base/i18n/case_conversion_unittest.cc

   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 {
  13
  14 // Test upper and lower case string conversion.
  15 TEST(CaseConversionTest, UpperLower) {
  16   const string16 mixed(ASCIIToUTF16("Text with UPPer & lowER casE."));
  17   const string16 expected_lower(ASCIIToUTF16("text with upper & lower case."));
  18   const string16 expected_upper(ASCIIToUTF16("TEXT WITH UPPER & LOWER CASE."));
  19
  20   string16 result = base::i18n::ToLower(mixed);
  21   EXPECT_EQ(expected_lower, result);
  22
  23   result = base::i18n::ToUpper(mixed);
  24   EXPECT_EQ(expected_upper, result);
  25 }
  26
  27 TEST(CaseConversionTest, NonASCII) {
  28   const string16 mixed(WideToUTF16(
  29       L"\xC4\xD6\xE4\xF6\x20\xCF\xEF\x20\xF7\x25"
  30       L"\xA4\x23\x2A\x5E\x60\x40\xA3\x24\x2030\x201A\x7E\x20\x1F07\x1F0F"
  31       L"\x20\x1E00\x1E01"));
  32   const string16 expected_lower(WideToUTF16(
  33       L"\xE4\xF6\xE4\xF6\x20\xEF\xEF"
  34       L"\x20\xF7\x25\xA4\x23\x2A\x5E\x60\x40\xA3\x24\x2030\x201A\x7E\x20\x1F07"
  35       L"\x1F07\x20\x1E01\x1E01"));
  36   const string16 expected_upper(WideToUTF16(
  37       L"\xC4\xD6\xC4\xD6\x20\xCF\xCF"
  38       L"\x20\xF7\x25\xA4\x23\x2A\x5E\x60\x40\xA3\x24\x2030\x201A\x7E\x20\x1F0F"
  39       L"\x1F0F\x20\x1E00\x1E00"));
  40
  41   string16 result = base::i18n::ToLower(mixed);
  42   EXPECT_EQ(expected_lower, result);
  43
  44   result = base::i18n::ToUpper(mixed);
  45   EXPECT_EQ(expected_upper, result);
  46 }
  47
  48 TEST(CaseConversionTest, TurkishLocaleConversion) {
  49   const string16 mixed(WideToUTF16(L"\x49\x131"));
  50   const string16 expected_lower(WideToUTF16(L"\x69\x131"));
  51   const string16 expected_upper(WideToUTF16(L"\x49\x49"));
  52
  53   std::string default_locale(uloc_getDefault());
  54   i18n::SetICUDefaultLocale("en_US");
  55
  56   string16 result = base::i18n::ToLower(mixed);
  57   EXPECT_EQ(expected_lower, result);
  58
  59   result = base::i18n::ToUpper(mixed);
  60   EXPECT_EQ(expected_upper, result);
  61
  62   i18n::SetICUDefaultLocale("tr");
  63
  64   const string16 expected_lower_turkish(WideToUTF16(L"\x131\x131"));
  65   const string16 expected_upper_turkish(WideToUTF16(L"\x49\x49"));
  66
  67   result = base::i18n::ToLower(mixed);
  68   EXPECT_EQ(expected_lower_turkish, result);
  69
  70   result = base::i18n::ToUpper(mixed);
  71   EXPECT_EQ(expected_upper_turkish, result);
  72
  73   base::i18n::SetICUDefaultLocale(default_locale.data());
  74 }
  75
  76 }  // namespace
  77 }  // namespace base
  78
  79
  80