36f33b5629
This follows up commitebd09577be("lib/test: convert lib/test_list_sort.c to use KUnit"). Converting this test to KUnit makes the test a bit shorter, standardizes how it reports pass/fail, and adds an easier way to run the test [1]. Likeebd09577be, this leaves the file and Kconfig option name the same, but slightly changes their dependencies (needs CONFIG_KUNIT). [1] Can be run via $ ./tools/testing/kunit/kunit.py run --kunitconfig /dev/stdin <<EOF CONFIG_KUNIT=y CONFIG_TEST_SORT=y EOF [11:30:27] Starting KUnit Kernel ... [11:30:30] ============================================================ [11:30:30] ======== [PASSED] lib_sort ======== [11:30:30] [PASSED] test_sort [11:30:30] ============================================================ [11:30:30] Testing complete. 1 tests run. 0 failed. 0 crashed. 0 skipped. [11:30:30] Elapsed time: 37.032s total, 0.001s configuring, 34.090s building, 0.000s running Note: this is the time it took after a `make mrproper`. With an incremental rebuild, this looks more like: [11:38:58] Elapsed time: 6.444s total, 0.001s configuring, 3.416s building, 0.000s running Since the test has no dependencies, it can also be run (with some other tests) with just: $ ./tools/testing/kunit/kunit.py run Link: https://lkml.kernel.org/r/20210715232441.1380885-1-dlatypov@google.com Signed-off-by: Daniel Latypov <dlatypov@google.com> Cc: Pravin Shedge <pravin.shedge4linux@gmail.com> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: David Gow <davidgow@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
49 lines
907 B
C
49 lines
907 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <kunit/test.h>
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#include <linux/sort.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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/* a simple boot-time regression test */
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#define TEST_LEN 1000
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static int cmpint(const void *a, const void *b)
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{
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return *(int *)a - *(int *)b;
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}
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static void test_sort(struct kunit *test)
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{
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int *a, i, r = 1;
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a = kunit_kmalloc_array(test, TEST_LEN, sizeof(*a), GFP_KERNEL);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a);
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for (i = 0; i < TEST_LEN; i++) {
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r = (r * 725861) % 6599;
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a[i] = r;
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}
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sort(a, TEST_LEN, sizeof(*a), cmpint, NULL);
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for (i = 0; i < TEST_LEN-1; i++)
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KUNIT_ASSERT_LE(test, a[i], a[i + 1]);
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}
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static struct kunit_case sort_test_cases[] = {
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KUNIT_CASE(test_sort),
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{}
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};
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static struct kunit_suite sort_test_suite = {
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.name = "lib_sort",
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.test_cases = sort_test_cases,
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};
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kunit_test_suites(&sort_test_suite);
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MODULE_LICENSE("GPL");
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