Add tests for 'sf::Color'

test/CMakeLists.txt

@@ -29,6 +29,7 @@ endif()
 
 if(SFML_BUILD_GRAPHICS)
     SET(GRAPHICS_SRC
+        "${SRCROOT}/Graphics/Color.cpp"
         "${SRCROOT}/Graphics/Rect.cpp"
         "${SRCROOT}/TestUtilities/GraphicsUtil.hpp"
         "${SRCROOT}/TestUtilities/GraphicsUtil.cpp"

test/Graphics/Color.cpp

@@ -0,0 +1,100 @@
+#include <SFML/Graphics/Color.hpp>
+#include "GraphicsUtil.hpp"
+
+TEST_CASE("sf::Color class - [graphics]")
+{
+    SUBCASE("Construction")
+    {
+        SUBCASE("Default constructor")
+        {
+            sf::Color c;
+            CHECK(c.r == 0);
+            CHECK(c.g == 0);
+            CHECK(c.b == 0);
+            CHECK(c.a == 255);
+        }
+
+        SUBCASE("(r, g, b) constructor")
+        {
+            sf::Color c(1, 2, 3);
+            CHECK(c.r == 1);
+            CHECK(c.g == 2);
+            CHECK(c.b == 3);
+            CHECK(c.a == 255);
+        }
+
+        SUBCASE("(r, g, b, a) constructor")
+        {
+            sf::Color c(1, 2, 3, 4);
+            CHECK(c.r == 1);
+            CHECK(c.g == 2);
+            CHECK(c.b == 3);
+            CHECK(c.a == 4);
+        }
+    }
+
+    SUBCASE("Integer conversions")
+    {
+        sf::Color c(1, 2, 3, 4);
+        sf::Uint32 cInt = c.toInteger();
+
+        sf::Color c2(cInt);
+        CHECK(c2.r == 1);
+        CHECK(c2.g == 2);
+        CHECK(c2.b == 3);
+        CHECK(c2.a == 4);
+    }
+
+    SUBCASE("Comparisons")
+    {
+        sf::Color c(1, 2, 3, 4);
+
+        CHECK(c == c);
+        CHECK(!(c != c));
+
+        sf::Color c2(4, 3, 2, 1);
+
+        CHECK(c2 != c);
+        CHECK(!(c2 == c));
+    }
+
+    SUBCASE("Operations")
+    {
+        SUBCASE("Clamped addition")
+        {
+            sf::Color c(50, 50, 50, 50);
+            CHECK(c + c == sf::Color(100, 100, 100, 100));
+
+            sf::Color c2(150, 150, 150, 150);
+            CHECK(c2 + c2 == sf::Color(255, 255, 255, 255));
+        }
+
+        SUBCASE("Clamped subtraction")
+        {
+            sf::Color c(50, 50, 50, 50);
+            sf::Color c2(150, 150, 150, 150);
+
+            CHECK(c2 - c == sf::Color(100, 100, 100, 100));
+            CHECK(c - c2 == sf::Color(0, 0, 0, 0));
+        }
+
+        SUBCASE("Modulation")
+        {
+            sf::Color c(255, 255, 255, 255);
+            sf::Color c2(2, 2, 2, 2);
+            CHECK(c * c2 == sf::Color(2, 2, 2, 2));
+            CHECK(c2 * c == sf::Color(2, 2, 2, 2));
+        }
+    }
+
+    SUBCASE("Constexpr support")
+    {
+        constexpr sf::Color c(1, 2, 3, 4);
+        static_assert(c.r == 1);
+        static_assert(c.g == 2);
+        static_assert(c.b == 3);
+        static_assert(c.a == 4);
+
+        static_assert(c + c == sf::Color(2, 4, 6, 8));
+    }
+}