mirror of
https://github.com/slendidev/smath.git
synced 2026-03-17 02:26:50 +02:00
Add .clang-format and format codebase
Signed-off-by: Slendi <slendi@socopon.com>
This commit is contained in:
251
tests/vec.cpp
251
tests/vec.cpp
@@ -11,169 +11,184 @@ using smath::Vec2;
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using smath::Vec3;
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using smath::Vec4;
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template <class T>
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static void ExpectVecNear(const Vec<3, T> &a, const Vec<3, T> &b,
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T eps = T(1e-6)) {
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for (int i = 0; i < 3; ++i)
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EXPECT_NEAR(double(a[i]), double(b[i]), double(eps));
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template<class T>
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static void ExpectVecNear(
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const Vec<3, T> &a, const Vec<3, T> &b, T eps = T(1e-6))
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{
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for (int i = 0; i < 3; ++i)
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EXPECT_NEAR(double(a[i]), double(b[i]), double(eps));
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}
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// Constructors and accessors
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TEST(Vec, DefaultZero) {
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Vec3 v;
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EXPECT_EQ(v[0], 0.0f);
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EXPECT_EQ(v[1], 0.0f);
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EXPECT_EQ(v[2], 0.0f);
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TEST(Vec, DefaultZero)
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{
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Vec3 v;
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EXPECT_EQ(v[0], 0.0f);
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EXPECT_EQ(v[1], 0.0f);
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EXPECT_EQ(v[2], 0.0f);
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}
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TEST(Vec, ScalarFillCtor) {
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Vec4 v{2.0f};
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EXPECT_EQ(v.x(), 2.0f);
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EXPECT_EQ(v.y(), 2.0f);
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EXPECT_EQ(v.z(), 2.0f);
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EXPECT_EQ(v.w(), 2.0f);
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TEST(Vec, ScalarFillCtor)
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{
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Vec4 v { 2.0f };
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EXPECT_EQ(v.x(), 2.0f);
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EXPECT_EQ(v.y(), 2.0f);
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EXPECT_EQ(v.z(), 2.0f);
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EXPECT_EQ(v.w(), 2.0f);
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}
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TEST(Vec, VariadicCtorScalarsAndSubvectors) {
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Vec2 a{1.0f, 2.0f};
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Vec2 b{3.0f, 4.0f};
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Vec4 v{a, b};
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EXPECT_EQ(v.r(), 1.0f);
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EXPECT_EQ(v.g(), 2.0f);
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EXPECT_EQ(v.b(), 3.0f);
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EXPECT_EQ(v.a(), 4.0f);
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TEST(Vec, VariadicCtorScalarsAndSubvectors)
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{
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Vec2 a { 1.0f, 2.0f };
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Vec2 b { 3.0f, 4.0f };
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Vec4 v { a, b };
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EXPECT_EQ(v.r(), 1.0f);
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EXPECT_EQ(v.g(), 2.0f);
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EXPECT_EQ(v.b(), 3.0f);
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EXPECT_EQ(v.a(), 4.0f);
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}
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TEST(Vec, NamedAccessorsAliases) {
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Vec3 v{1.0f, 2.0f, 3.0f};
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EXPECT_EQ(v.x(), v.r());
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EXPECT_EQ(v.y(), v.g());
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EXPECT_EQ(v.z(), v.b());
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TEST(Vec, NamedAccessorsAliases)
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{
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Vec3 v { 1.0f, 2.0f, 3.0f };
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EXPECT_EQ(v.x(), v.r());
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EXPECT_EQ(v.y(), v.g());
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EXPECT_EQ(v.z(), v.b());
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}
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// Arithmetic
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TEST(Vec, ElementwiseAndScalarOps) {
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Vec3 a{1.0f, 2.0f, 3.0f};
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Vec3 b{4.0f, 5.0f, 6.0f};
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TEST(Vec, ElementwiseAndScalarOps)
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{
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Vec3 a { 1.0f, 2.0f, 3.0f };
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Vec3 b { 4.0f, 5.0f, 6.0f };
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auto s1 = a + b;
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EXPECT_EQ(s1[0], 5.0f);
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EXPECT_EQ(s1[1], 7.0f);
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EXPECT_EQ(s1[2], 9.0f);
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auto s1 = a + b;
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EXPECT_EQ(s1[0], 5.0f);
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EXPECT_EQ(s1[1], 7.0f);
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EXPECT_EQ(s1[2], 9.0f);
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auto s2 = a * 2.0f;
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EXPECT_EQ(s2[0], 2.0f);
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EXPECT_EQ(s2[1], 4.0f);
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EXPECT_EQ(s2[2], 6.0f);
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auto s2 = a * 2.0f;
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EXPECT_EQ(s2[0], 2.0f);
