linux/include/kunit/test-bug.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * KUnit API providing hooks for non-test code to interact with tests.
 *
 * Copyright (C) 2020, Google LLC.
 * Author: Uriel Guajardo <[email protected]>
 */

#ifndef _KUNIT_TEST_BUG_H
#define _KUNIT_TEST_BUG_H

#include <linux/stddef.h> /* for NULL */

#if IS_ENABLED(CONFIG_KUNIT)

#include <linux/jump_label.h> /* For static branch */
#include <linux/sched.h>

/* Static key if KUnit is running any tests. */
DECLARE_STATIC_KEY_FALSE(kunit_running);

/* Hooks table: a table of function pointers filled in when kunit loads */
extern struct kunit_hooks_table { … } kunit_hooks;

/**
 * kunit_get_current_test() - Return a pointer to the currently running
 *			      KUnit test.
 *
 * If a KUnit test is running in the current task, returns a pointer to its
 * associated struct kunit. This pointer can then be passed to any KUnit
 * function or assertion. If no test is running (or a test is running in a
 * different task), returns NULL.
 *
 * This function is safe to call even when KUnit is disabled. If CONFIG_KUNIT
 * is not enabled, it will compile down to nothing and will return quickly no
 * test is running.
 */
static inline struct kunit *kunit_get_current_test(void)
{ … }


/**
 * kunit_fail_current_test() - If a KUnit test is running, fail it.
 *
 * If a KUnit test is running in the current task, mark that test as failed.
 */
#define kunit_fail_current_test(fmt, ...) …

#else

static inline struct kunit *kunit_get_current_test(void) { return NULL; }

#define kunit_fail_current_test …

#endif

#endif /* _KUNIT_TEST_BUG_H */