Initial RemoteCommandsInvalidator

chrome/browser/policy/cloud/remote_commands_invalidator_unittest.cc

+// Copyright 2015 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/policy/cloud/remote_commands_invalidator.h"
+
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "chrome/browser/invalidation/fake_invalidation_service.h"
+#include "components/invalidation/invalidation.h"
+#include "components/invalidation/invalidation_util.h"
+#include "components/invalidation/invalidator_registrar.h"
+#include "components/invalidation/invalidator_state.h"
+#include "components/invalidation/mock_ack_handler.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace em = enterprise_management;
+
+using ::testing::Mock;
+using ::testing::StrictMock;
+
+namespace policy {
+
+class MockRemoteCommandInvalidator : public RemoteCommandsInvalidator {
+ public:
+  MockRemoteCommandInvalidator() {}
+
+  MOCK_METHOD0(OnInitialize, void());
+  MOCK_METHOD0(OnShutdown, void());
+  MOCK_METHOD0(OnStart, void());
+  MOCK_METHOD0(OnStop, void());
+  MOCK_METHOD0(DoRemoteCommandsFetch, void());
+
+  void SetInvalidationObjectID(const invalidation::ObjectId& object_id) {
+    em::PolicyData policy_data;
+    policy_data.set_command_invalidation_source(object_id.source());
+    policy_data.set_command_invalidation_name(object_id.name());
+    ReloadPolicyData(&policy_data);
+  }
+
+  void ClearInvalidationObjectID() {
+    const em::PolicyData policy_data;
+    ReloadPolicyData(&policy_data);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockRemoteCommandInvalidator);
+};
+
+class RemoteCommandsInvalidatorTest : public testing::Test {
+ public:
+  RemoteCommandsInvalidatorTest()
+      : kTestingObjectId1(123456, "abcdef"),
+        kTestingObjectId2(654321, "defabc") {
+  }
+
+  void EnableInvalidationService() {
+    invalidation_service_.SetInvalidatorState(syncer::INVALIDATIONS_ENABLED);
+  }
+
+  void DisableInvalidationService() {
+    invalidation_service_.SetInvalidatorState(
+        syncer::TRANSIENT_INVALIDATION_ERROR);
+  }
+
+  syncer::Invalidation FireInvalidation(
+      const invalidation::ObjectId& object_id) {
+    const syncer::Invalidation invalidation =
+        syncer::Invalidation::InitUnknownVersion(object_id);
+    invalidation_service_.EmitInvalidationForTest(invalidation);
+    return invalidation;
+  }
+
+  bool IsInvalidationSent(const syncer::Invalidation& invalidation) {
+    return !invalidation_service_.GetMockAckHandler()->IsUnsent(invalidation);
+  }
+
+  bool IsInvalidationAcknowledged(const syncer::Invalidation& invalidation) {
+    return invalidation_service_.GetMockAckHandler()->IsAcknowledged(
+        invalidation);
+  }
+
+  bool IsInvalidatorRegistered() {
+    return !invalidation_service_.invalidator_registrar()
+                .GetRegisteredIds(&invalidator_)
+                .empty();
+  }
+
+  void VerifyExpectations() {
+    Mock::VerifyAndClearExpectations(&invalidator_);
+  }
+
+ protected:
+  // Initialize and start the invalidator.
+  void InitializeAndStart() {
+    EXPECT_CALL(invalidator_, OnInitialize()).Times(1);
+    invalidator_.Initialize(&invalidation_service_);
+    VerifyExpectations();
+
+    EXPECT_CALL(invalidator_, OnStart()).Times(1);
+    invalidator_.Start();
+
+    VerifyExpectations();
+  }
+
+  // Stop and shutdown the invalidator.
+  void StopAndShutdown() {
+    EXPECT_CALL(invalidator_, OnStop()).Times(1);
+    EXPECT_CALL(invalidator_, OnShutdown()).Times(1);
+    invalidator_.Shutdown();
+
+    VerifyExpectations();
+  }
+
+  // Fire an invalidation to verify that invalidation is not working.
+  void VerifyInvalidationDisabled(const invalidation::ObjectId& object_id) {
+    const syncer::Invalidation invalidation = FireInvalidation(object_id);
+
+    base::RunLoop().RunUntilIdle();
+    EXPECT_FALSE(IsInvalidationSent(invalidation));
+  }
+
+  // Fire an invalidation to verify that invalidation works.
+  void VerifyInvalidationEnabled(const invalidation::ObjectId& object_id) {
+    EXPECT_TRUE(invalidator_.invalidations_enabled());
+
+    EXPECT_CALL(invalidator_, DoRemoteCommandsFetch()).Times(1);
+    const syncer::Invalidation invalidation = FireInvalidation(object_id);
+
+    base::RunLoop().RunUntilIdle();
+    EXPECT_TRUE(IsInvalidationSent(invalidation));
+    EXPECT_TRUE(IsInvalidationAcknowledged(invalidation));
+    VerifyExpectations();
+  }
+
+  const invalidation::ObjectId kTestingObjectId1;
+  const invalidation::ObjectId kTestingObjectId2;
+
+  base::MessageLoop loop_;
+
+  invalidation::FakeInvalidationService invalidation_service_;
+  StrictMock<MockRemoteCommandInvalidator> invalidator_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(RemoteCommandsInvalidatorTest);
+};
+
+// Verifies that only the fired invalidations will be received.
