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/**
* @file tests.h
* Structs and macro's for use in unit test cases
*/
#ifndef TESTS_H
#define TESTS_H
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
/**
* @private
* Print a failure message and exit
* @param fmt Error string
* @param args... Parameters for error string
*/
#define fail(fmt, args...) \
do { \
fprintf(stderr, "\n!! TEST FAILURE " fmt \
"\n at %s:%d (%s)" \
"\n in task PID=%d\n", \
## args, __FILE__, __LINE__, __FUNCTION__, \
getpid()); \
fflush(stderr); \
exit(200); \
} while (0)
/**
* Assert given predicate, print error if it doesn't hold
* @param predicate Predicate that must hold
*/
#define ASSERT(predicate) \
do { \
if (!(predicate)) \
fail("%s", #predicate); \
} while (0)
/**
* Do and trace a syscall
* @param call Syscall to execute
*/
#define SYSCALL(call) \
do { \
int __test_ret = (call); \
if (__test_ret < 0) \
fail("%s -> %d, %m", #call, __test_ret); \
} while (0)
/**
* Do and trace a syscall that is expected to fail
* @param expected Expected error code
* @param call Syscall to execute
*/
#define SYSCALL_FAILS(expected, call) \
do { \
int __test_ret = (call); \
if (__test_ret == 0 || errno != (expected)) \
fail("%s -> %d, %m (expected: %s)", \
#call, __test_ret, #expected); \
} while (0)
/**
* Function prototype for a single test case
*/
typedef void (*testfun_t)(void);
/**
* Test case
*/
struct testcase {
testfun_t function; /**< Function-pointer to test-case */
const char* description; /**< Description of test-case */
};
/**
* Suite containing several test cases
*/
struct testsuite {
const char* plugin; /**< Lock scheduling plugin to use */
int* testcases; /**< Pointer to array of test-cases
@todo why not struct testcase?*/
int num_cases; /**< Number of test cases in this suite */
};
/**
* Function descriptor for test case
* @param function Test name
* @param plugins Set of lock scheduling plugins this test case is applicable
* for, separated by |
* @param description Textual description of the test case
*
* Testcases defined with this macro will get picked up by a python test suite
* generator
*/
#define TESTCASE(function, plugins, description) void test_ ## function (void)
/**
* Fork given function body as separate thread
* @param code Function body
*/
#define FORK_TASK(code) ({int __pid = fork(); if (__pid == 0) {code; exit(0);}; __pid;})
#endif
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