Adding operator== for ChainedTimingFunction

Source/core/platform/animation/TimingFunctionTest.cpp

Index: Source/core/platform/animation/TimingFunctionTest.cpp
diff --git a/Source/core/platform/animation/TimingFunctionTest.cpp b/Source/core/platform/animation/TimingFunctionTest.cpp
index 24fe02982187f4fca4c18257356fd4c04249dbc1..33d51b2c6db8d52a8b5c5f5382eb14fa5aa04d1f 100644
--- a/Source/core/platform/animation/TimingFunctionTest.cpp
+++ b/Source/core/platform/animation/TimingFunctionTest.cpp
@@ -64,6 +64,7 @@
         } \
     }
 
+
 using namespace WebCore;
 
 namespace {
@@ -86,12 +87,21 @@ TEST_F(TimingFunctionTest, BaseOperatorEq)
     RefPtr<TimingFunction> stepsTiming1 = StepsTimingFunction::preset(StepsTimingFunction::End);
     RefPtr<TimingFunction> stepsTiming2 = StepsTimingFunction::create(5, true);
 
+    RefPtr<ChainedTimingFunction> chainedTiming1 = ChainedTimingFunction::create();
+    chainedTiming1->appendSegment(1.0, linearTiming.get());
+
+    RefPtr<ChainedTimingFunction> chainedTiming2 = ChainedTimingFunction::create();
+    chainedTiming2->appendSegment(0.5, cubicTiming1.get());
+    chainedTiming2->appendSegment(1.0, cubicTiming2.get());
+
     NE_HELPER(v);
     NE_HELPER_APPEND(v, linearTiming);
     NE_HELPER_APPEND(v, cubicTiming1);
     NE_HELPER_APPEND(v, cubicTiming2);
     NE_HELPER_APPEND(v, stepsTiming1);
     NE_HELPER_APPEND(v, stepsTiming2);
+    NE_HELPER_APPEND(v, chainedTiming1);
+    NE_HELPER_APPEND(v, chainedTiming2);
     NE_HELPER_LOOP(v);
 }
 
@@ -177,5 +187,67 @@ TEST_F(TimingFunctionTest, StepsOperatorEqReflectivityBug)
     EXPECT_REFV_NE(stepsB, stepsA);
 }
 
+TEST_F(TimingFunctionTest, ChainedEq)
+{
+    // Single item in chain
+    RefPtr<TimingFunction> cubicTiming1 = CubicBezierTimingFunction::create(0.25, 0.1, 0.25, 1.0);
+    RefPtr<TimingFunction> cubicTiming2 = CubicBezierTimingFunction::create(0.25, 0.1, 0.25, 1.0);
+    RefPtr<TimingFunction> cubicTiming3 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseOut);
+
+    RefPtr<ChainedTimingFunction> chainedSingleCubic1 = ChainedTimingFunction::create();
+    chainedSingleCubic1->appendSegment(1.0, cubicTiming1.get());
+    EXPECT_REFV_EQ(chainedSingleCubic1, chainedSingleCubic1);
+
+    RefPtr<ChainedTimingFunction> chainedSingleCubic2 = ChainedTimingFunction::create();
+    chainedSingleCubic2->appendSegment(1.0, cubicTiming1.get()); // Same inner timing function
+    EXPECT_REFV_EQ(chainedSingleCubic1, chainedSingleCubic2);
+
+    RefPtr<ChainedTimingFunction> chainedSingleCubic3 = ChainedTimingFunction::create();
+    chainedSingleCubic3->appendSegment(1.0, cubicTiming2.get()); // == inner timing function
+    EXPECT_REFV_EQ(chainedSingleCubic1, chainedSingleCubic3);
+
+    RefPtr<ChainedTimingFunction> chainedSingleCubic4 = ChainedTimingFunction::create();
+    chainedSingleCubic4->appendSegment(0.5, cubicTiming1.get()); // Different offset
+    EXPECT_REFV_NE(chainedSingleCubic1, chainedSingleCubic4);
+    EXPECT_REFV_NE(chainedSingleCubic3, chainedSingleCubic4);
+
+    RefPtr<ChainedTimingFunction> chainedSingleCubic5 = ChainedTimingFunction::create();
+    chainedSingleCubic5->appendSegment(1.0, cubicTiming3.get()); // != inner timing function (same type)
+    EXPECT_REFV_NE(chainedSingleCubic1, chainedSingleCubic5);
+    EXPECT_REFV_NE(chainedSingleCubic2, chainedSingleCubic5);
+    EXPECT_REFV_NE(chainedSingleCubic3, chainedSingleCubic5);
+    EXPECT_REFV_NE(chainedSingleCubic4, chainedSingleCubic5);
+
+    RefPtr<TimingFunction> linearTiming1 = LinearTimingFunction::create();
+    RefPtr<ChainedTimingFunction> chainedSingleLinear1 = ChainedTimingFunction::create();
+    chainedSingleLinear1->appendSegment(1.0, linearTiming1.get()); // != inner timing function (different type)
+    EXPECT_REFV_NE(chainedSingleLinear1, chainedSingleCubic1);
+    EXPECT_REFV_NE(chainedSingleLinear1, chainedSingleCubic2);
+    EXPECT_REFV_NE(chainedSingleLinear1, chainedSingleCubic3);
+    EXPECT_REFV_NE(chainedSingleLinear1, chainedSingleCubic4);
+
+    // Multiple items in chain
+    RefPtr<ChainedTimingFunction> chainedMixed1 = ChainedTimingFunction::create();
+    chainedMixed1->appendSegment(0.25, chainedSingleLinear1.get());
+    chainedMixed1->appendSegment(1.0, cubicTiming1.get());
+
+    RefPtr<ChainedTimingFunction> chainedMixed2 = ChainedTimingFunction::create();
+    chainedMixed2->appendSegment(0.25, chainedSingleLinear1.get());
+    chainedMixed2->appendSegment(1.0, cubicTiming1.get());
+
+    RefPtr<ChainedTimingFunction> chainedMixed3 = ChainedTimingFunction::create();
+    chainedMixed3->appendSegment(0.25, chainedSingleLinear1.get());
+    chainedMixed3->appendSegment(1.0, cubicTiming2.get());
+
+    EXPECT_REFV_EQ(chainedMixed1, chainedMixed2);
+    EXPECT_REFV_EQ(chainedMixed1, chainedMixed3);
+    EXPECT_REFV_NE(chainedMixed1, chainedSingleCubic1);
+    EXPECT_REFV_NE(chainedMixed1, chainedSingleLinear1);
+
+    RefPtr<ChainedTimingFunction> chainedMixed4 = ChainedTimingFunction::create();
+    chainedMixed4->appendSegment(0.20, chainedSingleLinear1.get()); // Different offset
+    chainedMixed4->appendSegment(1.0, cubicTiming1.get());
+    EXPECT_REFV_NE(chainedMixed1, chainedMixed4);
+}
 
 } // namespace