1 /* SPDX-License-Identifier: GPL-2.0 */
3 * KUnit API allowing dynamic analysis tools to interact with KUnit tests
5 * Copyright (C) 2020, Google LLC.
6 * Author: Uriel Guajardo <urielguajardo@google.com>
9 #ifndef _KUNIT_TEST_BUG_H
10 #define _KUNIT_TEST_BUG_H
12 #if IS_BUILTIN(CONFIG_KUNIT)
14 #include <linux/jump_label.h> /* For static branch */
15 #include <linux/sched.h>
17 /* Static key if KUnit is running any tests. */
18 DECLARE_STATIC_KEY_FALSE(kunit_running);
21 * kunit_get_current_test() - Return a pointer to the currently running
24 * If a KUnit test is running in the current task, returns a pointer to its
25 * associated struct kunit. This pointer can then be passed to any KUnit
26 * function or assertion. If no test is running (or a test is running in a
27 * different task), returns NULL.
29 * This function is safe to call even when KUnit is disabled. If CONFIG_KUNIT
30 * is not enabled, it will compile down to nothing and will return quickly no
33 static inline struct kunit *kunit_get_current_test(void)
35 if (!static_branch_unlikely(&kunit_running))
38 return current->kunit_test;
43 * kunit_fail_current_test() - If a KUnit test is running, fail it.
45 * If a KUnit test is running in the current task, mark that test as failed.
47 * This macro will only work if KUnit is built-in (though the tests
48 * themselves can be modules). Otherwise, it compiles down to nothing.
50 #define kunit_fail_current_test(fmt, ...) do { \
51 if (static_branch_unlikely(&kunit_running)) { \
52 __kunit_fail_current_test(__FILE__, __LINE__, \
53 fmt, ##__VA_ARGS__); \
58 extern __printf(3, 4) void __kunit_fail_current_test(const char *file, int line,
59 const char *fmt, ...);
63 static inline struct kunit *kunit_get_current_test(void) { return NULL; }
65 /* We define this with an empty helper function so format string warnings work */
66 #define kunit_fail_current_test(fmt, ...) \
67 __kunit_fail_current_test(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
69 static inline __printf(3, 4) void __kunit_fail_current_test(const char *file, int line,
76 #endif /* _KUNIT_TEST_BUG_H */