Source/core/platform/animation/TimingFunctionTestHelperTest.cpp - platform/external/chromium_org/third_party/WebKit - Git at Google

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "config.h"

 #include "core/platform/animation/TimingFunctionTestHelper.h"

 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <sstream>
 #include <string>

 // FIXME: Remove once https://codereview.chromium.org/50603011/ lands.
 #define EXPECT_REFV_EQ(a, b) EXPECT_EQ(*(a.get()), *(b.get()))
 #define EXPECT_REFV_NE(a, b) EXPECT_NE(*(a.get()), *(b.get()))

 // Couple of macros to quickly assert a bunch of timing functions are not
 // equal.
 #define NE_STRINGIZE(x) NE_STRINGIZE2(x)
 #define NE_STRINGIZE2(x) #x
 #define NE_HELPER(v) \
     Vector<std::pair<std::string, RefPtr<TimingFunction> > > v;
 #define NE_HELPER_APPEND(v, x) \
     v.append(std::make_pair(std::string("Line " NE_STRINGIZE(__LINE__) ":" # x), x))
 #define NE_HELPER_LOOP(v) \
     for (size_t i = 0; i != v.size(); ++i) { \
         for (size_t j = 0; j != v.size(); ++j) { \
             if (i == j) \
                 continue; \
             EXPECT_REFV_NE(v[i].second, v[j].second) \
                 << v[i].first \
                 << " (" << ::testing::PrintToString(*v[i].second.get()) << ")" \
                 << "  ==  " \
                 << v[j].first \
                 << " (" << ::testing::PrintToString(*v[j].second.get()) << ")" \
                 << "\n"; \
         } \
     }

 namespace {

 using namespace WebCore;

 class TimingFunctionTestHelperTest : public ::testing::Test {

 public:
     // Make sure that the CubicBezierTimingFunction call goes via the generic
     // TimingFunction PrintTo.
     ::std::string PrintToString(RefPtr<CubicBezierTimingFunction> timing)
     {
         RefPtr<TimingFunction> generic = timing;
         return PrintToString(generic.get());
     }

     ::std::string PrintToString(RefPtr<TimingFunction> timing)
     {
         return PrintToString(timing.get());
     }

     ::std::string PrintToString(const TimingFunction* timing)
     {
         return ::testing::PrintToString(*timing);
     }
 };

 TEST_F(TimingFunctionTestHelperTest, LinearPrintTo)
 {
     RefPtr<TimingFunction> linearTiming = LinearTimingFunction::create();
     EXPECT_THAT(
         PrintToString(linearTiming),
         ::testing::MatchesRegex("LinearTimingFunction@.*"));
 }

 TEST_F(TimingFunctionTestHelperTest, CubicPrintTo)
 {
     RefPtr<TimingFunction> cubicEaseTiming = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
     EXPECT_THAT(
         PrintToString(cubicEaseTiming),
         ::testing::MatchesRegex("CubicBezierTimingFunction@.*\\(EaseIn, 0.42, 0, 1, 1\\)"));

     RefPtr<TimingFunction> cubicCustomTiming = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
     EXPECT_THAT(
         PrintToString(cubicCustomTiming),
         ::testing::MatchesRegex("CubicBezierTimingFunction@.*\\(Custom, 0.17, 0.67, 1, -1.73\\)"));
 }

 TEST_F(TimingFunctionTestHelperTest, StepPrintTo)
 {
     RefPtr<TimingFunction> stepTimingStart = StepsTimingFunction::preset(StepsTimingFunction::Start);
     EXPECT_THAT(
         PrintToString(stepTimingStart),
         ::testing::MatchesRegex("StepsTimingFunction@.*\\(Start, 1, true\\)"));

     RefPtr<TimingFunction> stepTimingCustom = StepsTimingFunction::create(5, false);
     EXPECT_THAT(
         PrintToString(stepTimingCustom),
         ::testing::MatchesRegex("StepsTimingFunction@.*\\(Custom, 5, false\\)"));
 }

 TEST_F(TimingFunctionTestHelperTest, ChainedPrintTo)
 {
     RefPtr<TimingFunction> linearTiming = LinearTimingFunction::create();
     RefPtr<ChainedTimingFunction> chainedLinearSingle = ChainedTimingFunction::create();
     chainedLinearSingle->appendSegment(1.0, linearTiming.get());
     EXPECT_THAT(
         PrintToString(chainedLinearSingle),
         ::testing::MatchesRegex(
             "ChainedTimingFunction@.*\\("
                 "LinearTimingFunction@.*\\[0 -> 1\\]"
             "\\)"));

