brillo/dbus/dbus_object_unittest.cc - aosp/platform/external/libbrillo - Git at Google

 // Copyright 2014 The Chromium OS 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 <brillo/dbus/dbus_object.h>

 #include <memory>

 #include <base/bind.h>
 #include <brillo/dbus/dbus_object_test_helpers.h>
 #include <brillo/dbus/mock_exported_object_manager.h>
 #include <dbus/message.h>
 #include <dbus/property.h>
 #include <dbus/object_path.h>
 #include <dbus/mock_bus.h>
 #include <dbus/mock_exported_object.h>

 using ::testing::AnyNumber;
 using ::testing::Return;
 using ::testing::Invoke;
 using ::testing::Mock;
 using ::testing::_;

 namespace brillo {
 namespace dbus_utils {

 namespace {

 const char kMethodsExportedOn[] = "/export";

 const char kTestInterface1[] = "org.chromium.Test.MathInterface";
 const char kTestMethod_Add[] = "Add";
 const char kTestMethod_Negate[] = "Negate";
 const char kTestMethod_Positive[] = "Positive";
 const char kTestMethod_AddSubtract[] = "AddSubtract";

 const char kTestInterface2[] = "org.chromium.Test.StringInterface";
 const char kTestMethod_StrLen[] = "StrLen";
 const char kTestMethod_CheckNonEmpty[] = "CheckNonEmpty";

 const char kTestInterface3[] = "org.chromium.Test.NoOpInterface";
 const char kTestMethod_NoOp[] = "NoOp";
 const char kTestMethod_WithMessage[] = "TestWithMessage";
 const char kTestMethod_WithMessageAsync[] = "TestWithMessageAsync";

 const char kTestInterface4[] = "org.chromium.Test.LateInterface";

 struct Calc {
   int Add(int x, int y) { return x + y; }
   int Negate(int x) { return -x; }
   void Positive(std::unique_ptr<DBusMethodResponse<double>> response,
                 double x) {
     if (x >= 0.0) {
       response->Return(x);
       return;
     }
     ErrorPtr error;
     Error::AddTo(&error, FROM_HERE, "test", "not_positive",
                  "Negative value passed in");
     response->ReplyWithError(error.get());
   }
   void AddSubtract(int x, int y, int* sum, int* diff) {
     *sum = x + y;
     *diff = x - y;
   }
 };

 int StrLen(const std::string& str) {
   return str.size();
 }

 bool CheckNonEmpty(ErrorPtr* error, const std::string& str) {
   if (!str.empty())
     return true;
   Error::AddTo(error, FROM_HERE, "test", "string_empty", "String is empty");
   return false;
 }

 void NoOp() {}

 bool TestWithMessage(ErrorPtr* /* error */,
                      dbus::Message* message,
                      std::string* str) {
   *str = message->GetSender();
   return true;
 }

 void TestWithMessageAsync(
     std::unique_ptr<DBusMethodResponse<std::string>> response,
     dbus::Message* message) {
   response->Return(message->GetSender());
 }

 void OnInterfaceExported(bool success) {
   // Does nothing.
 }

 }  // namespace

 class DBusObjectTest : public ::testing::Test {
  public:
   virtual void SetUp() {
     dbus::Bus::Options options;
     options.bus_type = dbus::Bus::SYSTEM;
     bus_ = new dbus::MockBus(options);
     // By default, don't worry about threading assertions.
     EXPECT_CALL(*bus_, AssertOnOriginThread()).Times(AnyNumber());
     EXPECT_CALL(*bus_, AssertOnDBusThread()).Times(AnyNumber());
     // Use a mock exported object.
     const dbus::ObjectPath kMethodsExportedOnPath{
         std::string{kMethodsExportedOn}};
     mock_exported_object_ =
         new dbus::MockExportedObject(bus_.get(), kMethodsExportedOnPath);
     EXPECT_CALL(*bus_, GetExportedObject(kMethodsExportedOnPath))
         .Times(AnyNumber())
         .WillRepeatedly(Return(mock_exported_object_.get()));
     EXPECT_CALL(*mock_exported_object_, ExportMethod(_, _, _, _))
         .Times(AnyNumber());
     EXPECT_CALL(*mock_exported_object_, Unregister()).Times(1);

     dbus_object_ = std::unique_ptr<DBusObject>(
         new DBusObject(nullptr, bus_, kMethodsExportedOnPath));

