diff options
Diffstat (limited to 'lib/string_kunit.c')
| -rw-r--r-- | lib/string_kunit.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/lib/string_kunit.c b/lib/string_kunit.c deleted file mode 100644 index eabf025cf77c..000000000000 --- a/lib/string_kunit.c +++ /dev/null @@ -1,199 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Test cases for string functions. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <kunit/test.h> -#include <linux/module.h> -#include <linux/printk.h> -#include <linux/slab.h> -#include <linux/string.h> - -static void test_memset16(struct kunit *test) -{ - unsigned i, j, k; - u16 v, *p; - - p = kunit_kzalloc(test, 256 * 2 * 2, GFP_KERNEL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p); - - for (i = 0; i < 256; i++) { - for (j = 0; j < 256; j++) { - memset(p, 0xa1, 256 * 2 * sizeof(v)); - memset16(p + i, 0xb1b2, j); - for (k = 0; k < 512; k++) { - v = p[k]; - if (k < i) { - KUNIT_ASSERT_EQ_MSG(test, v, 0xa1a1, - "i:%d j:%d k:%d", i, j, k); - } else if (k < i + j) { - KUNIT_ASSERT_EQ_MSG(test, v, 0xb1b2, - "i:%d j:%d k:%d", i, j, k); - } else { - KUNIT_ASSERT_EQ_MSG(test, v, 0xa1a1, - "i:%d j:%d k:%d", i, j, k); - } - } - } - } -} - -static void test_memset32(struct kunit *test) -{ - unsigned i, j, k; - u32 v, *p; - - p = kunit_kzalloc(test, 256 * 2 * 4, GFP_KERNEL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p); - - for (i = 0; i < 256; i++) { - for (j = 0; j < 256; j++) { - memset(p, 0xa1, 256 * 2 * sizeof(v)); - memset32(p + i, 0xb1b2b3b4, j); - for (k = 0; k < 512; k++) { - v = p[k]; - if (k < i) { - KUNIT_ASSERT_EQ_MSG(test, v, 0xa1a1a1a1, - "i:%d j:%d k:%d", i, j, k); - } else if (k < i + j) { - KUNIT_ASSERT_EQ_MSG(test, v, 0xb1b2b3b4, - "i:%d j:%d k:%d", i, j, k); - } else { - KUNIT_ASSERT_EQ_MSG(test, v, 0xa1a1a1a1, - "i:%d j:%d k:%d", i, j, k); - } - } - } - } -} - -static void test_memset64(struct kunit *test) -{ - unsigned i, j, k; - u64 v, *p; - - p = kunit_kzalloc(test, 256 * 2 * 8, GFP_KERNEL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p); - - for (i = 0; i < 256; i++) { - for (j = 0; j < 256; j++) { - memset(p, 0xa1, 256 * 2 * sizeof(v)); - memset64(p + i, 0xb1b2b3b4b5b6b7b8ULL, j); - for (k = 0; k < 512; k++) { - v = p[k]; - if (k < i) { - KUNIT_ASSERT_EQ_MSG(test, v, 0xa1a1a1a1a1a1a1a1ULL, - "i:%d j:%d k:%d", i, j, k); - } else if (k < i + j) { - KUNIT_ASSERT_EQ_MSG(test, v, 0xb1b2b3b4b5b6b7b8ULL, - "i:%d j:%d k:%d", i, j, k); - } else { - KUNIT_ASSERT_EQ_MSG(test, v, 0xa1a1a1a1a1a1a1a1ULL, - "i:%d j:%d k:%d", i, j, k); - } - } - } - } -} - -static void test_strchr(struct kunit *test) -{ - const char *test_string = "abcdefghijkl"; - const char *empty_string = ""; - char *result; - int i; - - for (i = 0; i < strlen(test_string) + 1; i++) { - result = strchr(test_string, test_string[i]); - KUNIT_ASSERT_EQ_MSG(test, result - test_string, i, - "char:%c", 'a' + i); - } - - result = strchr(empty_string, '\0'); - KUNIT_ASSERT_PTR_EQ(test, result, empty_string); - - result = strchr(empty_string, 'a'); - KUNIT_ASSERT_NULL(test, result); - - result = strchr(test_string, 'z'); - KUNIT_ASSERT_NULL(test, result); -} - -static void test_strnchr(struct kunit *test) -{ - const char *test_string = "abcdefghijkl"; - const char *empty_string = ""; - char *result; - int i, j; - - for (i = 0; i < strlen(test_string) + 1; i++) { - for (j = 0; j < strlen(test_string) + 2; j++) { - result = strnchr(test_string, j, test_string[i]); - if (j <= i) { - KUNIT_ASSERT_NULL_MSG(test, result, - "char:%c i:%d j:%d", 'a' + i, i, j); - } else { - KUNIT_ASSERT_EQ_MSG(test, result - test_string, i, - "char:%c i:%d j:%d", 'a' + i, i, j); - } - } - } - - result = strnchr(empty_string, 0, '\0'); - KUNIT_ASSERT_NULL(test, result); - - result = strnchr(empty_string, 1, '\0'); - KUNIT_ASSERT_PTR_EQ(test, result, empty_string); - - result = strnchr(empty_string, 1, 'a'); - KUNIT_ASSERT_NULL(test, result); - - result = strnchr(NULL, 0, '\0'); - KUNIT_ASSERT_NULL(test, result); -} - -static void test_strspn(struct kunit *test) -{ - static const struct strspn_test { - const char str[16]; - const char accept[16]; - const char reject[16]; - unsigned a; - unsigned r; - } tests[] = { - { "foobar", "", "", 0, 6 }, - { "abba", "abc", "ABBA", 4, 4 }, - { "abba", "a", "b", 1, 1 }, - { "", "abc", "abc", 0, 0}, - }; - const struct strspn_test *s = tests; - size_t i; - - for (i = 0; i < ARRAY_SIZE(tests); ++i, ++s) { - KUNIT_ASSERT_EQ_MSG(test, s->a, strspn(s->str, s->accept), - "i:%zu", i); - KUNIT_ASSERT_EQ_MSG(test, s->r, strcspn(s->str, s->reject), - "i:%zu", i); - } -} - -static struct kunit_case string_test_cases[] = { - KUNIT_CASE(test_memset16), - KUNIT_CASE(test_memset32), - KUNIT_CASE(test_memset64), - KUNIT_CASE(test_strchr), - KUNIT_CASE(test_strnchr), - KUNIT_CASE(test_strspn), - {} -}; - -static struct kunit_suite string_test_suite = { - .name = "string", - .test_cases = string_test_cases, -}; - -kunit_test_suites(&string_test_suite); - -MODULE_LICENSE("GPL v2"); |