     RefPtr<TimingFunction> cubicCustomTiming = CubicBezierTimingFunction::create(1.0, 0.0, 1, -1);

     RefPtr<ChainedTimingFunction> chainedMixed = ChainedTimingFunction::create();
     chainedMixed->appendSegment(0.75, chainedLinearSingle.get());
     chainedMixed->appendSegment(1.0, cubicCustomTiming.get());
     EXPECT_THAT(
         PrintToString(chainedMixed),
         ::testing::MatchesRegex(
             "ChainedTimingFunction@.*\\("
                 "ChainedTimingFunction@.*\\("
                     "LinearTimingFunction@.*\\[0 -> 1\\]"
                 "\\)\\[0 -> 0.75\\], "
                 "CubicBezierTimingFunction@.*\\(Custom, 1, 0, 1, -1\\)\\[0.75 -> 1\\]"
             "\\)"));
 }

 TEST_F(TimingFunctionTestHelperTest, BaseOperatorEq)
 {
     RefPtr<TimingFunction> linearTiming = LinearTimingFunction::create();
     RefPtr<TimingFunction> cubicTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
     RefPtr<TimingFunction> cubicTiming2 = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
     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);
 }

 TEST_F(TimingFunctionTestHelperTest, LinearOperatorEq)
 {
     RefPtr<TimingFunction> linearTiming1 = LinearTimingFunction::create();
     RefPtr<TimingFunction> linearTiming2 = LinearTimingFunction::create();
     EXPECT_REFV_EQ(linearTiming1, linearTiming1);
     EXPECT_REFV_EQ(linearTiming1, linearTiming2);
 }

 TEST_F(TimingFunctionTestHelperTest, CubicOperatorEq)
 {
     RefPtr<TimingFunction> cubicEaseInTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
     RefPtr<TimingFunction> cubicEaseInTiming2 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
     EXPECT_REFV_EQ(cubicEaseInTiming1, cubicEaseInTiming1);
     EXPECT_REFV_EQ(cubicEaseInTiming1, cubicEaseInTiming2);

     RefPtr<TimingFunction> cubicEaseOutTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseOut);
     RefPtr<TimingFunction> cubicEaseOutTiming2 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseOut);
     EXPECT_REFV_EQ(cubicEaseOutTiming1, cubicEaseOutTiming2);

     RefPtr<TimingFunction> cubicEaseInOutTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseInOut);
     RefPtr<TimingFunction> cubicEaseInOutTiming2 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseInOut);
     EXPECT_REFV_EQ(cubicEaseInOutTiming1, cubicEaseInOutTiming2);

     RefPtr<TimingFunction> cubicCustomTiming1 = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
     RefPtr<TimingFunction> cubicCustomTiming2 = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
     EXPECT_REFV_EQ(cubicCustomTiming1, cubicCustomTiming2);

     NE_HELPER(v);
     NE_HELPER_APPEND(v, cubicEaseInTiming1);
     NE_HELPER_APPEND(v, cubicEaseOutTiming1);
     NE_HELPER_APPEND(v, cubicEaseInOutTiming1);
     NE_HELPER_APPEND(v, cubicCustomTiming1);
     NE_HELPER_LOOP(v);
 }

 TEST_F(TimingFunctionTestHelperTest, CubicOperatorEqReflectivity)
 {
     RefPtr<TimingFunction> cubicA = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
     RefPtr<TimingFunction> cubicB = CubicBezierTimingFunction::create(0.42, 0.0, 1.0, 1.0);
     EXPECT_REFV_NE(cubicA, cubicB);
     EXPECT_REFV_NE(cubicB, cubicA);
 }

 TEST_F(TimingFunctionTestHelperTest, StepsOperatorEq)
 {
     RefPtr<TimingFunction> stepsTimingStart1 = StepsTimingFunction::preset(StepsTimingFunction::Start);
     RefPtr<TimingFunction> stepsTimingStart2 = StepsTimingFunction::preset(StepsTimingFunction::Start);
     EXPECT_REFV_EQ(stepsTimingStart1, stepsTimingStart1);
     EXPECT_REFV_EQ(stepsTimingStart1, stepsTimingStart2);

