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