Sketch SkPMFloat

tests/PMFloatTest.cpp

Index: tests/PMFloatTest.cpp
diff --git a/tests/PMFloatTest.cpp b/tests/PMFloatTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8b600b7283f4352dc0ded49d3d7bba520d765ac4
--- /dev/null
+++ b/tests/PMFloatTest.cpp
@@ -0,0 +1,15 @@
+#include "SkPMFloat.h"
+#include "Test.h"
+
+DEF_TEST(SkPMFloat, r) {
+    SkPMColor c = SkPreMultiplyColor(0xFFCC9933);
+
+    SkPMFloat pmf;
+    pmf.set(c);
+    REPORTER_ASSERT(r, SkScalarNearlyEqual(1.0f, pmf.a()));
+    REPORTER_ASSERT(r, SkScalarNearlyEqual(0.8f, pmf.r()));
+    REPORTER_ASSERT(r, SkScalarNearlyEqual(0.6f, pmf.g()));
+    REPORTER_ASSERT(r, SkScalarNearlyEqual(0.2f, pmf.b()));
+
+    REPORTER_ASSERT(r, c == pmf.get());
+}