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Diffstat (limited to 'base/utf8_test.cpp')
| -rw-r--r-- | base/utf8_test.cpp | 488 |
1 files changed, 0 insertions, 488 deletions
diff --git a/base/utf8_test.cpp b/base/utf8_test.cpp deleted file mode 100644 index 472e82c635..0000000000 --- a/base/utf8_test.cpp +++ /dev/null @@ -1,488 +0,0 @@ -/* -* Copyright (C) 2015 The Android Open Source Project -* -* Licensed under the Apache License, Version 2.0 (the "License"); -* you may not use this file except in compliance with the License. -* You may obtain a copy of the License at -* -* http://www.apache.org/licenses/LICENSE-2.0 -* -* Unless required by applicable law or agreed to in writing, software -* distributed under the License is distributed on an "AS IS" BASIS, -* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -* See the License for the specific language governing permissions and -* limitations under the License. -*/ - -#include "android-base/utf8.h" - -#include <gtest/gtest.h> - -#include <fcntl.h> -#include <stdlib.h> - -#include "android-base/file.h" -#include "android-base/macros.h" -#include "android-base/unique_fd.h" - -namespace android { -namespace base { - -TEST(UTFStringConversionsTest, ConvertInvalidUTF8) { - std::wstring wide; - - errno = 0; - - // Standalone \xa2 is an invalid UTF-8 sequence, so this should return an - // error. Concatenate two C/C++ literal string constants to prevent the - // compiler from giving an error about "\xa2af" containing a "hex escape - // sequence out of range". - EXPECT_FALSE(android::base::UTF8ToWide("before\xa2" "after", &wide)); - - EXPECT_EQ(EILSEQ, errno); - - // Even if an invalid character is encountered, UTF8ToWide() should still do - // its best to convert the rest of the string. sysdeps_win32.cpp: - // _console_write_utf8() depends on this behavior. - // - // Thus, we verify that the valid characters are converted, but we ignore the - // specific replacement character that UTF8ToWide() may replace the invalid - // UTF-8 characters with because we want to allow that to change if the - // implementation changes. - EXPECT_EQ(0U, wide.find(L"before")); - const wchar_t after_wide[] = L"after"; - EXPECT_EQ(wide.length() - (arraysize(after_wide) - 1), wide.find(after_wide)); -} - -// Below is adapted from https://chromium.googlesource.com/chromium/src/+/master/base/strings/utf_string_conversions_unittest.cc - -// 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. - -// The tests below from utf_string_conversions_unittest.cc check for this -// preprocessor symbol, so define it, as it is appropriate for Windows. -#define WCHAR_T_IS_UTF16 -static_assert(sizeof(wchar_t) == 2, "wchar_t is not 2 bytes"); - -// The tests below from utf_string_conversions_unittest.cc call versions of -// UTF8ToWide() and WideToUTF8() that don't return success/failure, so these are -// stub implementations with that signature. These are just for testing and -// should not be moved to base because they assert/expect no errors which is -// probably not a good idea (or at least it is something that should be left -// up to the caller, not a base library). - -static std::wstring UTF8ToWide(const std::string& utf8) { - std::wstring utf16; - EXPECT_TRUE(UTF8ToWide(utf8, &utf16)); - return utf16; -} - -static std::string WideToUTF8(const std::wstring& utf16) { - std::string utf8; - EXPECT_TRUE(WideToUTF8(utf16, &utf8)); - return utf8; -} - -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. - // Note that for whatever reason, this test fails on Windows XP. - {"\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(convert_cases); i++) { - std::wstring converted; - errno = 0; - const bool success = UTF8ToWide(convert_cases[i].utf8, - strlen(convert_cases[i].utf8), - &converted); - EXPECT_EQ(convert_cases[i].success, success); - // The