1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
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15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "core/animation/KeyframeEffectModel.h"
33
34#include "core/animation/LegacyStyleInterpolation.h"
35#include "core/animation/animatable/AnimatableLength.h"
36#include "core/animation/animatable/AnimatableUnknown.h"
37#include "core/css/CSSPrimitiveValue.h"
38#include <gtest/gtest.h>
39
40using namespace blink;
41
42namespace {
43
44const double duration = 1.0;
45
46PassRefPtrWillBeRawPtr<AnimatableValue> unknownAnimatableValue(double n)
47{
48    return AnimatableUnknown::create(CSSPrimitiveValue::create(n, CSSPrimitiveValue::CSS_UNKNOWN).get());
49}
50
51PassRefPtrWillBeRawPtr<AnimatableValue> pixelAnimatableValue(double n)
52{
53    return AnimatableLength::create(Length(n, Fixed), 1);
54}
55
56AnimatableValueKeyframeVector keyframesAtZeroAndOne(PassRefPtrWillBeRawPtr<AnimatableValue> zeroValue, PassRefPtrWillBeRawPtr<AnimatableValue> oneValue)
57{
58    AnimatableValueKeyframeVector keyframes(2);
59    keyframes[0] = AnimatableValueKeyframe::create();
60    keyframes[0]->setOffset(0.0);
61    keyframes[0]->setPropertyValue(CSSPropertyLeft, zeroValue.get());
62    keyframes[1] = AnimatableValueKeyframe::create();
63    keyframes[1]->setOffset(1.0);
64    keyframes[1]->setPropertyValue(CSSPropertyLeft, oneValue.get());
65    return keyframes;
66}
67
68void expectProperty(CSSPropertyID property, PassRefPtrWillBeRawPtr<Interpolation> interpolationValue)
69{
70    LegacyStyleInterpolation* interpolation = toLegacyStyleInterpolation(interpolationValue.get());
71    ASSERT_EQ(property, interpolation->id());
72}
73
74void expectDoubleValue(double expectedValue, PassRefPtrWillBeRawPtr<Interpolation> interpolationValue)
75{
76    LegacyStyleInterpolation* interpolation = toLegacyStyleInterpolation(interpolationValue.get());
77    RefPtrWillBeRawPtr<AnimatableValue> value = interpolation->currentValue();
78
79    ASSERT_TRUE(value->isLength() || value->isUnknown());
80
81    double actualValue;
82    if (value->isLength())
83        actualValue = toAnimatableLength(value.get())->length(1, ValueRangeAll).value();
84    else
85        actualValue = toCSSPrimitiveValue(toAnimatableUnknown(value.get())->toCSSValue().get())->getDoubleValue();
86
87    EXPECT_FLOAT_EQ(static_cast<float>(expectedValue), actualValue);
88}
89
90Interpolation* findValue(WillBeHeapVector<RefPtrWillBeMember<Interpolation> >& values, CSSPropertyID id)
91{
92    for (size_t i = 0; i < values.size(); ++i) {
93        LegacyStyleInterpolation* value = toLegacyStyleInterpolation(values.at(i).get());
94        if (value->id() == id)
95            return value;
96    }
97    return 0;
98}
99
100
101TEST(AnimationKeyframeEffectModel, BasicOperation)
102{
103    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(unknownAnimatableValue(3.0), unknownAnimatableValue(5.0));
104    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
105    OwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation> > > values = effect->sample(0, 0.6, duration);
106    ASSERT_EQ(1UL, values->size());
107    expectProperty(CSSPropertyLeft, values->at(0));
108    expectDoubleValue(5.0, values->at(0));
109}
110
111TEST(AnimationKeyframeEffectModel, CompositeReplaceNonInterpolable)
112{
113    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(unknownAnimatableValue(3.0), unknownAnimatableValue(5.0));
114    keyframes[0]->setComposite(AnimationEffect::CompositeReplace);
115    keyframes[1]->setComposite(AnimationEffect::CompositeReplace);
116    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
117    expectDoubleValue(5.0, effect->sample(0, 0.6, duration)->at(0));
118}
119
120TEST(AnimationKeyframeEffectModel, CompositeReplace)
121{
122    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(3.0), pixelAnimatableValue(5.0));
123    keyframes[0]->setComposite(AnimationEffect::CompositeReplace);
124    keyframes[1]->setComposite(AnimationEffect::CompositeReplace);
125    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
126    expectDoubleValue(3.0 * 0.4 + 5.0 * 0.6, effect->sample(0, 0.6, duration)->at(0));
127}
128
129// FIXME: Re-enable this test once compositing of CompositeAdd is supported.
