1 // Copyright (c) 2011 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 <stddef.h>
6
7 #include <string>
8
9 #include "base/macros.h"
10 #include "base/strings/string_piece.h"
11 #include "base/strings/sys_string_conversions.h"
12 #include "base/strings/utf_string_conversions.h"
13 #include "base/test/scoped_locale.h"
14 #include "build/build_config.h"
15 #include "testing/gtest/include/gtest/gtest.h"
16
17 #ifdef WCHAR_T_IS_UTF32
18 static const std::wstring kSysWideOldItalicLetterA = L"\x10300";
19 #else
20 static const std::wstring kSysWideOldItalicLetterA = L"\xd800\xdf00";
21 #endif
22
23 namespace base {
24
TEST(SysStrings,SysWideToUTF8)25 TEST(SysStrings, SysWideToUTF8) {
26 EXPECT_EQ("Hello, world", SysWideToUTF8(L"Hello, world"));
27 EXPECT_EQ("\xe4\xbd\xa0\xe5\xa5\xbd", SysWideToUTF8(L"\x4f60\x597d"));
28
29 // >16 bits
30 EXPECT_EQ("\xF0\x90\x8C\x80", SysWideToUTF8(kSysWideOldItalicLetterA));
31
32 // Error case. When Windows finds a UTF-16 character going off the end of
33 // a string, it just converts that literal value to UTF-8, even though this
34 // is invalid.
35 //
36 // This is what XP does, but Vista has different behavior, so we don't bother
37 // verifying it:
38 // EXPECT_EQ("\xE4\xBD\xA0\xED\xA0\x80zyxw",
39 // SysWideToUTF8(L"\x4f60\xd800zyxw"));
40
41 // Test embedded NULLs.
42 std::wstring wide_null(L"a");
43 wide_null.push_back(0);
44 wide_null.push_back('b');
45
46 std::string expected_null("a");
47 expected_null.push_back(0);
48 expected_null.push_back('b');
49
50 EXPECT_EQ(expected_null, SysWideToUTF8(wide_null));
51 }
52
TEST(SysStrings,SysUTF8ToWide)53 TEST(SysStrings, SysUTF8ToWide) {
54 EXPECT_EQ(L"Hello, world", SysUTF8ToWide("Hello, world"));
55 EXPECT_EQ(L"\x4f60\x597d", SysUTF8ToWide("\xe4\xbd\xa0\xe5\xa5\xbd"));
56 // >16 bits
57 EXPECT_EQ(kSysWideOldItalicLetterA, SysUTF8ToWide("\xF0\x90\x8C\x80"));
58
59 // Error case. When Windows finds an invalid UTF-8 character, it just skips
60 // it. This seems weird because it's inconsistent with the reverse conversion.
61 //
62 // This is what XP does, but Vista has different behavior, so we don't bother
63 // verifying it:
64 // EXPECT_EQ(L"\x4f60zyxw", SysUTF8ToWide("\xe4\xbd\xa0\xe5\xa5zyxw"));
65
66 // Test embedded NULLs.
67 std::string utf8_null("a");
68 utf8_null.push_back(0);
69 utf8_null.push_back('b');
70
71 std::wstring expected_null(L"a");
72 expected_null.push_back(0);
73 expected_null.push_back('b');
74
75 EXPECT_EQ(expected_null, SysUTF8ToWide(utf8_null));
76 }
77
78 #if defined(OS_LINUX) // Tests depend on setting a specific Linux locale.
79
TEST(SysStrings,SysWideToNativeMB)80 TEST(SysStrings, SysWideToNativeMB) {
81 #if !defined(SYSTEM_NATIVE_UTF8)
82 ScopedLocale locale("en_US.UTF-8");
83 #endif
84 EXPECT_EQ("Hello, world", SysWideToNativeMB(L"Hello, world"));
85 EXPECT_EQ("\xe4\xbd\xa0\xe5\xa5\xbd", SysWideToNativeMB(L"\x4f60\x597d"));
86
87 // >16 bits
88 EXPECT_EQ("\xF0\x90\x8C\x80", SysWideToNativeMB(kSysWideOldItalicLetterA));
89
90 // Error case. When Windows finds a UTF-16 character going off the end of
91 // a string, it just converts that literal value to UTF-8, even though this
92 // is invalid.
93 //
94 // This is what XP does, but Vista has different behavior, so we don't bother
95 // verifying it:
96 // EXPECT_EQ("\xE4\xBD\xA0\xED\xA0\x80zyxw",
97 // SysWideToNativeMB(L"\x4f60\xd800zyxw"));
98
99 // Test embedded NULLs.