+TEST_F(RemoteCommandsInvalidatorTest, FiredInvalidation) {
+  InitializeAndStart();
+
+  // Invalidator won't work at this point.
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+
+  // Load the policy data, it should work now.
+  invalidator_.SetInvalidationObjectID(kTestingObjectId1);
+  EXPECT_TRUE(invalidator_.invalidations_enabled());
+
+  base::RunLoop().RunUntilIdle();
+  // No invalidation will be received if no invalidation is fired.
+  VerifyExpectations();
+
+  // Fire an invalidation with different object id, no invalidation will be
+  // received.
+  const syncer::Invalidation invalidation1 =
+      FireInvalidation(kTestingObjectId2);
+
+  base::RunLoop().RunUntilIdle();
+  EXPECT_FALSE(IsInvalidationSent(invalidation1));
+  VerifyExpectations();
+
+  // Fire the invalidation, it should be acknowledged and trigger a remote
+  // commands fetch.
+  EXPECT_CALL(invalidator_, DoRemoteCommandsFetch()).Times(1);
+  const syncer::Invalidation invalidation2 =
+      FireInvalidation(kTestingObjectId1);
+
+  base::RunLoop().RunUntilIdle();
+  EXPECT_TRUE(IsInvalidationSent(invalidation2));
+  EXPECT_TRUE(IsInvalidationAcknowledged(invalidation2));
+  VerifyExpectations();
+
+  StopAndShutdown();
+}
+
+// Verifies that no invalidation will be received when invalidator is shutdown.
+TEST_F(RemoteCommandsInvalidatorTest, ShutDown) {
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+  FireInvalidation(kTestingObjectId1);
+
+  base::RunLoop().RunUntilIdle();
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+}
+
+// Verifies that no invalidation will be received when invalidator is stopped.
+TEST_F(RemoteCommandsInvalidatorTest, Stopped) {
+  EXPECT_CALL(invalidator_, OnInitialize()).Times(1);
+  invalidator_.Initialize(&invalidation_service_);
+  VerifyExpectations();
+
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+  FireInvalidation(kTestingObjectId2);
+
+  base::RunLoop().RunUntilIdle();
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+
+  EXPECT_CALL(invalidator_, OnShutdown()).Times(1);
+  invalidator_.Shutdown();
+}
+
+// Verifies that stated/stopped state changes work as expected.
+TEST_F(RemoteCommandsInvalidatorTest, StartedStateChange) {
+  InitializeAndStart();
+
+  // Invalidator requires object id to work.
+  VerifyInvalidationDisabled(kTestingObjectId1);
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+  invalidator_.SetInvalidationObjectID(kTestingObjectId1);
+  VerifyInvalidationEnabled(kTestingObjectId1);
+
+  // Stop and restart invalidator.
+  EXPECT_CALL(invalidator_, OnStop()).Times(1);
+  invalidator_.Stop();
+  VerifyExpectations();
+
+  VerifyInvalidationDisabled(kTestingObjectId1);
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+
+  EXPECT_CALL(invalidator_, OnStart()).Times(1);
+  invalidator_.Start();
+  VerifyExpectations();
+
+  // Invalidator requires object id to work.
+  invalidator_.SetInvalidationObjectID(kTestingObjectId1);
+  VerifyInvalidationEnabled(kTestingObjectId1);
+
+  StopAndShutdown();
+}
+
+// Verifies that registered state changes work as expected.
+TEST_F(RemoteCommandsInvalidatorTest, RegistedStateChange) {
+  InitializeAndStart();
+
+  invalidator_.SetInvalidationObjectID(kTestingObjectId1);
+  VerifyInvalidationEnabled(kTestingObjectId1);
+
+  invalidator_.SetInvalidationObjectID(kTestingObjectId2);
+  VerifyInvalidationEnabled(kTestingObjectId2);
+  VerifyInvalidationDisabled(kTestingObjectId1);
+
+  invalidator_.SetInvalidationObjectID(kTestingObjectId1);
+  VerifyInvalidationEnabled(kTestingObjectId1);
+  VerifyInvalidationDisabled(kTestingObjectId2);
+
+  invalidator_.ClearInvalidationObjectID();
+  VerifyInvalidationDisabled(kTestingObjectId1);
+  VerifyInvalidationDisabled(kTestingObjectId2);
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+
+  invalidator_.SetInvalidationObjectID(kTestingObjectId2);
+  VerifyInvalidationEnabled(kTestingObjectId2);
+  VerifyInvalidationDisabled(kTestingObjectId1);
+
+  StopAndShutdown();
+}
+
+// Verifies that invalidation service enabled state changes work as expected.
+TEST_F(RemoteCommandsInvalidatorTest, InvalidationServiceEnabledStateChanged) {
+  InitializeAndStart();
+
+  invalidator_.SetInvalidationObjectID(kTestingObjectId1);
+  VerifyInvalidationEnabled(kTestingObjectId1);
+
+  DisableInvalidationService();
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+
+  EnableInvalidationService();
+  VerifyInvalidationEnabled(kTestingObjectId1);
+
+  EnableInvalidationService();
+  VerifyInvalidationEnabled(kTestingObjectId1);
+
+  DisableInvalidationService();
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+
+  DisableInvalidationService();
+  EXPECT_FALSE(invalidator_.invalidations_enabled());
+
+  StopAndShutdown();
+}
+
+}  // namespace policy