130TEST(AnimationKeyframeEffectModel, DISABLED_CompositeAdd)
131{
132    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(3.0), pixelAnimatableValue(5.0));
133    keyframes[0]->setComposite(AnimationEffect::CompositeAdd);
134    keyframes[1]->setComposite(AnimationEffect::CompositeAdd);
135    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
136    expectDoubleValue((7.0 + 3.0) * 0.4 + (7.0 + 5.0) * 0.6, effect->sample(0, 0.6, duration)->at(0));
137}
138
139TEST(AnimationKeyframeEffectModel, CompositeEaseIn)
140{
141    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(3.0), pixelAnimatableValue(5.0));
142    keyframes[0]->setComposite(AnimationEffect::CompositeReplace);
143    keyframes[0]->setEasing(CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn));
144    keyframes[1]->setComposite(AnimationEffect::CompositeReplace);
145    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
146    expectDoubleValue(3.8579516, effect->sample(0, 0.6, duration)->at(0));
147    expectDoubleValue(3.8582394, effect->sample(0, 0.6, duration * 100)->at(0));
148}
149
150TEST(AnimationKeyframeEffectModel, CompositeCubicBezier)
151{
152    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(3.0), pixelAnimatableValue(5.0));
153    keyframes[0]->setComposite(AnimationEffect::CompositeReplace);
154    keyframes[0]->setEasing(CubicBezierTimingFunction::create(0.42, 0, 0.58, 1));
155    keyframes[1]->setComposite(AnimationEffect::CompositeReplace);
156    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
157    expectDoubleValue(4.3363357, effect->sample(0, 0.6, duration)->at(0));
158    expectDoubleValue(4.3362322, effect->sample(0, 0.6, duration * 1000)->at(0));
159}
160
161TEST(AnimationKeyframeEffectModel, ExtrapolateReplaceNonInterpolable)
162{
163    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(unknownAnimatableValue(3.0), unknownAnimatableValue(5.0));
164    keyframes[0]->setComposite(AnimationEffect::CompositeReplace);
165    keyframes[1]->setComposite(AnimationEffect::CompositeReplace);
166    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
167    expectDoubleValue(5.0, effect->sample(0, 1.6, duration)->at(0));
168}
169
170TEST(AnimationKeyframeEffectModel, ExtrapolateReplace)
171{
172    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(3.0), pixelAnimatableValue(5.0));
173    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
174    keyframes[0]->setComposite(AnimationEffect::CompositeReplace);
175    keyframes[1]->setComposite(AnimationEffect::CompositeReplace);
176    expectDoubleValue(3.0 * -0.6 + 5.0 * 1.6, effect->sample(0, 1.6, duration)->at(0));
177}
178
179// FIXME: Re-enable this test once compositing of CompositeAdd is supported.
180TEST(AnimationKeyframeEffectModel, DISABLED_ExtrapolateAdd)
181{
182    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(3.0), pixelAnimatableValue(5.0));
183    keyframes[0]->setComposite(AnimationEffect::CompositeAdd);
184    keyframes[1]->setComposite(AnimationEffect::CompositeAdd);
185    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
186    expectDoubleValue((7.0 + 3.0) * -0.6 + (7.0 + 5.0) * 1.6, effect->sample(0, 1.6, duration)->at(0));
187}
188
189TEST(AnimationKeyframeEffectModel, ZeroKeyframes)
190{
191    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(AnimatableValueKeyframeVector());
192    EXPECT_TRUE(effect->sample(0, 0.5, duration)->isEmpty());
193}
194
195// FIXME: Re-enable this test once compositing of CompositeAdd is supported.
196TEST(AnimationKeyframeEffectModel, DISABLED_SingleKeyframeAtOffsetZero)
197{
198    AnimatableValueKeyframeVector keyframes(1);
199    keyframes[0] = AnimatableValueKeyframe::create();
200    keyframes[0]->setOffset(0.0);
201    keyframes[0]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(3.0).get());
202
203    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
204    expectDoubleValue(3.0, effect->sample(0, 0.6, duration)->at(0));
205}
206
207// FIXME: Re-enable this test once compositing of CompositeAdd is supported.
