Add color tests, WIP

Signed-off-by: falkTX <falktx@falktx.com>

tests/Color.cpp

@@ -14,13 +14,204 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "tests.hpp"
+
+#define DPF_TEST_COLOR_CPP
+#include "dgl/src/Color.cpp"
+
 // --------------------------------------------------------------------------------------------------------------------
 
 int main()
 {
     USE_NAMESPACE_DGL;
 
-    // TODO
+    // constructor with no arguments, must give solid black
+    {
+        Color c;
+        DISTRHO_ASSERT_EQUAL(c.red, 0.0f, "red value is 0");
+        DISTRHO_ASSERT_EQUAL(c.green, 0.0f, "green value is 0");
+        DISTRHO_ASSERT_EQUAL(c.blue, 0.0f, "blue value is 0");
+        DISTRHO_ASSERT_EQUAL(c.alpha, 1.0f, "alpha value is 1");
+    }
+
+    // constructor gives correct floating-point values (arguments are r, g, b, a; in order)
+    {
+        Color c(0.1f, 0.2f, 0.3f, 0.4f);
+        DISTRHO_ASSERT_EQUAL(c.red, 0.1f, "red value is 0.1");
+        DISTRHO_ASSERT_EQUAL(c.green, 0.2f, "green value is 0.2");
+        DISTRHO_ASSERT_EQUAL(c.blue, 0.3f, "blue value is 0.3");
+        DISTRHO_ASSERT_EQUAL(c.alpha, 0.4f, "alpha value is 0.4");
+    }
+
+    // constructor gives correct integer values normalized to float (arguments are r, g, b, a; in order)
+    {
+        Color c(51, 102, 153);
+        DISTRHO_ASSERT_EQUAL(c.red, 0.2f, "red value is 0.2 (integer 51)");
+        DISTRHO_ASSERT_EQUAL(c.green, 0.4f, "green value is 0.4 (integer 102)");
+        DISTRHO_ASSERT_EQUAL(c.blue, 0.6f, "blue value is 0.6 (integer 153)");
+        DISTRHO_ASSERT_EQUAL(c.alpha, 1.0f, "alpha value is 1");
+
+        Color white(255, 255, 255);
+        DISTRHO_ASSERT_EQUAL(white.red, 1.0f, "white's red value is 1");
+        DISTRHO_ASSERT_EQUAL(white.green, 1.0f, "white's green value is 1");
+        DISTRHO_ASSERT_EQUAL(white.blue, 1.0f, "white's blue value is 1");
+        DISTRHO_ASSERT_EQUAL(white.alpha, 1.0f, "white alpha value is 1");
+    }
+
+    // copy colors around
+    {
+        Color black;
+        Color halfTransparentWhite(1.0f, 1.0f, 1.0f, 0.5f);
+
+        // constructor copy
+        Color test(halfTransparentWhite);
+        DISTRHO_ASSERT_EQUAL(test.red, 1.0f, "copied white's red value is 1.0");
+        DISTRHO_ASSERT_EQUAL(test.green, 1.0f, "copied white's green value is 1");
+        DISTRHO_ASSERT_EQUAL(test.blue, 1.0f, "copied white's blue value is 1");
+        DISTRHO_ASSERT_EQUAL(test.alpha, 0.5f, "copied white's alpha value is 0.5");
+
+        // assign operator
+        test = black;
+        DISTRHO_ASSERT_EQUAL(test.red, 0.0f, "assigned black's red value is 0");
+        DISTRHO_ASSERT_EQUAL(test.green, 0.0f, "assigned black's green value is 0");
+        DISTRHO_ASSERT_EQUAL(test.blue, 0.0f, "assigned black's blue value is 0");
+        DISTRHO_ASSERT_EQUAL(test.alpha, 1.0f, "assigned black's alpha value is 1");
+    }
+
+    // simple color comparisons
+    {
+        Color black1, black2;
+        Color white(1.0f, 1.0f, 1.0f);
+        Color halfTransparentWhite(1.0f, 1.0f, 1.0f, 0.5f);
+
+        // logic operators
+        DISTRHO_ASSERT_EQUAL(black1, black1, "color equals itself");
+        DISTRHO_ASSERT_EQUAL(black1, black2, "black equals black");
+        DISTRHO_ASSERT_NOT_EQUAL(black1, white, "black is not white");
+        DISTRHO_ASSERT_NOT_EQUAL(black1, halfTransparentWhite, "black is not half-transparent white");
+        DISTRHO_ASSERT_NOT_EQUAL(white, halfTransparentWhite, "white is not half-transparent white");
+
+        // class functions (truthful)
+        DISTRHO_ASSERT_EQUAL(black1.isEqual(black1), true, "color equals itself");
+        DISTRHO_ASSERT_EQUAL(black1.isEqual(black2), true, "black equals black");
+        DISTRHO_ASSERT_EQUAL(black1.isNotEqual(white), true, "black is not white");
+        DISTRHO_ASSERT_EQUAL(white.isNotEqual(halfTransparentWhite), true, "white is not half-transparent white");
+
+        // class functions (inverted)
+        DISTRHO_ASSERT_EQUAL(black1.isNotEqual(black1), false, "color equals itself");
+        DISTRHO_ASSERT_EQUAL(black1.isNotEqual(black2), false, "black equals black");
+        DISTRHO_ASSERT_EQUAL(black1.isEqual(white), false, "black is not white");
+        DISTRHO_ASSERT_EQUAL(white.isEqual(halfTransparentWhite), false, "white is not half-transparent white");
+
+        // class functions ignoring alpha
+        DISTRHO_ASSERT_EQUAL(black1.isEqual(black1, false), true, "color equals itself");
+        DISTRHO_ASSERT_EQUAL(black1.isEqual(black2, false), true, "black equals black");
+        DISTRHO_ASSERT_EQUAL(black1.isNotEqual(white, false), true, "black is not white");
+        DISTRHO_ASSERT_EQUAL(white.isEqual(halfTransparentWhite, false), true,
+                             "white is half-transparent white if we ignore alpha");
+    }
+
+    // TODO advanced color comparisons
+    {
+    }
+
+    // TODO fromHSL
+    {
+    }
+
+    // create colors from html strings
+    {
+        Color c000 = Color::fromHTML("#000");
