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Diffstat (limited to 'elf/tst-dl-hwcaps_split.c')
| -rw-r--r-- | elf/tst-dl-hwcaps_split.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/elf/tst-dl-hwcaps_split.c b/elf/tst-dl-hwcaps_split.c new file mode 100644 index 0000000000..3641594270 --- /dev/null +++ b/elf/tst-dl-hwcaps_split.c @@ -0,0 +1,148 @@ +/* Unit tests for dl-hwcaps.c. + Copyright (C) 2020 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 <array_length.h> +#include <dl-hwcaps.h> +#include <string.h> +#include <support/check.h> + +static void +check_split_masked (const char *input, int32_t bitmask, const char *mask, + const char *expected[], size_t expected_length) +{ + struct dl_hwcaps_split_masked split; + _dl_hwcaps_split_masked_init (&split, input, bitmask, mask); + size_t index = 0; + while (_dl_hwcaps_split_masked (&split)) + { + TEST_VERIFY_EXIT (index < expected_length); + TEST_COMPARE_BLOB (expected[index], strlen (expected[index]), + split.split.segment, split.split.length); + ++index; + } + TEST_COMPARE (index, expected_length); +} + +static void +check_split (const char *input, + const char *expected[], size_t expected_length) +{ + struct dl_hwcaps_split split; + _dl_hwcaps_split_init (&split, input); + size_t index = 0; + while (_dl_hwcaps_split (&split)) + { + TEST_VERIFY_EXIT (index < expected_length); + TEST_COMPARE_BLOB (expected[index], strlen (expected[index]), + split.segment, split.length); + ++index; + } + TEST_COMPARE (index, expected_length); + + /* Reuse the test cases with masking that does not actually remove + anything. */ + check_split_masked (input, -1, NULL, expected, expected_length); + check_split_masked (input, -1, input, expected, expected_length); +} + +static int +do_test (void) +{ + /* Splitting tests, without masking. */ + check_split (NULL, NULL, 0); + check_split ("", NULL, 0); + check_split (":", NULL, 0); + check_split ("::", NULL, 0); + + { + const char *expected[] = { "first" }; + check_split ("first", expected, array_length (expected)); + check_split (":first", expected, array_length (expected)); + check_split ("first:", expected, array_length (expected)); + check_split (":first:", expected, array_length (expected)); + } + + { + const char *expected[] = { "first", "second" }; + check_split ("first:second", expected, array_length (expected)); + check_split ("first::second", expected, array_length (expected)); + check_split (":first:second", expected, array_length (expected)); + check_split ("first:second:", expected, array_length (expected)); + check_split (":first:second:", expected, array_length (expected)); + } + + /* Splitting tests with masking. */ + { + const char *expected[] = { "first" }; + check_split_masked ("first", 3, "first:second", + expected, array_length (expected)); + check_split_masked ("first:second", 3, "first:", + expected, array_length (expected)); + check_split_masked ("first:second", 1, NULL, + expected, array_length (expected)); + } + { + const char *expected[] = { "second" }; + check_split_masked ("first:second", 3, "second", + expected, array_length (expected)); + check_split_masked ("first:second:third", -1, "second:", + expected, array_length (expected)); + check_split_masked ("first:second", 2, NULL, + expected, array_length (expected)); + check_split_masked ("first:second:third", 2, "first:second", + expected, array_length (expected)); + } + + /* Tests for _dl_hwcaps_contains. */ + TEST_VERIFY (_dl_hwcaps_contains (NULL, "first", strlen ("first"))); + TEST_VERIFY (_dl_hwcaps_contains (NULL, "", 0)); + TEST_VERIFY (! _dl_hwcaps_contains ("", "first", strlen ("first"))); + TEST_VERIFY (! _dl_hwcaps_contains ("firs", "first", strlen ("first"))); + TEST_VERIFY (_dl_hwcaps_contains ("firs", "first", strlen ("first") - 1)); + for (int i = 0; i < strlen ("first"); ++i) + TEST_VERIFY (! _dl_hwcaps_contains ("first", "first", i)); + TEST_VERIFY (_dl_hwcaps_contains ("first", "first", strlen ("first"))); + TEST_VERIFY (_dl_hwcaps_contains ("first:", "first", strlen ("first"))); + TEST_VERIFY (_dl_hwcaps_contains ("first:second", + "first", strlen ("first"))); + TEST_VERIFY (_dl_hwcaps_contains (":first:second", "first", + strlen ("first"))); + TEST_VERIFY (_dl_hwcaps_contains ("first:second", "second", + strlen ("second"))); + TEST_VERIFY (_dl_hwcaps_contains ("first:second:", "second", + strlen ("second"))); + TEST_VERIFY (_dl_hwcaps_contains ("first::second:", "second", + strlen ("second"))); + TEST_VERIFY (_dl_hwcaps_contains ("first:second::", "second", + strlen ("second"))); + for (int i = 0; i < strlen ("second"); ++i) + { + TEST_VERIFY (!_dl_hwcaps_contains ("first:second", "second", i)); + TEST_VERIFY (!_dl_hwcaps_contains ("first:second:", "second", i)); + TEST_VERIFY (!_dl_hwcaps_contains ("first:second::", "second", i)); + TEST_VERIFY (!_dl_hwcaps_contains ("first::second", "second", i)); + } + + return 0; +} + +#include <support/test-driver.c> + +/* Rebuild the sources here because the object file is built for + inclusion into the dynamic loader. */ +#include "dl-hwcaps_split.c" |