[FEAT] Color Finish all tests

raytracing/src/color.cpp

@@ -109,6 +109,20 @@ const Color Color::operator*(double a_scalar) const
 
 /* ------------------------------------------------------------------------- */
 
+const Color Color::operator*(const Color &a_color) const
+{
+    // Using the hadamard product.
+    double the_red, the_green, the_blue;
+
+    the_red = m_red * a_color.m_red;
+    the_green = m_green * a_color.m_green;
+    the_blue = m_blue * a_color.m_blue;
+
+    return Color(the_red, the_green, the_blue);
+}
+
+/* ------------------------------------------------------------------------- */
+
 const Color &Color::operator+=(const Color &a_color)
 {
     m_red += a_color.m_red;

raytracing/src/color.h

@@ -42,6 +42,7 @@ namespace Raytracer
         const Color operator+(const Color &a_color) const;
         const Color operator-(const Color &a_color) const;
         const Color operator*(double a_scalar) const;
+        const Color operator*(const Color &a_color) const;
 
         const Color &operator+=(const Color &a_color);
         const Color &operator-=(const Color &a_color);

tests/02_colors.cpp

@@ -119,3 +119,14 @@ TEST_CASE("Multiplying a color by a scalar without modify c", "[Colors]")
 
     REQUIRE(c * 2 == Color(0.4, 0.6, 0.8));
 }
+
+/* ------------------------------------------------------------------------- */
+
+TEST_CASE("Multiplying a colors", "[Colors]")
+{
+    Color c1(1, 0.2, 0.4);
+    Color c2(0.9, 1, 0.1);
+
+
+    REQUIRE((c1 * c2) == Color(0.9, 0.2, 0.04));
+}

tests/CMakeLists.txt

@@ -2,8 +2,6 @@ cmake_minimum_required(VERSION 3.14)
 
 project(main_test)
 
-include(CTest)
-
 enable_testing()
 
 set(CMAKE_CXX_STANDARD 20)