/********************************************************************************
* 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_VECTOR3_H
#define TEST_VECTOR3_H
// Libraries
#include "Test.h"
#include "mathematics/Vector3.h"
/// Reactphysics3D namespace
namespace reactphysics3d {
// Class TestVector3
/**
* Unit test for the Vector3 class
*/
class TestVector3 : public Test {
private :
// ---------- Atributes ---------- //
/// Zero vector
Vector3 mVectorZero;
// Vector (3, 4, 5)
Vector3 mVector345;
public :
// ---------- Methods ---------- //
/// Constructor
TestVector3(const std::string& name): Test(name),mVectorZero(0, 0, 0),mVector345(3, 4, 5) {}
/// Run the tests
void run() {
testConstructors();
testLengthMethods();
testDotCrossProducts();
testOthersMethods();
testOperators();
}
/// Test the constructors, getter and setter
void testConstructors() {
// Test constructor
test(mVectorZero.x == 0.0);
test(mVectorZero.y == 0.0);
test(mVectorZero.z == 0.0);
test(mVector345.x == 3.0);
test(mVector345.y == 4.0);
test(mVector345.z == 5.0);
// Test copy-constructor
Vector3 newVector(mVector345);
test(newVector.x == 3.0);
test(newVector.y == 4.0);
test(newVector.z == 5.0);
// Test method to set values
Vector3 newVector2;
newVector2.setAllValues(decimal(6.1), decimal(7.2), decimal(8.6));
test(approxEqual(newVector2.x, decimal(6.1)));
test(approxEqual(newVector2.y, decimal(7.2)));
test(approxEqual(newVector2.z, decimal(8.6)));
// Test method to set to zero
newVector2.setToZero();
test(newVector2 == Vector3(0, 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(Vector3(1, 0, 0).length() == 1.0);
test(Vector3(0, 1, 0).length() == 1.0);
test(Vector3(0, 0, 1).length() == 1.0);
test(mVector345.lengthSquare() == 50.0);
// Test unit vector methods
test(Vector3(1, 0, 0).isUnit());
test(Vector3(0, 1, 0).isUnit());
test(Vector3(0, 0, 1).isUnit());
test(!mVector345.isUnit());
test(Vector3(5, 0, 0).getUnit() == Vector3(1, 0, 0));
test(Vector3(0, 5, 0).getUnit() == Vector3(0, 1, 0));
test(Vector3(0, 0, 5).getUnit() == Vector3(0, 0, 1));
test(!mVector345.isZero());
test(mVectorZero.isZero());
// Test normalization method
Vector3 mVector100(1, 0, 0);
Vector3 mVector010(0, 1, 0);
Vector3 mVector001(0, 0, 1);
Vector3 mVector500(5, 0, 0);
Vector3 mVector050(0, 5, 0);
Vector3 mVector005(0, 0, 5);
mVector100.normalize();
mVector010.normalize();
mVector001.normalize();
mVector500.normalize();
mVector050.normalize();
mVector005.normalize();
test(mVector100 == Vector3(1, 0, 0));
test(mVector010 == Vector3(0, 1, 0));
test(mVector001 == Vector3(0, 0, 1));
test(mVector500 == Vector3(1, 0, 0));
test(mVector050 == Vector3(0, 1, 0));
test(mVector005 == Vector3(0, 0, 1));
}
/// Test the dot and cross products
void testDotCrossProducts() {
// Test the dot product
test(Vector3(5, 0, 0).dot(Vector3(0, 8, 0)) == 0);
test(Vector3(5, 8, 0).dot(Vector3(0, 0, 6)) == 0);
test(Vector3(12, 45, 83).dot(Vector3(0, 0, 0)) == 0);
test(Vector3(5, 7, 8).dot(Vector3(5, 7, 8)) == 138);
test(Vector3(3, 6, 78).dot(Vector3(-3, -6, -78)) == -6129);
test(Vector3(2, 3, 5).dot(Vector3(2, 3, 5)) == 38);