+        DISTRHO_ASSERT_EQUAL(c000.red, 0.0f, "#000 red value is 0");
+        DISTRHO_ASSERT_EQUAL(c000.green, 0.0f, "#000 green value is 0");
+        DISTRHO_ASSERT_EQUAL(c000.blue, 0.0f, "#000 blue value is 0");
+        DISTRHO_ASSERT_EQUAL(c000.alpha, 1.0f, "#000 alpha value is 1");
+
+        Color c000000 = Color::fromHTML("#000000");
+        DISTRHO_ASSERT_EQUAL(c000000.red, 0.0f, "#000000 red value is 0");
+        DISTRHO_ASSERT_EQUAL(c000000.green, 0.0f, "#000000 green value is 0");
+        DISTRHO_ASSERT_EQUAL(c000000.blue, 0.0f, "#000000 blue value is 0");
+        DISTRHO_ASSERT_EQUAL(c000000.alpha, 1.0f, "#000000 alpha value is 1");
+
+        Color cfff = Color::fromHTML("#fff");
+        DISTRHO_ASSERT_EQUAL(cfff.red, 1.0f, "#fff red value is 1");
+        DISTRHO_ASSERT_EQUAL(cfff.green, 1.0f, "#fff green value is 1");
+        DISTRHO_ASSERT_EQUAL(cfff.blue, 1.0f, "#fff blue value is 1");
+        DISTRHO_ASSERT_EQUAL(cfff.alpha, 1.0f, "#fff alpha value is 1");
+
+        Color cffffff = Color::fromHTML("#ffffff");
+        DISTRHO_ASSERT_EQUAL(cffffff.red, 1.0f, "#ffffff red value is 1");
+        DISTRHO_ASSERT_EQUAL(cffffff.green, 1.0f, "#ffffff green value is 1");
+        DISTRHO_ASSERT_EQUAL(cffffff.blue, 1.0f, "#ffffff blue value is 1");
+        DISTRHO_ASSERT_EQUAL(cffffff.alpha, 1.0f, "#ffffff alpha value is 1");
+
+        Color cf00 = Color::fromHTML("#f00");
+        DISTRHO_ASSERT_EQUAL(cf00.red, 1.0f, "#f00 red value is 1");
+        DISTRHO_ASSERT_EQUAL(cf00.green, 0.0f, "#f00 green value is 0");
+        DISTRHO_ASSERT_EQUAL(cf00.blue, 0.0f, "#f00 blue value is 0");
+
+        Color cff0000 = Color::fromHTML("#ff0000");
+        DISTRHO_ASSERT_EQUAL(cff0000.red, 1.0f, "#ff0000 red value is 1");
+        DISTRHO_ASSERT_EQUAL(cff0000.green, 0.0f, "#ff0000 green value is 0");
+        DISTRHO_ASSERT_EQUAL(cff0000.blue, 0.0f, "#ff0000 blue value is 0");
+
+        Color c0f0 = Color::fromHTML("#0f0");
+        DISTRHO_ASSERT_EQUAL(c0f0.red, 0.0f, "#0f0 red value is 0");
+        DISTRHO_ASSERT_EQUAL(c0f0.green, 1.0f, "#0f0 green value is 1");
+        DISTRHO_ASSERT_EQUAL(c0f0.blue, 0.0f, "#0f0 blue value is 0");
+
+        Color c00ff00 = Color::fromHTML("#00ff00");
+        DISTRHO_ASSERT_EQUAL(c00ff00.red, 0.0f, "#00ff00 red value is 0");
+        DISTRHO_ASSERT_EQUAL(c00ff00.green, 1.0f, "#00ff00 green value is 1");
+        DISTRHO_ASSERT_EQUAL(c00ff00.blue, 0.0f, "#00ff00 blue value is 0");
+
+        Color c00f = Color::fromHTML("#00f");
+        DISTRHO_ASSERT_EQUAL(c00f.red, 0.0f, "#00f red value is 0");
+        DISTRHO_ASSERT_EQUAL(c00f.green, 0.0f, "#00f green value is 0");
+        DISTRHO_ASSERT_EQUAL(c00f.blue, 1.0f, "#00f blue value is 1");
+
+        Color c0000ff = Color::fromHTML("#0000ff");
+        DISTRHO_ASSERT_EQUAL(c0000ff.red, 0.0f, "#0000ff red value is 0");
+        DISTRHO_ASSERT_EQUAL(c0000ff.green, 0.0f, "#0000ff green value is 0");
+        DISTRHO_ASSERT_EQUAL(c0000ff.blue, 1.0f, "#0000ff blue value is 1");
+
+        // half point, round to 1 decimal point due to precision loss
+        Color grey = Color::fromHTML("#7b7b7b");
+        DISTRHO_ASSERT_EQUAL(std::round(grey.red*10)/10, 0.5f, "grey's rounded red value is 0.5");
+        DISTRHO_ASSERT_EQUAL(std::round(grey.green*10)/10, 0.5f, "grey's rounded green value is 0.5");
+        DISTRHO_ASSERT_EQUAL(std::round(grey.blue*10)/10, 0.5f, "grey's rounded blue value is 0.5");
+    }
+
+    // check bounds
+    {
+        Color negativeInteger(-1, -1, -1, -1.0f);
+        DISTRHO_ASSERT_EQUAL(negativeInteger.red, 0.0f, "red value is 0");
+        DISTRHO_ASSERT_EQUAL(negativeInteger.green, 0.0f, "green value is 0");
+        DISTRHO_ASSERT_EQUAL(negativeInteger.blue, 0.0f, "blue value is 0");
+        DISTRHO_ASSERT_EQUAL(negativeInteger.alpha, 0.0f, "alpha value is 0");
+
+        Color negativeFloat(-1.0f, -1.0f, -1.0f, -1.0f);
+        DISTRHO_ASSERT_EQUAL(negativeFloat.red, 0.0f, "red value is 0");
+        DISTRHO_ASSERT_EQUAL(negativeFloat.green, 0.0f, "green value is 0");
+        DISTRHO_ASSERT_EQUAL(negativeFloat.blue, 0.0f, "blue value is 0");
+        DISTRHO_ASSERT_EQUAL(negativeFloat.alpha, 0.0f, "alpha value is 0");
+
+        Color overflowInteger(0xfff, 0xfff, 0xfff, 0xfff);
+        DISTRHO_ASSERT_EQUAL(overflowInteger.red, 1.0f, "red value is 1");
+        DISTRHO_ASSERT_EQUAL(overflowInteger.green, 1.0f, "green value is 1");
+        DISTRHO_ASSERT_EQUAL(overflowInteger.blue, 1.0f, "blue value is 1");
+        DISTRHO_ASSERT_EQUAL(overflowInteger.alpha, 1.0f, "alpha value is 1");
+
+        Color overflowFloat(2.0f, 2.0f, 2.0f, 2.0f);
+        DISTRHO_ASSERT_EQUAL(overflowFloat.red, 1.0f, "red value is 1");
+        DISTRHO_ASSERT_EQUAL(overflowFloat.green, 1.0f, "green value is 1");
+        DISTRHO_ASSERT_EQUAL(overflowFloat.blue, 1.0f, "blue value is 1");
+        DISTRHO_ASSERT_EQUAL(overflowFloat.alpha, 1.0f, "alpha value is 1");
+    }
+
+    // TODO interpolation
+    {
+    }
 
