diff options
Diffstat (limited to 'support/tst-test_compare_string_wide.c')
| -rw-r--r-- | support/tst-test_compare_string_wide.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/support/tst-test_compare_string_wide.c b/support/tst-test_compare_string_wide.c new file mode 100644 index 0000000000..548f7dcdc6 --- /dev/null +++ b/support/tst-test_compare_string_wide.c @@ -0,0 +1,107 @@ +/* Basic test for the TEST_COMPARE_STRING_WIDE macro. + Copyright (C) 2018-2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <string.h> +#include <support/check.h> +#include <support/capture_subprocess.h> + +static void +subprocess (void *closure) +{ + /* These tests should fail. They were chosen to cover differences + in length (with the same contents), single-bit mismatches, and + mismatching null pointers. */ + TEST_COMPARE_STRING_WIDE (L"", NULL); /* Line 29. */ + TEST_COMPARE_STRING_WIDE (L"X", L""); /* Line 30. */ + TEST_COMPARE_STRING_WIDE (NULL, L"X"); /* Line 31. */ + TEST_COMPARE_STRING_WIDE (L"abcd", L"abcD"); /* Line 32. */ + TEST_COMPARE_STRING_WIDE (L"abcd", NULL); /* Line 33. */ + TEST_COMPARE_STRING_WIDE (NULL, L"abcd"); /* Line 34. */ +} + +/* Same contents, different addresses. */ +wchar_t buffer_abc_1[] = L"abc"; +wchar_t buffer_abc_2[] = L"abc"; + +static int +do_test (void) +{ + /* This should succeed. Even if the pointers and array contents are + different, zero-length inputs are not different. */ + TEST_COMPARE_STRING_WIDE (NULL, NULL); + TEST_COMPARE_STRING_WIDE (L"", L""); + TEST_COMPARE_STRING_WIDE (buffer_abc_1, buffer_abc_2); + TEST_COMPARE_STRING_WIDE (buffer_abc_1, L"abc"); + + struct support_capture_subprocess proc = support_capture_subprocess + (&subprocess, NULL); + + /* Discard the reported error. */ + support_record_failure_reset (); + + puts ("info: *** subprocess output starts ***"); + fputs (proc.out.buffer, stdout); + puts ("info: *** subprocess output ends ***"); + + TEST_VERIFY + (strcmp (proc.out.buffer, +"tst-test_compare_string_wide.c:29: error: string comparison failed\n" +" left string: 0 wide characters\n" +" right string: NULL\n" +"tst-test_compare_string_wide.c:30: error: string comparison failed\n" +" left string: 1 wide characters\n" +" right string: 0 wide characters\n" +" left (evaluated from L\"X\"):\n" +" L\"X\"\n" +" 58\n" +"tst-test_compare_string_wide.c:31: error: string comparison failed\n" +" left string: NULL\n" +" right string: 1 wide characters\n" +" right (evaluated from L\"X\"):\n" +" L\"X\"\n" +" 58\n" +"tst-test_compare_string_wide.c:32: error: string comparison failed\n" +" string length: 4 wide characters\n" +" left (evaluated from L\"abcd\"):\n" +" L\"abcd\"\n" +" 61 62 63 64\n" +" right (evaluated from L\"abcD\"):\n" +" L\"abcD\"\n" +" 61 62 63 44\n" +"tst-test_compare_string_wide.c:33: error: string comparison failed\n" +" left string: 4 wide characters\n" +" right string: NULL\n" +" left (evaluated from L\"abcd\"):\n" +" L\"abcd\"\n" +" 61 62 63 64\n" +"tst-test_compare_string_wide.c:34: error: string comparison failed\n" +" left string: NULL\n" +" right string: 4 wide characters\n" +" right (evaluated from L\"abcd\"):\n" +" L\"abcd\"\n" +" 61 62 63 64\n" + ) == 0); + + /* Check that there is no output on standard error. */ + support_capture_subprocess_check (&proc, "TEST_COMPARE_STRING_WIDE", + 0, sc_allow_stdout); + + return 0; +} + +#include <support/test-driver.c> |