Running 'testthat.R' [13s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > Sys.setenv("R_TESTS" = "")
  > library(testthat)
  > library(text2vec)
  > library(mlapi)
  > data("movie_review")
  > test_check("text2vec")
  -- 1. Error: (unknown) (@test-colloc.R#10)  ------------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(tokens) at testthat/test-colloc.R:10
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 2. Error: (unknown) (@test-distances.R#8)  ----------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(tokens) at testthat/test-distances.R:8
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 3. Error: (unknown) (@test-hash-corpus.R#7)  --------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(tokens) at testthat/test-hash-corpus.R:7
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 4. Error: ifiles (@test-iterators.R#24)  ------------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: create_vocabulary(it2) at testthat/test-iterators.R:24
  2: create_vocabulary.itoken(it2)
  3: foreach(tokens = it) %do% {
         vocabulary_insert_document_batch_generic(vocab_ptr, tokens$tokens)
     }
  4: e$fun(obj, substitute(ex), parent.frame(), e$data)
  5: tryCatch({
         repeat {
             args <- nextElem(it)
             if (obj$verbose) {
                 cat(sprintf("evaluation # %d:\n", i))
                 print(args)
             }
             for (a in names(args)) assign(a, args[[a]], pos = envir, inherits = FALSE)
             r <- tryCatch(eval(xpr, envir = envir), error = function(e) e)
             if (obj$verbose) {
                 cat("result of evaluating expression:\n")
                 print(r)
             }
             tryCatch(accumulator(list(r), i), error = function(e) {
                 cat("error calling combine function:\n")
                 print(e)
                 NULL
             })
             i <- i + 1
         }
     }, error = function(e) {
         if (!identical(conditionMessage(e), "StopIteration")) 
             stop(simpleError(conditionMessage(e), expr))
     })
  6: tryCatchList(expr, classes, parentenv, handlers)
  7: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  8: value[[3L]](cond)
  
  -- 5. Error: ifiles_parallel (@test-iterators.R#37)  ---------------------------
  task 1 failed - "undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines"
  1: create_vocabulary(it2) at testthat/test-iterators.R:37
  2: create_vocabulary.itoken_parallel(it2)
  3: foreach(it = it, .combine = combine_vocabulary, .inorder = FALSE, .multicombine = TRUE, 
         ...) %dopar% {
         create_vocabulary(it, ngram, stopwords)
     }
  4: e$fun(obj, substitute(ex), parent.frame(), e$data)
  
  -- 6. Error: itoken character (@test-iterators.R#59)  --------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: create_vocabulary(it2) at testthat/test-iterators.R:59
  2: create_vocabulary.itoken(it2)
  3: foreach(tokens = it) %do% {
         vocabulary_insert_document_batch_generic(vocab_ptr, tokens$tokens)
     }
  4: e$fun(obj, substitute(ex), parent.frame(), e$data)
  5: tryCatch({
         repeat {
             args <- nextElem(it)
             if (obj$verbose) {
                 cat(sprintf("evaluation # %d:\n", i))
                 print(args)
             }
             for (a in names(args)) assign(a, args[[a]], pos = envir, inherits = FALSE)
             r <- tryCatch(eval(xpr, envir = envir), error = function(e) e)
             if (obj$verbose) {
                 cat("result of evaluating expression:\n")
                 print(r)
             }
             tryCatch(accumulator(list(r), i), error = function(e) {
                 cat("error calling combine function:\n")
                 print(e)
                 NULL
             })
             i <- i + 1
         }
     }, error = function(e) {
         if (!identical(conditionMessage(e), "StopIteration")) 
             stop(simpleError(conditionMessage(e), expr))
     })
  6: tryCatchList(expr, classes, parentenv, handlers)
  7: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  8: value[[3L]](cond)
  
  -- 7. Error: itoken character parallel (@test-iterators.R#65)  -----------------
  task 1 failed - "undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines"
  1: create_vocabulary(it2) at testthat/test-iterators.R:65
  2: create_vocabulary.itoken_parallel(it2)
  3: foreach(it = it, .combine = combine_vocabulary, .inorder = FALSE, .multicombine = TRUE, 
         ...) %dopar% {
         create_vocabulary(it, ngram, stopwords)
     }
  4: e$fun(obj, substitute(ex), parent.frame(), e$data)
  
