Add a default content setting to the notifications service.

chrome/browser/notifications/desktop_notification_service_unittest.cc

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/notifications/desktop_notification_service.h"
+
+#include "base/task.h"
+#include "base/waitable_event.h"
+#include "chrome/browser/notifications/notifications_prefs_cache.h"
+#include "chrome/browser/renderer_host/test/test_render_view_host.h"
+#include "chrome/test/testing_profile.h"
+#include "grit/generated_resources.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class DesktopNotificationServiceTest : public RenderViewHostTestHarness {
+ public:
+  DesktopNotificationServiceTest()
+      : event_(false, false),
+        ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) {
+  }
+
+  void LetIOThreadWait() {
+    event_.Wait();
+  }
+
+  base::WaitableEvent event_;
+  ScopedRunnableMethodFactory<DesktopNotificationServiceTest> method_factory_;
+};
+
+TEST_F(DesktopNotificationServiceTest, DefaultContentSettingSentToCache) {
+  // The current message loop was already initalized by the superclass.
+  ChromeThread ui_thread(ChromeThread::UI, MessageLoop::current());
+
+  // Create IO thread, start its message loop.
+  ChromeThread io_thread(ChromeThread::IO);
+  io_thread.Start();
+  ChromeThread::PostTask(ChromeThread::UI, FROM_HERE,

[bulach, 2010/07/05 09:54:54]

shouldn't this post to IO? also, perhaps DCHECK on the function that it's
blocking the right thread? or perhaps rename LetIOThreadWait to something like
BlockUntilSignaled()?

[Nico, 2010/07/05 15:50:14]

Yes: http://src.chromium.org/viewvc/chrome?view=rev&revision=51588 :-/

+      method_factory_.NewRunnableMethod(
+          &DesktopNotificationServiceTest::LetIOThreadWait));
+
+  // Creates the service, calls InitPrefs() on it which loads data from the
+  // profile into the cache and then puts the cache in io thread mode.
+  DesktopNotificationService* service =
+      profile()->GetDesktopNotificationService();
+  NotificationsPrefsCache* cache = service->prefs_cache();
+
+  // The default pref registered in DesktopNotificationService is "ask",
+  // and that's what sent to the cache.
+  EXPECT_EQ(CONTENT_SETTING_ASK, cache->CachedDefaultContentSetting());
+
+  // Change the default content setting. This will post a task on the IO thread
+  // to update the cache.
+  service->SetDefaultContentSetting(CONTENT_SETTING_BLOCK);
+
+  // The updated pref shouldn't be sent to the cache immediately.
+  EXPECT_EQ(CONTENT_SETTING_ASK, cache->CachedDefaultContentSetting());
+
+  // Run IO thread tasks.
+  event_.Signal();
+  io_thread.Stop();
+
+  // Now that IO thread events have been processed, it should be there.
+  EXPECT_EQ(CONTENT_SETTING_BLOCK, cache->CachedDefaultContentSetting());
+}
+
+