     RefPtr<TimingFunction> stepsTimingEnd1 = StepsTimingFunction::preset(StepsTimingFunction::End);
     RefPtr<TimingFunction> stepsTimingEnd2 = StepsTimingFunction::preset(StepsTimingFunction::End);
     EXPECT_REFV_EQ(stepsTimingEnd1, stepsTimingEnd2);

     RefPtr<TimingFunction> stepsTimingCustom1 = StepsTimingFunction::create(5, true);
     RefPtr<TimingFunction> stepsTimingCustom2 = StepsTimingFunction::create(5, false);
     RefPtr<TimingFunction> stepsTimingCustom3 = StepsTimingFunction::create(7, true);
     RefPtr<TimingFunction> stepsTimingCustom4 = StepsTimingFunction::create(7, false);

     EXPECT_REFV_EQ(stepsTimingCustom1, StepsTimingFunction::create(5, true));
     EXPECT_REFV_EQ(stepsTimingCustom2, StepsTimingFunction::create(5, false));
     EXPECT_REFV_EQ(stepsTimingCustom3, StepsTimingFunction::create(7, true));
     EXPECT_REFV_EQ(stepsTimingCustom4, StepsTimingFunction::create(7, false));

     NE_HELPER(v);
     NE_HELPER_APPEND(v, stepsTimingStart1);
     NE_HELPER_APPEND(v, stepsTimingEnd1);
     NE_HELPER_APPEND(v, stepsTimingCustom1);
     NE_HELPER_APPEND(v, stepsTimingCustom2);
     NE_HELPER_APPEND(v, stepsTimingCustom3);
     NE_HELPER_APPEND(v, stepsTimingCustom4);
     NE_HELPER_LOOP(v);
 }

 TEST_F(TimingFunctionTestHelperTest, StepsOperatorEqReflectivity)
 {
     RefPtr<TimingFunction> stepsA = StepsTimingFunction::preset(StepsTimingFunction::Start);
     RefPtr<TimingFunction> stepsB = StepsTimingFunction::create(1, true);
     EXPECT_REFV_NE(stepsA, stepsB);
     EXPECT_REFV_NE(stepsB, stepsA);
 }

 TEST_F(TimingFunctionTestHelperTest, 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
	/*
	* Copyright (c) 2013, Google Inc. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met:
	*
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following disclaimer
	* in the documentation and/or other materials provided with the
	* distribution.
	* * Neither the name of Google Inc. nor the names of its
	* contributors may be used to endorse or promote products derived from
	* this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "config.h"

	#include "core/platform/animation/TimingFunctionTestHelper.h"

	#include <gmock/gmock.h>
	#include <gtest/gtest.h>
	#include <sstream>
	#include <string>

	// FIXME: Remove once https://codereview.chromium.org/50603011/ lands.
	#define EXPECT_REFV_EQ(a, b) EXPECT_EQ((a.get()), (b.get()))
	#define EXPECT_REFV_NE(a, b) EXPECT_NE((a.get()), (b.get()))

	// Couple of macros to quickly assert a bunch of timing functions are not
	// equal.
	#define NE_STRINGIZE(x) NE_STRINGIZE2(x)
	#define NE_STRINGIZE2(x) #x
	#define NE_HELPER(v) \
	Vector<std::pair<std::string, RefPtr<TimingFunction> > > v;
	#define NE_HELPER_APPEND(v, x) \
	v.append(std::make_pair(std::string("Line " NE_STRINGIZE(__LINE__) ":" # x), x))
	#define NE_HELPER_LOOP(v) \
	for (size_t i = 0; i != v.size(); ++i) { \
	for (size_t j = 0; j != v.size(); ++j) { \
	if (i == j) \
	continue; \
	EXPECT_REFV_NE(v[i].second, v[j].second) \
	<< v[i].first \
	<< " (" << ::testing::PrintToString(*v[i].second.get()) << ")" \
	<< " == " \
	<< v[j].first \
	<< " (" << ::testing::PrintToString(*v[j].second.get()) << ")" \
	<< "\n"; \
	} \
	}

	namespace {

	using namespace WebCore;

	class TimingFunctionTestHelperTest : public ::testing::Test {

	public:
	// Make sure that the CubicBezierTimingFunction call goes via the generic
	// TimingFunction PrintTo.
	::std::string PrintToString(RefPtr<CubicBezierTimingFunction> timing)
	{
	RefPtr<TimingFunction> generic = timing;
	return PrintToString(generic.get());
	}

