// SPDX-License-Identifier: MIT OR GPL-2.0/* * Test cases for glob functions. */ #include <kunit/test.h>#include <linux/glob.h>#include <linux/module.h> /** * struct glob_test_case - Test case for glob matching. * @pat: Pattern to match. * @str: String to match against. * @expected: Expected glob_match result, true if matched. */struct glob_test_case {	const char *pat;	const char *str;	bool expected;}; static const struct glob_test_case glob_test_cases[] = {	/* Some basic tests */	{ .pat = "a", .str = "a", .expected = true },	{ .pat = "a", .str = "b", .expected = false },	{ .pat = "a", .str = "aa", .expected = false },	{ .pat = "a", .str = "", .expected = false },	{ .pat = "", .str = "", .expected = true },	{ .pat = "", .str = "a", .expected = false },	/* Simple character class tests */	{ .pat = "[a]", .str = "a", .expected = true },	{ .pat = "[a]", .str = "b", .expected = false },	{ .pat = "[!a]", .str = "a", .expected = false },	{ .pat = "[!a]", .str = "b", .expected = true },	{ .pat = "[ab]", .str = "a", .expected = true },	{ .pat = "[ab]", .str = "b", .expected = true },	{ .pat = "[ab]", .str = "c", .expected = false },	{ .pat = "[!ab]", .str = "c", .expected = true },	{ .pat = "[a-c]", .str = "b", .expected = true },	{ .pat = "[a-c]", .str = "d", .expected = false },	/* Corner cases in character class parsing */	{ .pat = "[a-c-e-g]", .str = "-", .expected = true },	{ .pat = "[a-c-e-g]", .str = "d", .expected = false },	{ .pat = "[a-c-e-g]", .str = "f", .expected = true },	{ .pat = "[]a-ceg-ik[]", .str = "a", .expected = true },	{ .pat = "[]a-ceg-ik[]", .str = "]", .expected = true },	{ .pat = "[]a-ceg-ik[]", .str = "[", .expected = true },	{ .pat = "[]a-ceg-ik[]", .str = "h", .expected = true },	{ .pat = "[]a-ceg-ik[]", .str = "f", .expected = false },	{ .pat = "[!]a-ceg-ik[]", .str = "h", .expected = false },	{ .pat = "[!]a-ceg-ik[]", .str = "]", .expected = false },	{ .pat = "[!]a-ceg-ik[]", .str = "f", .expected = true },	/* Simple wild cards */	{ .pat = "?", .str = "a", .expected = true },	{ .pat = "?", .str = "aa", .expected = false },	{ .pat = "??", .str = "a", .expected = false },	{ .pat = "?x?", .str = "axb", .expected = true },	{ .pat = "?x?", .str = "abx", .expected = false },	{ .pat = "?x?", .str = "xab", .expected = false },	/* Asterisk wild cards (backtracking) */	{ .pat = "*??", .str = "a", .expected = false },	{ .pat = "*??", .str = "ab", .expected = true },	{ .pat = "*??", .str = "abc", .expected = true },	{ .pat = "*??", .str = "abcd", .expected = true },	{ .pat = "??*", .str = "a", .expected = false },	{ .pat = "??*", .str = "ab", .expected = true },	{ .pat = "??*", .str = "abc", .expected = true },	{ .pat = "??*", .str = "abcd", .expected = true },	{ .pat = "?*?", .str = "a", .expected = false },	{ .pat = "?*?", .str = "ab", .expected = true },	{ .pat = "?*?", .str = "abc", .expected = true },	{ .pat = "?*?", .str = "abcd", .expected = true },	{ .pat = "*b", .str = "b", .expected = true },	{ .pat = "*b", .str = "ab", .expected = true },	{ .pat = "*b", .str = "ba", .expected = false },	{ .pat = "*b", .str = "bb", .expected = true },	{ .pat = "*b", .str = "abb", .expected = true },	{ .pat = "*b", .str = "bab", .expected = true },	{ .pat = "*bc", .str = "abbc", .expected = true },	{ .pat = "*bc", .str = "bc", .expected = true },	{ .pat = "*bc", .str = "bbc", .expected = true },	{ .pat = "*bc", .str = "bcbc", .expected = true },	/* Multiple asterisks (complex backtracking) */	{ .pat = "*ac*", .str = "abacadaeafag", .expected = true },	{ .pat = "*ac*ae*ag*", .str = "abacadaeafag", .expected = true },	{ .pat = "*a*b*[bc]*[ef]*g*", .str = "abacadaeafag", .expected = true },	{ .pat = "*a*b*[ef]*[cd]*g*", .str = "abacadaeafag", .expected = false },	{ .pat = "*abcd*", .str = "abcabcabcabcdefg", .expected = true },	{ .pat = "*ab*cd*", .str = "abcabcabcabcdefg", .expected = true },	{ .pat = "*abcd*abcdef*", .str = "abcabcdabcdeabcdefg", .expected = true },	{ .pat = "*abcd*", .str = "abcabcabcabcefg", .expected = false },	{ .pat = "*ab*cd*", .str = "abcabcabcabcefg", .expected = false },}; static void glob_case_to_desc(const struct glob_test_case *t, char *desc){	snprintf(desc, KUNIT_PARAM_DESC_SIZE, "pat:\"%s\" str:\"%s\"", t->pat, t->str);} KUNIT_ARRAY_PARAM(glob, glob_test_cases, glob_case_to_desc); static void glob_test_match(struct kunit *test){	const struct glob_test_case *params = test->param_value; 	KUNIT_EXPECT_EQ_MSG(test,			    glob_match(params->pat, params->str),			    params->expected,			    "Pattern: \"%s\", String: \"%s\", Expected: %d",			    params->pat, params->str, params->expected);} static struct kunit_case glob_kunit_test_cases[] = {	KUNIT_CASE_PARAM(glob_test_match, glob_gen_params),	{}}; static struct kunit_suite glob_test_suite = {	.name = "glob",	.test_cases = glob_kunit_test_cases,}; kunit_test_suite(glob_test_suite);MODULE_DESCRIPTION("Test cases for glob functions");MODULE_LICENSE("Dual MIT/GPL");