/*
 * rngtest.cpp
 *
 *  Created on: Apr 20, 2015
 *      Author: gregor
 */

#include <gtest/gtest.h>

#include "GLTB/rng.h"

TEST(Random, copyRNG)
{
	gltb::Random rng1;
	rng1.init(1);

	// generate a couple of random numbers to get past the initial state
	for(int i = 0; i < 10; i++) {
		rng1.genrandInt31();
	}

	// create a copy of the RNG
	gltb::Random rng2 = rng1;

	// the Mersenne Twister has an internal pool of 623 random numbers, so request more than that
	for(int i = 0; i < 700; i++) {
		int randomNumber1 = rng1.genrandInt31();
		int randomNumber2 = rng2.genrandInt31();

		ASSERT_TRUE(randomNumber1 == randomNumber2);
	}
}

int main(int argc, char *argv[])
{
	::testing::InitGoogleTest(&argc, argv);

	return RUN_ALL_TESTS();
}