tests file for RGB10A2, proper SFINAE condition for integral types

openVulkanoCpp/Math/RGB10A2.hpp

@@ -30,21 +30,21 @@ namespace OpenVulkano::Math
 
 		RGB10A2(TYPE value = 0) : value(value) {}
 
-		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<TYPE>>>
+		template<typename T, typename = std::enable_if_t<std::is_integral_v<TYPE>>>
 		void Set(Vector3<T> vec3)
 		{
 			vec3 &= VALUE_BITMASK;
 			SetUnchecked(vec3);
 		}
 
-		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<TYPE>>>
+		template<typename T, typename = std::enable_if_t<std::is_integral_v<TYPE>>>
 		void Set(Vector3_SIMD<T> vec3)
 		{
 			vec3 &= VALUE_BITMASK;
 			SetUnchecked(vec3);
 		}
 
-		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<TYPE>>>
+		template<typename T, typename = std::enable_if_t<std::is_integral_v<TYPE>>>
 		void Set(Vector4<T> vec4)
 		{
 			vec4 &= VALUE_BITMASK;
@@ -69,19 +69,19 @@ namespace OpenVulkano::Math
 			Set(Math::Vector4<TYPE>(vec4));
 		}
 
-		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<TYPE>>>
+		template<typename T, typename = std::enable_if_t<std::is_integral_v<TYPE>>>
 		void const SetUnchecked(Vector3<T>& vec3)
 		{
 			value = vec3.r | vec3.g << 10 | vec3.b << 20 | MAX_ALPHA_VALUE << 30;
 		}
 
-		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<TYPE>>>
+		template<typename T, typename = std::enable_if_t<std::is_integral_v<TYPE>>>
 		void SetUnchecked(const Vector3_SIMD<T>& vec3)
 		{
 			value = vec3.r | vec3.g << 10 | vec3.b << 20 | MAX_ALPHA_VALUE << 30;
 		}
 
-		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<TYPE>>>
+		template<typename T, typename = std::enable_if_t<std::is_integral_v<TYPE>>>
 		void SetUnchecked(const Vector4<T>& vec4)
 		{
 			value = vec4.r | vec4.g << 10 | vec4.b << 20 | vec4.a << 30;

tests/Math/RGB10A2.cpp

@@ -0,0 +1,134 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include <catch2/catch_all.hpp>
+
+#include "Math/RGB10A2.hpp"
+
+using namespace OpenVulkano::Math;
+
+namespace
+{
+	bool almostEqual(float a, float b, float epsilon = 0.001f) { return std::fabs(a - b) < epsilon; }
+}
+
+TEST_CASE("Default Constructor", "[RGB10A2U]")
+{
+	RGB10A2U color;
+	REQUIRE(color.value == 0);
+}
+
+TEST_CASE("Set Method with Vector3", "[RGB10A2U]")
+{
+	RGB10A2U color;
+	Vector3<uint32_t> vec3 { 1000, 500, 250 };
+	color.Set(vec3);
+	REQUIRE(color.r == 1000);
+	REQUIRE(color.g == 500);
+	REQUIRE(color.b == 250);
+	REQUIRE(color.a == 3);
+}
+
+TEST_CASE("Set Method with Vector4", "[RGB10A2U]")
+{
+	RGB10A2U color;
+	Vector4<uint32_t> vec4 { 1000, 500, 250, 1 };
+	color.Set(vec4);
+	REQUIRE(color.r == 1000);
+	REQUIRE(color.g == 500);
+	REQUIRE(color.b == 250);
+	REQUIRE(color.a == 1);
+}
+
+TEST_CASE("SetNormalized Method with Vector3", "[RGB10A2U]")
+{
+	RGB10A2U color;
+	Vector3<float> vec3 { 0.5f, 0.25f, 0.125f };
+	color.SetNormalized(vec3);
+	REQUIRE(color.r == int(0.5 * 1023));
+	REQUIRE(color.g == int(0.25 * 1023));
+	REQUIRE(color.b == int(0.125 * 1023));
+	REQUIRE(color.a == 3);
+}
+
+TEST_CASE("Equality Operators", "[RGB10A2U]")
+{
+	RGB10A2U color;
+	RGB10A2U color2 { color };
+	REQUIRE(color == color2);
+	color2.r = 1;
+	REQUIRE(color != color2);
+}
+
+TEST_CASE("Conversion to Vector4", "[RGB10A2U]")
+{
+	RGB10A2U color;
+	color.Set(Vector4<uint32_t> { 1000, 500, 250, 2 });
+	Vector4f vec4 = color;
+	REQUIRE(almostEqual(vec4.x, 1000.0f / 1023.0f));
+	REQUIRE(almostEqual(vec4.y, 500.0f / 1023.0f));
+	REQUIRE(almostEqual(vec4.z, 250.0f / 1023.0f));
+	REQUIRE(almostEqual(vec4.w, 2.0f / 3.0f));
+}
+
+TEST_CASE("Default Constructor", "[RGB10A2S]")
+{
+	RGB10A2S color;
+	REQUIRE(color.value == 0);
+}
+
+TEST_CASE("Set Method with Vector3", "[RGB10A2S]")
+{
+	RGB10A2S color;
+	Vector3<int32_t> vec3 { 1000, 500, 250 };
+	color.Set(vec3);
+	REQUIRE(color.r == -24);
+	REQUIRE(color.g == 500);
+	REQUIRE(color.b == 250);
+	REQUIRE(color.a == 1);
+}
+
+TEST_CASE("Set Method with Vector4", "[RGB10A2S]")
+{
+	RGB10A2S color;
+	Vector4<int32_t> vec4 { 1000, 500, 250, 1 };
+	color.Set(vec4);
+	REQUIRE(color.r == -24); // because it is RGB10A2S
+	REQUIRE(color.g == 500);
+	REQUIRE(color.b == 250);
+	REQUIRE(color.a == 1);
+}
+
+TEST_CASE("SetNormalized Method with Vector3", "[RGB10A2S]")
+{
+	RGB10A2S color;
+	Vector3<float> vec3 { 0.5f, 0.25f, 0.125f };
+	color.SetNormalized(vec3);
+	REQUIRE(color.r == 255); // because it is RGB10A2S
+	REQUIRE(color.g == 127); // because it is RGB10A2S
+	REQUIRE(color.b == 63); // because it is RGB10A2S
+	REQUIRE(color.a == 1); // because it is RGB10A2S
+}
+
+TEST_CASE("Equality Operators", "[RGB10A2S]")
+{
+	RGB10A2S color;
+	RGB10A2S color2 { color };
+	REQUIRE(color == color2);
+	color2.r = 1;
+	REQUIRE(color != color2);
+}
+
+TEST_CASE("Conversion to Vector4", "[RGB10A2S]")
+{
+	RGB10A2S color;
+	color.Set(Vector4<int32_t> { 1000, 500, 250, 2 });
+	Vector4f vec4 = color;
+	REQUIRE(almostEqual(vec4.x, -0.0469667315)); // because the type is Signed. Ugh!
+	REQUIRE(almostEqual(vec4.y, 0.978474)); // because the type is Signed. Ugh!
+	REQUIRE(almostEqual(vec4.z, 0.489237)); // because the type is Signed. Ugh!
+	REQUIRE(almostEqual(vec4.w, -2.0f)); // because the type is Signed. Ugh!
+}