original test always compared expected and converted, but don't do - // that because our implementation of UTF8ToWide() does not guarantee to - // produce the same output in error situations. - if (success) { - std::wstring expected(convert_cases[i].wide); - EXPECT_EQ(expected, converted); - } else { - EXPECT_EQ(EILSEQ, errno); - } - } - - // 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. - // Note that for whatever reason, this test fails on Windows XP. - {L"\xd800\x597d", "\xef\xbf\xbd\xe5\xa5\xbd", -#if (WINVER >= 0x0600) - // Only Vista and later has a new API/flag that correctly returns false. - false -#else - true -#endif - }, - // Truncated at the end. - // Note that for whatever reason, this test fails on Windows XP. - {L"\x597d\xd800", "\xe5\xa5\xbd\xef\xbf\xbd", -#if (WINVER >= 0x0600) - // Only Vista and later has a new API/flag that correctly returns false. - false -#else - true -#endif - }, - }; - - for (size_t i = 0; i < arraysize(convert_cases); i++) { - std::string converted; - errno = 0; - const bool success = WideToUTF8(convert_cases[i].utf16, - wcslen(convert_cases[i].utf16), - &converted); - EXPECT_EQ(convert_cases[i].success, success); - // The original test always compared expected and converted, but don't do - // that because our implementation of WideToUTF8() does not guarantee to - // produce the same output in error situations. - if (success) { - std::string expected(convert_cases[i].utf8); - EXPECT_EQ(expected, converted); - } else { - EXPECT_EQ(EILSEQ, errno); - } - } -} - -#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(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) - -// The test below uses these types and functions, so just do enough to get the -// test running. -typedef wchar_t char16; -typedef std::wstring string16; - -template<typename T> -static void* WriteInto(T* t, size_t size) { - // std::(w)string::resize() already includes space for a NULL terminator. - t->resize(size - 1); - return &(*t)[0]; -} - -// A stub implementation that calls a helper from above, just to get the test -// below working. This is just for testing and should not be moved to base -// because this ignores errors which is probably not a good idea, plus it takes -// a string16 type which we don't really have. -static std::string UTF16ToUTF8(const string16& utf16) { - return WideToUTF8(utf16); -} - -TEST(UTFStringConversionsTest, ConvertMultiString) { - static char16 multi16[] = { - 'f', 'o', 'o', '\0', - 'b', 'a', 'r', '\0', - 'b', 'a', 'z', '\0', - '\0' - }; - static char multi[] = { - 'f', 'o', 'o', '\0', - 'b', 'a', 'r', '\0', - 'b', 'a', 'z', '\0', - '\0' - }; - string16 multistring16; - memcpy(WriteInto(&multistring16, arraysize(multi16)), multi16, - sizeof(multi16)); - EXPECT_EQ(arraysize(multi16) - 1, multistring16.length()); - std::string expected; - memcpy(WriteInto(&expected, arraysize(multi)), multi, sizeof(multi)); - EXPECT_EQ(arraysize(multi) - 1, expected.length()); - const std::string& converted = UTF16ToUTF8(multistring16); - EXPECT_EQ(arraysize(multi) - 1, converted.length()); - EXPECT_EQ(expected, converted); -} - -// The tests below from sys_string_conversions_unittest.cc call SysWideToUTF8() -// and SysUTF8ToWide(), so these are stub implementations that call the helpers -// above. These are just for testing and should not be moved to base because -// they ignore errors which is probably not a good idea. - -static std::string SysWideToUTF8(const std::wstring& utf16) { - return WideToUTF8(utf16); -} - -static std::wstring SysUTF8ToWide(const std::string& utf8) { - return UTF8ToWide(utf8); -} - -// Below is adapted from https://chromium.googlesource.com/chromium/src/+/master/base/strings/sys_string_conversions_unittest.cc - -// Copyright (c) 2011 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. - -#ifdef