components/dom_distiller/core/distilled_page_prefs_unittests.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 "components/dom_distiller/core/distilled_page_prefs.h"
   6
   7 #include "base/message_loop/message_loop.h"
   8 #include "base/run_loop.h"
   9 #include "components/pref_registry/testing_pref_service_syncable.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace dom_distiller {
  13
  14 namespace {
  15
  16 class TestingObserver : public DistilledPagePrefs::Observer {
  17  public:
  18   TestingObserver()
  19       : font_(DistilledPagePrefs::SANS_SERIF),
  20         theme_(DistilledPagePrefs::LIGHT) {}
  21
  22   virtual void OnChangeFontFamily(
  23       DistilledPagePrefs::FontFamily new_font) OVERRIDE {
  24     font_ = new_font;
  25   }
  26
  27   DistilledPagePrefs::FontFamily GetFontFamily() { return font_; }
  28
  29   virtual void OnChangeTheme(DistilledPagePrefs::Theme new_theme) OVERRIDE {
  30     theme_ = new_theme;
  31   }
  32
  33   DistilledPagePrefs::Theme GetTheme() { return theme_; }
  34
  35  private:
  36   DistilledPagePrefs::FontFamily font_;
  37   DistilledPagePrefs::Theme theme_;
  38 };
  39
  40 }  // namespace
  41
  42 class DistilledPagePrefsTest : public testing::Test {
  43  protected:
  44   virtual void SetUp() OVERRIDE {
  45     pref_service_.reset(new user_prefs::TestingPrefServiceSyncable());
  46     DistilledPagePrefs::RegisterProfilePrefs(pref_service_->registry());
  47     distilled_page_prefs_.reset(new DistilledPagePrefs(pref_service_.get()));
  48   }
  49
  50   scoped_ptr<user_prefs::TestingPrefServiceSyncable> pref_service_;
  51   scoped_ptr<DistilledPagePrefs> distilled_page_prefs_;
  52
  53  private:
  54   base::MessageLoop message_loop_;
  55 };
  56
  57 TEST_F(DistilledPagePrefsTest, TestingOnChangeFontIsBeingCalled) {
  58   TestingObserver obs;
  59   distilled_page_prefs_->AddObserver(&obs);
  60   distilled_page_prefs_->SetFontFamily(DistilledPagePrefs::MONOSPACE);
  61   EXPECT_EQ(DistilledPagePrefs::SANS_SERIF, obs.GetFontFamily());
  62   base::RunLoop().RunUntilIdle();
  63   EXPECT_EQ(DistilledPagePrefs::MONOSPACE, obs.GetFontFamily());
  64   distilled_page_prefs_->SetFontFamily(DistilledPagePrefs::SERIF);
  65   base::RunLoop().RunUntilIdle();
  66   EXPECT_EQ(DistilledPagePrefs::SERIF, obs.GetFontFamily());
  67   distilled_page_prefs_->RemoveObserver(&obs);
  68 }
  69
  70 TEST_F(DistilledPagePrefsTest, TestingMultipleObserversFont) {
  71   TestingObserver obs;
  72   distilled_page_prefs_->AddObserver(&obs);
  73   TestingObserver obs2;
  74   distilled_page_prefs_->AddObserver(&obs2);
  75   distilled_page_prefs_->SetFontFamily(DistilledPagePrefs::SERIF);
  76   base::RunLoop().RunUntilIdle();
  77   EXPECT_EQ(DistilledPagePrefs::SERIF, obs.GetFontFamily());
  78   EXPECT_EQ(DistilledPagePrefs::SERIF, obs2.GetFontFamily());
  79   distilled_page_prefs_->RemoveObserver(&obs);
  80   distilled_page_prefs_->SetFontFamily(DistilledPagePrefs::MONOSPACE);
  81   base::RunLoop().RunUntilIdle();
  82   EXPECT_EQ(DistilledPagePrefs::SERIF, obs.GetFontFamily());
  83   EXPECT_EQ(DistilledPagePrefs::MONOSPACE, obs2.GetFontFamily());
  84   distilled_page_prefs_->RemoveObserver(&obs2);
  85 }
  86
  87 TEST_F(DistilledPagePrefsTest, TestingOnChangeThemeIsBeingCalled) {
  88   TestingObserver obs;
  89   distilled_page_prefs_->AddObserver(&obs);
  90   distilled_page_prefs_->SetTheme(DistilledPagePrefs::SEPIA);
  91   EXPECT_EQ(DistilledPagePrefs::LIGHT, obs.GetTheme());
  92   base::RunLoop().RunUntilIdle();
  93   EXPECT_EQ(DistilledPagePrefs::SEPIA, obs.GetTheme());
  94   distilled_page_prefs_->SetTheme(DistilledPagePrefs::DARK);
  95   base::RunLoop().RunUntilIdle();
  96   EXPECT_EQ(DistilledPagePrefs::DARK, obs.GetTheme());
  97   distilled_page_prefs_->RemoveObserver(&obs);
  98 }
  99
 100 TEST_F(DistilledPagePrefsTest, TestingMultipleObserversTheme) {
 101   TestingObserver obs;
 102   distilled_page_prefs_->AddObserver(&obs);
 103   TestingObserver obs2;
 104   distilled_page_prefs_->AddObserver(&obs2);
 105   distilled_page_prefs_->SetTheme(DistilledPagePrefs::SEPIA);
 106   base::RunLoop().RunUntilIdle();
 107   EXPECT_EQ(DistilledPagePrefs::SEPIA, obs.GetTheme());
 108   EXPECT_EQ(DistilledPagePrefs::SEPIA, obs2.GetTheme());
 109   distilled_page_prefs_->RemoveObserver(&obs);
 110   distilled_page_prefs_->SetTheme(DistilledPagePrefs::LIGHT);
 111   base::RunLoop().RunUntilIdle();
 112   EXPECT_EQ(DistilledPagePrefs::SEPIA, obs.GetTheme());
 113   EXPECT_EQ(DistilledPagePrefs::LIGHT, obs2.GetTheme());
 114   distilled_page_prefs_->RemoveObserver(&obs2);
 115 }
 116
 117 }  // namespace dom_distiller