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67 lines
1.9 KiB
67 lines
1.9 KiB
4 months ago
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// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <sstream>
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#include <unordered_set>
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#include "base/strings/string16.h"
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#include "base/strings/utf_string_conversions.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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// We define a custom operator<< for string16 so we can use it with logging.
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// This tests that conversion.
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TEST(String16Test, OutputStream) {
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// Basic stream test.
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{
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std::ostringstream stream;
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stream << "Empty '" << string16() << "' standard '"
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<< string16(ASCIIToUTF16("Hello, world")) << "'";
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EXPECT_STREQ("Empty '' standard 'Hello, world'",
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stream.str().c_str());
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}
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// Interesting edge cases.
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{
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// These should each get converted to the invalid character: EF BF BD.
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string16 initial_surrogate;
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initial_surrogate.push_back(0xd800);
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string16 final_surrogate;
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final_surrogate.push_back(0xdc00);
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// Old italic A = U+10300, will get converted to: F0 90 8C 80 'z'.
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string16 surrogate_pair;
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surrogate_pair.push_back(0xd800);
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surrogate_pair.push_back(0xdf00);
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surrogate_pair.push_back('z');
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// Will get converted to the invalid char + 's': EF BF BD 's'.
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string16 unterminated_surrogate;
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unterminated_surrogate.push_back(0xd800);
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unterminated_surrogate.push_back('s');
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std::ostringstream stream;
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stream << initial_surrogate << "," << final_surrogate << ","
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<< surrogate_pair << "," << unterminated_surrogate;
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EXPECT_STREQ("\xef\xbf\xbd,\xef\xbf\xbd,\xf0\x90\x8c\x80z,\xef\xbf\xbds",
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stream.str().c_str());
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}
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}
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TEST(String16Test, Hash) {
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string16 str1 = ASCIIToUTF16("hello");
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string16 str2 = ASCIIToUTF16("world");
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std::unordered_set<string16> set;
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set.insert(str1);
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EXPECT_EQ(1u, set.count(str1));
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EXPECT_EQ(0u, set.count(str2));
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}
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} // namespace base
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