293 lines
6.2 KiB
C++
293 lines
6.2 KiB
C++
#include <sstream>
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#include <gtest/gtest.h>
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#include <wrmath/geom/vector.h>
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using namespace std;
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using namespace wr;
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TEST(Vector3Miscellaneous, ExtractionOperator)
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{
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geom::Vector3d vec {1.0, 2.0, 3.0};
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stringstream vecBuffer;
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vecBuffer << vec;
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EXPECT_EQ(vecBuffer.str(), "<1, 2, 3>");
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}
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TEST(Vector3Miscellaneous, SetEpsilon)
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{
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geom::Vector3f a {1.0, 1.0, 1.0};
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geom::Vector3f b;
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a.setEpsilon(1.1);
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EXPECT_EQ(a, b);
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}
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TEST(Vector3FloatTests, Magnitude)
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{
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geom::Vector3f v3f {1.0, -2.0, 3.0};
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const float expected = 3.74165738677394;
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EXPECT_FLOAT_EQ(v3f.magnitude(), expected);
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}
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TEST(Vector3FloatTests, Equality)
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{
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geom::Vector3f a {1.0, 2.0, 3.0};
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geom::Vector3f b {1.0, 2.0, 3.0};
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geom::Vector3f c {1.0, 2.0, 1.0};
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EXPECT_EQ(a, b);
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EXPECT_EQ(b, a);
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EXPECT_NE(a, c);
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EXPECT_NE(b, c);
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}
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TEST(Vector3FloatTests, Addition)
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{
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geom::Vector3f a {1.0, 2.0, 3.0};
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geom::Vector3f b {4.0, 5.0, 6.0};
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geom::Vector3f expected {5.0, 7.0, 9.0};
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EXPECT_EQ(a+b, expected);
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}
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TEST(Vector3FloatTests, Subtraction)
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{
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geom::Vector3f a {1.0, 2.0, 3.0};
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geom::Vector3f b {4.0, 5.0, 6.0};
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geom::Vector3f c {5.0, 7.0, 9.0};
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EXPECT_EQ(c-b, a);
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}
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TEST(Vector3FloatTests, ScalarMultiplication)
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{
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geom::Vector3f a {1.0, 2.0, 3.0};
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geom::Vector3f expected {3.0, 6.0, 9.0};
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EXPECT_EQ(a * 3.0, expected);
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}
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TEST(Vector3FloatTests, ScalarDivision)
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{
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geom::Vector3f a {1.0, 2.0, 3.0};
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geom::Vector3f b {3.0, 6.0, 9.0};
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EXPECT_EQ(b / 3.0, a);
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}
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TEST(Vector3FloatTests, DotProduct)
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{
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geom::Vector3f a {1.0, 2.0, 3.0};
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geom::Vector3f b {4.0, 5.0, 6.0};
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EXPECT_FLOAT_EQ(a * b, 32.0);
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}
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TEST(Vector3FloatTests, UnitVector)
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{
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// Test values randomly generated and calculated with numpy.
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geom::Vector3f vec3 {5.320264018493507, 5.6541812891273935, 1.9233435162644652};
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geom::Vector3f unit {0.6651669556972103, 0.7069150218815566, 0.24046636539587804};
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EXPECT_EQ(vec3.unitVector(), unit);
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EXPECT_FALSE(vec3.isUnitVector());
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EXPECT_TRUE(unit.isUnitVector());
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}
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TEST(Vector3FloatTests, Angle)
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{
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geom::Vector3f a {0.3977933061361172, 8.053980094436525, 8.1287759943773};
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geom::Vector3f b {9.817895298608196, 4.034166890407462, 4.37628316513266};
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geom::Vector3f c {7.35, 0.221, 5.188};
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geom::Vector3f d {2.751, 8.259, 3.985};
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EXPECT_FLOAT_EQ(a.angle(b), 0.9914540426033251);
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EXPECT_NEAR(c.angle(d), 1.052, 0.001);
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}
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TEST(Vector3FloatTests, ParallelOrthogonalVectors)
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{
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geom::Vector3f a {-2.029, 9.97, 4.172};
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geom::Vector3f b {-9.231, -6.639, -7.245};
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geom::Vector3f c {-2.328, -7.284, -1.214};
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geom::Vector3f d {-1.821, 1.072, -2.94};
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geom::Vector3f e {-2.0, 1.0, 3.0};
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geom::Vector3f f {-6.0, 3.0, 9.0};
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geom::Vector3f zeroVector;
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EXPECT_FALSE(a.isParallel(b));
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EXPECT_FALSE(a.isOrthogonal(b));
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EXPECT_FALSE(c.isParallel(d));
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EXPECT_TRUE(c.isOrthogonal(d));
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EXPECT_TRUE(e.isParallel(f));
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EXPECT_FALSE(e.isOrthogonal(f));
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EXPECT_TRUE(zeroVector.isZero());
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EXPECT_TRUE(c.isParallel(zeroVector));
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EXPECT_TRUE(c.isOrthogonal(zeroVector));
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}
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TEST(Vector3FloatTests, Projections)
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{
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geom::Vector4f a {3.009, -6.172, 3.692, -2.510};
