1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <sstream> 6 #include <unordered_set> 7 8 #include "base/strings/string16.h" 9 10 #include "base/strings/utf_string_conversions.h" 11 #include "testing/gtest/include/gtest/gtest.h" 12 13 namespace base { 14 15 // We define a custom operator<< for string16 so we can use it with logging. 16 // This tests that conversion. 17 TEST(String16Test, OutputStream) { 18 // Basic stream test. 19 { 20 std::ostringstream stream; 21 stream << "Empty '" << string16() << "' standard '" 22 << string16(ASCIIToUTF16("Hello, world")) << "'"; 23 EXPECT_STREQ("Empty '' standard 'Hello, world'", 24 stream.str().c_str()); 25 } 26 27 // Interesting edge cases. 28 { 29 // These should each get converted to the invalid character: EF BF BD. 30 string16 initial_surrogate; 31 initial_surrogate.push_back(0xd800); 32 string16 final_surrogate; 33 final_surrogate.push_back(0xdc00); 34 35 // Old italic A = U+10300, will get converted to: F0 90 8C 80 'z'. 36 string16 surrogate_pair; 37 surrogate_pair.push_back(0xd800); 38 surrogate_pair.push_back(0xdf00); 39 surrogate_pair.push_back('z'); 40 41 // Will get converted to the invalid char + 's': EF BF BD 's'. 42 string16 unterminated_surrogate; 43 unterminated_surrogate.push_back(0xd800); 44 unterminated_surrogate.push_back('s'); 45 46 std::ostringstream stream; 47 stream << initial_surrogate << "," << final_surrogate << "," 48 << surrogate_pair << "," << unterminated_surrogate; 49 50 EXPECT_STREQ("\xef\xbf\xbd,\xef\xbf\xbd,\xf0\x90\x8c\x80z,\xef\xbf\xbds", 51 stream.str().c_str()); 52 } 53 } 54 55 TEST(String16Test, Hash) { 56 string16 str1 = ASCIIToUTF16("hello"); 57 string16 str2 = ASCIIToUTF16("world"); 58 59 std::unordered_set<string16> set; 60 61 set.insert(str1); 62 EXPECT_EQ(1u, set.count(str1)); 63 EXPECT_EQ(0u, set.count(str2)); 64 } 65 66 } // namespace base 67