	::std::string PrintToString(RefPtr<TimingFunction> timing)
	{
	return PrintToString(timing.get());
	}

	::std::string PrintToString(const TimingFunction* timing)
	{
	return ::testing::PrintToString(*timing);
	}
	};

	TEST_F(TimingFunctionTestHelperTest, LinearPrintTo)
	{
	RefPtr<TimingFunction> linearTiming = LinearTimingFunction::create();
	EXPECT_THAT(
	PrintToString(linearTiming),
	::testing::MatchesRegex("LinearTimingFunction@.*"));
	}

	TEST_F(TimingFunctionTestHelperTest, CubicPrintTo)
	{
	RefPtr<TimingFunction> cubicEaseTiming = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
	EXPECT_THAT(
	PrintToString(cubicEaseTiming),
	::testing::MatchesRegex("CubicBezierTimingFunction@.*\\(EaseIn, 0.42, 0, 1, 1\\)"));

	RefPtr<TimingFunction> cubicCustomTiming = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
	EXPECT_THAT(
	PrintToString(cubicCustomTiming),
	::testing::MatchesRegex("CubicBezierTimingFunction@.*\\(Custom, 0.17, 0.67, 1, -1.73\\)"));
	}

	TEST_F(TimingFunctionTestHelperTest, StepPrintTo)
	{
	RefPtr<TimingFunction> stepTimingStart = StepsTimingFunction::preset(StepsTimingFunction::Start);
	EXPECT_THAT(
	PrintToString(stepTimingStart),
	::testing::MatchesRegex("StepsTimingFunction@.*\\(Start, 1, true\\)"));

	RefPtr<TimingFunction> stepTimingCustom = StepsTimingFunction::create(5, false);
	EXPECT_THAT(
	PrintToString(stepTimingCustom),
	::testing::MatchesRegex("StepsTimingFunction@.*\\(Custom, 5, false\\)"));
	}

	TEST_F(TimingFunctionTestHelperTest, ChainedPrintTo)
	{
	RefPtr<TimingFunction> linearTiming = LinearTimingFunction::create();
	RefPtr<ChainedTimingFunction> chainedLinearSingle = ChainedTimingFunction::create();
	chainedLinearSingle->appendSegment(1.0, linearTiming.get());
	EXPECT_THAT(
	PrintToString(chainedLinearSingle),
	::testing::MatchesRegex(
	"ChainedTimingFunction@.*\\("
	"LinearTimingFunction@.*\\[0 -> 1\\]"
	"\\)"));

	RefPtr<TimingFunction> cubicCustomTiming = CubicBezierTimingFunction::create(1.0, 0.0, 1, -1);

	RefPtr<ChainedTimingFunction> chainedMixed = ChainedTimingFunction::create();
	chainedMixed->appendSegment(0.75, chainedLinearSingle.get());
	chainedMixed->appendSegment(1.0, cubicCustomTiming.get());
	EXPECT_THAT(
	PrintToString(chainedMixed),
	::testing::MatchesRegex(
	"ChainedTimingFunction@.*\\("
	"ChainedTimingFunction@.*\\("
	"LinearTimingFunction@.*\\[0 -> 1\\]"
	"\\)\\[0 -> 0.75\\], "
	"CubicBezierTimingFunction@.*\\(Custom, 1, 0, 1, -1\\)\\[0.75 -> 1\\]"
	"\\)"));
	}

	TEST_F(TimingFunctionTestHelperTest, BaseOperatorEq)
	{
	RefPtr<TimingFunction> linearTiming = LinearTimingFunction::create();
	RefPtr<TimingFunction> cubicTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
	RefPtr<TimingFunction> cubicTiming2 = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
	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);
	}

	TEST_F(TimingFunctionTestHelperTest, LinearOperatorEq)
	{
	RefPtr<TimingFunction> linearTiming1 = LinearTimingFunction::create();
	RefPtr<TimingFunction> linearTiming2 = LinearTimingFunction::create();
	EXPECT_REFV_EQ(linearTiming1, linearTiming1);
	EXPECT_REFV_EQ(linearTiming1, linearTiming2);
	}

	TEST_F(TimingFunctionTestHelperTest, CubicOperatorEq)
	{
	RefPtr<TimingFunction> cubicEaseInTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
	RefPtr<TimingFunction> cubicEaseInTiming2 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
	EXPECT_REFV_EQ(cubicEaseInTiming1, cubicEaseInTiming1);
	EXPECT_REFV_EQ(cubicEaseInTiming1, cubicEaseInTiming2);