     return 0;
 }

tests/Makefile

@@ -20,11 +20,9 @@ BUILD_CXX_FLAGS += -Wno-missing-field-initializers -Wno-extra
 
 # ---------------------------------------------------------------------------------------------------------------------
 
-# TODO
-src=Application.cpp
-
-TESTS = $(src:%.cpp=../build/tests/%)
-OBJS  = $(TESTS:%=%.o)
+TESTS   = Application Color
+TARGETS = $(TESTS:%=../build/tests/%)
+OBJS    = $(TARGETS:%=%.cpp.o)
 
 # ---------------------------------------------------------------------------------------------------------------------
 
@@ -36,14 +34,15 @@ endif
 
 # ---------------------------------------------------------------------------------------------------------------------
 
-all: $(TESTS)
+all: $(TARGETS)
 
 # ---------------------------------------------------------------------------------------------------------------------
 
 ../build/tests/%: ../build/tests/%.cpp.o
 	@echo "Linking $*"
 	$(SILENT)$(CXX) $< $(LINK_FLAGS) $(DGL_SYSTEM_LIBS) -o $@
-	$@
+	@echo "Running test for $*"
+	$(SILENT)$@
 # 	valgrind --leak-check=full $@
 
 # ---------------------------------------------------------------------------------------------------------------------