CSSValue Immediates: Change CSSValue to an object instead of a pointer

Source/core/css/CSSValueTest.cpp

+// Copyright 2015 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/css/CSSValue.h"
+
+#include "core/css/CSSPrimitiveValue.h"
+#include "core/css/CSSValueTestHelper.h"
+#include <gtest/gtest.h>
+
+using namespace blink;
+
+namespace {
+
+// Helper functions since PassRefPtrWillBeRawPtr cannot be a member variable.
+CSSValue makeCSSValueWithPassRefPtr(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> primitiveValue)
+{
+    return CSSValue(primitiveValue);
+}
+NullableCSSValue makeNullableCSSValueWithPassRefPtr(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> primitiveValue)
+{
+    return NullableCSSValue(primitiveValue);
+}
+
+TEST(CSSValueTest, CSSValueTest)
+{
+    RefPtrWillBeRawPtr<CSSPrimitiveValue> primitiveValueRef = CSSPrimitiveValue::createIdentifier(CSSValueBold);
+
+    CSSValue passRefPtrConstructor = makeCSSValueWithPassRefPtr(CSSPrimitiveValue::createIdentifier(CSSValueBold));
+    EXPECT_STREQ("bold", passRefPtrConstructor.cssText().utf8().data());
+
+    CSSValue refPtrConstructor(primitiveValueRef);
+    EXPECT_STREQ("bold", refPtrConstructor.cssText().utf8().data());
+
+    CSSValue copyConstructor(refPtrConstructor);
+    EXPECT_STREQ("bold", copyConstructor.cssText().utf8().data());
+
+    CSSValue constCopyConstructor(*const_cast<const CSSValue*>(&refPtrConstructor));
+    EXPECT_STREQ("bold", constCopyConstructor.cssText().utf8().data());
+
+    CSSValue newAssignmentOperator = refPtrConstructor;
+    EXPECT_STREQ("bold", newAssignmentOperator.cssText().utf8().data());
+    EXPECT_STREQ("bold", refPtrConstructor.cssText().utf8().data());
+
+    CSSValue existingAssignmentOperator(primitiveValueRef);
+    existingAssignmentOperator = passRefPtrConstructor;
+    EXPECT_STREQ("bold", existingAssignmentOperator.cssText().utf8().data());
+    EXPECT_STREQ("bold", refPtrConstructor.cssText().utf8().data());
+
+    CSSValue selfAssignmentOperator(primitiveValueRef);
+    selfAssignmentOperator = refPtrConstructor;
+    EXPECT_STREQ("bold", selfAssignmentOperator.cssText().utf8().data());
+    EXPECT_STREQ("bold", refPtrConstructor.cssText().utf8().data());
+}
+
+TEST(CSSValueTest, NullableCSSValueTest)
+{
+    RefPtrWillBeRawPtr<CSSPrimitiveValue> primitiveValueRef = CSSPrimitiveValue::createIdentifier(CSSValueBold);
+
+    NullableCSSValue defaultConstructor;
+    EXPECT_FALSE(defaultConstructor);
+
+    NullableCSSValue nullPtrConstructor(nullptr);
+    EXPECT_FALSE(nullPtrConstructor);
+
+    NullableCSSValue passRefPtrConstructor = makeNullableCSSValueWithPassRefPtr(CSSPrimitiveValue::createIdentifier(CSSValueBold));
+    EXPECT_STREQ("bold", passRefPtrConstructor->cssText().utf8().data());
+
+    NullableCSSValue refPtrConstructor(primitiveValueRef);
+    EXPECT_STREQ("bold", refPtrConstructor->cssText().utf8().data());
+
+    NullableCSSValue copyConstructor(refPtrConstructor);
+    EXPECT_STREQ("bold", copyConstructor->cssText().utf8().data());
+
+    NullableCSSValue constCopyConstructor(*const_cast<const NullableCSSValue*>(&refPtrConstructor));
+    EXPECT_STREQ("bold", constCopyConstructor->cssText().utf8().data());
+
+    NullableCSSValue nullCopyConstructor(nullPtrConstructor);
+    EXPECT_FALSE(nullCopyConstructor);
+
+    NullableCSSValue nullConstCopyConstructor(*const_cast<const NullableCSSValue*>(&nullPtrConstructor));
+    EXPECT_FALSE(nullConstCopyConstructor);
+
+    CSSValue cssValue(primitiveValueRef);
+    NullableCSSValue cssValueCopyConstructor(cssValue);
+    EXPECT_STREQ("bold", cssValueCopyConstructor->cssText().utf8().data());
+
+    const CSSValue constCssValue(primitiveValueRef);
+    NullableCSSValue constCssValueCopyConstructor(constCssValue);
+    EXPECT_STREQ("bold", constCssValueCopyConstructor->cssText().utf8().data());
+}
+
+} // namespace