	RefPtr<TimingFunction> cubicEaseOutTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseOut);
	RefPtr<TimingFunction> cubicEaseOutTiming2 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseOut);
	EXPECT_REFV_EQ(cubicEaseOutTiming1, cubicEaseOutTiming2);

	RefPtr<TimingFunction> cubicEaseInOutTiming1 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseInOut);
	RefPtr<TimingFunction> cubicEaseInOutTiming2 = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseInOut);
	EXPECT_REFV_EQ(cubicEaseInOutTiming1, cubicEaseInOutTiming2);

	RefPtr<TimingFunction> cubicCustomTiming1 = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
	RefPtr<TimingFunction> cubicCustomTiming2 = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
	EXPECT_REFV_EQ(cubicCustomTiming1, cubicCustomTiming2);

	NE_HELPER(v);
	NE_HELPER_APPEND(v, cubicEaseInTiming1);
	NE_HELPER_APPEND(v, cubicEaseOutTiming1);
	NE_HELPER_APPEND(v, cubicEaseInOutTiming1);
	NE_HELPER_APPEND(v, cubicCustomTiming1);
	NE_HELPER_LOOP(v);
	}

	TEST_F(TimingFunctionTestHelperTest, CubicOperatorEqReflectivity)
	{
	RefPtr<TimingFunction> cubicA = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
	RefPtr<TimingFunction> cubicB = CubicBezierTimingFunction::create(0.42, 0.0, 1.0, 1.0);
	EXPECT_REFV_NE(cubicA, cubicB);
	EXPECT_REFV_NE(cubicB, cubicA);
	}

	TEST_F(TimingFunctionTestHelperTest, StepsOperatorEq)
	{
	RefPtr<TimingFunction> stepsTimingStart1 = StepsTimingFunction::preset(StepsTimingFunction::Start);
	RefPtr<TimingFunction> stepsTimingStart2 = StepsTimingFunction::preset(StepsTimingFunction::Start);
	EXPECT_REFV_EQ(stepsTimingStart1, stepsTimingStart1);
	EXPECT_REFV_EQ(stepsTimingStart1, stepsTimingStart2);

	RefPtr<TimingFunction> stepsTimingEnd1 = StepsTimingFunction::preset(StepsTimingFunction::End);
	RefPtr<TimingFunction> stepsTimingEnd2 = StepsTimingFunction::preset(StepsTimingFunction::End);
	EXPECT_REFV_EQ(stepsTimingEnd1, stepsTimingEnd2);

	RefPtr<TimingFunction> stepsTimingCustom1 = StepsTimingFunction::create(5, true);
	RefPtr<TimingFunction> stepsTimingCustom2 = StepsTimingFunction::create(5, false);
	RefPtr<TimingFunction> stepsTimingCustom3 = StepsTimingFunction::create(7, true);
	RefPtr<TimingFunction> stepsTimingCustom4 = StepsTimingFunction::create(7, false);

	EXPECT_REFV_EQ(stepsTimingCustom1, StepsTimingFunction::create(5, true));
	EXPECT_REFV_EQ(stepsTimingCustom2, StepsTimingFunction::create(5, false));
	EXPECT_REFV_EQ(stepsTimingCustom3, StepsTimingFunction::create(7, true));
	EXPECT_REFV_EQ(stepsTimingCustom4, StepsTimingFunction::create(7, false));

	NE_HELPER(v);
	NE_HELPER_APPEND(v, stepsTimingStart1);
	NE_HELPER_APPEND(v, stepsTimingEnd1);
	NE_HELPER_APPEND(v, stepsTimingCustom1);
	NE_HELPER_APPEND(v, stepsTimingCustom2);
	NE_HELPER_APPEND(v, stepsTimingCustom3);
	NE_HELPER_APPEND(v, stepsTimingCustom4);
	NE_HELPER_LOOP(v);
	}

	TEST_F(TimingFunctionTestHelperTest, StepsOperatorEqReflectivity)
	{
	RefPtr<TimingFunction> stepsA = StepsTimingFunction::preset(StepsTimingFunction::Start);
	RefPtr<TimingFunction> stepsB = StepsTimingFunction::create(1, true);
	EXPECT_REFV_NE(stepsA, stepsB);
	EXPECT_REFV_NE(stepsB, stepsA);
	}

	TEST_F(TimingFunctionTestHelperTest, 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