1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
// Copyright (c) 2010 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/basictypes.h"
#include "base/logging.h"
#include "base/string_piece.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
const wchar_t* const kConvertRoundtripCases[] = {
L"Google Video",
// "网页 图片 资讯更多 »"
L"\x7f51\x9875\x0020\x56fe\x7247\x0020\x8d44\x8baf\x66f4\x591a\x0020\x00bb",
// "Παγκόσμιος Ιστός"
L"\x03a0\x03b1\x03b3\x03ba\x03cc\x03c3\x03bc\x03b9"
L"\x03bf\x03c2\x0020\x0399\x03c3\x03c4\x03cc\x03c2",
// "Поиск страниц на русском"
L"\x041f\x043e\x0438\x0441\x043a\x0020\x0441\x0442"
L"\x0440\x0430\x043d\x0438\x0446\x0020\x043d\x0430"
L"\x0020\x0440\x0443\x0441\x0441\x043a\x043e\x043c",
// "전체서비스"
L"\xc804\xccb4\xc11c\xbe44\xc2a4",
// Test characters that take more than 16 bits. This will depend on whether
// wchar_t is 16 or 32 bits.
#if defined(WCHAR_T_IS_UTF16)
L"\xd800\xdf00",
// ????? (Mathematical Alphanumeric Symbols (U+011d40 - U+011d44 : A,B,C,D,E)
L"\xd807\xdd40\xd807\xdd41\xd807\xdd42\xd807\xdd43\xd807\xdd44",
#elif defined(WCHAR_T_IS_UTF32)
L"\x10300",
// ????? (Mathematical Alphanumeric Symbols (U+011d40 - U+011d44 : A,B,C,D,E)
L"\x11d40\x11d41\x11d42\x11d43\x11d44",
#endif
};
} // namespace
TEST(UTFStringConversionsTest, ConvertUTF8AndWide) {
// we round-trip all the wide strings through UTF-8 to make sure everything
// agrees on the conversion. This uses the stream operators to test them
// simultaneously.
for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
std::ostringstream utf8;
utf8 << WideToUTF8(kConvertRoundtripCases[i]);
std::wostringstream wide;
wide << UTF8ToWide(utf8.str());
EXPECT_EQ(kConvertRoundtripCases[i], wide.str());
}
}
TEST(UTFStringConversionsTest, ConvertUTF8AndWideEmptyString) {
// An empty std::wstring should be converted to an empty std::string,
// and vice versa.
std::wstring wempty;
std::string empty;
EXPECT_EQ(empty, WideToUTF8(wempty));
EXPECT_EQ(wempty, UTF8ToWide(empty));
}
TEST(UTFStringConversionsTest, ConvertUTF8ToWide) {
struct UTF8ToWideCase {
const char* utf8;
const wchar_t* wide;
bool success;
} convert_cases[] = {
// Regular UTF-8 input.
{"\xe4\xbd\xa0\xe5\xa5\xbd", L"\x4f60\x597d", true},
// Non-character is passed through.
{"\xef\xbf\xbfHello", L"\xffffHello", true},
// Truncated UTF-8 sequence.
{"\xe4\xa0\xe5\xa5\xbd", L"\xfffd\x597d", false},
// Truncated off the end.
{"\xe5\xa5\xbd\xe4\xa0", L"\x597d\xfffd", false},
// Non-shortest-form UTF-8.
{"\xf0\x84\xbd\xa0\xe5\xa5\xbd", L"\xfffd\x597d", false},
// This UTF-8 character decodes to a UTF-16 surrogate, which is illegal.
{"\xed\xb0\x80", L"\xfffd", false},
// Non-BMP characters. The second is a non-character regarded as valid.
// The result will either be in UTF-16 or UTF-32.
#if defined(WCHAR_T_IS_UTF16)
{"A\xF0\x90\x8C\x80z", L"A\xd800\xdf00z", true},
{"A\xF4\x8F\xBF\xBEz", L"A\xdbff\xdffez", true},
#elif defined(WCHAR_T_IS_UTF32)
{"A\xF0\x90\x8C\x80z", L"A\x10300z", true},
{"A\xF4\x8F\xBF\xBEz", L"A\x10fffez", true},
#endif
};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(convert_cases); i++) {
std::wstring converted;
EXPECT_EQ(convert_cases[i].success,
UTF8ToWide(convert_cases[i].utf8,
strlen(convert_cases[i].utf8),
&converted));
std::wstring expected(convert_cases[i].wide);
EXPECT_EQ(expected, converted);
}
// Manually test an embedded NULL.
std::wstring converted;
EXPECT_TRUE(UTF8ToWide("\00Z\t", 3, &converted));
ASSERT_EQ(3U, converted.length());
EXPECT_EQ(static_cast<wchar_t>(0), converted[0]);
EXPECT_EQ('Z', converted[1]);
EXPECT_EQ('\t', converted[2]);
// Make sure that conversion replaces, not appends.
