76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*
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* This file is part of the Colobot: Gold Edition source code
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* Copyright (C) 2001-2021, Daniel Roux, EPSITEC SA & TerranovaTeam
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* http://epsitec.ch; http://colobot.info; http://github.com/colobot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://gnu.org/licenses
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*/
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/*
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Unit tests for Vector struct
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Test data was randomly generated and the expected results
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calculated using GNU Octave.
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*/
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#include "math/func.h"
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#include "math/vector.h"
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#include <gtest/gtest.h>
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const float TEST_TOLERANCE = 1e-6;
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TEST(VectorTest, LengthTest)
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{
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Math::Vector vec(-1.288447945923275, 0.681452565308134, -0.633761098985957);
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const float expectedLength = 1.58938001708428;
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EXPECT_TRUE(Math::IsEqual(glm::length(vec), expectedLength, TEST_TOLERANCE));
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}
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TEST(VectorTest, NormalizeTest)
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{
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Math::Vector vec(1.848877241804398, -0.157262961268577, -1.963031403332377);
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const Math::Vector expectedNormalized(0.6844609421393856, -0.0582193085618106, -0.7267212194481797);
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vec = glm::normalize(vec);
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EXPECT_TRUE(Math::VectorsEqual(vec, expectedNormalized, TEST_TOLERANCE));
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}
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TEST(VectorTest, DotTest)
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{
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Math::Vector vecA(0.8202190530968309, 0.0130926060162780, 0.2411914183883510);
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Math::Vector vecB(-0.0524083951404069, 1.5564932716738220, -0.8971342631500536);
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float expectedDot = -0.238988896477326;
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EXPECT_TRUE(Math::IsEqual(Math::DotProduct(vecA, vecB), expectedDot, TEST_TOLERANCE));
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}
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TEST(VectorTest, CrossTest)
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{
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Math::Vector vecA(1.37380499798567, 1.18054518384682, 1.95166361293121);
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Math::Vector vecB(0.891657855926886, 0.447591335394532, -0.901604070087823);
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Math::Vector expectedCross(-1.937932065431669, 2.978844370287636, -0.437739173833581);
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Math::Vector expectedReverseCross = -expectedCross;
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EXPECT_TRUE(Math::VectorsEqual(glm::cross(vecA, vecB), expectedCross, TEST_TOLERANCE));
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EXPECT_TRUE(Math::VectorsEqual(glm::cross(vecB, vecA), expectedReverseCross, TEST_TOLERANCE));
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}
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