208TEST(AnimationKeyframeEffectModel, DISABLED_SingleKeyframeAtOffsetOne)
209{
210    AnimatableValueKeyframeVector keyframes(1);
211    keyframes[0] = AnimatableValueKeyframe::create();
212    keyframes[0]->setOffset(1.0);
213    keyframes[0]->setPropertyValue(CSSPropertyLeft, pixelAnimatableValue(5.0).get());
214
215    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
216    expectDoubleValue(7.0 * 0.4 + 5.0 * 0.6, effect->sample(0, 0.6, duration)->at(0));
217}
218
219TEST(AnimationKeyframeEffectModel, MoreThanTwoKeyframes)
220{
221    AnimatableValueKeyframeVector keyframes(3);
222    keyframes[0] = AnimatableValueKeyframe::create();
223    keyframes[0]->setOffset(0.0);
224    keyframes[0]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(3.0).get());
225    keyframes[1] = AnimatableValueKeyframe::create();
226    keyframes[1]->setOffset(0.5);
227    keyframes[1]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(4.0).get());
228    keyframes[2] = AnimatableValueKeyframe::create();
229    keyframes[2]->setOffset(1.0);
230    keyframes[2]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(5.0).get());
231
232    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
233    expectDoubleValue(4.0, effect->sample(0, 0.3, duration)->at(0));
234    expectDoubleValue(5.0, effect->sample(0, 0.8, duration)->at(0));
235}
236
237TEST(AnimationKeyframeEffectModel, EndKeyframeOffsetsUnspecified)
238{
239    AnimatableValueKeyframeVector keyframes(3);
240    keyframes[0] = AnimatableValueKeyframe::create();
241    keyframes[0]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(3.0).get());
242    keyframes[1] = AnimatableValueKeyframe::create();
243    keyframes[1]->setOffset(0.5);
244    keyframes[1]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(4.0).get());
245    keyframes[2] = AnimatableValueKeyframe::create();
246    keyframes[2]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(5.0).get());
247
248    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
249    expectDoubleValue(3.0, effect->sample(0, 0.1, duration)->at(0));
250    expectDoubleValue(4.0, effect->sample(0, 0.6, duration)->at(0));
251    expectDoubleValue(5.0, effect->sample(0, 0.9, duration)->at(0));
252}
253
254TEST(AnimationKeyframeEffectModel, SampleOnKeyframe)
255{
256    AnimatableValueKeyframeVector keyframes(3);
257    keyframes[0] = AnimatableValueKeyframe::create();
258    keyframes[0]->setOffset(0.0);
259    keyframes[0]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(3.0).get());
260    keyframes[1] = AnimatableValueKeyframe::create();
261    keyframes[1]->setOffset(0.5);
262    keyframes[1]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(4.0).get());
263    keyframes[2] = AnimatableValueKeyframe::create();
264    keyframes[2]->setOffset(1.0);
265    keyframes[2]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(5.0).get());
266
267    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
268    expectDoubleValue(3.0, effect->sample(0, 0.0, duration)->at(0));
269    expectDoubleValue(4.0, effect->sample(0, 0.5, duration)->at(0));
270    expectDoubleValue(5.0, effect->sample(0, 1.0, duration)->at(0));
271}
272
273TEST(AnimationKeyframeEffectModel, MultipleKeyframesWithSameOffset)
274{
275    AnimatableValueKeyframeVector keyframes(9);
276    keyframes[0] = AnimatableValueKeyframe::create();
277    keyframes[0]->setOffset(0.0);
278    keyframes[0]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(0.0).get());
279    keyframes[1] = AnimatableValueKeyframe::create();
280    keyframes[1]->setOffset(0.1);
281    keyframes[1]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(1.0).get());
282    keyframes[2] = AnimatableValueKeyframe::create();
283    keyframes[2]->setOffset(0.1);
