// SPDX-License-Identifier: GPL-2.0/* * KUnit test for the KUnit executor. * * Copyright (C) 2021, Google LLC. * Author: Daniel Latypov <dlatypov@google.com> */ #include <kunit/test.h> static void kfree_at_end(struct kunit *test, const void *to_free);static struct kunit_suite *alloc_fake_suite(struct kunit *test,					    const char *suite_name,					    struct kunit_case *test_cases); static void dummy_test(struct kunit *test) {} static struct kunit_case dummy_test_cases[] = {	/* .run_case is not important, just needs to be non-NULL */	{ .name = "test1", .run_case = dummy_test },	{ .name = "test2", .run_case = dummy_test },	{},}; static void parse_filter_test(struct kunit *test){	struct kunit_test_filter filter = {NULL, NULL}; 	kunit_parse_filter_glob(&filter, "suite");	KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite");	KUNIT_EXPECT_FALSE(test, filter.test_glob);	kfree(filter.suite_glob);	kfree(filter.test_glob); 	kunit_parse_filter_glob(&filter, "suite.test");	KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite");	KUNIT_EXPECT_STREQ(test, filter.test_glob, "test");	kfree(filter.suite_glob);	kfree(filter.test_glob);} static void filter_suites_test(struct kunit *test){	struct kunit_suite *subsuite[3] = {NULL, NULL};	struct suite_set suite_set = {.start = subsuite, .end = &subsuite[2]};	struct suite_set got;	int err = 0; 	subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases);	subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); 	/* Want: suite1, suite2, NULL -> suite2, NULL */	got = kunit_filter_suites(&suite_set, "suite2", &err);	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);	KUNIT_ASSERT_EQ(test, err, 0);	kfree_at_end(test, got.start); 	/* Validate we just have suite2 */	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);	KUNIT_EXPECT_STREQ(test, (const char *)got.start[0]->name, "suite2"); 	/* Contains one element (end is 1 past end) */	KUNIT_ASSERT_EQ(test, got.end - got.start, 1);} static void filter_suites_test_glob_test(struct kunit *test){	struct kunit_suite *subsuite[3] = {NULL, NULL};	struct suite_set suite_set = {.start = subsuite, .end = &subsuite[2]};	struct suite_set got;	int err = 0; 	subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases);	subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); 	/* Want: suite1, suite2, NULL -> suite2 (just test1), NULL */	got = kunit_filter_suites(&suite_set, "suite2.test2", &err);	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);	KUNIT_ASSERT_EQ(test, err, 0);	kfree_at_end(test, got.start); 	/* Validate we just have suite2 */	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);	KUNIT_EXPECT_STREQ(test, (const char *)got.start[0]->name, "suite2");	KUNIT_ASSERT_EQ(test, got.end - got.start, 1); 	/* Now validate we just have test2 */	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]->test_cases);	KUNIT_EXPECT_STREQ(test, (const char *)got.start[0]->test_cases[0].name, "test2");	KUNIT_EXPECT_FALSE(test, got.start[0]->test_cases[1].name);} static void filter_suites_to_empty_test(struct kunit *test){	struct kunit_suite *subsuite[3] = {NULL, NULL};	struct suite_set suite_set = {.start = subsuite, .end = &subsuite[2]};	struct suite_set got;	int err = 0; 	subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases);	subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); 	got = kunit_filter_suites(&suite_set, "not_found", &err);	KUNIT_ASSERT_EQ(test, err, 0);	kfree_at_end(test, got.start); /* just in case */ 	KUNIT_EXPECT_PTR_EQ_MSG(test, got.start, got.end,				"should be empty to indicate no match");} static struct kunit_case executor_test_cases[] = {	KUNIT_CASE(parse_filter_test),	KUNIT_CASE(filter_suites_test),	KUNIT_CASE(filter_suites_test_glob_test),	KUNIT_CASE(filter_suites_to_empty_test),	{}}; static struct kunit_suite executor_test_suite = {	.name = "kunit_executor_test",	.test_cases = executor_test_cases,}; kunit_test_suites(&executor_test_suite); /* Test helpers */ /* Use the resource API to register a call to kfree(to_free). * Since we never actually use the resource, it's safe to use on const data. */static void kfree_at_end(struct kunit *test, const void *to_free){	/* kfree() handles NULL already, but avoid allocating a no-op cleanup. */	if (IS_ERR_OR_NULL(to_free))		return; 	kunit_add_action(test,			(kunit_action_t *)kfree,			(void *)to_free);} static struct kunit_suite *alloc_fake_suite(struct kunit *test,					    const char *suite_name,					    struct kunit_case *test_cases){	struct kunit_suite *suite; 	/* We normally never expect to allocate suites, hence the non-const cast. */	suite = kunit_kzalloc(test, sizeof(*suite), GFP_KERNEL);	strncpy((char *)suite->name, suite_name, sizeof(suite->name) - 1);	suite->test_cases = test_cases; 	return suite;}