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EXPECT_EQ(s2[1], 4.0f);
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EXPECT_EQ(s2[2], 6.0f);
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auto s3 = 2.0f * a; // RHS overloads
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EXPECT_EQ(s3[0], 2.0f);
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EXPECT_EQ(s3[1], 4.0f);
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EXPECT_EQ(s3[2], 6.0f);
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auto s3 = 2.0f * a; // RHS overloads
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EXPECT_EQ(s3[0], 2.0f);
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EXPECT_EQ(s3[1], 4.0f);
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EXPECT_EQ(s3[2], 6.0f);
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Vec3 c{1.0f, 2.0f, 3.0f};
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c += Vec3{1.0f, 1.0f, 1.0f};
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EXPECT_EQ(c[0], 2.0f);
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EXPECT_EQ(c[1], 3.0f);
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EXPECT_EQ(c[2], 4.0f);
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Vec3 c { 1.0f, 2.0f, 3.0f };
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c += Vec3 { 1.0f, 1.0f, 1.0f };
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EXPECT_EQ(c[0], 2.0f);
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EXPECT_EQ(c[1], 3.0f);
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EXPECT_EQ(c[2], 4.0f);
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c *= 2.0f;
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EXPECT_EQ(c[0], 4.0f);
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EXPECT_EQ(c[1], 6.0f);
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EXPECT_EQ(c[2], 8.0f);
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c *= 2.0f;
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EXPECT_EQ(c[0], 4.0f);
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EXPECT_EQ(c[1], 6.0f);
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EXPECT_EQ(c[2], 8.0f);
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}
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// Length, dot, cross, normalize
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TEST(Vec, MagnitudeAndDot) {
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Vec3 v{3.0f, 4.0f, 12.0f};
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EXPECT_FLOAT_EQ(v.magnitude(), 13.0f);
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EXPECT_FLOAT_EQ(v.length(), 13.0f);
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TEST(Vec, MagnitudeAndDot)
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{
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Vec3 v { 3.0f, 4.0f, 12.0f };
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EXPECT_FLOAT_EQ(v.magnitude(), 13.0f);
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EXPECT_FLOAT_EQ(v.length(), 13.0f);
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Vec3 u{1.0f, 0.0f, 2.0f};
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EXPECT_FLOAT_EQ(v.dot(u), 27.0f);
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Vec3 u { 1.0f, 0.0f, 2.0f };
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EXPECT_FLOAT_EQ(v.dot(u), 27.0f);
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}
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TEST(Vec, Cross3D) {
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Vec3 x{1.0f, 0.0f, 0.0f};
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Vec3 y{0.0f, 1.0f, 0.0f};
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auto z = x.cross(y);
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EXPECT_EQ(z[0], 0.0f);
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EXPECT_EQ(z[1], 0.0f);
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EXPECT_EQ(z[2], 1.0f);
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TEST(Vec, Cross3D)
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{
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Vec3 x { 1.0f, 0.0f, 0.0f };
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Vec3 y { 0.0f, 1.0f, 0.0f };
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auto z = x.cross(y);
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EXPECT_EQ(z[0], 0.0f);
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EXPECT_EQ(z[1], 0.0f);
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EXPECT_EQ(z[2], 1.0f);
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}
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TEST(Vec, NormalizeAndSafeNormalize) {
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Vec3 v{10.0f, 0.0f, 0.0f};
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auto n = v.normalized();
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auto ns = v.normalized_safe();
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ExpectVecNear(n, Vec3{1.0f, 0.0f, 0.0f});
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TEST(Vec, NormalizeAndSafeNormalize)
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{
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Vec3 v { 10.0f, 0.0f, 0.0f };
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auto n = v.normalized();
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auto ns = v.normalized_safe();
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ExpectVecNear(n, Vec3 { 1.0f, 0.0f, 0.0f });
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Vec3 zero{};
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auto zs = zero.normalized_safe();
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EXPECT_EQ(zs[0], 0.0f);
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EXPECT_EQ(zs[1], 0.0f);
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EXPECT_EQ(zs[2], 0.0f);
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Vec3 zero {};
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auto zs = zero.normalized_safe();
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EXPECT_EQ(zs[0], 0.0f);
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EXPECT_EQ(zs[1], 0.0f);
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EXPECT_EQ(zs[2], 0.0f);
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}
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TEST(Vec, DistanceAndProjection) {
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Vec3 a{1.0f, 2.0f, 3.0f};
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Vec3 b{4.0f, 6.0f, 3.0f};
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EXPECT_FLOAT_EQ(a.distance(b), 5.0f);
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TEST(Vec, DistanceAndProjection)
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{
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Vec3 a { 1.0f, 2.0f, 3.0f };
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Vec3 b { 4.0f, 6.0f, 3.0f };
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EXPECT_FLOAT_EQ(a.distance(b), 5.0f);
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Vec3 n{2.0f, 0.0f, 0.0f}; // onto x-axis scaled
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auto p = a.project_onto(n); // (a·n)/(n·n) * n = (2)/4 * n = 0.5 * n
