1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/memory/scoped_ptr.h" 6 #include "cc/animation/timing_function.h" 7 #include "cc/blink/web_float_animation_curve_impl.h" 8 #include "testing/gtest/include/gtest/gtest.h" 9 10 using blink::WebCompositorAnimationCurve; 11 using blink::WebFloatAnimationCurve; 12 using blink::WebFloatKeyframe; 13 14 namespace cc_blink { 15 namespace { 16 17 // Tests that a float animation with one keyframe works as expected. 18 TEST(WebFloatAnimationCurveTest, OneFloatKeyframe) { 19 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 20 curve->add(WebFloatKeyframe(0, 2), 21 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 22 EXPECT_FLOAT_EQ(2, curve->getValue(-1)); 23 EXPECT_FLOAT_EQ(2, curve->getValue(0)); 24 EXPECT_FLOAT_EQ(2, curve->getValue(0.5)); 25 EXPECT_FLOAT_EQ(2, curve->getValue(1)); 26 EXPECT_FLOAT_EQ(2, curve->getValue(2)); 27 } 28 29 // Tests that a float animation with two keyframes works as expected. 30 TEST(WebFloatAnimationCurveTest, TwoFloatKeyframe) { 31 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 32 curve->add(WebFloatKeyframe(0, 2), 33 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 34 curve->add(WebFloatKeyframe(1, 4), 35 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 36 EXPECT_FLOAT_EQ(2, curve->getValue(-1)); 37 EXPECT_FLOAT_EQ(2, curve->getValue(0)); 38 EXPECT_FLOAT_EQ(3, curve->getValue(0.5)); 39 EXPECT_FLOAT_EQ(4, curve->getValue(1)); 40 EXPECT_FLOAT_EQ(4, curve->getValue(2)); 41 } 42 43 // Tests that a float animation with three keyframes works as expected. 44 TEST(WebFloatAnimationCurveTest, ThreeFloatKeyframe) { 45 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 46 curve->add(WebFloatKeyframe(0, 2), 47 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 48 curve->add(WebFloatKeyframe(1, 4), 49 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 50 curve->add(WebFloatKeyframe(2, 8), 51 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 52 EXPECT_FLOAT_EQ(2, curve->getValue(-1)); 53 EXPECT_FLOAT_EQ(2, curve->getValue(0)); 54 EXPECT_FLOAT_EQ(3, curve->getValue(0.5)); 55 EXPECT_FLOAT_EQ(4, curve->getValue(1)); 56 EXPECT_FLOAT_EQ(6, curve->getValue(1.5)); 57 EXPECT_FLOAT_EQ(8, curve->getValue(2)); 58 EXPECT_FLOAT_EQ(8, curve->getValue(3)); 59 } 60 61 // Tests that a float animation with multiple keys at a given time works sanely. 62 TEST(WebFloatAnimationCurveTest, RepeatedFloatKeyTimes) { 63 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 64 curve->add(WebFloatKeyframe(0, 4), 65 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 66 curve->add(WebFloatKeyframe(1, 4), 67 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 68 curve->add(WebFloatKeyframe(1, 6), 69 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 70 curve->add(WebFloatKeyframe(2, 6), 71 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 72 73 EXPECT_FLOAT_EQ(4, curve->getValue(-1)); 74 EXPECT_FLOAT_EQ(4, curve->getValue(0)); 75 EXPECT_FLOAT_EQ(4, curve->getValue(0.5)); 76 77 // There is a discontinuity at 1. Any value between 4 and 6 is valid. 78 float value = curve->getValue(1); 79 EXPECT_TRUE(value >= 4 && value <= 6); 80 81 EXPECT_FLOAT_EQ(6, curve->getValue(1.5)); 82 EXPECT_FLOAT_EQ(6, curve->getValue(2)); 83 EXPECT_FLOAT_EQ(6, curve->getValue(3)); 84 } 85 86 // Tests that the keyframes may be added out of order. 87 TEST(WebFloatAnimationCurveTest, UnsortedKeyframes) { 88 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 89 curve->add(WebFloatKeyframe(2, 8), 90 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 91 curve->add(WebFloatKeyframe(0, 2), 92 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 93 curve->add(WebFloatKeyframe(1, 4), 94 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 95 96 EXPECT_FLOAT_EQ(2, curve->getValue(-1)); 97 EXPECT_FLOAT_EQ(2, curve->getValue(0)); 98 EXPECT_FLOAT_EQ(3, curve->getValue(0.5)); 99 EXPECT_FLOAT_EQ(4, curve->getValue(1)); 100 EXPECT_FLOAT_EQ(6, curve->getValue(1.5)); 101 EXPECT_FLOAT_EQ(8, curve->getValue(2)); 102 EXPECT_FLOAT_EQ(8, curve->getValue(3)); 103 } 104 105 // Tests that a cubic bezier timing function works as expected. 106 TEST(WebFloatAnimationCurveTest, CubicBezierTimingFunction) { 107 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 108 curve->add(WebFloatKeyframe(0, 0), 0.25, 0, 0.75, 1); 109 curve->add(WebFloatKeyframe(1, 1), 110 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 111 112 EXPECT_FLOAT_EQ(0, curve->getValue(0)); 113 EXPECT_LT(0, curve->getValue(0.25)); 114 EXPECT_GT(0.25, curve->getValue(0.25)); 115 EXPECT_NEAR(curve->getValue(0.5), 0.5, 0.00015); 116 EXPECT_LT(0.75, curve->getValue(0.75)); 117 EXPECT_GT(1, curve->getValue(0.75)); 118 EXPECT_FLOAT_EQ(1, curve->getValue(1)); 119 } 120 121 // Tests that an ease timing function works as expected. 