284    keyframes[2]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(2.0).get());
285    keyframes[3] = AnimatableValueKeyframe::create();
286    keyframes[3]->setOffset(0.5);
287    keyframes[3]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(3.0).get());
288    keyframes[4] = AnimatableValueKeyframe::create();
289    keyframes[4]->setOffset(0.5);
290    keyframes[4]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(4.0).get());
291    keyframes[5] = AnimatableValueKeyframe::create();
292    keyframes[5]->setOffset(0.5);
293    keyframes[5]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(5.0).get());
294    keyframes[6] = AnimatableValueKeyframe::create();
295    keyframes[6]->setOffset(0.9);
296    keyframes[6]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(6.0).get());
297    keyframes[7] = AnimatableValueKeyframe::create();
298    keyframes[7]->setOffset(0.9);
299    keyframes[7]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(7.0).get());
300    keyframes[8] = AnimatableValueKeyframe::create();
301    keyframes[8]->setOffset(1.0);
302    keyframes[8]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(7.0).get());
303
304    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
305    expectDoubleValue(0.0, effect->sample(0, 0.0, duration)->at(0));
306    expectDoubleValue(2.0, effect->sample(0, 0.2, duration)->at(0));
307    expectDoubleValue(3.0, effect->sample(0, 0.4, duration)->at(0));
308    expectDoubleValue(5.0, effect->sample(0, 0.5, duration)->at(0));
309    expectDoubleValue(5.0, effect->sample(0, 0.6, duration)->at(0));
310    expectDoubleValue(6.0, effect->sample(0, 0.8, duration)->at(0));
311    expectDoubleValue(7.0, effect->sample(0, 1.0, duration)->at(0));
312}
313
314// FIXME: Re-enable this test once compositing of CompositeAdd is supported.
315TEST(AnimationKeyframeEffectModel, DISABLED_PerKeyframeComposite)
316{
317    AnimatableValueKeyframeVector keyframes(2);
318    keyframes[0] = AnimatableValueKeyframe::create();
319    keyframes[0]->setOffset(0.0);
320    keyframes[0]->setPropertyValue(CSSPropertyLeft, pixelAnimatableValue(3.0).get());
321    keyframes[1] = AnimatableValueKeyframe::create();
322    keyframes[1]->setOffset(1.0);
323    keyframes[1]->setPropertyValue(CSSPropertyLeft, pixelAnimatableValue(5.0).get());
324    keyframes[1]->setComposite(AnimationEffect::CompositeAdd);
325
326    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
327    expectDoubleValue(3.0 * 0.4 + (7.0 + 5.0) * 0.6, effect->sample(0, 0.6, duration)->at(0));
328}
329
330TEST(AnimationKeyframeEffectModel, MultipleProperties)
331{
332    AnimatableValueKeyframeVector keyframes(2);
333    keyframes[0] = AnimatableValueKeyframe::create();
334    keyframes[0]->setOffset(0.0);
335    keyframes[0]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(3.0).get());
336    keyframes[0]->setPropertyValue(CSSPropertyRight, unknownAnimatableValue(4.0).get());
337    keyframes[1] = AnimatableValueKeyframe::create();
338    keyframes[1]->setOffset(1.0);
339    keyframes[1]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(5.0).get());
340    keyframes[1]->setPropertyValue(CSSPropertyRight, unknownAnimatableValue(6.0).get());
341
342    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
343    OwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation> > > values = effect->sample(0, 0.6, duration);
344    EXPECT_EQ(2UL, values->size());
345    Interpolation* leftValue = findValue(*values.get(), CSSPropertyLeft);
346    ASSERT_TRUE(leftValue);
347    expectDoubleValue(5.0, leftValue);
348    Interpolation* rightValue = findValue(*values.get(), CSSPropertyRight);
349    ASSERT_TRUE(rightValue);
350    expectDoubleValue(6.0, rightValue);
351}
352
353// FIXME: Re-enable this test once compositing of CompositeAdd is supported.
