lib/tests/glob_kunit.c

Source file repositories/reference/linux-study-clean/lib/tests/glob_kunit.c

File Facts

System
Linux kernel
Corpus path
lib/tests/glob_kunit.c
Extension
.c
Size
5044 bytes
Lines
126
Domain
Kernel Services
Bucket
lib
Inferred role
Kernel Services: implementation source
Status
source implementation candidate

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

Dependency Surface

Detected Declarations

Annotated Snippet

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;

Annotation

Implementation Notes