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// 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);
static void filter_subsuite_test(struct kunit *test)
{
struct kunit_suite *subsuite[3] = {NULL, NULL, NULL};
struct kunit_suite * const *filtered;
subsuite[0] = alloc_fake_suite(test, "suite1");
subsuite[1] = alloc_fake_suite(test, "suite2");
/* Want: suite1, suite2, NULL -> suite2, NULL */
filtered = kunit_filter_subsuite(subsuite, "suite2*");
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered);
kfree_at_end(test, filtered);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]);
KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2");
KUNIT_EXPECT_FALSE(test, filtered[1]);
}
static void filter_subsuite_to_empty_test(struct kunit *test)
{
struct kunit_suite *subsuite[3] = {NULL, NULL, NULL};
struct kunit_suite * const *filtered;
subsuite[0] = alloc_fake_suite(test, "suite1");
subsuite[1] = alloc_fake_suite(test, "suite2");
filtered = kunit_filter_subsuite(subsuite, "not_found");
kfree_at_end(test, filtered); /* just in case */
KUNIT_EXPECT_FALSE_MSG(test, filtered,
"should be NULL to indicate no match");
}
static void kfree_subsuites_at_end(struct kunit *test, struct suite_set *suite_set)
{
struct kunit_suite * const * const *suites;
kfree_at_end(test, suite_set->start);
for (suites = suite_set->start; suites < suite_set->end; suites++)
kfree_at_end(test, *suites);
}
static void filter_suites_test(struct kunit *test)
{
/* Suites per-file are stored as a NULL terminated array */
struct kunit_suite *subsuites[2][2] = {
{NULL, NULL},
{NULL, NULL},
};
/* Match the memory layout of suite_set */
struct kunit_suite * const * const suites[2] = {
subsuites[0], subsuites[1],
};
const struct suite_set suite_set = {
.start = suites,
.end = suites + 2,
};
struct suite_set filtered = {.start = NULL, .end = NULL};
/* Emulate two files, each having one suite */
subsuites[0][0] = alloc_fake_suite(test, "suite0");
subsuites[1][0] = alloc_fake_suite(test, "suite1");
/* Filter out suite1 */
filtered = kunit_filter_suites(&suite_set, "suite0");
kfree_subsuites_at_end(test, &filtered); /* let us use ASSERTs without leaking */
KUNIT_ASSERT_EQ(test, filtered.end - filtered.start, (ptrdiff_t)1);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered.start);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered.start[0]);
KUNIT_EXPECT_STREQ(test, (const char *)filtered.start[0][0]->name, "suite0");
}
static struct kunit_case executor_test_cases[] = {
KUNIT_CASE(filter_subsuite_test),
KUNIT_CASE(filter_subsuite_to_empty_test),
KUNIT_CASE(filter_suites_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 */
static void kfree_res_free(struct kunit_resource *res)
{
kfree(res->data);
}
/* 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_alloc_resource(test, NULL, kfree_res_free, GFP_KERNEL,
(void *)to_free);
}
static struct kunit_suite *alloc_fake_suite(struct kunit *test,
const char *suite_name)
{
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);
return suite;
}
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