godot/tests/core/math/test_vector3i.h

/*************************************************************************/
/*  test_vector3i.h                                                      */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#ifndef TEST_VECTOR3I_H
#define TEST_VECTOR3I_H

#include "core/math/vector3i.h"
#include "tests/test_macros.h"

namespace TestVector3i {

TEST_CASE("[Vector3i] Constructor methods") {
	const Vector3i vector_empty = Vector3i();
	const Vector3i vector_zero = Vector3i(0, 0, 0);
	CHECK_MESSAGE(
			vector_empty == vector_zero,
			"Vector3i Constructor with no inputs should return a zero Vector3i.");
}

TEST_CASE("[Vector3i] Axis methods") {
	Vector3i vector = Vector3i(1, 2, 3);
	CHECK_MESSAGE(
			vector.max_axis_index() == Vector3i::Axis::AXIS_Z,
			"Vector3i max_axis_index should work as expected.");
	CHECK_MESSAGE(
			vector.min_axis_index() == Vector3i::Axis::AXIS_X,
			"Vector3i min_axis_index should work as expected.");
	CHECK_MESSAGE(
			vector[vector.max_axis_index()] == 3,
			"Vector3i array operator should work as expected.");
	CHECK_MESSAGE(
			vector[vector.min_axis_index()] == 1,
			"Vector3i array operator should work as expected.");

	vector[Vector3i::Axis::AXIS_Y] = 5;
	CHECK_MESSAGE(
			vector[Vector3i::Axis::AXIS_Y] == 5,
			"Vector3i array operator setter should work as expected.");
}

TEST_CASE("[Vector3i] Clamp method") {
	const Vector3i vector = Vector3i(10, 10, 10);
	CHECK_MESSAGE(
			Vector3i(-5, 5, 15).clamp(Vector3i(), vector) == Vector3i(0, 5, 10),
			"Vector3i clamp should work as expected.");
	CHECK_MESSAGE(
			vector.clamp(Vector3i(0, 10, 15), Vector3i(5, 10, 20)) == Vector3i(5, 10, 15),
			"Vector3i clamp should work as expected.");
}

TEST_CASE("[Vector3i] Length methods") {
	const Vector3i vector1 = Vector3i(10, 10, 10);
	const Vector3i vector2 = Vector3i(20, 30, 40);
	CHECK_MESSAGE(
			vector1.length_squared() == 300,
			"Vector3i length_squared should work as expected and return exact result.");
	CHECK_MESSAGE(
			Math::is_equal_approx(vector1.length(), 10 * Math_SQRT3),
			"Vector3i length should work as expected.");
	CHECK_MESSAGE(
			vector2.length_squared() == 2900,
			"Vector3i length_squared should work as expected and return exact result.");
	CHECK_MESSAGE(
			Math::is_equal_approx(vector2.length(), 53.8516480713450403125),
			"Vector3i length should work as expected.");
}

TEST_CASE("[Vector3i] Operators") {
	const Vector3i vector1 = Vector3i(4, 5, 9);
	const Vector3i vector2 = Vector3i(1, 2, 3);

	CHECK_MESSAGE(
			(vector1 + vector2) == Vector3i(5, 7, 12),
			"Vector3i addition with integers should give exact results.");
	CHECK_MESSAGE(
			(vector1 - vector2) == Vector3i(3, 3, 6),
			"Vector3i subtraction with integers should give exact results.");
	CHECK_MESSAGE(
			(vector1 * vector2) == Vector3i(4, 10, 27),
			"Vector3i multiplication with integers should give exact results.");
	CHECK_MESSAGE(
			(vector1 / vector2) == Vector3i(4, 2, 3),
			"Vector3i division with integers should give exact results.");

	CHECK_MESSAGE(
			(vector1 * 2) == Vector3i(8, 10, 18),
			"Vector3i multiplication with integers should give exact results.");
	CHECK_MESSAGE(
			(vector1 / 2) == Vector3i(2, 2, 4),
			"Vector3i division with integers should give exact results.");

	CHECK_MESSAGE(
			((Vector3)vector1) == Vector3(4, 5, 9),
			"Vector3i cast to Vector3 should work as expected.");
	CHECK_MESSAGE(
			((Vector3)vector2) == Vector3(1, 2, 3),
			"Vector3i cast to Vector3 should work as expected.");
	CHECK_MESSAGE(
			Vector3i(Vector3(1.1, 2.9, 3.9)) == Vector3i(1, 2, 3),
			"Vector3i constructed from Vector3 should work as expected.");
}

TEST_CASE("[Vector3i] Abs and sign methods") {
	const Vector3i vector1 = Vector3i(1, 3, 5);
	const Vector3i vector2 = Vector3i(1, -3, -5);
	CHECK_MESSAGE(
			vector1.abs() == vector1,
			"Vector3i abs should work as expected.");
	CHECK_MESSAGE(
			vector2.abs() == vector1,
			"Vector3i abs should work as expected.");

	CHECK_MESSAGE(
			vector1.sign() == Vector3i(1, 1, 1),
			"Vector3i sign should work as expected.");
	CHECK_MESSAGE(
			vector2.sign() == Vector3i(1, -1, -1),
			"Vector3i sign should work as expected.");
}
} // namespace TestVector3i

#endif // TEST_VECTOR3I_H