1 // Copyright (c) 2011 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 "ui/gfx/animation/multi_animation.h"
6
7 #include "testing/gtest/include/gtest/gtest.h"
8 #include "ui/gfx/animation/animation_container_element.h"
9
10 namespace gfx {
11
TEST(MultiAnimationTest,Basic)12 TEST(MultiAnimationTest, Basic) {
13 // Create a MultiAnimation with two parts.
14 MultiAnimation::Parts parts;
15 parts.push_back(MultiAnimation::Part(100, Tween::LINEAR));
16 parts.push_back(MultiAnimation::Part(100, Tween::EASE_OUT));
17
18 MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
19 AnimationContainerElement* as_element =
20 static_cast<AnimationContainerElement*>(&animation);
21 as_element->SetStartTime(base::TimeTicks());
22
23 // Step to 50, which is half way through the first part.
24 as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(50));
25 EXPECT_EQ(.5, animation.GetCurrentValue());
26
27 // Step to 120, which is 20% through the second part.
28 as_element->Step(base::TimeTicks() +
29 base::TimeDelta::FromMilliseconds(120));
30 EXPECT_DOUBLE_EQ(Tween::CalculateValue(Tween::EASE_OUT, .2),
31 animation.GetCurrentValue());
32
33 // Step to 320, which is 20% through the second part.
34 as_element->Step(base::TimeTicks() +
35 base::TimeDelta::FromMilliseconds(320));
36 EXPECT_DOUBLE_EQ(Tween::CalculateValue(Tween::EASE_OUT, .2),
37 animation.GetCurrentValue());
38 }
39
TEST(MultiAnimationTest,DifferingStartAndEnd)40 TEST(MultiAnimationTest, DifferingStartAndEnd) {
41 // Create a MultiAnimation with two parts.
42 MultiAnimation::Parts parts;
43 parts.push_back(MultiAnimation::Part(200, Tween::LINEAR));
44 parts[0].start_time_ms = 100;
45 parts[0].end_time_ms = 400;
46
47 MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
48 AnimationContainerElement* as_element =
49 static_cast<AnimationContainerElement*>(&animation);
50 as_element->SetStartTime(base::TimeTicks());
51
52 // Step to 0. Because the start_time is 100, this should be 100ms into the
53 // animation
54 as_element->Step(base::TimeTicks());
55 EXPECT_EQ(.25, animation.GetCurrentValue());
56
57 // Step to 100, which is effectively 200ms into the animation.
58 as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(100));
59 EXPECT_EQ(.5, animation.GetCurrentValue());
60 }
61
62 // Makes sure multi-animation stops if cycles is false.
TEST(MultiAnimationTest,DontCycle)63 TEST(MultiAnimationTest, DontCycle) {
64 MultiAnimation::Parts parts;
65 parts.push_back(MultiAnimation::Part(200, Tween::LINEAR));
66 MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
67 AnimationContainerElement* as_element =
68 static_cast<AnimationContainerElement*>(&animation);
69 as_element->SetStartTime(base::TimeTicks());
70 animation.set_continuous(false);
71
72 // Step to 300, which is greater than the cycle time.
73 as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(300));
74 EXPECT_EQ(1.0, animation.GetCurrentValue());
75 EXPECT_FALSE(animation.is_animating());
76 }
77
78 // Makes sure multi-animation cycles correctly.
TEST(MultiAnimationTest,Cycle)79 TEST(MultiAnimationTest, Cycle) {
80 MultiAnimation::Parts parts;
81 parts.push_back(MultiAnimation::Part(200, Tween::LINEAR));
82 MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
83 AnimationContainerElement* as_element =
84 static_cast<AnimationContainerElement*>(&animation);
85 as_element->SetStartTime(base::TimeTicks());
86
87 // Step to 300, which is greater than the cycle time.
88 as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(300));
89 EXPECT_EQ(.5, animation.GetCurrentValue());
90 }
91
92 } // namespace gfx
93