123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211 |
- // 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 "butil/basictypes.h"
- #include "butil/logging.h"
- #include "butil/strings/string_piece.h"
- #include "butil/strings/string_util.h"
- #include "butil/strings/utf_string_conversions.h"
- #include <gtest/gtest.h>
- namespace butil {
- 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);
- }
- } // namespace butil
|