MrTest
Simple C testing framework
Usage
Copy the mrtest.c and mrtest.h file into your project. In order to use the mrtest main: create a .c file that has the following:
#define MRTEST_MAIN
#include "mrtest.h"
Write as many testcases, in as many different files as you want. Compile with gcc or clang
Example Usage
#define MRTEST_MAIN
#include "mrtest.h"
TEST_CASE(unique_test_identifier) {
MRTEST(true);
MRTEST(false);
}
Language
Unique Test Identifier should be the same as a regular function name
Implementation
Main
The main iterates over a vector containing function pointers to each testcase.
Assertions
The assertion simply expands the expression into an if statement that prints an error message if false
TEST_CASE
TEST_CASE macro expands into a set of functions:
TEST_CASE(unique_identifier) {
/* ASSERTIONS */
}
->
static void unique_identifier(void);
static void MR_UNIQUE_NAMExx (void) __attribute__ ((constructor));
static void MR_UNIQUE_NAMExx (void) {
/* add unique_identifier to a global table of function pointers */
}
static void unique_identifier(void) {
/* ASSERTIONS */
}
The constructor attribute is not C standard. It makes it so that the function is called before the main is executed.
