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// Copyright (c) 2009 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 <sstream>
#include "base/string16.h"
#include "base/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
#if defined(WCHAR_T_IS_UTF32)
// We define a custom operator<< for string16 so we can use it with logging.
// This tests that conversion.
TEST(String16Test, OutputStream) {
// Basic stream test.
{
std::ostringstream stream;
stream << "Empty '" << string16() << "' standard '"
<< string16(ASCIIToUTF16("Hello, world")) << "'";
EXPECT_STREQ("Empty '' standard 'Hello, world'",
stream.str().c_str());
}
// Interesting edge cases.
{
// These should each get converted to the invalid character: EF BF BD.
string16 initial_surrogate;
initial_surrogate.push_back(0xd800);
string16 final_surrogate;
final_surrogate.push_back(0xdc00);
// Old italic A = U+10300, will get converted to: F0 90 8C 80 'z'.
string16 surrogate_pair;
surrogate_pair.push_back(0xd800);
surrogate_pair.push_back(0xdf00);
surrogate_pair.push_back('z');
// Will get converted to the invalid char + 's': EF BF BD 's'.
string16 unterminated_surrogate;
unterminated_surrogate.push_back(0xd800);
unterminated_surrogate.push_back('s');
std::ostringstream stream;
stream << initial_surrogate << "," << final_surrogate << ","
<< surrogate_pair << "," << unterminated_surrogate;
EXPECT_STREQ("\xef\xbf\xbd,\xef\xbf\xbd,\xf0\x90\x8c\x80z,\xef\xbf\xbds",
stream.str().c_str());
}
}
#endif
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