chrome/browser/android/preferences/pref_service_bridge_unittest.cc

   1 // Copyright 2014 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 "chrome/browser/android/preferences/pref_service_bridge.h"
   6
   7 #include <string>
   8
   9 #include "testing/gtest/include/gtest/gtest.h"
  10
  11
  12 // A test class for PrefServiceBridge class.
  13 class PrefServiceBridgeTest : public testing::Test {
  14  public:
  15   std::string GetAcceptLanguages(std::string locale,
  16                                  std::string accept_languages) {
  17     PrefServiceBridge::PrependToAcceptLanguagesIfNecessary(locale,
  18                                                            &accept_languages);
  19     return accept_languages;
  20   }
  21 };
  22
  23 TEST_F(PrefServiceBridgeTest, PrependToAcceptLanguagesAsNecessary) {
  24   EXPECT_EQ("ms-MY,ms,en-US,en", GetAcceptLanguages("ms_MY", "en-US,en"));
  25
  26   EXPECT_EQ("de-CH,de-DE,de,en-US,en",
  27       GetAcceptLanguages("de_CH", "de-DE,de,en-US,en"));
  28
  29   // Make sure we do not prepend language code even when a language code is at
  30   // the end.
  31   EXPECT_EQ("zh-TW,zh-CN,zh", GetAcceptLanguages("zh_TW", "zh-CN,zh"));
  32 }
  33
  34 TEST_F(PrefServiceBridgeTest,
  35        ShouldNotPrependToAcceptLanguagesWhenNotNecessary) {
  36   // Java has some deprecated two letter language code. For instance, "iw" is
  37   // an old code that needs to be replaced by "he" which is the new code for
  38   // Hebrew.
  39   EXPECT_EQ("he-IL,he,en-US,en",
  40       GetAcceptLanguages("iw_IL", "he-IL,he,en-US,en"));
  41
  42   // This logic should not affect cases where original accept language already
  43   // reflects the language code in the locale.
  44   EXPECT_EQ("en-US,en", GetAcceptLanguages("en_US", "en-US,en"));
  45   EXPECT_EQ("zh-CN,zh", GetAcceptLanguages("zh_CN", "zh-CN,zh"));
  46
  47   // "ms" is not expected. No replacement takes place.
  48   EXPECT_EQ("en-US,en", GetAcceptLanguages("ms", "en-US,en"));
  49 }