Web Animations API: Implement step-middle and steps(x, middle) timing functions.

Source/platform/animation/TimingFunctionTestHelperTest.cpp

-/*
- * 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 "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("linear"));
-}
-
-TEST_F(TimingFunctionTestHelperTest, CubicPrintTo)
-{
-    RefPtr<TimingFunction> cubicEaseTiming = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
-    EXPECT_THAT(
-        PrintToString(cubicEaseTiming),
-        ::testing::MatchesRegex("ease-in"));
-
-    RefPtr<TimingFunction> cubicCustomTiming = CubicBezierTimingFunction::create(0.17, 0.67, 1, -1.73);
-    EXPECT_THAT(
-        PrintToString(cubicCustomTiming),
-        ::testing::MatchesRegex("cubic-bezier\\(0.17, 0.67, 1, -1.73\\)"));
-}
-
-TEST_F(TimingFunctionTestHelperTest, StepPrintTo)
-{
-    RefPtr<TimingFunction> stepTimingStart = StepsTimingFunction::preset(StepsTimingFunction::Start);
-    EXPECT_THAT(
-        PrintToString(stepTimingStart),
-        ::testing::MatchesRegex("step-start"));
-
-    RefPtr<TimingFunction> stepTimingCustom = StepsTimingFunction::create(5, false);
-    EXPECT_THAT(
-        PrintToString(stepTimingCustom),
-        ::testing::MatchesRegex("steps\\(5, end\\)"));
-}
-
-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(
-            "chained\\("
-                "linear\\[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(
-            "chained\\("
-                "chained\\("
-                    "linear\\[0 -> 1\\]"
-                "\\)\\[0 -> 0.75\\], "
-                "cubic-bezier\\(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