Fix parseHTMLInteger

third_party/WebKit/Source/core/html/parser/HTMLParserIdiomsTest.cpp

 // Copyright 2016 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/html/parser/HTMLParserIdioms.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 namespace {
 
+TEST(HTMLParserIdiomsTest, ParseHTMLInteger) {
+  int value = 0;
+
+  EXPECT_TRUE(parseHTMLInteger("2147483646", value));
+  EXPECT_EQ(2147483646, value);
+  EXPECT_TRUE(parseHTMLInteger("2147483647", value));
+  EXPECT_EQ(2147483647, value);
+  value = 12345;
+  EXPECT_FALSE(parseHTMLInteger("2147483648", value));
+  EXPECT_EQ(12345, value);
+
+  EXPECT_TRUE(parseHTMLInteger("-2147483647", value));
+  EXPECT_EQ(-2147483647, value);
+  EXPECT_TRUE(parseHTMLInteger("-2147483648", value));
+  EXPECT_EQ(0 - 2147483648, value);
+  value = 12345;
+  EXPECT_FALSE(parseHTMLInteger("-2147483649", value));
+  EXPECT_EQ(12345, value);
+}
+
 TEST(HTMLParserIdiomsTest, ParseHTMLNonNegativeInteger) {
   unsigned value = 0;
 
   EXPECT_TRUE(parseHTMLNonNegativeInteger("0", value));
   EXPECT_EQ(0U, value);
 
   EXPECT_TRUE(parseHTMLNonNegativeInteger("+0", value));
   EXPECT_EQ(0U, value);
 
   EXPECT_TRUE(parseHTMLNonNegativeInteger("-0", value));
@@ skipping 21 matching lines @@
 }
 
 TEST(HTMLParserIdiomsTest, ParseHTMLListOfFloatingPointNumbers_null) {
   Vector<double> numbers = parseHTMLListOfFloatingPointNumbers(nullAtom);
   EXPECT_EQ(0u, numbers.size());
 }
 
 }  // namespace
 
 }  // namespace blink