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linux-torvalds-mirror/lib/kunit/executor_test.c
Linus Torvalds bf4afc53b7 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 
This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 17:09:51 -08:00

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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>
#include <kunit/attributes.h>
static void free_suite_set_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_glob_filter filter = {NULL, NULL};
kunit_parse_glob_filter(&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_glob_filter(&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 kunit_suite_set suite_set = {
.start = subsuite, .end = &subsuite[2],
};
struct kunit_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", NULL, NULL, &err);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
KUNIT_ASSERT_EQ(test, err, 0);
free_suite_set_at_end(test, &got);
/* 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 kunit_suite_set suite_set = {
.start = subsuite, .end = &subsuite[2],
};
struct kunit_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", NULL, NULL, &err);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
KUNIT_ASSERT_EQ(test, err, 0);
free_suite_set_at_end(test, &got);
/* 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 kunit_suite_set suite_set = {
.start = subsuite, .end = &subsuite[2],
};
struct kunit_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", NULL, NULL, &err);
KUNIT_ASSERT_EQ(test, err, 0);
free_suite_set_at_end(test, &got); /* just in case */
KUNIT_EXPECT_PTR_EQ_MSG(test, got.start, got.end,
"should be empty to indicate no match");
}
static void parse_filter_attr_test(struct kunit *test)
{
int j, filter_count;
struct kunit_attr_filter *parsed_filters;
char filters[] = "speed>slow, module!=example", *filter = filters;
int err = 0;
filter_count = kunit_get_filter_count(filters);
KUNIT_EXPECT_EQ(test, filter_count, 2);
parsed_filters = kunit_kcalloc(test, filter_count, sizeof(*parsed_filters),
GFP_KERNEL);
for (j = 0; j < filter_count; j++) {
parsed_filters[j] = kunit_next_attr_filter(&filter, &err);
KUNIT_ASSERT_EQ_MSG(test, err, 0, "failed to parse filter from '%s'", filters);
}
KUNIT_EXPECT_STREQ(test, kunit_attr_filter_name(parsed_filters[0]), "speed");
KUNIT_EXPECT_STREQ(test, parsed_filters[0].input, ">slow");
KUNIT_EXPECT_STREQ(test, kunit_attr_filter_name(parsed_filters[1]), "module");
KUNIT_EXPECT_STREQ(test, parsed_filters[1].input, "!=example");
}
static struct kunit_case dummy_attr_test_cases[] = {
/* .run_case is not important, just needs to be non-NULL */
{ .name = "slow", .run_case = dummy_test, .module_name = "dummy",
.attr.speed = KUNIT_SPEED_SLOW },
{ .name = "normal", .run_case = dummy_test, .module_name = "dummy" },
{},
};
static void filter_attr_test(struct kunit *test)
{
struct kunit_suite *subsuite[3] = {NULL, NULL};
struct kunit_suite_set suite_set = {
.start = subsuite, .end = &subsuite[2],
};
struct kunit_suite_set got;
char filter[] = "speed>slow";
int err = 0;
subsuite[0] = alloc_fake_suite(test, "normal_suite", dummy_attr_test_cases);
subsuite[1] = alloc_fake_suite(test, "slow_suite", dummy_attr_test_cases);
subsuite[1]->attr.speed = KUNIT_SPEED_SLOW; // Set suite attribute
/*
* Want: normal_suite(slow, normal), slow_suite(slow, normal),
* NULL -> normal_suite(normal), NULL
*
* The normal test in slow_suite is filtered out because the speed
* attribute is unset and thus, the filtering is based on the parent attribute
* of slow.
*/
got = kunit_filter_suites(&suite_set, NULL, filter, NULL, &err);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
KUNIT_ASSERT_EQ(test, err, 0);
free_suite_set_at_end(test, &got);
/* Validate we just have normal_suite */
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);
KUNIT_EXPECT_STREQ(test, got.start[0]->name, "normal_suite");
KUNIT_ASSERT_EQ(test, got.end - got.start, 1);
/* Now validate we just have normal test case */
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]->test_cases);
KUNIT_EXPECT_STREQ(test, got.start[0]->test_cases[0].name, "normal");
KUNIT_EXPECT_FALSE(test, got.start[0]->test_cases[1].name);
}
static void filter_attr_empty_test(struct kunit *test)
{
struct kunit_suite *subsuite[3] = {NULL, NULL};
struct kunit_suite_set suite_set = {
.start = subsuite, .end = &subsuite[2],
};
struct kunit_suite_set got;
char filter[] = "module!=dummy";
int err = 0;
subsuite[0] = alloc_fake_suite(test, "suite1", dummy_attr_test_cases);
subsuite[1] = alloc_fake_suite(test, "suite2", dummy_attr_test_cases);
got = kunit_filter_suites(&suite_set, NULL, filter, NULL, &err);
KUNIT_ASSERT_EQ(test, err, 0);
free_suite_set_at_end(test, &got); /* just in case */
KUNIT_EXPECT_PTR_EQ_MSG(test, got.start, got.end,
"should be empty to indicate no match");
}
static void filter_attr_skip_test(struct kunit *test)
{
struct kunit_suite *subsuite[2] = {NULL};
struct kunit_suite_set suite_set = {
.start = subsuite, .end = &subsuite[1],
};
struct kunit_suite_set got;
char filter[] = "speed>slow";
int err = 0;
subsuite[0] = alloc_fake_suite(test, "suite", dummy_attr_test_cases);
/* Want: suite(slow, normal), NULL -> suite(slow with SKIP, normal), NULL */
got = kunit_filter_suites(&suite_set, NULL, filter, "skip", &err);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
KUNIT_ASSERT_EQ(test, err, 0);
free_suite_set_at_end(test, &got);
/* Validate we have both the slow and normal test */
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]->test_cases);
KUNIT_ASSERT_EQ(test, kunit_suite_num_test_cases(got.start[0]), 2);
KUNIT_EXPECT_STREQ(test, got.start[0]->test_cases[0].name, "slow");
KUNIT_EXPECT_STREQ(test, got.start[0]->test_cases[1].name, "normal");
/* Now ensure slow is skipped and normal is not */
KUNIT_EXPECT_EQ(test, got.start[0]->test_cases[0].status, KUNIT_SKIPPED);
KUNIT_EXPECT_FALSE(test, got.start[0]->test_cases[1].status);
}
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),
KUNIT_CASE(parse_filter_attr_test),
KUNIT_CASE(filter_attr_test),
KUNIT_CASE(filter_attr_empty_test),
KUNIT_CASE(filter_attr_skip_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 free_suite_set(void *suite_set)
{
kunit_free_suite_set(*(struct kunit_suite_set *)suite_set);
kfree(suite_set);
}
/* Use the resource API to register a call to free_suite_set.
* Since we never actually use the resource, it's safe to use on const data.
*/
static void free_suite_set_at_end(struct kunit *test, const void *to_free)
{
struct kunit_suite_set *free;
if (!((struct kunit_suite_set *)to_free)->start)
return;
free = kzalloc_obj(struct kunit_suite_set);
*free = *(struct kunit_suite_set *)to_free;
kunit_add_action(test, free_suite_set, (void *)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);
strscpy((char *)suite->name, suite_name, sizeof(suite->name));
suite->test_cases = test_cases;
return suite;
}
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