src/ui/message_center/views/message_center_view_unittest.cc

   1 // Copyright 2013 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 <map>
   6
   7 #include "base/logging.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11 #include "ui/message_center/fake_message_center.h"
  12 #include "ui/message_center/notification.h"
  13 #include "ui/message_center/notification_list.h"
  14 #include "ui/message_center/notification_types.h"
  15 #include "ui/message_center/views/message_center_controller.h"
  16 #include "ui/message_center/views/message_center_view.h"
  17 #include "ui/message_center/views/notification_view.h"
  18
  19 namespace message_center {
  20
  21 /* Types **********************************************************************/
  22
  23 enum CallType {
  24   GET_PREFERRED_SIZE,
  25   GET_HEIGHT_FOR_WIDTH,
  26   LAYOUT
  27 };
  28
  29 /* Instrumented/Mock NotificationView subclass ********************************/
  30
  31 class MockNotificationView : public NotificationView {
  32  public:
  33   class Test {
  34    public:
  35     virtual void RegisterCall(CallType type) = 0;
  36   };
  37
  38   explicit MockNotificationView(MessageCenterController* controller,
  39                                 const Notification& notification,
  40                                 Test* test);
  41   ~MockNotificationView() override;
  42
  43   gfx::Size GetPreferredSize() const override;
  44   int GetHeightForWidth(int w) const override;
  45   void Layout() override;
  46
  47  private:
  48   Test* test_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(MockNotificationView);
  51 };
  52
  53 MockNotificationView::MockNotificationView(MessageCenterController* controller,
  54                                            const Notification& notification,
  55                                            Test* test)
  56     : NotificationView(controller, notification),
  57       test_(test) {
  58 }
  59
  60 MockNotificationView::~MockNotificationView() {
  61 }
  62
  63 gfx::Size MockNotificationView::GetPreferredSize() const {
  64   test_->RegisterCall(GET_PREFERRED_SIZE);
  65   DCHECK(child_count() > 0);
  66   return NotificationView::GetPreferredSize();
  67 }
  68
  69 int MockNotificationView::GetHeightForWidth(int width) const {
  70   test_->RegisterCall(GET_HEIGHT_FOR_WIDTH);
  71   DCHECK(child_count() > 0);
  72   return NotificationView::GetHeightForWidth(width);
  73 }
  74
  75 void MockNotificationView::Layout() {
  76   test_->RegisterCall(LAYOUT);
  77   DCHECK(child_count() > 0);
  78   NotificationView::Layout();
  79 }
  80
  81 /* Test fixture ***************************************************************/
  82
  83 class MessageCenterViewTest : public testing::Test,
  84                               public MockNotificationView::Test,
  85                               public MessageCenterController {
  86  public:
  87   MessageCenterViewTest();
  88   ~MessageCenterViewTest() override;
  89
  90   void SetUp() override;
  91   void TearDown() override;
  92
  93   MessageCenterView* GetMessageCenterView();
  94   int GetNotificationCount();
  95   int GetCallCount(CallType type);
  96
  97  // Overridden from MessageCenterController:
  98   void ClickOnNotification(const std::string& notification_id) override;
  99   void RemoveNotification(const std::string& notification_id,
 100                           bool by_user) override;
 101   scoped_ptr<ui::MenuModel> CreateMenuModel(
 102       const NotifierId& notifier_id,
 103       const base::string16& display_source) override;
 104   bool HasClickedListener(const std::string& notification_id) override;
 105   void ClickOnNotificationButton(const std::string& notification_id,
 106                                  int button_index) override;
 107
 108   // Overridden from MockNotificationView::Test
 109   void RegisterCall(CallType type) override;
 110
 111   void LogBounds(int depth, views::View* view);
 112
 113  private:
 114   views::View* MakeParent(views::View* child1, views::View* child2);
 115
 116
 117   scoped_ptr<MessageCenterView> message_center_view_;
 118   FakeMessageCenter message_center_;
 119   std::map<CallType,int> callCounts_;
 120
 121   DISALLOW_COPY_AND_ASSIGN(MessageCenterViewTest);
 122 };
 123
 124 MessageCenterViewTest::MessageCenterViewTest() {
 125 }
 126
 127 MessageCenterViewTest::~MessageCenterViewTest() {
 128 }
 129
 130 void MessageCenterViewTest::SetUp() {
 131   // Create a dummy notification.
