/********************************************************************************
* ReactPhysics3D physics library, http://www.reactphysics3d.com *
* Copyright (c) 2010-2016 Daniel Chappuis *
*********************************************************************************
* *
* This software is provided 'as-is', without any express or implied warranty. *
* In no event will the authors be held liable for any damages arising from the *
* use of this software. *
* *
* Permission is granted to anyone to use this software for any purpose, *
* including commercial applications, and to alter it and redistribute it *
* freely, subject to the following restrictions: *
* *
* 1. The origin of this software must not be misrepresented; you must not claim *
* that you wrote the original software. If you use this software in a *
* product, an acknowledgment in the product documentation would be *
* appreciated but is not required. *
* *
* 2. Altered source versions must be plainly marked as such, and must not be *
* misrepresented as being the original software. *
* *
* 3. This notice may not be removed or altered from any source distribution. *
* *
********************************************************************************/
#ifndef TEST_VECTOR2_H
#define TEST_VECTOR2_H
// Libraries
#include "Test.h"
#include "mathematics/Vector2.h"
/// Reactphysics3D namespace
namespace reactphysics3d {
// Class TestVector2
/**
* Unit test for the Vector2 class
*/
class TestVector2 : public Test {
private :
// ---------- Atributes ---------- //
/// Zero vector
Vector2 mVectorZero;
// Vector (3, 4)
Vector2 mVector34;
public :
// ---------- Methods ---------- //
/// Constructor
TestVector2(const std::string& name) : Test(name), mVectorZero(0, 0), mVector34(3, 4) {}
/// Run the tests
void run() {
testConstructors();
testLengthMethods();
testDotProduct();
testOthersMethods();
testOperators();
}
/// Test the constructors, getter and setter
void testConstructors() {
// Test constructor
test(mVectorZero.x == 0.0);
test(mVectorZero.y == 0.0);
test(mVector34.x == 3.0);
test(mVector34.y == 4.0);
// Test copy-constructor
Vector2 newVector(mVector34);
test(newVector.x == 3.0);
test(newVector.y == 4.0);
// Test method to set values
Vector2 newVector2;
newVector2.setAllValues(decimal(6.1), decimal(7.2));
test(approxEqual(newVector2.x, decimal(6.1)));
test(approxEqual(newVector2.y, decimal(7.2)));
// Test method to set to zero
newVector2.setToZero();
test(newVector2 == Vector2(0, 0));
}
/// Test the length, unit vector and normalize methods
void testLengthMethods() {
// Test length methods
test(mVectorZero.length() == 0.0);
test(mVectorZero.lengthSquare() == 0.0);
test(Vector2(1, 0).length() == 1.0);
test(Vector2(0, 1).length() == 1.0);
test(mVector34.lengthSquare() == 25.0);
// Test unit vector methods
test(Vector2(1, 0).isUnit());
test(Vector2(0, 1).isUnit());
test(!mVector34.isUnit());
test(Vector2(5, 0).getUnit() == Vector2(1, 0));
test(Vector2(0, 5).getUnit() == Vector2(0, 1));
test(!mVector34.isZero());
test(mVectorZero.isZero());
// Test normalization method
Vector2 mVector10(1, 0);
Vector2 mVector01(0, 1);
Vector2 mVector50(5, 0);
Vector2 mVector05(0, 5);
mVector10.normalize();
mVector01.normalize();
mVector50.normalize();
mVector05.normalize();
test(mVector10 == Vector2(1, 0));
test(mVector01 == Vector2(0, 1));
test(mVector50 == Vector2(1, 0));
test(mVector05 == Vector2(0, 1));
}
/// Test the dot product
void testDotProduct() {
// Test the dot product
test(Vector2(5, 0).dot(Vector2(0, 8)) == 0);
test(Vector2(5, 8).dot(Vector2(0, 0)) == 0);
test(Vector2(12, 45).dot(Vector2(0, 0)) == 0);
test(Vector2(5, 7).dot(Vector2(5, 7)) == 74);
test(Vector2(3, 6).dot(Vector2(-3, -6)) == -45);
test(Vector2(2, 3).dot(Vector2(-7, 4)) == -2);
test(Vector2(4, 3).dot(Vector2(8, 9)) == 59);
}
/// Test others methods
void testOthersMethods() {
// Test the method that returns the absolute vector
test(Vector2(4, 5).getAbsoluteVector() == Vector2(4, 5));
test(Vector2(-7, -24).getAbsoluteVector() == Vector2(7, 24));
// Test the method that returns the minimal element
test(Vector2(6, 35).getMinAxis() == 0);
test(Vector2(564, 45).getMinAxis() == 1);
test(Vector2(98, 23).getMinAxis() == 1);
test(Vector2(-53, -25).getMinAxis() == 0);
// Test the method that returns the maximal element
test(Vector2(6, 35).getMaxAxis() == 1);
test(Vector2(7, 537).getMaxAxis() == 1);
test(Vector2(98, 23).getMaxAxis() == 0);
test(Vector2(-53, -25).getMaxAxis() == 1);
// Test the methot that return a max/min vector
Vector2 vec1(-5, 4);
Vector2 vec2(-8, 6);
test(Vector2::min(vec1, vec2) == Vector2(-8, 4));
test(Vector2::max(vec1, vec2) == Vector2(-5, 6));
}
/// Test the operators
void testOperators() {
// Test the [] operator
test(mVector34[0] == 3);
test(mVector34[1] == 4);
// Assignment operator
Vector2 newVector(6, 4);
newVector = Vector2(7, 8);
test(newVector == Vector2(7, 8));
// Equality, inequality operators
test(Vector2(5, 7) == Vector2(5, 7));
test(Vector2(63, 64) != Vector2(63, 84));
test(Vector2(63, 64) != Vector2(12, 64));
// Addition, substraction
Vector2 vector1(6, 33);
Vector2 vector2(7, 68);
test(Vector2(63, 24) + Vector2(3, 4) == Vector2(66, 28));
test(Vector2(63, 24) - Vector2(3, 4) == Vector2(60, 20));
vector1 += Vector2(5, 10);
vector2 -= Vector2(10, 21);
test(vector1 == Vector2(11, 43));
test(vector2 == Vector2(-3, 47));
// Multiplication, division
Vector2 vector3(6, 33);
Vector2 vector4(15, 60);
test(Vector2(63, 24) * 3 == Vector2(189, 72));
test(3 * Vector2(63, 24) == Vector2(189, 72));
test(Vector2(14, 8) / 2 == Vector2(7, 4));
vector3 *= 10;
vector4 /= 3;
test(vector3 == Vector2(60, 330));
test(vector4 == Vector2(5, 20));
Vector2 vector5(21, 80);
Vector2 vector6(7, 10);
Vector2 vector7 = vector5 * vector6;
test(vector7 == Vector2(147, 800));
Vector2 vector8 = vector5 / vector6;
test(approxEqual(vector8.x, 3));
test(approxEqual(vector8.y, 8));
// Negative operator
Vector2 vector9(-34, 5);
Vector2 negative = -vector9;
test(negative == Vector2(34, -5));
}
};
}
#endif