Web Animations API: Deferred computation of interpolated values

Source/core/animation/LegacyStyleInterpolationTest.cpp

+// 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 "config.h"
+#include "core/animation/LegacyStyleInterpolation.h"
+
+#include "core/css/CSSInheritedValue.h"
+#include "core/css/CSSPrimitiveValue.h"
+#include "core/css/StylePropertySet.h"
+
+#include <gtest/gtest.h>
+
+namespace WebCore {
+
+bool testValue(CSSValue& value)
+{
+    return LegacyStyleInterpolation::interpolationRequiresStyleResolve(value);
+}
+
+bool testValue(CSSPropertyID id, const char* string)
+{
+    RefPtrWillBeRawPtr<MutableStylePropertySet> propertySet = MutableStylePropertySet::create();
+    propertySet->setProperty(id, string);
+    return testValue(*propertySet->getPropertyCSSValue(id));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, Inherit)
+{
+    EXPECT_TRUE(testValue(*CSSInheritedValue::create()));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, FontUnits)
+{
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2em"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2ex"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2rem"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2ch"));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, ViewportUnits)
+{
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2vw"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2vh"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2vmin"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "2vmax"));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, FixedUnits)
+{
+    EXPECT_FALSE(testValue(CSSPropertyZIndex, "2"));
+    EXPECT_FALSE(testValue(CSSPropertyLeft, "2px"));
+    EXPECT_FALSE(testValue(CSSPropertyLeft, "2cm"));
+    EXPECT_FALSE(testValue(CSSPropertyLeft, "2in"));
+
+    RefPtrWillBeRawPtr<CSSPrimitiveValue> rotation = CSSPrimitiveValue::create(2, CSSPrimitiveValue::CSS_DEG);
+    EXPECT_FALSE(testValue(*rotation));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, Calc)
+{
+    EXPECT_FALSE(testValue(CSSPropertyLeft, "calc(5px + 30%%)"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "calc(5px + 30em)"));
+    EXPECT_FALSE(testValue(CSSPropertyLeft, "calc(2 * 5px - 10%% + (4 * 20in) / 6)"));
+    EXPECT_TRUE(testValue(CSSPropertyLeft, "calc(2 * 5px - 10%% + (4 * 20vw) / 6)"));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, Percent)
+{
+    EXPECT_FALSE(testValue(CSSPropertyLeft, "2%%"));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, Color)
+{
+    EXPECT_FALSE(testValue(CSSPropertyColor, "red"));
+    EXPECT_FALSE(testValue(CSSPropertyColor, "rgb(1, 2, 3)"));
+    EXPECT_TRUE(testValue(CSSPropertyColor, "currentcolor"));
+}
+
+TEST(AnimationLegacyStyleInterpolationTest, FontWeight)
+{
+    EXPECT_FALSE(testValue(CSSPropertyFontWeight, "400"));
+    EXPECT_FALSE(testValue(CSSPropertyFontWeight, "bold"));
+    EXPECT_TRUE(testValue(CSSPropertyFontWeight, "lighter"));
+}
+
+}