1 // SPDX-License-Identifier: MIT OR GPL-2.0 2 /* 3 * Test cases for glob functions. 4 */ 5 6 #include <kunit/test.h> 7 #include <linux/glob.h> 8 #include <linux/module.h> 9 10 /** 11 * struct glob_test_case - Test case for glob matching. 12 * @pat: Pattern to match. 13 * @str: String to match against. 14 * @expected: Expected glob_match result, true if matched. 15 */ 16 struct glob_test_case { 17 const char *pat; 18 const char *str; 19 bool expected; 20 }; 21 22 static const struct glob_test_case glob_test_cases[] = { 23 /* Some basic tests */ 24 { .pat = "a", .str = "a", .expected = true }, 25 { .pat = "a", .str = "b", .expected = false }, 26 { .pat = "a", .str = "aa", .expected = false }, 27 { .pat = "a", .str = "", .expected = false }, 28 { .pat = "", .str = "", .expected = true }, 29 { .pat = "", .str = "a", .expected = false }, 30 /* Simple character class tests */ 31 { .pat = "[a]", .str = "a", .expected = true }, 32 { .pat = "[a]", .str = "b", .expected = false }, 33 { .pat = "[!a]", .str = "a", .expected = false }, 34 { .pat = "[!a]", .str = "b", .expected = true }, 35 { .pat = "[ab]", .str = "a", .expected = true }, 36 { .pat = "[ab]", .str = "b", .expected = true }, 37 { .pat = "[ab]", .str = "c", .expected = false }, 38 { .pat = "[!ab]", .str = "c", .expected = true }, 39 { .pat = "[a-c]", .str = "b", .expected = true }, 40 { .pat = "[a-c]", .str = "d", .expected = false }, 41 /* Corner cases in character class parsing */ 42 { .pat = "[a-c-e-g]", .str = "-", .expected = true }, 43 { .pat = "[a-c-e-g]", .str = "d", .expected = false }, 44 { .pat = "[a-c-e-g]", .str = "f", .expected = true }, 45 { .pat = "[]a-ceg-ik[]", .str = "a", .expected = true }, 46 { .pat = "[]a-ceg-ik[]", .str = "]", .expected = true }, 47 { .pat = "[]a-ceg-ik[]", .str = "[", .expected = true }, 48 { .pat = "[]a-ceg-ik[]", .str = "h", .expected = true }, 49 { .pat = "[]a-ceg-ik[]", .str = "f", .expected = false }, 50 { .pat = "[!]a-ceg-ik[]", .str = "h", .expected = false }, 51 { .pat = "[!]a-ceg-ik[]", .str = "]", .expected = false }, 52 { .pat = "[!]a-ceg-ik[]", .str = "f", .expected = true }, 53 /* Simple wild cards */ 54 { .pat = "?", .str = "a", .expected = true }, 55 { .pat = "?", .str = "aa", .expected = false }, 56 { .pat = "??", .str = "a", .expected = false }, 57 { .pat = "?x?", .str = "axb", .expected = true }, 58 { .pat = "?x?", .str = "abx", .expected = false }, 59 { .pat = "?x?", .str = "xab", .expected = false }, 60 /* Asterisk wild cards (backtracking) */ 61 { .pat = "*??", .str = "a", .expected = false }, 62 { .pat = "*??", .str = "ab", .expected = true }, 63 { .pat = "*??", .str = "abc", .expected = true }, 64 { .pat = "*??", .str = "abcd", .expected = true }, 65 { .pat = "??*", .str = "a", .expected = false }, 66 { .pat = "??*", .str = "ab", .expected = true }, 67 { .pat = "??*", .str = "abc", .expected = true }, 68 { .pat = "??*", .str = "abcd", .expected = true }, 69 { .pat = "?*?", .str = "a", .expected = false }, 70 { .pat = "?*?", .str = "ab", .expected = true }, 71 { .pat = "?*?", .str = "abc", .expected = true }, 72 { .pat = "?*?", .str = "abcd", .expected = true }, 73 { .pat = "*b", .str = "b", .expected = true }, 74 { .pat = "*b", .str = "ab", .expected = true }, 75 { .pat = "*b", .str = "ba", .expected = false }, 76 { .pat = "*b", .str = "bb", .expected = true }, 77 { .pat = "*b", .str = "abb", .expected = true }, 78 { .pat = "*b", .str = "bab", .expected = true }, 79 { .pat = "*bc", .str = "abbc", .expected = true }, 80 { .pat = "*bc", .str = "bc", .expected = true }, 81 { .pat = "*bc", .str = "bbc", .expected = true }, 82 { .pat = "*bc", .str = "bcbc", .expected = true }, 83 /* Multiple asterisks (complex backtracking) */ 84 { .pat = "*ac*", .str = "abacadaeafag", .expected = true }, 85 { .pat = "*ac*ae*ag*", .str = "abacadaeafag", .expected = true }, 86 { .pat = "*a*b*[bc]*[ef]*g*", .str = "abacadaeafag", .expected = true }, 87 { .pat = "*a*b*[ef]*[cd]*g*", .str = "abacadaeafag", .expected = false }, 88 { .pat = "*abcd*", .str = "abcabcabcabcdefg", .expected = true }, 89 { .pat = "*ab*cd*", .str = "abcabcabcabcdefg", .expected = true }, 90 { .pat = "*abcd*abcdef*", .str = "abcabcdabcdeabcdefg", .expected = true }, 91 { .pat = "*abcd*", .str = "abcabcabcabcefg", .expected = false }, 92 { .pat = "*ab*cd*", .str = "abcabcabcabcefg", .expected = false }, 93 }; 94 95 static void glob_case_to_desc(const struct glob_test_case *t, char *desc) 96 { 97 snprintf(desc, KUNIT_PARAM_DESC_SIZE, "pat:\"%s\" str:\"%s\"", t->pat, t->str); 98 } 99 100 KUNIT_ARRAY_PARAM(glob, glob_test_cases, glob_case_to_desc); 101 102 static void glob_test_match(struct kunit *test) 103 { 104 const struct glob_test_case *params = test->param_value; 105 106 KUNIT_EXPECT_EQ_MSG(test, 107 glob_match(params->pat, params->str), 108 params->expected, 109 "Pattern: \"%s\", String: \"%s\", Expected: %d", 110 params->pat, params->str, params->expected); 111 } 112 113 static struct kunit_case glob_kunit_test_cases[] = { 114 KUNIT_CASE_PARAM(glob_test_match, glob_gen_params), 115 {} 116 }; 117 118 static struct kunit_suite glob_test_suite = { 119 .name = "glob", 120 .test_cases = glob_kunit_test_cases, 121 }; 122 123 kunit_test_suite(glob_test_suite); 124 MODULE_DESCRIPTION("Test cases for glob functions"); 125 MODULE_LICENSE("Dual MIT/GPL"); 126