  -- 8. Error: itoken list parallel (@test-iterators.R#70)  ----------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(tolower(txt_1)) at testthat/test-iterators.R:70
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 9. Error: immutable input iterators (@test-iterators.R#88)  -----------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: space_tokenizer(tokens) at testthat/test-iterators.R:88
  2: stringi::stri_split_fixed
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 10. Error: (unknown) (@test-lda.R#9)  ---------------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(txt) at testthat/test-lda.R:9
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 11. Error: (unknown) (@test-lsa.R#7)  ---------------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(tokens) at testthat/test-lsa.R:7
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 12. Error: (unknown) (@test-s3-interface.R#7)  ------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(txt) at testthat/test-s3-interface.R:7
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 13. Error: (unknown) (@test-tcm.R#10)  --------------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(tokens) at testthat/test-tcm.R:10
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 14. Error: (unknown) (@test-utils.R#6)  -------------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: create_dtm(it, hash_vectorizer(2^8), "dgTMatrix") at testthat/test-utils.R:6
  2: create_dtm.itoken(it, hash_vectorizer(2^8), "dgTMatrix")
  3: vectorizer(it, grow_dtm = TRUE, skip_grams_window_context = "symmetric", window_size = 0, 
         weights = numeric(0))
  4: corpus_insert(hash_corpus_ptr, iterator, grow_dtm, skip_grams_window_context, window_size, 
         weights)
  5: foreach(val = it, .combine = c, .multicombine = TRUE) %do% {
         res = corpus_insert_generic(corpus_ptr, val$tokens, grow_dtm, skip_grams_window_context_code, 
             window_size, weights)
         if (!res) 
             stop("something went wrong during insert into corpus")
         val$ids
     }
  6: e$fun(obj, substitute(ex), parent.frame(), e$data)
  7: tryCatch({
         repeat {
             args <- nextElem(it)
             if (obj$verbose) {
                 cat(sprintf("evaluation # %d:\n", i))
                 print(args)
             }
             for (a in names(args)) assign(a, args[[a]], pos = envir, inherits = FALSE)
             r <- tryCatch(eval(xpr, envir = envir), error = function(e) e)
             if (obj$verbose) {
                 cat("result of evaluating expression:\n")
                 print(r)
             }
             tryCatch(accumulator(list(r), i), error = function(e) {
                 cat("error calling combine function:\n")
                 print(e)
                 NULL
             })
             i <- i + 1
         }
     }, error = function(e) {
         if (!identical(conditionMessage(e), "StopIteration")) 
             stop(simpleError(conditionMessage(e), expr))
     })
  8: tryCatchList(expr, classes, parentenv, handlers)
  9: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  10: value[[3L]](cond)
  
  -- 15. Error: (unknown) (@test-vocab-corpus.R#9)  ------------------------------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: word_tokenizer(txt) at testthat/test-vocab-corpus.R:9
  2: stringi::stri_split_boundaries
  3: getExportedValue(pkg, name)
  4: asNamespace(ns)
  5: getNamespace(ns)
  6: tryCatch(loadNamespace(name), error = function(e) stop(e))
  7: tryCatchList(expr, classes, parentenv, handlers)
  8: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  9: value[[3L]](cond)
  