test(Vector3(4, 3, 2).dot(Vector3(8, 9, 10)) == 79);
// Test the cross product
test(Vector3(0, 0, 0).cross(Vector3(0, 0, 0)) == Vector3(0, 0, 0));
test(Vector3(6, 7, 2).cross(Vector3(6, 7, 2)) == Vector3(0, 0, 0));
test(Vector3(1, 0, 0).cross(Vector3(0, 1, 0)) == Vector3(0, 0, 1));
test(Vector3(0, 1, 0).cross(Vector3(0, 0, 1)) == Vector3(1, 0, 0));
test(Vector3(0, 0, 1).cross(Vector3(0, 1, 0)) == Vector3(-1, 0, 0));
test(Vector3(4, 7, 24).cross(Vector3(8, 13, 11)) == Vector3(-235, 148, -4));
test(Vector3(-4, 42, -2).cross(Vector3(35, 7, -21)) == Vector3(-868, -154, -1498));
}
/// Test others methods
void testOthersMethods() {
// Test the method that returns the absolute vector
test(Vector3(4, 5, 6).getAbsoluteVector() == Vector3(4, 5, 6));
test(Vector3(-7, -24, -12).getAbsoluteVector() == Vector3(7, 24, 12));
// Test the method that returns the minimal element
test(Vector3(6, 35, 82).getMinAxis() == 0);
test(Vector3(564, 45, 532).getMinAxis() == 1);
test(Vector3(98, 23, 3).getMinAxis() == 2);
test(Vector3(-53, -25, -63).getMinAxis() == 2);
// Test the method that returns the maximal element
test(Vector3(6, 35, 82).getMaxAxis() == 2);
test(Vector3(7, 533, 36).getMaxAxis() == 1);
test(Vector3(98, 23, 3).getMaxAxis() == 0);
test(Vector3(-53, -25, -63).getMaxAxis() == 1);
// Test the methot that return a max/min vector
Vector3 vec1(-5, 4, 2);
Vector3 vec2(-8, 6, -1);
test(Vector3::min(vec1, vec2) == Vector3(-8, 4, -1));
test(Vector3::max(vec1, vec2) == Vector3(-5, 6, 2));
}
/// Test the operators
void testOperators() {
// Test the [] operator
test(mVector345[0] == 3);
test(mVector345[1] == 4);
test(mVector345[2] == 5);
// Assignment operator
Vector3 newVector(6, 4, 2);
newVector = Vector3(7, 8, 9);
test(newVector == Vector3(7, 8, 9));
// Equality, inequality operators
test(Vector3(5, 7, 3) == Vector3(5, 7, 3));
test(Vector3(63, 64, 24) != Vector3(63, 64, 5));
test(Vector3(63, 64, 24) != Vector3(12, 64, 24));
test(Vector3(63, 64, 24) != Vector3(63, 8, 24));
// Addition, substraction
Vector3 vector1(6, 33, 62);
Vector3 vector2(7, 68, 35);
test(Vector3(63, 24, 5) + Vector3(3, 4, 2) == Vector3(66, 28, 7));
test(Vector3(63, 24, 5) - Vector3(3, 4, 2) == Vector3(60, 20, 3));
vector1 += Vector3(5, 10, 12);
vector2 -= Vector3(10, 21, 5);
test(vector1 == Vector3(11, 43, 74));
test(vector2 == Vector3(-3, 47, 30));
// Multiplication, division
Vector3 vector3(6, 33, 62);
Vector3 vector4(15, 60, 33);
test(Vector3(63, 24, 5) * 3 == Vector3(189, 72, 15));
test(3 * Vector3(63, 24, 5) == Vector3(189, 72, 15));
test(Vector3(14, 8, 50) / 2 == Vector3(7, 4, 25));
vector3 *= 10;
vector4 /= 3;
test(vector3 == Vector3(60, 330, 620));
test(vector4 == Vector3(5, 20, 11));
Vector3 vector5(21, 80, 45);
Vector3 vector6(7, 10, 3);
Vector3 vector7 = vector5 * vector6;
test(vector7 == Vector3(147, 800, 135));
Vector3 vector8 = vector5 / vector6;
test(approxEqual(vector8.x, 3));
test(approxEqual(vector8.y, 8));
test(approxEqual(vector8.z, 15));
// Negative operator
Vector3 vector9(-34, 5, 422);
Vector3 negative = -vector9;
test(negative == Vector3(34, -5, -422));
}
};
}
#endif