Simple Testrunner for C++

testrunner.cpp

#include <iostream>
#include <cassert>
#include <vector>
#include <functional>
#include <unistd.h>
#include <sys/wait.h>
#include <cstring>


void test_ok() {
	std::cout << "bla" << std::endl;
	assert(1 == 1);
}

void test_fail() {
	assert(1 == 2);
}



struct Test {
	std::string name;
	std::function<void()> function;
};

constexpr char const * const OK = "\033[32m[OK]\033[0m";
constexpr char const * const FAIL = "\033[31m[FAIL]\033[0m";

int main() {
	std::vector<Test> tests = {
			{.name = "test_ok", .function = test_ok},
			{.name = "test_fail", .function = test_fail}
	};

	for (auto const & test : tests) {
		std::cout << "\033[34mRunning test '" << test.name << "'\033[0m" << std::endl;

		pid_t pid = fork();
		if (pid == -1) {
			std::cerr << "fork failed" << std::endl;
			return 1;
		} else if (pid == 0) {
			// Child process
			test.function();
			return 0;
		} else {
			// Parent process
			// Wait until child finishes
			int status;
			waitpid(pid, &status, 0);
			if (WIFEXITED(status)) {
				// Child exited normally
				if (WEXITSTATUS(status) == 0) {
					// Child exited with status 0
					std::cout << OK << std::endl;
				} else {
					// Child exited with non-zero status
					std::cout << FAIL << " exit_code = " << WEXITSTATUS(status) << std::endl;
				}
			} else {
				// Child exited abnormally
				if (WIFSIGNALED(status)) {
					int const signal = WTERMSIG(status);
					std::cout << FAIL << " signal = " << signal << " (" << strsignal(signal) << ")" << std::endl;
				} else {
					std::cout << FAIL << std::endl;
				}
			}
		}
		std::cout << std::endl;
	}
}