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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "app/multi_animation.h"
#include "testing/gtest/include/gtest/gtest.h"
typedef testing::Test MultiAnimationTest;
TEST_F(MultiAnimationTest, Basic) {
// Create a MultiAnimation with two parts.
MultiAnimation::Parts parts;
parts.push_back(MultiAnimation::Part(100, Tween::LINEAR));
parts.push_back(MultiAnimation::Part(100, Tween::EASE_OUT));
MultiAnimation animation(parts);
AnimationContainer::Element* as_element =
static_cast<AnimationContainer::Element*>(&animation);
as_element->SetStartTime(base::TimeTicks());
// Step to 50, which is half way through the first part.
as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(50));
EXPECT_EQ(.5, animation.GetCurrentValue());
// Step to 120, which is 20% through the second part.
as_element->Step(base::TimeTicks() +
base::TimeDelta::FromMilliseconds(120));
EXPECT_EQ(Tween::CalculateValue(Tween::EASE_OUT, .2),
animation.GetCurrentValue());
// Step to 320, which is 20% through the second part.
as_element->Step(base::TimeTicks() +
base::TimeDelta::FromMilliseconds(320));
EXPECT_EQ(Tween::CalculateValue(Tween::EASE_OUT, .2),
animation.GetCurrentValue());
}
TEST_F(MultiAnimationTest, DifferingStartAndEnd) {
// Create a MultiAnimation with two parts.
MultiAnimation::Parts parts;
parts.push_back(MultiAnimation::Part(200, Tween::LINEAR));
parts[0].start_time_ms = 100;
parts[0].end_time_ms = 400;
MultiAnimation animation(parts);
AnimationContainer::Element* as_element =
static_cast<AnimationContainer::Element*>(&animation);
as_element->SetStartTime(base::TimeTicks());
// Step to 0. Because the start_time is 100, this should be 100ms into the
// animation
as_element->Step(base::TimeTicks());
EXPECT_EQ(.25, animation.GetCurrentValue());
// Step to 100, which is effectively 200ms into the animation.
as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(100));
EXPECT_EQ(.5, animation.GetCurrentValue());
}
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