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/**
 * MinCTest - Minimalistic C unit test framework
 * Copyright (C) 2015  Camil Staps

 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef MINCTEST_H
#define MINCTEST_H

#include <stdint.h>
#include <stdbool.h>
#include <sys/time.h>

struct tester {
	uint16_t passed; /* Number of passed tests */
	uint16_t failed; /* Number of failed tests */
	bool show_pass;  /* Whether or not to print a message when a test passes */
	struct timeval start_last_test; /* Time last test was started */
	struct timeval created; /* Time this was created */
	__suseconds_t used; /* usecs used for tests */
};

/**
 * Initialize a tester struct
 *
 * This allocates a tester on the heap. Don't forget to call test_destroy to
 * free that memory.
 *
 * @return a struct on the heap for use in the other test_* functions
 */
struct tester *test_initialize(void);

/**
 * Show summarised data about the tester
 *
 * Shows a green message when all tests passed, otherwise a red message that
 * some failed. Shows passed/failed counts as well.
 *
 * @param tester* a pointer to a tester from test_initialize
 */
void test_wrapup(struct tester *);

/**
 * Destroy a tester struct
 *
 * Essentially frees the memory that was allocated for the struct.
 *
 * @param tester* a pointer to a tester from test_initialize
 */
void test_destroy(struct tester *);

/**
 * Exit the program with an appropriate return value
 *
 * Returns -1 if one or more tests failed, 0 otherwise. Exits the program.
 *
 * @param tester* a pointer to a tester from test_initialize
 * @return don't expect this to return
 */
void test_exit(struct tester *);

/**
 * Start the timer for a test
 */
void test_start_timer(struct tester *);

/**
 * Test for truth on a bool
 *
 * Outputs a red message for failure, and a green one for passing if 
 * tester->show_pass is true. Adds this test to the summarised data in the 
 * tester.
 *
 * @param tester* a pointer to a tester from test_initialize
 * @param check the boolean that should be true
 * @param test a custom message to show
 */
void test_true(struct tester *tester, bool check, const char* text);

#endif /* MINCTEST_H */