57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
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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(vec.Length(), 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.Normalize();
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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(vecA.CrossMultiply(vecB), expectedCross, TEST_TOLERANCE));
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EXPECT_TRUE(Math::VectorsEqual(vecB.CrossMultiply(vecA), expectedReverseCross, TEST_TOLERANCE));
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}
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