354TEST(AnimationKeyframeEffectModel, DISABLED_RecompositeCompositableValue)
355{
356    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(3.0), pixelAnimatableValue(5.0));
357    keyframes[0]->setComposite(AnimationEffect::CompositeAdd);
358    keyframes[1]->setComposite(AnimationEffect::CompositeAdd);
359    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
360    OwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation> > > values = effect->sample(0, 0.6, duration);
361    expectDoubleValue((7.0 + 3.0) * 0.4 + (7.0 + 5.0) * 0.6, values->at(0));
362    expectDoubleValue((9.0 + 3.0) * 0.4 + (9.0 + 5.0) * 0.6, values->at(0));
363}
364
365TEST(AnimationKeyframeEffectModel, MultipleIterations)
366{
367    AnimatableValueKeyframeVector keyframes = keyframesAtZeroAndOne(pixelAnimatableValue(1.0), pixelAnimatableValue(3.0));
368    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
369    expectDoubleValue(2.0, effect->sample(0, 0.5, duration)->at(0));
370    expectDoubleValue(2.0, effect->sample(1, 0.5, duration)->at(0));
371    expectDoubleValue(2.0, effect->sample(2, 0.5, duration)->at(0));
372}
373
374// FIXME: Re-enable this test once compositing of CompositeAdd is supported.
375TEST(AnimationKeyframeEffectModel, DISABLED_DependsOnUnderlyingValue)
376{
377    AnimatableValueKeyframeVector keyframes(3);
378    keyframes[0] = AnimatableValueKeyframe::create();
379    keyframes[0]->setOffset(0.0);
380    keyframes[0]->setPropertyValue(CSSPropertyLeft, pixelAnimatableValue(1.0).get());
381    keyframes[0]->setComposite(AnimationEffect::CompositeAdd);
382    keyframes[1] = AnimatableValueKeyframe::create();
383    keyframes[1]->setOffset(0.5);
384    keyframes[1]->setPropertyValue(CSSPropertyLeft, pixelAnimatableValue(1.0).get());
385    keyframes[2] = AnimatableValueKeyframe::create();
386    keyframes[2]->setOffset(1.0);
387    keyframes[2]->setPropertyValue(CSSPropertyLeft, pixelAnimatableValue(1.0).get());
388
389    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
390    EXPECT_TRUE(effect->sample(0, 0, duration)->at(0));
391    EXPECT_TRUE(effect->sample(0, 0.1, duration)->at(0));
392    EXPECT_TRUE(effect->sample(0, 0.25, duration)->at(0));
393    EXPECT_TRUE(effect->sample(0, 0.4, duration)->at(0));
394    EXPECT_FALSE(effect->sample(0, 0.5, duration)->at(0));
395    EXPECT_FALSE(effect->sample(0, 0.6, duration)->at(0));
396    EXPECT_FALSE(effect->sample(0, 0.75, duration)->at(0));
397    EXPECT_FALSE(effect->sample(0, 0.8, duration)->at(0));
398    EXPECT_FALSE(effect->sample(0, 1, duration)->at(0));
399}
400
401TEST(AnimationKeyframeEffectModel, AddSyntheticKeyframes)
402{
403    AnimatableValueKeyframeVector keyframes(1);
404    keyframes[0] = AnimatableValueKeyframe::create();
405    keyframes[0]->setOffset(0.5);
406    keyframes[0]->setPropertyValue(CSSPropertyLeft, unknownAnimatableValue(4.0).get());
407
408    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
409    const AnimatableValuePropertySpecificKeyframeVector& propertySpecificKeyframes = effect->getPropertySpecificKeyframes(CSSPropertyLeft);
410    EXPECT_EQ(3U, propertySpecificKeyframes.size());
411    EXPECT_DOUBLE_EQ(0.0, propertySpecificKeyframes[0]->offset());
412    EXPECT_DOUBLE_EQ(0.5, propertySpecificKeyframes[1]->offset());
413    EXPECT_DOUBLE_EQ(1.0, propertySpecificKeyframes[2]->offset());
414}
415
416TEST(AnimationKeyframeEffectModel, ToKeyframeEffectModel)
417{
418    AnimatableValueKeyframeVector keyframes(0);
419    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
420
421    AnimationEffect* baseEffect = effect.get();
422    EXPECT_TRUE(toAnimatableValueKeyframeEffectModel(baseEffect));
423}
424
425} // namespace