WCHAR_T_IS_UTF32 -static const std::wstring kSysWideOldItalicLetterA = L"\x10300"; -#else -static const std::wstring kSysWideOldItalicLetterA = L"\xd800\xdf00"; -#endif - -TEST(SysStrings, SysWideToUTF8) { - EXPECT_EQ("Hello, world", SysWideToUTF8(L"Hello, world")); - EXPECT_EQ("\xe4\xbd\xa0\xe5\xa5\xbd", SysWideToUTF8(L"\x4f60\x597d")); - - // >16 bits - EXPECT_EQ("\xF0\x90\x8C\x80", SysWideToUTF8(kSysWideOldItalicLetterA)); - - // Error case. When Windows finds a UTF-16 character going off the end of - // a string, it just converts that literal value to UTF-8, even though this - // is invalid. - // - // This is what XP does, but Vista has different behavior, so we don't bother - // verifying it: - // EXPECT_EQ("\xE4\xBD\xA0\xED\xA0\x80zyxw", - // SysWideToUTF8(L"\x4f60\xd800zyxw")); - - // Test embedded NULLs. - std::wstring wide_null(L"a"); - wide_null.push_back(0); - wide_null.push_back('b'); - - std::string expected_null("a"); - expected_null.push_back(0); - expected_null.push_back('b'); - - EXPECT_EQ(expected_null, SysWideToUTF8(wide_null)); -} - -TEST(SysStrings, SysUTF8ToWide) { - EXPECT_EQ(L"Hello, world", SysUTF8ToWide("Hello, world")); - EXPECT_EQ(L"\x4f60\x597d", SysUTF8ToWide("\xe4\xbd\xa0\xe5\xa5\xbd")); - // >16 bits - EXPECT_EQ(kSysWideOldItalicLetterA, SysUTF8ToWide("\xF0\x90\x8C\x80")); - - // Error case. When Windows finds an invalid UTF-8 character, it just skips - // it. This seems weird because it's inconsistent with the reverse conversion. - // - // This is what XP does, but Vista has different behavior, so we don't bother - // verifying it: - // EXPECT_EQ(L"\x4f60zyxw", SysUTF8ToWide("\xe4\xbd\xa0\xe5\xa5zyxw")); - - // Test embedded NULLs. - std::string utf8_null("a"); - utf8_null.push_back(0); - utf8_null.push_back('b'); - - std::wstring expected_null(L"a"); - expected_null.push_back(0); - expected_null.push_back('b'); - - EXPECT_EQ(expected_null, SysUTF8ToWide(utf8_null)); -} - -TEST(UTF8PathToWindowsLongPathTest, DontAddPrefixIfShorterThanMaxPath) { - std::string utf8 = "c:\\mypath\\myfile.txt"; - - std::wstring wide; - EXPECT_TRUE(UTF8PathToWindowsLongPath(utf8.c_str(), &wide)); - - EXPECT_EQ(std::string::npos, wide.find(LR"(\\?\)")); -} - -TEST(UTF8PathToWindowsLongPathTest, AddPrefixIfLongerThanMaxPath) { - std::string utf8 = "c:\\mypath"; - while (utf8.length() < 300 /* MAX_PATH is 260 */) { - utf8 += "\\mypathsegment"; - } - - std::wstring wide; - EXPECT_TRUE(UTF8PathToWindowsLongPath(utf8.c_str(), &wide)); - - EXPECT_EQ(0U, wide.find(LR"(\\?\)")); - EXPECT_EQ(std::string::npos, wide.find(L"/")); -} - -TEST(UTF8PathToWindowsLongPathTest, AddPrefixAndFixSeparatorsIfLongerThanMaxPath) { - std::string utf8 = "c:/mypath"; - while (utf8.length() < 300 /* MAX_PATH is 260 */) { - utf8 += "/mypathsegment"; - } - - std::wstring wide; - EXPECT_TRUE(UTF8PathToWindowsLongPath(utf8.c_str(), &wide)); - - EXPECT_EQ(0U, wide.find(LR"(\\?\)")); - EXPECT_EQ(std::string::npos, wide.find(L"/")); -} - -namespace utf8 { - -TEST(Utf8FilesTest, CanCreateOpenAndDeleteFileWithLongPath) { - TemporaryDir td; - - // Create long directory path - std::string utf8 = td.path; - while (utf8.length() < 300 /* MAX_PATH is 260 */) { - utf8 += "\\mypathsegment"; - EXPECT_EQ(0, mkdir(utf8.c_str(), 0)); - } - - // Create file - utf8 += "\\test-file.bin"; - int flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY; - int mode = 0666; - android::base::unique_fd fd(open(utf8.c_str(), flags, mode)); - EXPECT_NE(-1, fd.get()); - - // Close file - fd.reset(); - EXPECT_EQ(-1, fd.get()); - - // Open file with fopen - FILE* file = fopen(utf8.c_str(), "rb"); - EXPECT_NE(nullptr, file); - - if (file) { - fclose(file); - } - - // Delete file - EXPECT_EQ(0, unlink(utf8.c_str())); -} - -} // namespace utf8 -} // namespace base -} // namespace android |