Fix HTMLToken::Attribute::value handling in AtomicHTMLToken

third_party/WebKit/Source/core/html/parser/CompactHTMLTokenTest.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/html/parser/CompactHTMLToken.h"
+
+#include <gtest/gtest.h>
+
+namespace blink {
+
+TEST(CompactHTMLTokenTest, EmptyAttributeValueFromHTMLToken)
+{
+    HTMLToken token;
+    token.beginStartTag('a');
+    token.addNewAttribute();
+    token.beginAttributeName(3);
+    token.appendToAttributeName('b');
+    token.endAttributeName(4);
+    token.addNewAttribute();
+    token.beginAttributeName(5);
+    token.appendToAttributeName('c');
+    token.endAttributeName(6);
+    token.beginAttributeValue(8);
+    token.endAttributeValue(8);
+
+    CompactHTMLToken ctoken(&token, TextPosition());
+
+    const CompactHTMLToken::Attribute* attributeB = ctoken.getAttributeItem(
+        QualifiedName(AtomicString(), "b", AtomicString()));
+    ASSERT_TRUE(attributeB);
+    EXPECT_FALSE(attributeB->value.isNull());
+    EXPECT_TRUE(attributeB->value.isEmpty());
+
+    const CompactHTMLToken::Attribute* attributeC = ctoken.getAttributeItem(
+        QualifiedName(AtomicString(), "c", AtomicString()));
+    ASSERT_TRUE(attributeC);
+    EXPECT_FALSE(attributeC->value.isNull());
+    EXPECT_TRUE(attributeC->value.isEmpty());
+
+    const CompactHTMLToken::Attribute* attributeD = ctoken.getAttributeItem(
+        QualifiedName(AtomicString(), "d", AtomicString()));
+    EXPECT_FALSE(attributeD);
+}
+
+} // namespace blink