✨ (coreled): RGB, add overload opertor +, +=

drivers/CoreLED/include/RGB.h

@@ -5,6 +5,7 @@
 #ifndef _LEKA_OS_DRIVER_CORE_LED_RGB_H_
 #define _LEKA_OS_DRIVER_CORE_LED_RGB_H_
 
+#include <algorithm>
 #include <cstdint>
 
 namespace leka {
@@ -16,6 +17,21 @@ struct RGB {
 
 	auto operator<=>(RGB const &rhs) const -> bool = default;
 
+	auto operator+=(RGB const &rhs) -> RGB
+	{
+		red	  = std::min(red + rhs.red, 255);
+		green = std::min(green + rhs.green, 255);
+		blue  = std::min(blue + rhs.blue, 255);
+		return *this;
+	}
+
+	auto operator+(const RGB &rhs) const -> RGB
+	{
+		auto color = *this;
+		color += rhs;
+		return color;
+	}
+
 	static const RGB white;
 	static const RGB black;
 	static const RGB pure_red;

drivers/CoreLED/tests/RGB_test.cpp

@@ -28,3 +28,76 @@ TEST(RGBTest, different)
 	EXPECT_TRUE((black != RGB {0xFF, 0xFF, 0xFF}));
 	EXPECT_FALSE((black == RGB {0xFF, 0xFF, 0xFF}));
 }
+
+TEST(RGBTest, addTwoColor)
+{
+	RGB color1 = RGB::pure_red;
+	color1 += RGB::pure_blue;
+
+	RGB color2 = RGB::pure_red;
+	color2 += RGB::pure_green;
+
+	RGB color3 = RGB::pure_green;
+	color3 += RGB::pure_red;
+
+	RGB color4 = RGB::pure_green;
+	color4 += RGB::pure_blue;
+
+	RGB color5 = RGB::pure_blue;
+	color5 += RGB::pure_red;
+
+	RGB color6 = RGB::pure_blue;
+	color6 += RGB::pure_green;
+
+	RGB color7 = RGB::pure_blue;
+	color7 += RGB::pure_green;
+	color7 += RGB::pure_red;
+
+	EXPECT_TRUE(color1 == RGB::magenta);
+	EXPECT_TRUE(color2 == RGB::yellow);
+	EXPECT_TRUE(color3 == RGB::yellow);
+	EXPECT_TRUE(color4 == RGB::cyan);
+	EXPECT_TRUE(color5 == RGB::magenta);
+	EXPECT_TRUE(color6 == RGB::cyan);
+	EXPECT_TRUE(color7 == RGB::white);
+}
+
+TEST(RGBTest, addTwoColorOverTheBound1)
+{
+	RGB color = RGB::pure_red;
+	color += RGB::pure_red;
+
+	EXPECT_TRUE(color == RGB::pure_red);
+}
+
+TEST(RGBTest, addTwoColorOverTheBound2)
+{
+	RGB color = RGB::white;
+	color += RGB {10, 7, 120};
+
+	EXPECT_TRUE(color == RGB::white);
+}
+
+TEST(RGBTest, sumTwoColor)
+{
+	auto magenta1 = RGB::pure_red + RGB::pure_blue;
+	EXPECT_TRUE(magenta1 == RGB::magenta);
+
+	RGB magenta2 = RGB::pure_blue + RGB::pure_red;
+	EXPECT_TRUE(magenta2 == RGB::magenta);
+
+	auto yellow1 = RGB::pure_red + RGB::pure_green;
+	EXPECT_TRUE(yellow1 == RGB::yellow);
+
+	auto yellow2 = RGB::pure_green + RGB::pure_red;
+	EXPECT_TRUE(yellow2 == RGB::yellow);
+
+	auto cyan1 = RGB::pure_green + RGB::pure_blue;
+	EXPECT_TRUE(cyan1 == RGB::cyan);
+
+	auto cyan2 = RGB::pure_blue + RGB::pure_green;
+	EXPECT_TRUE(cyan2 == RGB::cyan);
+
+	auto white = RGB::pure_red + RGB::pure_green + RGB::pure_blue;
+	EXPECT_TRUE(white == RGB::white);
+}