diff options
| -rw-r--r-- | include/kunit/test-bug.h | 29 | ||||
| -rw-r--r-- | lib/kunit/test.c | 39 |
2 files changed, 64 insertions, 4 deletions
diff --git a/include/kunit/test-bug.h b/include/kunit/test-bug.h new file mode 100644 index 000000000000..ce6f6edc7801 --- /dev/null +++ b/include/kunit/test-bug.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * KUnit API allowing dynamic analysis tools to interact with KUnit tests + * + * Copyright (C) 2020, Google LLC. + * Author: Uriel Guajardo <urielguajardo@google.com> + */ + +#ifndef _KUNIT_TEST_BUG_H +#define _KUNIT_TEST_BUG_H + +#define kunit_fail_current_test(fmt, ...) \ + __kunit_fail_current_test(__FILE__, __LINE__, fmt, ##__VA_ARGS__) + +#if IS_BUILTIN(CONFIG_KUNIT) + +extern __printf(3, 4) void __kunit_fail_current_test(const char *file, int line, + const char *fmt, ...); + +#else + +static __printf(3, 4) void __kunit_fail_current_test(const char *file, int line, + const char *fmt, ...) +{ +} + +#endif + +#endif /* _KUNIT_TEST_BUG_H */ diff --git a/lib/kunit/test.c b/lib/kunit/test.c index ec9494e914ef..2f6cc0123232 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -7,6 +7,7 @@ */ #include <kunit/test.h> +#include <kunit/test-bug.h> #include <linux/kernel.h> #include <linux/kref.h> #include <linux/sched/debug.h> @@ -16,6 +17,40 @@ #include "string-stream.h" #include "try-catch-impl.h" +#if IS_BUILTIN(CONFIG_KUNIT) +/* + * Fail the current test and print an error message to the log. + */ +void __kunit_fail_current_test(const char *file, int line, const char *fmt, ...) +{ + va_list args; + int len; + char *buffer; + + if (!current->kunit_test) + return; + + kunit_set_failure(current->kunit_test); + + /* kunit_err() only accepts literals, so evaluate the args first. */ + va_start(args, fmt); + len = vsnprintf(NULL, 0, fmt, args) + 1; + va_end(args); + + buffer = kunit_kmalloc(current->kunit_test, len, GFP_KERNEL); + if (!buffer) + return; + + va_start(args, fmt); + vsnprintf(buffer, len, fmt, args); + va_end(args); + + kunit_err(current->kunit_test, "%s:%d: %s", file, line, buffer); + kunit_kfree(current->kunit_test, buffer); +} +EXPORT_SYMBOL_GPL(__kunit_fail_current_test); +#endif + /* * Append formatted message to log, size of which is limited to * KUNIT_LOG_SIZE bytes (including null terminating byte). @@ -273,9 +308,7 @@ static void kunit_try_run_case(void *data) struct kunit_suite *suite = ctx->suite; struct kunit_case *test_case = ctx->test_case; -#if (IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT)) current->kunit_test = test; -#endif /* IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT) */ /* * kunit_run_case_internal may encounter a fatal error; if it does, @@ -624,9 +657,7 @@ void kunit_cleanup(struct kunit *test) spin_unlock(&test->lock); kunit_remove_resource(test, res); } -#if (IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT)) current->kunit_test = NULL; -#endif /* IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT)*/ } EXPORT_SYMBOL_GPL(kunit_cleanup); |