osd-contiki/apps/unit-test/unit-test.h

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/*
* Copyright (c) 2010, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/**
* \file
* A tool for unit testing Contiki software.
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#ifndef UNIT_TEST_H
#define UNIT_TEST_H
#include "sys/rtimer.h"
typedef enum unit_test_result {
unit_test_failure = 0,
unit_test_success = 1
} unit_test_result_t;
/**
* The unit_test structure describes the results of a unit test. Each
* registered unit test statically allocates an object of this type.
*/
typedef struct unit_test {
const char * const descr;
const char * const test_file;
unit_test_result_t result;
unsigned exit_line;
rtimer_clock_t start;
rtimer_clock_t end;
} unit_test_t;
/**
* Register a unit test.
*
* This macro allocates unit test descriptor, which is a structure of
* type unit_test_t. The descriptor contains information about a unit
* test, and the results from the last execution of the test.
*
* \param name The name of the unit test.
* \param descr A string that briefly describes the unit test.
*/
#define UNIT_TEST_REGISTER(name, descr) static unit_test_t unit_test_##name = {descr, __FILE__, unit_test_success, 0, 0, 0}
/**
* Define a unit test.
*
* This macro defines the function that will be executed when conducting
* a unit test. The name that is passed as a parameter must have been
* registered with the UNIT_TEST_REGISTER() macro.
*
* The function defined by this macro must start with a call to the
* UNIT_TEST_BEGIN() macro, and end with a call to the UNIT_TEST_END()
* macro.
*
* The standard test function template produced by this macro will
* ensure that the unit test keeps track of the result, the time taken to
* execute (in rtimer ticks), and the exit point of the test. The
* latter corresponds to the line number at which the test was
* determined to be a success or failure.
*
* \param name The name of the unit test.
*/
#define UNIT_TEST(name) unit_test_result_t unit_test_function_##name(unit_test_t *utp)
/**
* Mark the starting point of the unit test function.
*/
#define UNIT_TEST_BEGIN() do { \
utp->start = RTIMER_NOW(); \
utp->result = unit_test_success; \
} while(0)
/**
* Mark the ending point of the unit test function.
*/
#define UNIT_TEST_END() UNIT_TEST_SUCCEED(); \
unit_test_end: \
utp->end = RTIMER_NOW(); \
return utp->result;
/*
* The test result is printed with a function that is selected by
* defining UNIT_TEST_PRINT_FUNCTION, which must be of the type
* "void (*)(const unit_test_t *)". The default selection is
* unit_test_print_report, which is available in unit-test.c.
*/
#ifndef UNIT_TEST_PRINT_FUNCTION
#define UNIT_TEST_PRINT_FUNCTION unit_test_print_report
#endif /* !UNIT_TEST_PRINT_FUNCTION */
/**
* Print a report of the execution of a unit test.
*
* \param name The name of the unit test.
*/
#define UNIT_TEST_PRINT_REPORT(name) UNIT_TEST_PRINT_FUNCTION(&unit_test_##name)
/**
* Execute a unit test and print a report on the results.
*
* \param name The name of the unit test.
*/
#define UNIT_TEST_RUN(name) do { \
unit_test_function_##name(&unit_test_##name); \
UNIT_TEST_PRINT_REPORT(name); \
} while(0)
/**
* Report that a unit test succeeded.
*
* This macro is useful for writing tests that can succeed earlier than
* the last execution point of the test, which is specified by a call to
* the UNIT_TEST_END() macro.
*
* Tests can usually be written without calls to UNIT_TEST_SUCCEED(),
* since it is implicitly called at the end of the test---unless
* UNIT_TEST_FAIL() has been called.
*
*/
#define UNIT_TEST_SUCCEED() do { \
utp->exit_line = __LINE__; \
goto unit_test_end; \
} while(0)
/**
* Report that a unit test failed.
*
* This macro is used to signal that a unit test failed to execute. The
* line number at which this macro was called is stored in the unit test
* descriptor.
*/
#define UNIT_TEST_FAIL() do { \
utp->exit_line = __LINE__; \
utp->result = unit_test_failure; \
goto unit_test_end; \
} while(0)
/**
* Report failure if an expression is false.
*
* \param expr The expression to evaluate.
*/
#define UNIT_TEST_ASSERT(expr) do { \
if(!(expr)) { \
UNIT_TEST_FAIL(); \
} \
} while(0)
/* The default print function. */
void unit_test_print_report(const unit_test_t *utp);
#endif /* !UNIT_TEST_H */