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ExpectVecNear(p, Vec3{1.0f, 0.0f, 0.0f});
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Vec3 n { 2.0f, 0.0f, 0.0f }; // onto x-axis scaled
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auto p = a.project_onto(n); // (a·n)/(n·n) * n = (2)/4 * n = 0.5 * n
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ExpectVecNear(p, Vec3 { 1.0f, 0.0f, 0.0f });
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}
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// Approx equal
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TEST(Vec, ApproxEqual) {
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Vec3 a{1.0f, 2.0f, 3.0f};
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Vec3 b{1.0f + 1e-7f, 2.0f - 1e-7f, 3.0f};
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EXPECT_TRUE(a.approx_equal(b, 1e-6f));
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EXPECT_FALSE(a.approx_equal(b, 1e-9f));
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TEST(Vec, ApproxEqual)
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{
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Vec3 a { 1.0f, 2.0f, 3.0f };
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Vec3 b { 1.0f + 1e-7f, 2.0f - 1e-7f, 3.0f };
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EXPECT_TRUE(a.approx_equal(b, 1e-6f));
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EXPECT_FALSE(a.approx_equal(b, 1e-9f));
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}
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// std::get & tuple interop
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TEST(Vec, StdGetAndTuple) {
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Vec3 v{7.0f, 8.0f, 9.0f};
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static_assert(std::tuple_size_v<Vec3> == 3);
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static_assert(std::is_same_v<std::tuple_element_t<1, Vec3>, float>);
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EXPECT_EQ(std::get<0>(v), 7.0f);
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EXPECT_EQ(std::get<1>(v), 8.0f);
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EXPECT_EQ(std::get<2>(v), 9.0f);
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TEST(Vec, StdGetAndTuple)
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{
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Vec3 v { 7.0f, 8.0f, 9.0f };
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static_assert(std::tuple_size_v<Vec3> == 3);
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static_assert(std::is_same_v<std::tuple_element_t<1, Vec3>, float>);
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EXPECT_EQ(std::get<0>(v), 7.0f);
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EXPECT_EQ(std::get<1>(v), 8.0f);
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EXPECT_EQ(std::get<2>(v), 9.0f);
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}
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// Swizzle
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TEST(Vec, SwizzleBasic) {
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const Vec3 v{1.0f, 2.0f, 3.0f};
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TEST(Vec, SwizzleBasic)
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{
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const Vec3 v { 1.0f, 2.0f, 3.0f };
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auto yz = smath::swizzle<"yz">(v);
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EXPECT_EQ(yz[0], 2.0f);
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EXPECT_EQ(yz[1], 3.0f);
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auto yz = smath::swizzle<"yz">(v);
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EXPECT_EQ(yz[0], 2.0f);
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EXPECT_EQ(yz[1], 3.0f);
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auto rxx = smath::swizzle<"xxy">(v);
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EXPECT_EQ(rxx[0], 1.0f);
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EXPECT_EQ(rxx[1], 1.0f);
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EXPECT_EQ(rxx[2], 2.0f);
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auto rxx = smath::swizzle<"xxy">(v);
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EXPECT_EQ(rxx[0], 1.0f);
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EXPECT_EQ(rxx[1], 1.0f);
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EXPECT_EQ(rxx[2], 2.0f);
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}
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// std::formatter
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TEST(Vec, Formatter) {
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smath::Vec<3, int> vi{1, 2, 3};
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std::string s = std::format("{}", vi);
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EXPECT_EQ(s, "{1, 2, 3}");
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TEST(Vec, Formatter)
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{
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smath::Vec<3, int> vi { 1, 2, 3 };
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std::string s = std::format("{}", vi);
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EXPECT_EQ(s, "{1, 2, 3}");
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}
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// Conversions
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TEST(Vec, ExplicitConversionBetweenScalarTypes) {
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smath::Vec<3, int> vi{1, 2, 3};
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smath::Vec<3, float> vf{vi};
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EXPECT_EQ(vf[0], 1.0f);
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EXPECT_EQ(vf[1], 2.0f);
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EXPECT_EQ(vf[2], 3.0f);
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TEST(Vec, ExplicitConversionBetweenScalarTypes)
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{
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smath::Vec<3, int> vi { 1, 2, 3 };
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smath::Vec<3, float> vf { vi };
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EXPECT_EQ(vf[0], 1.0f);
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EXPECT_EQ(vf[1], 2.0f);
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EXPECT_EQ(vf[2], 3.0f);
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auto vi2 = static_cast<smath::Vec<3, int>>(vf);
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EXPECT_EQ(vi2[0], 1);
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EXPECT_EQ(vi2[1], 2);
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EXPECT_EQ(vi2[2], 3);
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auto vi2 = static_cast<smath::Vec<3, int>>(vf);
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EXPECT_EQ(vi2[0], 1);
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EXPECT_EQ(vi2[1], 2);
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EXPECT_EQ(vi2[2], 3);
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}
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