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/* ----------------------------------------------------------------------------
 * matrixtest.cpp
 *
 * Copyright (c) 2017 Yann Herklotz Grave <ymherklotz@gmail.com> -- MIT License
 * See file LICENSE for more details
 * ----------------------------------------------------------------------------
 */

#include <algorithm>
#include <cstdlib>
#include <ctime>
#include <vector>

#include "Math/math.hpp"

#include "gtest/gtest.h"

template<int Size> int matrixAssign(int number, int i, int j)
{
	yage::Matrix<Size, Size, int> m;
	m[j][i]=number;

	return m[j][i];
}

template<int Size> int matrixAddition(int num1, int num2)
{
	yage::Matrix<Size, Size, int> m1, m2;
	m1[1][1]=num1;
	m2[1][1]=num2;

	yage::Matrix<Size, Size, int> m3 = m1+m2;

	return m3[1][1];
}

int vectorDotProduct(const std::vector<int> &vec_contents_f, const std::vector<int> &vec_contents_s)
{
	yage::Vector<3, int> v1(vec_contents_f);
	yage::Vector<3, int> v2(vec_contents_s);

	int x = yage::matrix::dot(v1, v2);

	return x==76;
}

bool matrixMultiplication()
{
	return false;
}

// TESTS

TEST(Matrix, Assign)
{
	int rand_num = rand();
	ASSERT_EQ(rand_num, matrixAssign<10>(rand_num, 4, 2));
}

TEST(Matrix, Addition)
{
	int rand_x = rand();
	int rand_y = rand();
	ASSERT_EQ(rand_x+rand_y, matrixAddition<10>(rand_x, rand_y));
}

TEST(Vector, DotProduct)
{
	std::vector<int> contents_i = { rand()%100, rand()%100, rand()%100 };
	std::vector<int> contents_j = { rand()%100, rand()%100, rand()%100 };
	int sum = 0;
	for(std::size_t i = 0; i < contents_i.size(); ++i)
	{
		sum += contents_i[i]*contents_j[i];
	}
	ASSERT_EQ(sum, vectorDotProduct(contents_i, contents_j));
}

int main(int argc, char **argv)
{
	srand(static_cast<unsigned>(time(nullptr)));
	testing::InitGoogleTest(&argc, argv);
	return RUN_ALL_TESTS();
}