     DBusInterface* itf1 = dbus_object_->AddOrGetInterface(kTestInterface1);
     itf1->AddSimpleMethodHandler(
         kTestMethod_Add, base::Unretained(&calc_), &Calc::Add);
     itf1->AddSimpleMethodHandler(
         kTestMethod_Negate, base::Unretained(&calc_), &Calc::Negate);
     itf1->AddMethodHandler(
         kTestMethod_Positive, base::Unretained(&calc_), &Calc::Positive);
     itf1->AddSimpleMethodHandler(
         kTestMethod_AddSubtract, base::Unretained(&calc_), &Calc::AddSubtract);
     DBusInterface* itf2 = dbus_object_->AddOrGetInterface(kTestInterface2);
     itf2->AddSimpleMethodHandler(kTestMethod_StrLen, StrLen);
     itf2->AddSimpleMethodHandlerWithError(kTestMethod_CheckNonEmpty,
                                           CheckNonEmpty);
     DBusInterface* itf3 = dbus_object_->AddOrGetInterface(kTestInterface3);
     base::Callback<void()> noop_callback = base::Bind(NoOp);
     itf3->AddSimpleMethodHandler(kTestMethod_NoOp, noop_callback);
     itf3->AddSimpleMethodHandlerWithErrorAndMessage(
         kTestMethod_WithMessage, base::Bind(&TestWithMessage));
     itf3->AddMethodHandlerWithMessage(kTestMethod_WithMessageAsync,
                                       base::Bind(&TestWithMessageAsync));

     dbus_object_->RegisterAsync(
         AsyncEventSequencer::GetDefaultCompletionAction());
   }

   void ExpectError(dbus::Response* response, const std::string& expected_code) {
     EXPECT_EQ(dbus::Message::MESSAGE_ERROR, response->GetMessageType());
     EXPECT_EQ(expected_code, response->GetErrorName());
   }

   scoped_refptr<dbus::MockBus> bus_;
   scoped_refptr<dbus::MockExportedObject> mock_exported_object_;
   std::unique_ptr<DBusObject> dbus_object_;
   Calc calc_;
 };

 TEST_F(DBusObjectTest, Add) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendInt32(2);
   writer.AppendInt32(3);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   int result;
   ASSERT_TRUE(reader.PopInt32(&result));
   ASSERT_FALSE(reader.HasMoreData());
   ASSERT_EQ(5, result);
 }

 TEST_F(DBusObjectTest, Negate) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Negate);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendInt32(98765);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   int result;
   ASSERT_TRUE(reader.PopInt32(&result));
   ASSERT_FALSE(reader.HasMoreData());
   ASSERT_EQ(-98765, result);
 }

 TEST_F(DBusObjectTest, PositiveSuccess) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Positive);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendDouble(17.5);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   double result;
   ASSERT_TRUE(reader.PopDouble(&result));
   ASSERT_FALSE(reader.HasMoreData());
   ASSERT_DOUBLE_EQ(17.5, result);
 }

 TEST_F(DBusObjectTest, PositiveFailure) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Positive);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendDouble(-23.2);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ExpectError(response.get(), DBUS_ERROR_FAILED);
 }

 TEST_F(DBusObjectTest, AddSubtract) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_AddSubtract);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendInt32(2);
   writer.AppendInt32(3);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   int sum = 0, diff = 0;
   ASSERT_TRUE(reader.PopInt32(&sum));
   ASSERT_TRUE(reader.PopInt32(&diff));
   ASSERT_FALSE(reader.HasMoreData());
   EXPECT_EQ(5, sum);
   EXPECT_EQ(-1, diff);
 }

 TEST_F(DBusObjectTest, StrLen0) {
   dbus::MethodCall method_call(kTestInterface2, kTestMethod_StrLen);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendString("");
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   int result;
   ASSERT_TRUE(reader.PopInt32(&result));
   ASSERT_FALSE(reader.HasMoreData());
   ASSERT_EQ(0, result);
 }

 TEST_F(DBusObjectTest, StrLen4) {
   dbus::MethodCall method_call(kTestInterface2, kTestMethod_StrLen);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendString("test");
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   int result;
   ASSERT_TRUE(reader.PopInt32(&result));
   ASSERT_FALSE(reader.HasMoreData());
   ASSERT_EQ(4, result);
 }

 TEST_F(DBusObjectTest, CheckNonEmpty_Success) {
   dbus::MethodCall method_call(kTestInterface2, kTestMethod_CheckNonEmpty);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendString("test");
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ASSERT_EQ(dbus::Message::MESSAGE_METHOD_RETURN, response->GetMessageType());
   dbus::MessageReader reader(response.get());
   EXPECT_FALSE(reader.HasMoreData());
 }