122 TEST(WebFloatAnimationCurveTest, EaseTimingFunction) { 123 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 124 curve->add(WebFloatKeyframe(0, 0), 125 WebCompositorAnimationCurve::TimingFunctionTypeEase); 126 curve->add(WebFloatKeyframe(1, 1), 127 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 128 129 scoped_ptr<cc::TimingFunction> timing_function( 130 cc::EaseTimingFunction::Create()); 131 for (int i = 0; i <= 4; ++i) { 132 const double time = i * 0.25; 133 EXPECT_FLOAT_EQ(timing_function->GetValue(time), curve->getValue(time)); 134 } 135 } 136 137 // Tests using a linear timing function. 138 TEST(WebFloatAnimationCurveTest, LinearTimingFunction) { 139 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 140 curve->add(WebFloatKeyframe(0, 0), 141 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 142 curve->add(WebFloatKeyframe(1, 1), 143 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 144 145 for (int i = 0; i <= 4; ++i) { 146 const double time = i * 0.25; 147 EXPECT_FLOAT_EQ(time, curve->getValue(time)); 148 } 149 } 150 151 // Tests that an ease in timing function works as expected. 152 TEST(WebFloatAnimationCurveTest, EaseInTimingFunction) { 153 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 154 curve->add(WebFloatKeyframe(0, 0), 155 WebCompositorAnimationCurve::TimingFunctionTypeEaseIn); 156 curve->add(WebFloatKeyframe(1, 1), 157 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 158 159 scoped_ptr<cc::TimingFunction> timing_function( 160 cc::EaseInTimingFunction::Create()); 161 for (int i = 0; i <= 4; ++i) { 162 const double time = i * 0.25; 163 EXPECT_FLOAT_EQ(timing_function->GetValue(time), curve->getValue(time)); 164 } 165 } 166 167 // Tests that an ease in timing function works as expected. 168 TEST(WebFloatAnimationCurveTest, EaseOutTimingFunction) { 169 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 170 curve->add(WebFloatKeyframe(0, 0), 171 WebCompositorAnimationCurve::TimingFunctionTypeEaseOut); 172 curve->add(WebFloatKeyframe(1, 1), 173 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 174 175 scoped_ptr<cc::TimingFunction> timing_function( 176 cc::EaseOutTimingFunction::Create()); 177 for (int i = 0; i <= 4; ++i) { 178 const double time = i * 0.25; 179 EXPECT_FLOAT_EQ(timing_function->GetValue(time), curve->getValue(time)); 180 } 181 } 182 183 // Tests that an ease in timing function works as expected. 184 TEST(WebFloatAnimationCurveTest, EaseInOutTimingFunction) { 185 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 186 curve->add(WebFloatKeyframe(0, 0), 187 WebCompositorAnimationCurve::TimingFunctionTypeEaseInOut); 188 curve->add(WebFloatKeyframe(1, 1), 189 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 190 191 scoped_ptr<cc::TimingFunction> timing_function( 192 cc::EaseInOutTimingFunction::Create()); 193 for (int i = 0; i <= 4; ++i) { 194 const double time = i * 0.25; 195 EXPECT_FLOAT_EQ(timing_function->GetValue(time), curve->getValue(time)); 196 } 197 } 198 199 // Tests that an ease in timing function works as expected. 200 TEST(WebFloatAnimationCurveTest, CustomBezierTimingFunction) { 201 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 202 double x1 = 0.3; 203 double y1 = 0.2; 204 double x2 = 0.8; 205 double y2 = 0.7; 206 curve->add(WebFloatKeyframe(0, 0), x1, y1, x2, y2); 207 curve->add(WebFloatKeyframe(1, 1), 208 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 209 210 scoped_ptr<cc::TimingFunction> timing_function( 211 cc::CubicBezierTimingFunction::Create(x1, y1, x2, y2)); 212 for (int i = 0; i <= 4; ++i) { 213 const double time = i * 0.25; 214 EXPECT_FLOAT_EQ(timing_function->GetValue(time), curve->getValue(time)); 215 } 216 } 217 218 // Tests that the default timing function is indeed ease. 219 TEST(WebFloatAnimationCurveTest, DefaultTimingFunction) { 220 scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl); 221 curve->add(WebFloatKeyframe(0, 0)); 222 curve->add(WebFloatKeyframe(1, 1), 223 WebCompositorAnimationCurve::TimingFunctionTypeLinear); 224 225 scoped_ptr<cc::TimingFunction> timing_function( 226 cc::EaseTimingFunction::Create()); 227 for (int i = 0; i <= 4; ++i) { 228 const double time = i * 0.25; 229 EXPECT_FLOAT_EQ(timing_function->GetValue(time), curve->getValue(time)); 230 } 231 } 232 233 } // namespace 234 } // namespace cc_blink 235
