// SPDX-License-Identifier: GPL-2.0-only #include <kunit/test.h> #include <linux/sort.h> #include <linux/slab.h> #include <linux/module.h> /* a simple boot-time regression test */ #define TEST_LEN 1000 static int cmpint(const void *a, const void *b) { return *(int *)a - *(int *)b; } static void test_sort(struct kunit *test) { int *a, i, r = 1; a = kunit_kmalloc_array(test, TEST_LEN, sizeof(*a), GFP_KERNEL); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a); for (i = 0; i < TEST_LEN; i++) { r = (r * 725861) % 6599; a[i] = r; } sort(a, TEST_LEN, sizeof(*a), cmpint, NULL); for (i = 0; i < TEST_LEN-1; i++) KUNIT_ASSERT_LE(test, a[i], a[i + 1]); } static struct kunit_case sort_test_cases[] = { KUNIT_CASE(test_sort), {} }; static struct kunit_suite sort_test_suite = { .name = "lib_sort", .test_cases = sort_test_cases, }; kunit_test_suites(&sort_test_suite); MODULE_LICENSE("GPL");