 TEST_F(DBusObjectTest, CheckNonEmpty_Failure) {
   dbus::MethodCall method_call(kTestInterface2, kTestMethod_CheckNonEmpty);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendString("");
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ASSERT_EQ(dbus::Message::MESSAGE_ERROR, response->GetMessageType());
   ErrorPtr error;
   ExtractMethodCallResults(response.get(), &error);
   ASSERT_NE(nullptr, error.get());
   EXPECT_EQ("test", error->GetDomain());
   EXPECT_EQ("string_empty", error->GetCode());
   EXPECT_EQ("String is empty", error->GetMessage());
 }

 TEST_F(DBusObjectTest, CheckNonEmpty_MissingParams) {
   dbus::MethodCall method_call(kTestInterface2, kTestMethod_CheckNonEmpty);
   method_call.SetSerial(123);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ASSERT_EQ(dbus::Message::MESSAGE_ERROR, response->GetMessageType());
   dbus::MessageReader reader(response.get());
   std::string message;
   ASSERT_TRUE(reader.PopString(&message));
   EXPECT_EQ(DBUS_ERROR_INVALID_ARGS, response->GetErrorName());
   EXPECT_EQ("Too few parameters in a method call", message);
   EXPECT_FALSE(reader.HasMoreData());
 }

 TEST_F(DBusObjectTest, NoOp) {
   dbus::MethodCall method_call(kTestInterface3, kTestMethod_NoOp);
   method_call.SetSerial(123);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   ASSERT_FALSE(reader.HasMoreData());
 }

 TEST_F(DBusObjectTest, TestWithMessage) {
   const std::string sender{":1.2345"};
   dbus::MethodCall method_call(kTestInterface3, kTestMethod_WithMessage);
   method_call.SetSerial(123);
   method_call.SetSender(sender);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   std::string message;
   ASSERT_TRUE(reader.PopString(&message));
   ASSERT_FALSE(reader.HasMoreData());
   EXPECT_EQ(sender, message);
 }

 TEST_F(DBusObjectTest, TestWithMessageAsync) {
   const std::string sender{":6.7890"};
   dbus::MethodCall method_call(kTestInterface3, kTestMethod_WithMessageAsync);
   method_call.SetSerial(123);
   method_call.SetSender(sender);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   std::string message;
   ASSERT_TRUE(reader.PopString(&message));
   ASSERT_FALSE(reader.HasMoreData());
   EXPECT_EQ(sender, message);
 }

 TEST_F(DBusObjectTest, TestRemovedInterface) {
   // Removes the interface to be tested.
   dbus_object_->RemoveInterface(kTestInterface3);

   const std::string sender{":1.2345"};
   dbus::MethodCall method_call(kTestInterface3, kTestMethod_WithMessage);
   method_call.SetSerial(123);
   method_call.SetSender(sender);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   // The response should contain error UnknownInterface since the interface has
   // been intentionally removed.
   EXPECT_EQ(DBUS_ERROR_UNKNOWN_INTERFACE, response->GetErrorName());
 }

 TEST_F(DBusObjectTest, TestInterfaceExportedLate) {
   // Registers a new interface late.
   dbus_object_->ExportInterfaceAsync(kTestInterface4,
                                      base::Bind(&OnInterfaceExported));

   const std::string sender{":1.2345"};
   dbus::MethodCall method_call(kTestInterface4, kTestMethod_WithMessage);
   method_call.SetSerial(123);
   method_call.SetSender(sender);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   // The response should contain error UnknownMethod rather than
   // UnknownInterface since the interface has been registered late.
   EXPECT_EQ(DBUS_ERROR_UNKNOWN_METHOD, response->GetErrorName());
 }

 TEST_F(DBusObjectTest, TooFewParams) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendInt32(2);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ExpectError(response.get(), DBUS_ERROR_INVALID_ARGS);
 }

 TEST_F(DBusObjectTest, TooManyParams) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendInt32(1);
   writer.AppendInt32(2);
   writer.AppendInt32(3);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ExpectError(response.get(), DBUS_ERROR_INVALID_ARGS);
 }

 TEST_F(DBusObjectTest, ParamTypeMismatch) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendInt32(1);
   writer.AppendBool(false);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ExpectError(response.get(), DBUS_ERROR_INVALID_ARGS);
 }

 TEST_F(DBusObjectTest, ParamAsVariant) {
   dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendVariantOfInt32(10);
   writer.AppendVariantOfInt32(3);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   dbus::MessageReader reader(response.get());
   int result;
   ASSERT_TRUE(reader.PopInt32(&result));
   ASSERT_FALSE(reader.HasMoreData());
   ASSERT_EQ(13, result);
 }

