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| 1 // Copyright (c) 2011 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 "base/i18n/case_conversion.h" | |
| 6 #include "base/i18n/rtl.h" | |
| 7 #include "base/strings/utf_string_conversions.h" | |
| 8 #include "testing/gtest/include/gtest/gtest.h" | |
| 9 #include "third_party/icu/source/i18n/unicode/usearch.h" | |
| 10 | |
| 11 namespace base { | |
| 12 namespace i18n { | |
| 13 | |
| 14 namespace { | |
| 15 | |
| 16 const wchar_t kNonASCIIMixed[] = | |
| 17 L"\xC4\xD6\xE4\xF6\x20\xCF\xEF\x20\xF7\x25" | |
| 18 L"\xA4\x23\x2A\x5E\x60\x40\xA3\x24\x2030\x201A\x7E\x20\x1F07\x1F0F" | |
| 19 L"\x20\x1E00\x1E01"; | |
| 20 const wchar_t kNonASCIILower[] = | |
| 21 L"\xE4\xF6\xE4\xF6\x20\xEF\xEF" | |
| 22 L"\x20\xF7\x25\xA4\x23\x2A\x5E\x60\x40\xA3\x24\x2030\x201A\x7E\x20\x1F07" | |
| 23 L"\x1F07\x20\x1E01\x1E01"; | |
| 24 const wchar_t kNonASCIIUpper[] = | |
| 25 L"\xC4\xD6\xC4\xD6\x20\xCF\xCF" | |
| 26 L"\x20\xF7\x25\xA4\x23\x2A\x5E\x60\x40\xA3\x24\x2030\x201A\x7E\x20\x1F0F" | |
| 27 L"\x1F0F\x20\x1E00\x1E00"; | |
| 28 | |
| 29 } // namespace | |
| 30 | |
| 31 // Test upper and lower case string conversion. | |
| 32 TEST(CaseConversionTest, UpperLower) { | |
| 33 const string16 mixed(ASCIIToUTF16("Text with UPPer & lowER casE.")); | |
| 34 const string16 expected_lower(ASCIIToUTF16("text with upper & lower case.")); | |
| 35 const string16 expected_upper(ASCIIToUTF16("TEXT WITH UPPER & LOWER CASE.")); | |
| 36 | |
| 37 string16 result = ToLower(mixed); | |
| 38 EXPECT_EQ(expected_lower, result); | |
| 39 | |
| 40 result = ToUpper(mixed); | |
| 41 EXPECT_EQ(expected_upper, result); | |
| 42 } | |
| 43 | |
| 44 TEST(CaseConversionTest, NonASCII) { | |
| 45 const string16 mixed(WideToUTF16(kNonASCIIMixed)); | |
| 46 const string16 expected_lower(WideToUTF16(kNonASCIILower)); | |
| 47 const string16 expected_upper(WideToUTF16(kNonASCIIUpper)); | |
| 48 | |
| 49 string16 result = ToLower(mixed); | |
| 50 EXPECT_EQ(expected_lower, result); | |
| 51 | |
| 52 result = ToUpper(mixed); | |
| 53 EXPECT_EQ(expected_upper, result); | |
| 54 } | |
| 55 | |
| 56 TEST(CaseConversionTest, TurkishLocaleConversion) { | |
| 57 const string16 mixed(WideToUTF16(L"\x49\x131")); | |
| 58 const string16 expected_lower(WideToUTF16(L"\x69\x131")); | |
| 59 const string16 expected_upper(WideToUTF16(L"\x49\x49")); | |
| 60 | |
| 61 std::string default_locale(uloc_getDefault()); | |
| 62 i18n::SetICUDefaultLocale("en_US"); | |
| 63 | |
| 64 string16 result = ToLower(mixed); | |
| 65 EXPECT_EQ(expected_lower, result); | |
| 66 | |
| 67 result = ToUpper(mixed); | |
| 68 EXPECT_EQ(expected_upper, result); | |
| 69 | |
| 70 i18n::SetICUDefaultLocale("tr"); | |
| 71 | |
| 72 const string16 expected_lower_turkish(WideToUTF16(L"\x131\x131")); | |
| 73 const string16 expected_upper_turkish(WideToUTF16(L"\x49\x49")); | |
| 74 | |
| 75 result = ToLower(mixed); | |
| 76 EXPECT_EQ(expected_lower_turkish, result); | |
| 77 | |
| 78 result = ToUpper(mixed); | |
| 79 EXPECT_EQ(expected_upper_turkish, result); | |
| 80 | |
| 81 SetICUDefaultLocale(default_locale.data()); | |
| 82 } | |
| 83 | |
| 84 TEST(CaseConversionTest, FoldCase) { | |
| 85 // Simple ASCII, should lower-case. | |
| 86 EXPECT_EQ(ASCIIToUTF16("hello, world"), | |
| 87 FoldCase(ASCIIToUTF16("Hello, World"))); | |
| 88 | |
| 89 // Non-ASCII cases from above. They should all fold to the same result. | |
| 90 EXPECT_EQ(FoldCase(WideToUTF16(kNonASCIIMixed)), | |
| 91 FoldCase(WideToUTF16(kNonASCIILower))); | |
| 92 EXPECT_EQ(FoldCase(WideToUTF16(kNonASCIIMixed)), | |
| 93 FoldCase(WideToUTF16(kNonASCIIUpper))); | |
| 94 | |
| 95 // Turkish cases from above. This is the lower-case expected result from the | |
| 96 // US locale. It should be the same even when the current locale is Turkish. | |
| 97 const string16 turkish(WideToUTF16(L"\x49\x131")); | |
| 98 const string16 turkish_expected(WideToUTF16(L"\x69\x131")); | |
| 99 | |
| 100 std::string default_locale(uloc_getDefault()); | |
| 101 i18n::SetICUDefaultLocale("en_US"); | |
| 102 EXPECT_EQ(turkish_expected, FoldCase(turkish)); | |
| 103 | |
| 104 i18n::SetICUDefaultLocale("tr"); | |
| 105 EXPECT_EQ(turkish_expected, FoldCase(turkish)); | |
| 106 | |
| 107 // Test a case that gets bigger when processed. | |
| 108 // U+130 = LATIN CAPITAL LETTER I WITH DOT ABOVE gets folded to a lower case | |
| 109 // "i" followed by U+307 COMBINING DOT ABOVE. | |
| 110 EXPECT_EQ(WideToUTF16(L"i\u0307j"), FoldCase(WideToUTF16(L"\u0130j"))); | |
| 111 | |
| 112 // U+00DF (SHARP S) and U+1E9E (CAPIRAL SHARP S) are both folded to "ss". | |
| 113 EXPECT_EQ(ASCIIToUTF16("ssss"), FoldCase(WideToUTF16(L"\u00DF\u1E9E"))); | |
| 114 } | |
| 115 | |
| 116 } // namespace i18n | |
| 117 } // namespace base | |
| 118 | |
| 119 | |
| 120 | |
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