  -- 16. Error: Vocabulary with foreach (@test-vocab-high-level.R#21)  -----------
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_info, stri_enc_isascii, stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le, stri_enc_isutf8, stri_enc_list, stri_enc_mark, stri_enc_set, stri_enc_toascii, stri_enc_tonative, stri_enc_toutf32, stri_enc_toutf8, stri_encode, stri_endswith, stri_endswith_charclass, stri_endswith_coll, stri_endswith_fixed, stri_escape_unicode, stri_extract, stri_extract_all, stri_extract_all_boundaries, stri_extract_all_charclass, stri_extract_all_coll, stri_extract_all_fixed, stri_extract_all_regex, stri_extract_all_words, stri_extract_first, stri_extract_first_boundaries, stri_extract_first_charclass, stri_extract_first_coll, stri_extract_first_fixed, stri_extract_first_regex, stri_extract_first_words, stri_extract_last, stri_extract_last_boundaries, stri_extract_last_charclass, stri_extract_last_coll, stri_extract_last_fixed, stri_extract_last_regex, stri_extract_last_words, stri_flatten, stri_info, stri_isempty, stri_join, stri_join_list, stri_length, stri_list2matrix, stri_locale_get, stri_locale_info, stri_locale_list, stri_locale_set, stri_locate, stri_locate_all, stri_locate_all_boundaries, stri_locate_all_charclass, stri_locate_all_coll, stri_locate_all_fixed, stri_locate_all_regex, stri_locate_all_words, stri_locate_first, stri_locate_first_boundaries, stri_locate_first_charclass, stri_locate_first_coll, stri_locate_first_fixed, stri_locate_first_regex, stri_locate_first_words, stri_locate_last, stri_locate_last_boundaries, stri_locate_last_charclass, stri_locate_last_coll, stri_locate_last_fixed, stri_locate_last_regex, stri_locate_last_words, stri_match, stri_match_all, stri_match_all_regex, stri_match_first, stri_match_first_regex, stri_match_last, stri_match_last_regex, stri_na2empty, stri_numbytes, stri_opts_brkiter, stri_opts_collator, stri_opts_fixed, stri_opts_regex, stri_order, stri_pad, stri_pad_both, stri_pad_left, stri_pad_right, stri_paste, stri_paste_list, stri_rand_lipsum, stri_rand_shuffle, stri_rand_strings, stri_read_lines, stri_read_raw, stri_remove_empty, stri_replace, stri_replace_all, stri_replace_all_charclass, stri_replace_all_coll, stri_replace_all_fixed, stri_replace_all_regex, stri_replace_first, stri_replace_first_charclass, stri_replace_first_coll, stri_replace_first_fixed, stri_replace_first_regex, stri_replace_last, stri_replace_last_charclass, stri_replace_last_coll, stri_replace_last_fixed, stri_replace_last_regex, stri_replace_na, stri_reverse, stri_sort, stri_split, stri_split_boundaries, stri_split_charclass, stri_split_coll, stri_split_fixed, stri_split_lines, stri_split_lines1, stri_split_regex, stri_startswith, stri_startswith_charclass, stri_startswith_coll, stri_startswith_fixed, stri_stats_general, stri_stats_latex, stri_sub, stri_subset, stri_subset_charclass, stri_subset_coll, stri_subset_fixed, stri_subset_regex, stri_timezone_get, stri_timezone_info, stri_timezone_list, stri_timezone_set, stri_trans_char, stri_trans_general, stri_trans_isnfc, stri_trans_isnfd, stri_trans_isnfkc, stri_trans_isnfkc_casefold, stri_trans_isnfkd, stri_trans_list, stri_trans_nfc, stri_trans_nfd, stri_trans_nfkc, stri_trans_nfkc_casefold, stri_trans_nfkd, stri_trans_tolower, stri_trans_totitle, stri_trans_toupper, stri_trim, stri_trim_both, stri_trim_left, stri_trim_right, stri_unescape_unicode, stri_unique, stri_width, stri_wrap, stri_write_lines
  1: create_vocabulary(iterator) at testthat/test-vocab-high-level.R:21
  2: create_vocabulary.itoken(iterator)
  3: foreach(tokens = it) %do% {
         vocabulary_insert_document_batch_generic(vocab_ptr, tokens$tokens)
     }
  4: e$fun(obj, substitute(ex), parent.frame(), e$data)
  5: tryCatch({
         repeat {
             args <- nextElem(it)
             if (obj$verbose) {
                 cat(sprintf("evaluation # %d:\n", i))
                 print(args)
             }
             for (a in names(args)) assign(a, args[[a]], pos = envir, inherits = FALSE)
             r <- tryCatch(eval(xpr, envir = envir), error = function(e) e)
             if (obj$verbose) {
                 cat("result of evaluating expression:\n")
                 print(r)
             }
             tryCatch(accumulator(list(r), i), error = function(e) {
                 cat("error calling combine function:\n")
                 print(e)
                 NULL
             })
             i <- i + 1
         }
     }, error = function(e) {
         if (!identical(conditionMessage(e), "StopIteration")) 
             stop(simpleError(conditionMessage(e), expr))
     })
  6: tryCatchList(expr, classes, parentenv, handlers)
  7: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  8: value[[3L]](cond)
  
  == testthat results  ===========================================================
  OK: 1 SKIPPED: 1 FAILED: 16
  1. Error: (unknown) (@test-colloc.R#10) 
  2. Error: (unknown) (@test-distances.R#8) 
  3. Error: (unknown) (@test-hash-corpus.R#7) 
  4. Error: ifiles (@test-iterators.R#24) 
  5. Error: ifiles_parallel (@test-iterators.R#37) 
  6. Error: itoken character (@test-iterators.R#59) 
  7. Error: itoken character parallel (@test-iterators.R#65) 
  8. Error: itoken list parallel (@test-iterators.R#70) 
  9. Error: immutable input iterators (@test-iterators.R#88) 
  1. ...
  
  Error: testthat unit tests failed
  Execution halted