text: // Copyright 2014 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 "core/animation/animatable/AnimatableLength.h"
  
  #include "platform/CalculationValue.h"
  #include "testing/gtest/include/gtest/gtest.h"
  
  namespace blink {
  
  namespace {
  
  PassRefPtr<AnimatableLength> create(const Length& length, double zoom = 1)
  {
      return AnimatableLength::create(length, zoom);
  }
  
  } // anonymous namespace
  
  TEST(AnimationAnimatableLengthTest, RoundTripConversion)
  {
      EXPECT_EQ(Length(0, Fixed), create(Length(0, Fixed))->getLength(1, ValueRangeAll));
      EXPECT_EQ(Length(0, Percent), create(Length(0, Percent))->getLength(1, ValueRangeAll));
      EXPECT_EQ(Length(10, Fixed), create(Length(10, Fixed))->getLength(1, ValueRangeAll));
      EXPECT_EQ(Length(10, Percent), create(Length(10, Percent))->getLength(1, ValueRangeAll));
      EXPECT_EQ(Length(-10, Fixed), create(Length(-10, Fixed))->getLength(1, ValueRangeAll));
      EXPECT_EQ(Length(-10, Percent), create(Length(-10, Percent))->getLength(1, ValueRangeAll));
      Length calc = Length(CalculationValue::create(PixelsAndPercent(5, 10), ValueRangeAll));
      EXPECT_EQ(calc, create(calc)->getLength(1, ValueRangeAll));
  }
  
  TEST(AnimationAnimatableLengthTest, ValueRangeNonNegative)
  {
      EXPECT_EQ(Length(10, Fixed), create(Length(10, Fixed))->getLength(1, ValueRangeNonNegative));
      EXPECT_EQ(Length(10, Percent), create(Length(10, Percent))->getLength(1, ValueRangeNonNegative));
      EXPECT_EQ(Length(0, Fixed), create(Length(-10, Fixed))->getLength(1, ValueRangeNonNegative));
      EXPECT_EQ(Length(0, Percent), create(Length(-10, Percent))->getLength(1, ValueRangeNonNegative));
      Length calc = Length(CalculationValue::create(PixelsAndPercent(-5, -10), ValueRangeNonNegative));
      EXPECT_TRUE(calc == create(calc)->getLength(1, ValueRangeNonNegative));
  }
  
  TEST(AnimationAnimatableLengthTest, Zoom)
  {
      EXPECT_EQ(Length(4, Fixed), create(Length(10, Fixed), 5)->getLength(2, ValueRangeAll));
      EXPECT_EQ(Length(10, Percent), create(Length(10, Percent), 5)->getLength(2, ValueRangeAll));
      Length calc = Length(CalculationValue::create(PixelsAndPercent(5, 10), ValueRangeAll));
      Length result = Length(CalculationValue::create(PixelsAndPercent(2, 10), ValueRangeAll));
      EXPECT_TRUE(result == create(calc, 5)->getLength(2, ValueRangeAll));
  }
  
  TEST(AnimationAnimatableLengthTest, Equals)
  {
      EXPECT_TRUE(create(Length(10, Fixed))->equals(create(Length(10, Fixed)).get()));
      EXPECT_TRUE(create(Length(20, Percent))->equals(create(Length(20, Percent)).get()));
      EXPECT_FALSE(create(Length(10, Fixed))->equals(create(Length(10, Percent)).get()));
      EXPECT_FALSE(create(Length(0, Percent))->equals(create(Length(0, Fixed)).get()));
      Length calc = Length(CalculationValue::create(PixelsAndPercent(5, 10), ValueRangeAll));
      EXPECT_TRUE(create(calc)->equals(create(calc).get()));
      EXPECT_FALSE(create(calc)->equals(create(Length(10, Percent)).get()));
  }
  
  TEST(AnimationAnimatableLengthTest, Interpolate)
  {
      EXPECT_TRUE(AnimatableValue::interpolate(create(Length(10, Fixed)).get(), create(Length(0, Fixed)).get(), 0.2)->equals(create(Length(8, Fixed)).get()));
      EXPECT_TRUE(AnimatableValue::interpolate(create(Length(4, Percent)).get(), create(Length(12, Percent)).get(), 0.25)->equals(create(Length(6, Percent)).get()));
      Length calc = Length(CalculationValue::create(PixelsAndPercent(12, 4), ValueRangeAll));
      EXPECT_TRUE(AnimatableValue::interpolate(create(Length(20, Fixed)).get(), create(Length(10, Percent)).get(), 0.4)->equals(create(calc).get()));
  }
  
  } // namespace blink
  