ex19.c

#include "dbg.h"
#include <stdio.h>
#include <stdlib.h>

void test_debug() {
	debug("I have brown hair");
	debug("i am %d years old", 21);
}

void test_log_err() {
	log_err("I believe everything is broken");
	log_err("There are %d problems in %s", 0, "space");
}

void test_log_warn() {
	log_warn("You can safely ignore this");
	log_warn("Maybe consider looking at: %s.", "/etc/password");
}

void test_log_info() {
	log_info("Well I did something mundane.");
	log_info("It happened %f times today.", 1.3f);
}

int test_check(char* filename) {
	FILE* input = NULL;
	char* block = NULL;

	block = malloc(100);
	check_mem(block);

	input = fopen(filename, "r");
	check(input, "Failed to open %s.", filename);

	free(block);
	fclose(input);
	return 0;

error:
	if (block) free(block);
	if (input) fclose(input);
	return -1;
}

int test_sentinel(int code) {
	char* temp = malloc(100);
	check_mem(temp);

	switch (code) {
		case 1: log_info("It worked"); break;
		default: sentinel("I shouldn't run");
	}

	free(temp);
	return 0;

error:
	if (temp) free(temp);
	return -1;
}

int test_check_mem() {
	char* test = NULL;
	check_mem(test);

	free(test);
	return 0;

error:
	return -1;
}

int test_check_debug() {
	int i = 0;
	check_debug(i != 0, "Oops, I was 0");
	return 0;

error:
	return 1;
}

int main(int argc, char* argv[]) {
	check(argc == 2, "Need an argument");

	test_debug();
	test_log_err();
	test_log_warn();
	test_log_info();

	check(test_check("ex19.c") == 0, "failed with ex19.c");
	check(test_check(argv[1]) == -1, "failed with argv: %s", argv[1]);
	check(test_sentinel(1) == 0, "test_senitel failed");
	check(test_sentinel(100) == -1, "test_senitel failed");
	check(test_check_mem() == -1, "test_check_mem failed");
	check(test_check_debug() == -1, "test_check_debug failed");

	return 0;

error:
	return 1;
}