100 std::wstring wide_null(L"a");
101 wide_null.push_back(0);
102 wide_null.push_back('b');
103
104 std::string expected_null("a");
105 expected_null.push_back(0);
106 expected_null.push_back('b');
107
108 EXPECT_EQ(expected_null, SysWideToNativeMB(wide_null));
109 }
110
111 // We assume the test is running in a UTF8 locale.
TEST(SysStrings,SysNativeMBToWide)112 TEST(SysStrings, SysNativeMBToWide) {
113 #if !defined(SYSTEM_NATIVE_UTF8)
114 ScopedLocale locale("en_US.UTF-8");
115 #endif
116 EXPECT_EQ(L"Hello, world", SysNativeMBToWide("Hello, world"));
117 EXPECT_EQ(L"\x4f60\x597d", SysNativeMBToWide("\xe4\xbd\xa0\xe5\xa5\xbd"));
118 // >16 bits
119 EXPECT_EQ(kSysWideOldItalicLetterA, SysNativeMBToWide("\xF0\x90\x8C\x80"));
120
121 // Error case. When Windows finds an invalid UTF-8 character, it just skips
122 // it. This seems weird because it's inconsistent with the reverse conversion.
123 //
124 // This is what XP does, but Vista has different behavior, so we don't bother
125 // verifying it:
126 // EXPECT_EQ(L"\x4f60zyxw", SysNativeMBToWide("\xe4\xbd\xa0\xe5\xa5zyxw"));
127
128 // Test embedded NULLs.
129 std::string utf8_null("a");
130 utf8_null.push_back(0);
131 utf8_null.push_back('b');
132
133 std::wstring expected_null(L"a");
134 expected_null.push_back(0);
135 expected_null.push_back('b');
136
137 EXPECT_EQ(expected_null, SysNativeMBToWide(utf8_null));
138 }
139
140 static const wchar_t* const kConvertRoundtripCases[] = {
141 L"Google Video",
142 // "网页 图片 资讯更多 »"
143 L"\x7f51\x9875\x0020\x56fe\x7247\x0020\x8d44\x8baf\x66f4\x591a\x0020\x00bb",
144 // "Παγκόσμιος Ιστός"
145 L"\x03a0\x03b1\x03b3\x03ba\x03cc\x03c3\x03bc\x03b9"
146 L"\x03bf\x03c2\x0020\x0399\x03c3\x03c4\x03cc\x03c2",
147 // "Поиск страниц на русском"
148 L"\x041f\x043e\x0438\x0441\x043a\x0020\x0441\x0442"
149 L"\x0440\x0430\x043d\x0438\x0446\x0020\x043d\x0430"
150 L"\x0020\x0440\x0443\x0441\x0441\x043a\x043e\x043c",
151 // "전체서비스"
152 L"\xc804\xccb4\xc11c\xbe44\xc2a4",
153
154 // Test characters that take more than 16 bits. This will depend on whether
155 // wchar_t is 16 or 32 bits.
156 #if defined(WCHAR_T_IS_UTF16)
157 L"\xd800\xdf00",
158 // ????? (Mathematical Alphanumeric Symbols (U+011d40 - U+011d44 : A,B,C,D,E)
159 L"\xd807\xdd40\xd807\xdd41\xd807\xdd42\xd807\xdd43\xd807\xdd44",
160 #elif defined(WCHAR_T_IS_UTF32)
161 L"\x10300",
162 // ????? (Mathematical Alphanumeric Symbols (U+011d40 - U+011d44 : A,B,C,D,E)
163 L"\x11d40\x11d41\x11d42\x11d43\x11d44",
164 #endif
165 };
166
167
TEST(SysStrings,SysNativeMBAndWide)168 TEST(SysStrings, SysNativeMBAndWide) {
169 #if !defined(SYSTEM_NATIVE_UTF8)
170 ScopedLocale locale("en_US.UTF-8");
171 #endif
172 for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
173 std::wstring wide = kConvertRoundtripCases[i];
174 std::wstring trip = SysNativeMBToWide(SysWideToNativeMB(wide));
175 EXPECT_EQ(wide.size(), trip.size());
176 EXPECT_EQ(wide, trip);
177 }
178
179 // We assume our test is running in UTF-8, so double check through ICU.
180 for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
181 std::wstring wide = kConvertRoundtripCases[i];
182 std::wstring trip = SysNativeMBToWide(WideToUTF8(wide));
183 EXPECT_EQ(wide.size(), trip.size());
184 EXPECT_EQ(wide, trip);
185 }
186
187 for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
188 std::wstring wide = kConvertRoundtripCases[i];
189 std::wstring trip = UTF8ToWide(SysWideToNativeMB(wide));
190 EXPECT_EQ(wide.size(), trip.size());
191 EXPECT_EQ(wide, trip);
192 }
193 }
194 #endif // OS_LINUX
195
196 } // namespace base
197