| // Copyright 2013 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 "base/strings/nullable_string16.h" | 
 | #include "base/strings/utf_string_conversions.h" | 
 | #include "testing/gtest/include/gtest/gtest.h" | 
 |  | 
 | namespace base { | 
 |  | 
 | TEST(NullableString16Test, DefaultConstructor) { | 
 |   NullableString16 s; | 
 |   EXPECT_TRUE(s.is_null()); | 
 |   EXPECT_EQ(string16(), s.string()); | 
 | } | 
 |  | 
 | TEST(NullableString16Test, Equals) { | 
 |   NullableString16 a(ASCIIToUTF16("hello"), false); | 
 |   NullableString16 b(ASCIIToUTF16("hello"), false); | 
 |   EXPECT_EQ(a, b); | 
 | } | 
 |  | 
 | TEST(NullableString16Test, NotEquals) { | 
 |   NullableString16 a(ASCIIToUTF16("hello"), false); | 
 |   NullableString16 b(ASCIIToUTF16("world"), false); | 
 |   EXPECT_NE(a, b); | 
 | } | 
 |  | 
 | TEST(NullableString16Test, NotEqualsNull) { | 
 |   NullableString16 a(ASCIIToUTF16("hello"), false); | 
 |   NullableString16 b; | 
 |   EXPECT_NE(a, b); | 
 | } | 
 |  | 
 | }  // namespace base |