EXPECT_TRUE(UTF8ToWide("B", 1, &converted));
ASSERT_EQ(1U, converted.length());
EXPECT_EQ('B', converted[0]);
}
#if defined(WCHAR_T_IS_UTF16)
// This test is only valid when wchar_t == UTF-16.
TEST(UTFStringConversionsTest, ConvertUTF16ToUTF8) {
struct WideToUTF8Case {
const wchar_t* utf16;
const char* utf8;
bool success;
} convert_cases[] = {
// Regular UTF-16 input.
{L"\x4f60\x597d", "\xe4\xbd\xa0\xe5\xa5\xbd", true},
// Test a non-BMP character.
{L"\xd800\xdf00", "\xF0\x90\x8C\x80", true},
// Non-characters are passed through.
{L"\xffffHello", "\xEF\xBF\xBFHello", true},
{L"\xdbff\xdffeHello", "\xF4\x8F\xBF\xBEHello", true},
// The first character is a truncated UTF-16 character.
{L"\xd800\x597d", "\xef\xbf\xbd\xe5\xa5\xbd", false},
// Truncated at the end.
{L"\x597d\xd800", "\xe5\xa5\xbd\xef\xbf\xbd", false},
};
for (int i = 0; i < arraysize(convert_cases); i++) {
std::string converted;
EXPECT_EQ(convert_cases[i].success,
WideToUTF8(convert_cases[i].utf16,
wcslen(convert_cases[i].utf16),
&converted));
std::string expected(convert_cases[i].utf8);
EXPECT_EQ(expected, converted);
}
}
#elif defined(WCHAR_T_IS_UTF32)
// This test is only valid when wchar_t == UTF-32.
TEST(UTFStringConversionsTest, ConvertUTF32ToUTF8) {
struct WideToUTF8Case {
const wchar_t* utf32;
const char* utf8;
bool success;
} convert_cases[] = {
// Regular 16-bit input.
{L"\x4f60\x597d", "\xe4\xbd\xa0\xe5\xa5\xbd", true},
// Test a non-BMP character.
{L"A\x10300z", "A\xF0\x90\x8C\x80z", true},
// Non-characters are passed through.
{L"\xffffHello", "\xEF\xBF\xBFHello", true},
{L"\x10fffeHello", "\xF4\x8F\xBF\xBEHello", true},
// Invalid Unicode code points.
{L"\xfffffffHello", "\xEF\xBF\xBDHello", false},
// The first character is a truncated UTF-16 character.
{L"\xd800\x597d", "\xef\xbf\xbd\xe5\xa5\xbd", false},
{L"\xdc01Hello", "\xef\xbf\xbdHello", false},
};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(convert_cases); i++) {
std::string converted;
EXPECT_EQ(convert_cases[i].success,
WideToUTF8(convert_cases[i].utf32,
wcslen(convert_cases[i].utf32),
&converted));
std::string expected(convert_cases[i].utf8);
EXPECT_EQ(expected, converted);
}
}
#endif // defined(WCHAR_T_IS_UTF32)
TEST(UTFStringConversionsTest, ConvertMultiString) {
static wchar_t wmulti[] = {
L'f', L'o', L'o', L'\0',
L'b', L'a', L'r', L'\0',
L'b', L'a', L'z', L'\0',
L'\0'
};
static char multi[] = {
'f', 'o', 'o', '\0',
'b', 'a', 'r', '\0',
'b', 'a', 'z', '\0',
'\0'
};
std::wstring wmultistring;
memcpy(WriteInto(&wmultistring, arraysize(wmulti)), wmulti, sizeof(wmulti));
EXPECT_EQ(arraysize(wmulti) - 1, wmultistring.length());
std::string expected;
memcpy(WriteInto(&expected, arraysize(multi)), multi, sizeof(multi));
EXPECT_EQ(arraysize(multi) - 1, expected.length());
const std::string& converted = WideToUTF8(wmultistring);
EXPECT_EQ(arraysize(multi) - 1, converted.length());
EXPECT_EQ(expected, converted);
}
} // base
|
