tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */
16struct glob_test_case {
17 const char *pat;
18 const char *str;
19 bool expected;
20};
21
22static 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
95static 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
100KUNIT_ARRAY_PARAM(glob, glob_test_cases, glob_case_to_desc);
101
102static 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
113static struct kunit_case glob_kunit_test_cases[] = {
114 KUNIT_CASE_PARAM(glob_test_match, glob_gen_params),
115 {}
116};
117
118static struct kunit_suite glob_test_suite = {
119 .name = "glob",
120 .test_cases = glob_kunit_test_cases,
121};
122
123kunit_test_suite(glob_test_suite);
124MODULE_DESCRIPTION("Test cases for glob functions");
125MODULE_LICENSE("Dual MIT/GPL");