1 // SPDX-License-Identifier: GPL-2.0
3 * KUnit test for the KUnit executor.
5 * Copyright (C) 2021, Google LLC.
6 * Author: Daniel Latypov <dlatypov@google.com>
9 #include <kunit/test.h>
11 static void kfree_at_end(struct kunit *test, const void *to_free);
12 static struct kunit_suite *alloc_fake_suite(struct kunit *test,
13 const char *suite_name);
15 static void filter_subsuite_test(struct kunit *test)
17 struct kunit_suite *subsuite[3] = {NULL, NULL, NULL};
18 struct kunit_suite * const *filtered;
20 subsuite[0] = alloc_fake_suite(test, "suite1");
21 subsuite[1] = alloc_fake_suite(test, "suite2");
23 /* Want: suite1, suite2, NULL -> suite2, NULL */
24 filtered = kunit_filter_subsuite(subsuite, "suite2*");
25 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered);
26 kfree_at_end(test, filtered);
28 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]);
29 KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2");
31 KUNIT_EXPECT_FALSE(test, filtered[1]);
34 static void filter_subsuite_to_empty_test(struct kunit *test)
36 struct kunit_suite *subsuite[3] = {NULL, NULL, NULL};
37 struct kunit_suite * const *filtered;
39 subsuite[0] = alloc_fake_suite(test, "suite1");
40 subsuite[1] = alloc_fake_suite(test, "suite2");
42 filtered = kunit_filter_subsuite(subsuite, "not_found");
43 kfree_at_end(test, filtered); /* just in case */
45 KUNIT_EXPECT_FALSE_MSG(test, filtered,
46 "should be NULL to indicate no match");
49 static void kfree_subsuites_at_end(struct kunit *test, struct suite_set *suite_set)
51 struct kunit_suite * const * const *suites;
53 kfree_at_end(test, suite_set->start);
54 for (suites = suite_set->start; suites < suite_set->end; suites++)
55 kfree_at_end(test, *suites);
58 static void filter_suites_test(struct kunit *test)
60 /* Suites per-file are stored as a NULL terminated array */
61 struct kunit_suite *subsuites[2][2] = {
65 /* Match the memory layout of suite_set */
66 struct kunit_suite * const * const suites[2] = {
67 subsuites[0], subsuites[1],
70 const struct suite_set suite_set = {
74 struct suite_set filtered = {.start = NULL, .end = NULL};
76 /* Emulate two files, each having one suite */
77 subsuites[0][0] = alloc_fake_suite(test, "suite0");
78 subsuites[1][0] = alloc_fake_suite(test, "suite1");
80 /* Filter out suite1 */
81 filtered = kunit_filter_suites(&suite_set, "suite0");
82 kfree_subsuites_at_end(test, &filtered); /* let us use ASSERTs without leaking */
83 KUNIT_ASSERT_EQ(test, filtered.end - filtered.start, (ptrdiff_t)1);
85 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered.start);
86 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered.start[0]);
87 KUNIT_EXPECT_STREQ(test, (const char *)filtered.start[0][0]->name, "suite0");
90 static struct kunit_case executor_test_cases[] = {
91 KUNIT_CASE(filter_subsuite_test),
92 KUNIT_CASE(filter_subsuite_to_empty_test),
93 KUNIT_CASE(filter_suites_test),
97 static struct kunit_suite executor_test_suite = {
98 .name = "kunit_executor_test",
99 .test_cases = executor_test_cases,
102 kunit_test_suites(&executor_test_suite);
106 static void kfree_res_free(struct kunit_resource *res)
111 /* Use the resource API to register a call to kfree(to_free).
112 * Since we never actually use the resource, it's safe to use on const data.
114 static void kfree_at_end(struct kunit *test, const void *to_free)
116 /* kfree() handles NULL already, but avoid allocating a no-op cleanup. */
117 if (IS_ERR_OR_NULL(to_free))
119 kunit_alloc_and_get_resource(test, NULL, kfree_res_free, GFP_KERNEL,
123 static struct kunit_suite *alloc_fake_suite(struct kunit *test,
124 const char *suite_name)
126 struct kunit_suite *suite;
128 /* We normally never expect to allocate suites, hence the non-const cast. */
129 suite = kunit_kzalloc(test, sizeof(*suite), GFP_KERNEL);
130 strncpy((char *)suite->name, suite_name, sizeof(suite->name) - 1);