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RIOT/sys/include/test_utils/expect.h
2023-01-18 01:17:31 +01:00

88 lines
2.5 KiB
C

/*
* Copyright (C) 2020 Kaspar Schleiser <kaspar@schleiser.de>
* Copyright (C) 2015 INRIA
* Copyright (C) 2016 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup test_utils_expect expect() utility function
* @ingroup sys
*
* @{
* @file
* @brief test "expect condition" utility function
*
* @author Oliver Hahm <oliver.hahm@inria.fr>
* @author René Kijewski <rene.kijewski@fu-berlin.de>
* @author Martine Lenders <m.lenders@fu-berlin.de>
* @author Kaspar Schleiser <kaspar@schleiser.de>
*/
#ifndef TEST_UTILS_EXPECT_H
#define TEST_UTILS_EXPECT_H
#include <stdio.h>
#include "compiler_hints.h"
#include "panic.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Function to handle failed expectation
*
* @note This function was introduced for memory size optimization
*
* @warning this function **NEVER** returns!
*
* @param[in] file The file name of the file the expectation failed in
* @param[in] line The code line of @p file the expectation failed in
*/
NORETURN static inline void _expect_failure(const char *file, unsigned line)
{
printf("%s:%u => failed condition\n", file, line);
core_panic(PANIC_EXPECT_FAIL, "CONDITION FAILED.");
}
/**
* @brief abort the program if condition is false
*
* This is similar to assert(), but will not be excluded from a build even if
* NDEBUG is set. Use e.g., in test application to "assert" conditions, in
* order to prevent a different compilation mode (a release build?) from making
* the test non-functional.
*
* Otherwise, the macro expect() prints an error message to standard error and
* terminates the application by calling core_panic().
*
* The purpose of this macro is to help programmers find bugs in their
* programs.
*
* A failed condition generates output similar to:
*
* 0x89abcdef
* *** RIOT kernel panic:
* FAILED CONDITION.
*
* ...
*
* Where 0x89abcdef is an address. This address can be used with tools like
* `addr2line` (or e.g. `arm-none-eabi-addr2line` for ARM-based code), `objdump`,
* or `gdb` (with the command `info line *(0x89abcdef)`) to identify the line
* the condition failed in.
*
*/
#define expect(cond) (likely(cond) ? (void)0 : _expect_failure(__FILE__, __LINE__))
#ifdef __cplusplus
}
#endif
#endif /* TEST_UTILS_EXPECT_H */
/** @} */