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-rw-r--r--app/multi_animation_unittest.cc36
1 files changed, 36 insertions, 0 deletions
diff --git a/app/multi_animation_unittest.cc b/app/multi_animation_unittest.cc
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+++ b/app/multi_animation_unittest.cc
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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());
+}