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geom::Vector4f b {6.404, -9.144, 2.759, 8.718};
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geom::Vector4f c {1.9685, -2.8108, 0.8481, 2.6798};
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geom::Vector4f d {1.0405, -3.3612, 2.8439, -5.1898};
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ASSERT_EQ(a.projectParallel(b), c);
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ASSERT_EQ(a.projectOrthogonal(b), d);
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}
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TEST(Vector3DoubleTests, Magnitude)
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{
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geom::Vector3d v3d{1.0, -2.0, 3.0};
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const double expected = 3.74165738677394;
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EXPECT_DOUBLE_EQ(v3d.magnitude(), expected);
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}
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TEST(Vector3DoubleTests, Equality)
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{
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geom::Vector3d a {1.0, 2.0, 3.0};
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geom::Vector3d b {1.0, 2.0, 3.0};
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geom::Vector3d c {1.0, 2.0, 1.0};
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EXPECT_EQ(a, b);
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EXPECT_EQ(b, a);
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EXPECT_NE(a, c);
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EXPECT_NE(b, c);
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}
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TEST(Vector3DoubleTests, Addition)
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{
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geom::Vector3d a {1.0, 2.0, 3.0};
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geom::Vector3d b {4.0, 5.0, 6.0};
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geom::Vector3d expected {5.0, 7.0, 9.0};
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EXPECT_EQ(a+b, expected);
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}
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TEST(Vector3DoubleTests, Subtraction)
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{
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geom::Vector3d a {1.0, 2.0, 3.0};
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geom::Vector3d b {4.0, 5.0, 6.0};
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geom::Vector3d c {5.0, 7.0, 9.0};
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EXPECT_EQ(c-b, a);
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}
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TEST(Vector3DoubleTests, ScalarMultiplication)
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{
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geom::Vector3d a {1.0, 2.0, 3.0};
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geom::Vector3d expected {3.0, 6.0, 9.0};
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EXPECT_EQ(a * 3.0, expected);
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}
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TEST(Vector3DoubleTests, ScalarDivision)
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{
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geom::Vector3d a {1.0, 2.0, 3.0};
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geom::Vector3d b {3.0, 6.0, 9.0};
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EXPECT_EQ(b / 3.0, a);
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}
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TEST(Vector3DoubleTests, DotProduct)
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{
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geom::Vector3d a {1.0, 2.0, 3.0};
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geom::Vector3d b {4.0, 5.0, 6.0};
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EXPECT_DOUBLE_EQ(a * b, 32.0);
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}
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TEST(Vector3DoubleTests, UnitVector)
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{
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// Test values randomly generated and calculated with numpy.
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geom::Vector3d vec3 {5.320264018493507, 5.6541812891273935, 1.9233435162644652};
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geom::Vector3d unit {0.6651669556972103, 0.7069150218815566, 0.24046636539587804};
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EXPECT_EQ(vec3.unitVector(), unit);
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EXPECT_FALSE(vec3.isUnitVector());
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EXPECT_TRUE(unit.isUnitVector());
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}
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TEST(Vector3DoubleTests, Angle)
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{
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geom::Vector3d a {0.3977933061361172, 8.053980094436525, 8.1287759943773};
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geom::Vector3d b {9.817895298608196, 4.034166890407462, 4.37628316513266};
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geom::Vector3d c {7.35, 0.221, 5.188};
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geom::Vector3d d {2.751, 8.259, 3.985};
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EXPECT_DOUBLE_EQ(a.angle(b), 0.9914540426033251);
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EXPECT_NEAR(c.angle(d), 1.052, 0.001);
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}
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TEST(Vector3DoubleTests, ParallelOrthogonalVectors)
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{
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geom::Vector3d a {-2.029, 9.97, 4.172};
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geom::Vector3d b {-9.231, -6.639, -7.245};
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geom::Vector3d c {-2.328, -7.284, -1.214};
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geom::Vector3d d {-1.821, 1.072, -2.94};
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geom::Vector3d e {-2.0, 1.0, 3.0};
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geom::Vector3d f {-6.0, 3.0, 9.0};
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geom::Vector3d zeroVector;
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EXPECT_FALSE(a.isParallel(b));
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EXPECT_FALSE(a.isOrthogonal(b));
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EXPECT_FALSE(c.isParallel(d));
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EXPECT_TRUE(c.isOrthogonal(d));
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EXPECT_TRUE(e.isParallel(f));
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EXPECT_FALSE(e.isOrthogonal(f));
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EXPECT_TRUE(zeroVector.isZero());
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EXPECT_TRUE(c.isParallel(zeroVector));
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EXPECT_TRUE(c.isOrthogonal(zeroVector));
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}
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TEST(Vector3DoubleTests, Projections)
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{
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geom::Vector4d a {3.009, -6.172, 3.692, -2.510};
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geom::Vector4d b {6.404, -9.144, 2.759, 8.718};
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geom::Vector4d c {1.9685, -2.8108, 0.8481, 2.6798};
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geom::Vector4d d {1.0405, -3.3612, 2.8439, -5.1898};
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ASSERT_EQ(a.projectParallel(b), c);
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ASSERT_EQ(a.projectOrthogonal(b), d);
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}
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int
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main(int argc, char **argv)
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{
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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