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-rw-r--r--tests/unistr/test-u-strstr.h210
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diff --git a/tests/unistr/test-u-strstr.h b/tests/unistr/test-u-strstr.h
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-/* Test of uN_strstr() functions.
- Copyright (C) 2004, 2007-2015 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-static void
-test_u_strstr (void)
-{
- {
- const UNIT input[] = { 'f', 'o', 'o', 0 };
- const UNIT needle[] = { 0 };
- const UNIT *result = U_STRSTR (input, needle);
- ASSERT (result == input);
- }
-
- {
- const UNIT input[] = { 'f', 'o', 'o', 0 };
- const UNIT needle[] = { 'o', 0 };
- const UNIT *result = U_STRSTR (input, needle);
- ASSERT (result == input + 1);
- }
-
- {
- const UNIT input[] =
- { 'A', 'B', 'C', ' ', 'A', 'B', 'C', 'D', 'A', 'B', ' ', 'A', 'B', 'C',
- 'D', 'A', 'B', 'C', 'D', 'A', 'B', 'D', 'E', 0
- };
- const UNIT needle[] = { 'A', 'B', 'C', 'D', 'A', 'B', 'D', 0 };
- const UNIT *result = U_STRSTR (input, needle);
- ASSERT (result == input + 15);
- }
-
- {
- const UNIT input[] =
- { 'A', 'B', 'C', ' ', 'A', 'B', 'C', 'D', 'A', 'B', ' ', 'A', 'B', 'C',
- 'D', 'A', 'B', 'C', 'D', 'A', 'B', 'D', 'E', 0
- };
- const UNIT needle[] = { 'A', 'B', 'C', 'D', 'A', 'B', 'E', 0 };
- const UNIT *result = U_STRSTR (input, needle);
- ASSERT (result == NULL);
- }
-
- {
- const UNIT input[] =
- { 'A', 'B', 'C', ' ', 'A', 'B', 'C', 'D', 'A', 'B', ' ', 'A', 'B', 'C',
- 'D', 'A', 'B', 'C', 'D', 'A', 'B', 'D', 'E', 0
- };
- const UNIT needle[] = { 'A', 'B', 'C', 'D', 'A', 'B', 'C', 'D', 0 };
- const UNIT *result = U_STRSTR (input, needle);
- ASSERT (result == input + 11);
- }
-
- /* Check that a long periodic needle does not cause false positives. */
- {
- const UNIT input[] =
- { 'F', '_', 'B', 'D', '_', 'C', 'E', '_', 'B', 'D', '_', 'E', 'F',
- '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D',
- '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', '_', 'C', '3',
- '_', '8', '8', '_', '2', '0', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D',
- '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', '_', 'C', '3',
- '_', 'A', '7', '_', '2', '0', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', 0
- };
- const UNIT needle[] =
- { '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F',
- '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D',
- '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', 0
- };
- const UNIT *result = U_STRSTR (input, needle);
- ASSERT (result == NULL);
- }
- {
- const UNIT input[] =
- { 'F', '_', 'B', 'D', '_', 'C', 'E', '_', 'B', 'D', '_', 'E', 'F',
- '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D',
- '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', '_', 'C', '3',
- '_', '8', '8', '_', '2', '0', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D',
- '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', '_', 'C', '3',
- '_', 'A', '7', '_', '2', '0', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'D', 'A', '_', 'B', '5', '_', 'C', '2',
- '_', 'A', '6', '_', '2', '0', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D',
- '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F',
- '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', 0
- };
- const UNIT needle[] =
- { '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F',
- '_', 'B', 'F', '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F',
- '_', 'B', 'D', '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D',
- '_', 'E', 'F', '_', 'B', 'F', '_', 'B', 'D', 0
- };
- const UNIT *result = U_STRSTR (input, needle);
- ASSERT (result == input + 115);
- }
-
- /* Check that a very long haystack is handled quickly if the needle is
- short and occurs near the beginning. */
- {
- size_t repeat = 10000;
- size_t m = 1000000;
- const UNIT needle[] =
- { 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 0
- };
- UNIT *haystack = (UNIT *) malloc ((m + 1) * sizeof (UNIT));
- if (haystack != NULL)
- {
- size_t i;
-
- haystack[0] = 'B';
- for (i = 1; i < m; i++)
- haystack[i] = 'A';
- haystack[m] = '\0';
-
- for (; repeat > 0; repeat--)
- {
- ASSERT (U_STRSTR (haystack, needle) == haystack + 1);
- }
-
- free (haystack);
- }
- }
-
- /* Check that a very long needle is discarded quickly if the haystack is
- short. */
- {
- size_t repeat = 10000;
- size_t m = 1000000;
- const UNIT haystack[] =
- { 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',
- 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'B',
- 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B',
- 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B',
- 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B',
- 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B',
- 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 'A', 'B', 0
- };
- UNIT *needle = (UNIT *) malloc ((m + 1) * sizeof (UNIT));
- if (needle != NULL)
- {
- size_t i;
-
- for (i = 0; i < m; i++)
- needle[i] = 'A';
- needle[m] = '\0';
-
- for (; repeat > 0; repeat--)
- {
- ASSERT (U_STRSTR (haystack, needle) == NULL);
- }
-
- free (needle);
- }
- }
-
- /* Check that the asymptotic worst-case complexity is not quadratic. */
- {
- size_t m = 1000000;
- UNIT *haystack = (UNIT *) malloc ((2 * m + 2) * sizeof (UNIT));
- UNIT *needle = (UNIT *) malloc ((m + 2) * sizeof (UNIT));
- if (haystack != NULL && needle != NULL)
- {
- size_t i;
- const UNIT *result;
-
- for (i = 0; i < 2 * m; i++)
- haystack[i] = 'A';
- haystack[2 * m] = 'B';
- haystack[2 * m + 1] = 0;
-
- for (i = 0; i < m; i++)
- needle[i] = 'A';
- needle[m] = 'B';
- needle[m + 1] = 0;
-
- result = U_STRSTR (haystack, needle);
- ASSERT (result == haystack + m);
- }
- free (needle);
- free (haystack);
- }
-}
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