Upstream version 11.40.277.0
[platform/framework/web/crosswalk.git] / src / base / strings / string16_unittest.cc
1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <sstream>
6
7 #include "base/strings/string16.h"
8
9 #include "base/strings/utf_string_conversions.h"
10 #include "testing/gtest/include/gtest/gtest.h"
11
12 namespace base {
13
14 #if defined(WCHAR_T_IS_UTF32)
15
16 // We define a custom operator<< for string16 so we can use it with logging.
17 // This tests that conversion.
18 TEST(String16Test, OutputStream) {
19   // Basic stream test.
20   {
21     std::ostringstream stream;
22     stream << "Empty '" << string16() << "' standard '"
23            << string16(ASCIIToUTF16("Hello, world")) << "'";
24     EXPECT_STREQ("Empty '' standard 'Hello, world'",
25                  stream.str().c_str());
26   }
27
28   // Interesting edge cases.
29   {
30     // These should each get converted to the invalid character: EF BF BD.
31     string16 initial_surrogate;
32     initial_surrogate.push_back(0xd800);
33     string16 final_surrogate;
34     final_surrogate.push_back(0xdc00);
35
36     // Old italic A = U+10300, will get converted to: F0 90 8C 80 'z'.
37     string16 surrogate_pair;
38     surrogate_pair.push_back(0xd800);
39     surrogate_pair.push_back(0xdf00);
40     surrogate_pair.push_back('z');
41
42     // Will get converted to the invalid char + 's': EF BF BD 's'.
43     string16 unterminated_surrogate;
44     unterminated_surrogate.push_back(0xd800);
45     unterminated_surrogate.push_back('s');
46
47     std::ostringstream stream;
48     stream << initial_surrogate << "," << final_surrogate << ","
49            << surrogate_pair << "," << unterminated_surrogate;
50
51     EXPECT_STREQ("\xef\xbf\xbd,\xef\xbf\xbd,\xf0\x90\x8c\x80z,\xef\xbf\xbds",
52                  stream.str().c_str());
53   }
54 }
55
56 #endif
57
58 }  // namespace base