X-Git-Url: http://git.localhorst.tv/?p=blobs.git;a=blobdiff_plain;f=tst%2Fgraphics%2FColorTest.cpp;fp=tst%2Fgraphics%2FColorTest.cpp;h=250b902ece75d999924cdea91854ea070b05e4a2;hp=0000000000000000000000000000000000000000;hb=01cc65097f27ad657130fb58a10813e8d5c09fe7;hpb=99bac662c454fcf3680fa9c080c90e24319d8d3d

diff --git a/tst/graphics/ColorTest.cpp b/tst/graphics/ColorTest.cpp
new file mode 100644
index 0000000..250b902
--- /dev/null
+++ b/tst/graphics/ColorTest.cpp
@@ -0,0 +1,124 @@
+#include "ColorTest.hpp"
+
+#include "../assert.hpp"
+
+#include "graphics/color.hpp"
+
+#include <limits>
+
+CPPUNIT_TEST_SUITE_REGISTRATION(blobs::graphics::test::ColorTest);
+
+using blobs::test::AssertEqual;
+
+
+namespace blobs {
+namespace graphics {
+namespace test {
+
+void ColorTest::setUp() {
+
+}
+
+void ColorTest::tearDown() {
+
+}
+
+void ColorTest::testConversion() {
+	const double epsilon = 1.0e-9;
+	const glm::dvec3 rgb_black(0.0);
+	const glm::dvec3 rgb_white(1.0);
+	const glm::dvec3 rgb_red(1.0, 0.0, 0.0);
+	const glm::dvec3 rgb_green(0.0, 1.0, 0.0);
+	const glm::dvec3 rgb_blue(0.0, 0.0, 1.0);
+
+	glm::dvec3 hsl_result(rgb2hsl(rgb_black));
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong saturation for black",
+		0.0, hsl_result.y, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong lightness for black",
+		0.0, hsl_result.z, epsilon
+	);
+	glm::dvec3 rgb_result(hsl2rgb(hsl_result));
+	AssertEqual(
+		"bad HSL to RGB conversion for black",
+		rgb_black, rgb_result, epsilon
+	);
+
+	hsl_result = rgb2hsl(rgb_white);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong saturation for white",
+		0.0, hsl_result.y, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong lightness for white",
+		1.0, hsl_result.z, epsilon
+	);
+	rgb_result = hsl2rgb(hsl_result);
+	AssertEqual(
+		"bad HSL to RGB conversion for white",
+		rgb_white, rgb_result, epsilon
+	);
+
+	hsl_result = rgb2hsl(rgb_red);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong hue for red",
+		0.0, hsl_result.x, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong saturation for red",
+		1.0, hsl_result.y, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong lightness for red",
+		1.0, hsl_result.z, epsilon
+	);
+	rgb_result = hsl2rgb(hsl_result);
+	AssertEqual(
+		"bad HSL to RGB conversion for red",
+		rgb_red, rgb_result, epsilon
+	);
+
+	hsl_result = rgb2hsl(rgb_green);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong hue for green",
+		(1.0 / 3.0), hsl_result.x, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong saturation for green",
+		1.0, hsl_result.y, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong lightness for green",
+		1.0, hsl_result.z, epsilon
+	);
+	rgb_result = hsl2rgb(hsl_result);
+	AssertEqual(
+		"bad HSL to RGB conversion for green",
+		rgb_green, rgb_result, epsilon
+	);
+
+	hsl_result = rgb2hsl(rgb_blue);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong hue for blue",
+		(2.0 / 3.0), hsl_result.x, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong saturation for blue",
+		1.0, hsl_result.y, epsilon
+	);
+	CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
+		"wrong lightness for blue",
+		1.0, hsl_result.z, epsilon
+	);
+	rgb_result = hsl2rgb(hsl_result);
+	AssertEqual(
+		"bad HSL to RGB conversion for blue",
+		rgb_blue, rgb_result, epsilon
+	);
+}
+
+}
+}
+}