificate problem: unable to get local issuer certificate
     1: expect_gte(get_papers_count(my_url), expected) at testthat/test_from_year_to_year.R:12
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8) ----------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:8
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21) ----------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_is_dctype_enabled.R:21
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 8. Error: both dataframes return rows - test #5 (@test_joining.R#11) -------
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, another, more, get_papers = TRUE, sleep = 2,
     verbose = FALSE) at testthat/test_joining.R:11
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 9. Error: both dataframes return rows - test #3 (@test_joining.R#25) -------
     SSL certificate problem: unable to get local issuer certificate
     1: join_keywords(major, minor, lesser, get_papers = TRUE, sleep = 2, verbose = FALSE) at testthat/test_joining.R:25
     2: get_papers_count(url.1)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 10. Error: return no results (@test_make_search_url.R#10) ------------------
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 0, tolerance = 1) at testthat/test_make_search_url.R:10
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 11. Error: return some results (@test_make_search_url.R#19) ----------------
     SSL certificate problem: unable to get local issuer certificate
     1: expect_equal(get_papers_count(my_url), 2, tolerance = 1) at testthat/test_make_search_url.R:19
     2: quasi_label(enquo(object), label)
     3: eval_bare(get_expr(quo), get_env(quo))
     4: get_papers_count(my_url)
     5: xml2::read_html(url)
     6: read_html.default(url)
     7: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     8: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     9: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     11: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     12: open(x, "rb")
     13: open.connection(x, "rb")
    
     -- 12. Error: when read_multidoc gets zero rows (@test_multipage.R#10) --------
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:10
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 13. Error: when read_multidoc with neural network gets almost 3000 rows (@tes
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:26
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 14. Error: when read_multidoc search mechanistic performance (@test_multipage
     SSL certificate problem: unable to get local issuer certificate
     1: read_multidoc(my_url) at testthat/test_multipage.R:33
     2: papers_by_type(my_url)
     3: get_papers_count(url)
     4: xml2::read_html(url)
     5: read_html.default(url)
     6: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     7: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     8: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     10: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     11: open(x, "rb")
     12: open.connection(x, "rb")
    
     -- 15. Error: when read_multipage journal-paper gets almost 3000 rows (@test_mul
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:54
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 16. Error: when read_multipage presentation only (@test_multipage.R#62) ----
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url) at testthat/test_multipage.R:62
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 17. Error: when read_multipage journal-paper only (@test_multipage.R#117) --
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "journal-paper") at testthat/test_multipage.R:117
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 18. Error: when read_multipage has no dc_type or doctype (@test_multipage.R#1
     SSL certificate problem: unable to get local issuer certificate
     1: read_multipage(my_url, doctype = "presentation") at testthat/test_multipage.R:125
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 19. Error: when returning no results, expect dataframe (@test_onepetro_page_t
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:9
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 20. Error: when returning some results, expect dataframe (@test_onepetro_page
     SSL certificate problem: unable to get local issuer certificate
     1: onepetro_page_to_dataframe(my_url) at testthat/test_onepetro_page_to_dataframe.R:20
     2: read_html(url)
     3: read_html.default(url)
     4: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     5: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     6: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     9: open(x, "rb")
     10: open.connection(x, "rb")
    
     -- 21. Error: mechanistic performance, all, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:10
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 22. Error: mechanistic performance, any, returns one row (@test_paper_by_type
     SSL certificate problem: unable to get local issuer certificate
     1: papers_by_type(my_url) at testthat/test_paper_by_type.R:22
     2: get_papers_count(url)
     3: xml2::read_html(url)
     4: read_html.default(url)
     5: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     6: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     7: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     8: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     9: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     10: open(x, "rb")
     11: open.connection(x, "rb")
    
     -- 23. Error: search returns 0 papers (@test_paper_by_type.R#35) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:35
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 24. Error: search returns 1 papers (@test_paper_by_type.R#47) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:47
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 25. Error: search returns 1 papers (@test_paper_by_type.R#60) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:60
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 26. Error: search returns 1 papers (@test_paper_by_type.R#73) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:73
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 27. Error: search returns 2 papers (@test_paper_by_type.R#86) --------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:86
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     -- 28. Error: search returns 1 papers (@test_paper_by_type.R#100) -------------
     SSL certificate problem: unable to get local issuer certificate
     1: xml2::read_html(my_url) at testthat/test_paper_by_type.R:100
     2: read_html.default(my_url)
     3: suppressWarnings(read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options))
     4: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
     5: read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
     6: read_xml.character(x, encoding = encoding, ..., as_html = TRUE, options = options)
     7: read_xml.connection(con, encoding = encoding, ..., as_html = as_html, base_url = x,
     options = options)
     8: open(x, "rb")
     9: open.connection(x, "rb")
    
     == testthat results ===========================================================
     OK: 33 SKIPPED: 0 FAILED: 28
     1. Error: (unknown) (@test_GTE-summary_by.R#7)
     2. Error: all queries match expected values (@test_GTE_paper_count.R#132)
     3. Error: document type = *journal-paper* matches (@test_document_type.R#11)
     4. Error: document type = *conference-paper* matches (@test_document_type.R#22)
     5. Error: make_search_url matches number of papers from_year to_year (@test_from_year_to_year.R#12)
     6. Error: is_dctype_enabled = FALSE (@test_is_dctype_enabled.R#8)
     7. Error: is_dctype_enabled = TRUE (@test_is_dctype_enabled.R#21)
     8. Error: both dataframes return rows - test #5 (@test_joining.R#11)
     9. Error: both dataframes return rows - test #3 (@test_joining.R#25)
     1. ...
    
     Error: testthat unit tests failed
     In addition: Warning messages:
     1: closing unused connection 11 (https://www.onepetro.org/search?q="neural+network"&peer_reviewed=&published_between=&from_year=&to_year=&dc_type=journal-paper)
     2: closing unused connection 9 (https://www.onepetro.org/search?q="mechanistic+performance"&peer_reviewed=&published_between=&from_year=&to_year=)
     3: closing unused connection 8 (https://www.onepetro.org/search?q="neural+network"&peer_reviewed=&published_between=&from_year=&to_year=)
     4: closing unused connection 7 (https://www.onepetro.org/search?q="neural+network"&peer_reviewed=&published_between=on&from_year=1970&to_year=1987)
     5: closing unused connection 5 (https://www.onepetro.org/search?q="downhole+flowrate+measurement"&peer_reviewed=FALSE&published_between=on&from_year=2001&to_year=2007)
     6: In .Internal(unique(x, incomparables, fromLast, nmax)) :
     closing unused connection 6 (https://www.onepetro.org/search?q="IPR+VLP+THP"&peer_reviewed=&published_between=&from_year=&to_year=)
     7: In .Internal(unique(x, incomparables, fromLast, nmax)) :
     closing unused connection 5 (https://www.onepetro.org/search?q="IPR+Prosper"&peer_reviewed=&published_between=&from_year=&to_year=)
     Execution halted
Flavor: r-oldrel-windows-ix86+x86_64