426
427namespace blink {
428
429class KeyframeEffectModelTest : public ::testing::Test {
430public:
431    static KeyframeVector normalizedKeyframes(const KeyframeVector& keyframes)
432    {
433        return KeyframeEffectModelBase::normalizedKeyframes(keyframes);
434    }
435};
436
437TEST_F(KeyframeEffectModelTest, EvenlyDistributed1)
438{
439    KeyframeVector keyframes(5);
440    keyframes[0] = AnimatableValueKeyframe::create();
441    keyframes[0]->setOffset(0.125);
442    keyframes[1] = AnimatableValueKeyframe::create();
443    keyframes[2] = AnimatableValueKeyframe::create();
444    keyframes[3] = AnimatableValueKeyframe::create();
445    keyframes[4] = AnimatableValueKeyframe::create();
446    keyframes[4]->setOffset(0.625);
447
448    const KeyframeVector result = normalizedKeyframes(keyframes);
449    EXPECT_EQ(5U, result.size());
450    EXPECT_DOUBLE_EQ(0.125, result[0]->offset());
451    EXPECT_DOUBLE_EQ(0.25, result[1]->offset());
452    EXPECT_DOUBLE_EQ(0.375, result[2]->offset());
453    EXPECT_DOUBLE_EQ(0.5, result[3]->offset());
454    EXPECT_DOUBLE_EQ(0.625, result[4]->offset());
455}
456
457TEST_F(KeyframeEffectModelTest, EvenlyDistributed2)
458{
459    KeyframeVector keyframes(6);
460    keyframes[0] = AnimatableValueKeyframe::create();
461    keyframes[1] = AnimatableValueKeyframe::create();
462    keyframes[2] = AnimatableValueKeyframe::create();
463    keyframes[3] = AnimatableValueKeyframe::create();
464    keyframes[3]->setOffset(0.75);
465    keyframes[4] = AnimatableValueKeyframe::create();
466    keyframes[5] = AnimatableValueKeyframe::create();
467
468    const KeyframeVector result = normalizedKeyframes(keyframes);
469    EXPECT_EQ(6U, result.size());
470    EXPECT_DOUBLE_EQ(0.0, result[0]->offset());
471    EXPECT_DOUBLE_EQ(0.25, result[1]->offset());
472    EXPECT_DOUBLE_EQ(0.5, result[2]->offset());
473    EXPECT_DOUBLE_EQ(0.75, result[3]->offset());
474    EXPECT_DOUBLE_EQ(0.875, result[4]->offset());
475    EXPECT_DOUBLE_EQ(1.0, result[5]->offset());
476}
477
478TEST_F(KeyframeEffectModelTest, EvenlyDistributed3)
479{
480    KeyframeVector keyframes(12);
481    keyframes[0] = AnimatableValueKeyframe::create();
482    keyframes[0]->setOffset(0);
483    keyframes[1] = AnimatableValueKeyframe::create();
484    keyframes[2] = AnimatableValueKeyframe::create();
485    keyframes[3] = AnimatableValueKeyframe::create();
486    keyframes[4] = AnimatableValueKeyframe::create();
487    keyframes[4]->setOffset(0.5);
488    keyframes[5] = AnimatableValueKeyframe::create();
489    keyframes[6] = AnimatableValueKeyframe::create();
490    keyframes[7] = AnimatableValueKeyframe::create();
491    keyframes[7]->setOffset(0.8);
492    keyframes[8] = AnimatableValueKeyframe::create();
493    keyframes[9] = AnimatableValueKeyframe::create();
494    keyframes[10] = AnimatableValueKeyframe::create();
495    keyframes[11] = AnimatableValueKeyframe::create();
496
497    const KeyframeVector result = normalizedKeyframes(keyframes);
498    EXPECT_EQ(12U, result.size());
499    EXPECT_DOUBLE_EQ(0.0, result[0]->offset());
500    EXPECT_DOUBLE_EQ(0.125, result[1]->offset());
501    EXPECT_DOUBLE_EQ(0.25, result[2]->offset());
502    EXPECT_DOUBLE_EQ(0.375, result[3]->offset());
503    EXPECT_DOUBLE_EQ(0.5, result[4]->offset());
504    EXPECT_DOUBLE_EQ(0.6, result[5]->offset());
505    EXPECT_DOUBLE_EQ(0.7, result[6]->offset());
506    EXPECT_DOUBLE_EQ(0.8, result[7]->offset());
507    EXPECT_DOUBLE_EQ(0.85, result[8]->offset());
508    EXPECT_DOUBLE_EQ(0.9, result[9]->offset());
509    EXPECT_DOUBLE_EQ(0.95, result[10]->offset());
510    EXPECT_DOUBLE_EQ(1.0, result[11]->offset());
511}
512
513} // namespace blink
514