 132   Notification notification(NOTIFICATION_TYPE_SIMPLE,
 133                             std::string("notification id"),
 134                             base::UTF8ToUTF16("title"),
 135                             base::UTF8ToUTF16("message"),
 136                             gfx::Image(),
 137                             base::UTF8ToUTF16("display source"),
 138                             NotifierId(NotifierId::APPLICATION, "extension_id"),
 139                             message_center::RichNotificationData(),
 140                             NULL);
 141
 142   // ...and a list for it.
 143   NotificationList::Notifications notifications;
 144   notifications.insert(&notification);
 145
 146   // Then create a new MessageCenterView with that single notification.
 147   base::string16 title;
 148   message_center_view_.reset(new MessageCenterView(
 149       &message_center_, NULL, 100, false, /*top_down =*/false, title));
 150   message_center_view_->SetNotifications(notifications);
 151
 152   // Remove and delete the NotificationView now owned by the MessageCenterView's
 153   // MessageListView and replace it with an instrumented MockNotificationView
 154   // that will become owned by the MessageListView.
 155   MockNotificationView* mock;
 156   mock = new MockNotificationView(this, notification, this);
 157   message_center_view_->notification_views_[notification.id()] = mock;
 158   message_center_view_->SetNotificationViewForTest(mock);
 159 }
 160
 161 void MessageCenterViewTest::TearDown() {
 162   message_center_view_.reset();
 163 }
 164
 165 MessageCenterView* MessageCenterViewTest::GetMessageCenterView() {
 166   return message_center_view_.get();
 167 }
 168
 169 int MessageCenterViewTest::GetNotificationCount() {
 170   return 1;
 171 }
 172
 173 int MessageCenterViewTest::GetCallCount(CallType type) {
 174   return callCounts_[type];
 175 }
 176
 177 void MessageCenterViewTest::ClickOnNotification(
 178     const std::string& notification_id) {
 179   // For this test, this method should not be invoked.
 180   NOTREACHED();
 181 }
 182
 183 void MessageCenterViewTest::RemoveNotification(
 184     const std::string& notification_id,
 185     bool by_user) {
 186   // For this test, this method should not be invoked.
 187   NOTREACHED();
 188 }
 189
 190 scoped_ptr<ui::MenuModel> MessageCenterViewTest::CreateMenuModel(
 191     const NotifierId& notifier_id,
 192     const base::string16& display_source) {
 193   // For this test, this method should not be invoked.
 194   NOTREACHED();
 195   return scoped_ptr<ui::MenuModel>();
 196 }
 197
 198 bool MessageCenterViewTest::HasClickedListener(
 199     const std::string& notification_id) {
 200   return true;
 201 }
 202
 203 void MessageCenterViewTest::ClickOnNotificationButton(
 204     const std::string& notification_id,
 205     int button_index) {
 206   // For this test, this method should not be invoked.
 207   NOTREACHED();
 208 }
 209
 210 void MessageCenterViewTest::RegisterCall(CallType type) {
 211   callCounts_[type] += 1;
 212 }
 213
 214 void MessageCenterViewTest::LogBounds(int depth, views::View* view) {
 215   base::string16 inset;
 216   for (int i = 0; i < depth; ++i)
 217     inset.append(base::UTF8ToUTF16("  "));
 218   gfx::Rect bounds = view->bounds();
 219   DVLOG(0) << inset << bounds.width() << " x " << bounds.height()
 220            << " @ " << bounds.x() << ", " << bounds.y();
 221   for (int i = 0; i < view->child_count(); ++i)
 222     LogBounds(depth + 1, view->child_at(i));
 223 }
 224
 225 /* Unit tests *****************************************************************/
 226
 227 TEST_F(MessageCenterViewTest, CallTest) {
 228   // Exercise (with size values that just need to be large enough).
 229   GetMessageCenterView()->SetBounds(0, 0, 100, 100);
 230
 231   // Verify that this didn't generate more than 2 Layout() call per descendant
 232   // NotificationView or more than a total of 20 GetPreferredSize() and
 233   // GetHeightForWidth() calls per descendant NotificationView. 20 is a very
 234   // large number corresponding to the current reality. That number will be
 235   // ratcheted down over time as the code improves.
 236   EXPECT_LE(GetCallCount(LAYOUT), GetNotificationCount() * 2);
 237   EXPECT_LE(GetCallCount(GET_PREFERRED_SIZE) +
 238             GetCallCount(GET_HEIGHT_FOR_WIDTH),
 239             GetNotificationCount() * 20);
 240 }
 241
 242 }  // namespace message_center