Refactor sync-specific parts out of SyncNotifier/SyncNotifierObserver

sync/notifier/invalidation_notifier_unittest.cc

 // Copyright (c) 2012 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 "sync/notifier/invalidation_notifier.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "jingle/notifier/base/fake_base_task.h"
 #include "jingle/notifier/base/notifier_options.h"
 #include "jingle/notifier/listener/fake_push_client.h"
 #include "net/url_request/url_request_test_util.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/base/model_type_payload_map.h"
 #include "sync/internal_api/public/util/weak_handle.h"
 #include "sync/notifier/invalidation_state_tracker.h"
 #include "sync/notifier/mock_invalidation_state_tracker.h"
 #include "sync/notifier/mock_sync_notifier_observer.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 
 namespace {
 
 using ::testing::InSequence;
+using ::testing::Return;
 using ::testing::StrictMock;
 
 class InvalidationNotifierTest : public testing::Test {
  protected:
   virtual void TearDown() {
     if (invalidation_notifier_.get())
       ResetNotifier();
   }
 
   // Constructs an InvalidationNotifier, places it in
   // |invalidation_notifier_|, and adds |mock_observer_| as an observer. This
   // remains in place until either TearDown (automatic) or ResetNotifier
   // (manual) is called.
   void CreateAndObserveNotifier(
       const std::string& initial_invalidation_state) {
     notifier::NotifierOptions notifier_options;
     // Note: URLRequestContextGetters are ref-counted.
     notifier_options.request_context_getter =
         new TestURLRequestContextGetter(message_loop_.message_loop_proxy());
     invalidation_notifier_.reset(
         new InvalidationNotifier(
             scoped_ptr<notifier::PushClient>(new notifier::FakePushClient()),
             InvalidationVersionMap(),
             initial_invalidation_state,
             syncer::MakeWeakHandle(mock_tracker_.AsWeakPtr()),
             "fake_client_info"));
-    invalidation_notifier_->AddObserver(&mock_observer_);
+    invalidation_notifier_->AddHandler(&mock_observer_);
   }
 
   void ResetNotifier() {
-    invalidation_notifier_->RemoveObserver(&mock_observer_);
+    invalidation_notifier_->RemoveHandler(&mock_observer_);
     // Stopping the invalidation notifier stops its scheduler, which deletes any
     // pending tasks without running them.  Some tasks "run and delete" another
     // task, so they must be run in order to avoid leaking the inner task.
     // Stopping does not schedule any tasks, so it's both necessary and
     // sufficient to drain the task queue before stopping the notifier.
     message_loop_.RunAllPending();
     invalidation_notifier_.reset();
   }
 
   MessageLoopForIO message_loop_;
   scoped_ptr<InvalidationNotifier> invalidation_notifier_;
   StrictMock<MockInvalidationStateTracker> mock_tracker_;
   StrictMock<MockSyncNotifierObserver> mock_observer_;
   notifier::FakeBaseTask fake_base_task_;
 };
 
+// TODO(dcheng): Need to add test cases testing attempts to add observers
+// which register for the same object IDs as well as removing an observer
+// clearing its object IDs.

[dcheng, 2012/07/10 19:15:25]

I expect to put these new test cases in InvalidationNotifierBaseTest.

+
 TEST_F(InvalidationNotifierTest, Basic) {
   CreateAndObserveNotifier("fake_state");
   InSequence dummy;
 
-  syncer::ModelTypePayloadMap type_payloads;
-  type_payloads[syncer::PREFERENCES] = "payload";
-  type_payloads[syncer::BOOKMARKS] = "payload";
-  type_payloads[syncer::AUTOFILL] = "payload";
+  ModelTypeSet models(syncer::PREFERENCES,
+                      syncer::BOOKMARKS,
+                      syncer::AUTOFILL);
+  ModelTypePayloadMap type_payloads =
+      ModelTypePayloadMapFromEnumSet(models, "payload");
+
+  EXPECT_CALL(mock_observer_, GetHandledIds())
+      .WillOnce(Return(ModelTypeSetToObjectIdSet(models)));
+  invalidation_notifier_->ReloadHandlers();
 
   EXPECT_CALL(mock_observer_, OnNotificationsEnabled());
-  EXPECT_CALL(mock_observer_,
-              OnIncomingNotification(type_payloads,
-                                     REMOTE_NOTIFICATION));
+  EXPECT_CALL(mock_observer_, OnIncomingNotification(
+      ModelTypePayloadMapToObjectIdPayloadMap(type_payloads),
+      REMOTE_NOTIFICATION));
   EXPECT_CALL(mock_observer_,
               OnNotificationsDisabled(TRANSIENT_NOTIFICATION_ERROR));
   EXPECT_CALL(mock_observer_,
               OnNotificationsDisabled(NOTIFICATION_CREDENTIALS_REJECTED));
   // Note no expectation on mock_tracker_, as we initialized with
   // non-empty initial_invalidation_state above.
 
   // TODO(tim): This call should be a no-op, Remove once bug 124140 and
   // associated issues are fixed.
   invalidation_notifier_->SetStateDeprecated("fake_state");
   invalidation_notifier_->SetUniqueId("fake_id");
   invalidation_notifier_->UpdateCredentials("foo@bar.com", "fake_token");
 
   invalidation_notifier_->OnNotificationsEnabled();
 
-  ObjectIdPayloadMap id_payloads;
-  for (syncer::ModelTypePayloadMap::const_iterator it = type_payloads.begin();
-       it != type_payloads.end(); ++it) {
-    invalidation::ObjectId id;
-    ASSERT_TRUE(RealModelTypeToObjectId(it->first, &id));
-    id_payloads[id] = "payload";
-  }
-  invalidation_notifier_->OnInvalidate(id_payloads);
+  invalidation_notifier_->OnInvalidate(
+      ModelTypePayloadMapToObjectIdPayloadMap(type_payloads));
 
   invalidation_notifier_->OnNotificationsDisabled(
       TRANSIENT_NOTIFICATION_ERROR);
   invalidation_notifier_->OnNotificationsDisabled(
       NOTIFICATION_CREDENTIALS_REJECTED);
 }
 
 TEST_F(InvalidationNotifierTest, MigrateState) {
   CreateAndObserveNotifier(std::string());
   InSequence dummy;
 
   EXPECT_CALL(mock_tracker_, SetInvalidationState("fake_state"));
   invalidation_notifier_->SetStateDeprecated("fake_state");
 
   // Should do nothing.
   invalidation_notifier_->SetStateDeprecated("spurious_fake_state");
 
   // Pretend Chrome shut down.
   ResetNotifier();
 
   CreateAndObserveNotifier("fake_state");
   // Should do nothing.
   invalidation_notifier_->SetStateDeprecated("more_spurious_fake_state");
 }
 
 }  // namespace
 
 }  // namespace syncer