2 This file is part of GNUnet
3 (C) 2012 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file regex/test_regex_eval_api.c
22 * @brief test for regex.c
23 * @author Maximilian Szengel
28 #include "gnunet_regex_lib.h"
36 struct Regex_String_Pair
41 enum Match_Result expected_results[20];
44 static const char allowed_literals[] =
45 "0123456789" "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz";
48 test_random (unsigned int rx_length, unsigned int max_str_len,
49 unsigned int str_count)
54 char rand_rx[rx_length + 1];
55 char matching_str[str_count][max_str_len + 1];
63 struct GNUNET_REGEX_Automaton *dfa;
65 regmatch_t matchptr[1];
70 // At least one string is needed for matching
71 GNUNET_assert (str_count > 0);
72 // The string should be at least as long as the regex itself
73 GNUNET_assert (max_str_len >= rx_length);
76 matching_strp = matching_str[0];
80 // Generate random regex and a string that matches the regex
81 for (i = 0; i < rx_length; i++)
83 char_op_switch = 0 + (int) (1.0 * rand () / (RAND_MAX + 1.0));
85 if (0 == char_op_switch && !last_was_op)
102 if (i < rx_length - 1) // '|' cannot be at the end
106 allowed_literals[rand () % (sizeof (allowed_literals) - 1)];
113 allowed_literals[rand () % (sizeof (allowed_literals) - 1)];
117 if (current_char != '+' && current_char != '*' && current_char != '?' &&
120 *matching_strp = current_char;
124 *rand_rxp = current_char;
128 *matching_strp = '\0';
130 // Generate some random strings for matching...
131 // Start at 1, because the first string is generated above during regex generation
132 for (i = 1; i < str_count; i++)
134 str_len = rand () % max_str_len;
135 for (j = 0; j < str_len; j++)
137 allowed_literals[rand () % (sizeof (allowed_literals) - 1)];
138 matching_str[i][str_len] = '\0';
143 for (i = 0; i < str_count; i++)
145 // Match string using DFA
146 dfa = GNUNET_REGEX_construct_dfa (rand_rx, strlen (rand_rx));
149 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Constructing DFA failed\n");
153 eval = GNUNET_REGEX_eval (dfa, matching_str[i]);
154 GNUNET_REGEX_automaton_destroy (dfa);
156 // Match string using glibc regex
157 if (0 != regcomp (&rx, rand_rx, REG_EXTENDED))
159 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
160 "Could not compile regex using regcomp\n");
164 eval_check = regexec (&rx, matching_str[i], 1, matchptr, 0);
167 // We only want to match the whole string, because that's what our DFA does, too.
168 if (eval_check == 0 &&
169 (matchptr[0].rm_so != 0 ||
170 matchptr[0].rm_eo != strlen (matching_str[i])))
174 if (eval_check != eval)
176 regerror (eval_check, &rx, error, sizeof error);
177 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
178 "Unexpected result:\nregex: %s\nstring: %s\ngnunet regex: %i\nglibc regex: %i\nglibc error: %s\n\n",
179 rand_rx, matching_str, eval, eval_check, error);
187 test_automaton (struct GNUNET_REGEX_Automaton *a, regex_t * rx,
188 struct Regex_String_Pair *rxstr)
194 regmatch_t matchptr[1];
199 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Automaton was NULL\n");
205 for (i = 0; i < rxstr->string_count; i++)
207 eval = GNUNET_REGEX_eval (a, rxstr->strings[i]);
208 eval_check = regexec (rx, rxstr->strings[i], 1, matchptr, 0);
210 // We only want to match the whole string, because that's what our DFA does, too.
211 if (eval_check == 0 &&
212 (matchptr[0].rm_so != 0 ||
213 matchptr[0].rm_eo != strlen (rxstr->strings[i])))
216 if ((rxstr->expected_results[i] == match && (0 != eval || 0 != eval_check))
217 || (rxstr->expected_results[i] == nomatch &&
218 (0 == eval || 0 == eval_check)))
221 regerror (eval_check, rx, error, sizeof error);
222 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
223 "Unexpected result:\nregex: %s\nstring: %s\nexpected result: %i\n"
224 "gnunet regex: %i\nglibc regex: %i\nglibc error: %s\nrm_so: %i\nrm_eo: %i\n\n",
225 rxstr->regex, rxstr->strings[i], rxstr->expected_results[i],
226 eval, eval_check, error, matchptr[0].rm_so,
234 main (int argc, char *argv[])
236 GNUNET_log_setup ("test-regex",
244 struct GNUNET_REGEX_Automaton *a;
251 struct Regex_String_Pair rxstr[5] = {
253 {"ababcd", "abab", "aabcd", "a", "abb"},
254 {match, nomatch, match, match, nomatch}},
255 {"ab(c|d)+c*(a(b|c)d)+", 5,
256 {"abcdcdcdcdddddabd", "abcd", "abcddddddccccccccccccccccccccccccabdacdabd",
257 "abccccca", "abcdcdcdccdabdabd"},
258 {match, nomatch, match, nomatch, match}},
259 {"ab+c*(a(bx|c)d)+", 5,
260 {"abcdcdcdcdddddabd", "abcd", "abcddddddccccccccccccccccccccccccabdacdabd",
261 "abccccca", "abcdcdcdccdabdabd"},
262 {nomatch, nomatch, nomatch, nomatch, nomatch}},
263 {"k|a+X*y+c|Q*e|p|R|Z*K*y*R+w|Y*6+n+h*k*w+V*F|W*B*e*g|N+V|t+L|P*j*3*9+X*h*J|J*6|b|E*i*f*R+S|Z|R|Y*Z|g*", 1,
264 {"kaXycQepRZKyRwY6nhkwVFWBegNVtLPj39XhJJ6bEifRSZRYZg"},
266 {"F?W+m+2*6*c*s|P?U?a|B|y*i+t+A|V|6*C*7*e?Z*n*i|J?5+g?W*V?7*j?p?1|r?B?C+E+3+6*i+W*P?K?0|D+7?y*m+3?g?K?", 1,
267 {"osfjsodfonONONOnosndfsdnfsd"},
275 for (i = 0; i < 5; i++)
277 if (0 != regcomp (&rx, rxstr[i].regex, REG_EXTENDED))
279 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
280 "Could not compile regex using regcomp()\n");
285 a = GNUNET_REGEX_construct_nfa (rxstr[i].regex, strlen (rxstr[i].regex));
286 check_nfa += test_automaton (a, &rx, &rxstr[i]);
287 GNUNET_REGEX_automaton_destroy (a);
290 a = GNUNET_REGEX_construct_dfa (rxstr[i].regex, strlen (rxstr[i].regex));
291 check_dfa += test_automaton (a, &rx, &rxstr[i]);
292 GNUNET_REGEX_automaton_destroy (a);
298 for (i = 0; i < 100; i++)
299 check_rand += test_random (100, 150, 20);
301 return check_nfa + check_dfa + check_rand;