 TEST_F(DBusObjectTest, UnknownMethod) {
   dbus::MethodCall method_call(kTestInterface2, kTestMethod_Add);
   method_call.SetSerial(123);
   dbus::MessageWriter writer(&method_call);
   writer.AppendInt32(1);
   writer.AppendBool(false);
   auto response = testing::CallMethod(*dbus_object_, &method_call);
   ExpectError(response.get(), DBUS_ERROR_UNKNOWN_METHOD);
 }

 TEST_F(DBusObjectTest, ShouldReleaseOnlyClaimedInterfaces) {
   const dbus::ObjectPath kObjectManagerPath{std::string{"/"}};
   const dbus::ObjectPath kMethodsExportedOnPath{
       std::string{kMethodsExportedOn}};
   MockExportedObjectManager mock_object_manager{bus_, kObjectManagerPath};
   dbus_object_ = std::unique_ptr<DBusObject>(
       new DBusObject(&mock_object_manager, bus_, kMethodsExportedOnPath));
   EXPECT_CALL(mock_object_manager, ClaimInterface(_, _, _)).Times(0);
   EXPECT_CALL(mock_object_manager, ReleaseInterface(_, _)).Times(0);
   DBusInterface* itf1 = dbus_object_->AddOrGetInterface(kTestInterface1);
   itf1->AddSimpleMethodHandler(
       kTestMethod_Add, base::Unretained(&calc_), &Calc::Add);
   // When we tear down our DBusObject, it should release only interfaces it has
   // previously claimed.  This prevents a check failing inside the
   // ExportedObjectManager.  Since no interfaces have finished exporting
   // handlers, nothing should be released.
   dbus_object_.reset();
 }

 }  // namespace dbus_utils
 }  // namespace brillo
	// Copyright 2014 The Chromium OS 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 <brillo/dbus/dbus_object.h>

	#include <memory>

	#include <base/bind.h>
	#include <brillo/dbus/dbus_object_test_helpers.h>
	#include <brillo/dbus/mock_exported_object_manager.h>
	#include <dbus/message.h>
	#include <dbus/property.h>
	#include <dbus/object_path.h>
	#include <dbus/mock_bus.h>
	#include <dbus/mock_exported_object.h>

	using ::testing::AnyNumber;
	using ::testing::Return;
	using ::testing::Invoke;
	using ::testing::Mock;
	using ::testing::_;

	namespace brillo {
	namespace dbus_utils {

	namespace {

	const char kMethodsExportedOn[] = "/export";

	const char kTestInterface1[] = "org.chromium.Test.MathInterface";
	const char kTestMethod_Add[] = "Add";
	const char kTestMethod_Negate[] = "Negate";
	const char kTestMethod_Positive[] = "Positive";
	const char kTestMethod_AddSubtract[] = "AddSubtract";

	const char kTestInterface2[] = "org.chromium.Test.StringInterface";
	const char kTestMethod_StrLen[] = "StrLen";
	const char kTestMethod_CheckNonEmpty[] = "CheckNonEmpty";

	const char kTestInterface3[] = "org.chromium.Test.NoOpInterface";
	const char kTestMethod_NoOp[] = "NoOp";
	const char kTestMethod_WithMessage[] = "TestWithMessage";
	const char kTestMethod_WithMessageAsync[] = "TestWithMessageAsync";

	const char kTestInterface4[] = "org.chromium.Test.LateInterface";

	struct Calc {
	int Add(int x, int y) { return x + y; }
	int Negate(int x) { return -x; }
	void Positive(std::unique_ptr<DBusMethodResponse<double>> response,
	double x) {
	if (x >= 0.0) {
	response->Return(x);
	return;
	}
	ErrorPtr error;
	Error::AddTo(&error, FROM_HERE, "test", "not_positive",
	"Negative value passed in");
	response->ReplyWithError(error.get());
	}
	void AddSubtract(int x, int y, int* sum, int* diff) {
	*sum = x + y;
	*diff = x - y;
	}
	};

	int StrLen(const std::string& str) {
	return str.size();
	}

	bool CheckNonEmpty(ErrorPtr* error, const std::string& str) {
	if (!str.empty())
	return true;
	Error::AddTo(error, FROM_HERE, "test", "string_empty", "String is empty");
	return false;
	}

	void NoOp() {}

	bool TestWithMessage(ErrorPtr* /* error */,
	dbus::Message* message,
	std::string* str) {
	*str = message->GetSender();
	return true;
	}

	void TestWithMessageAsync(
	std::unique_ptr<DBusMethodResponse<std::string>> response,
	dbus::Message* message) {
	response->Return(message->GetSender());
	}

	void OnInterfaceExported(bool success) {
	// Does nothing.
	}

	} // namespace

	class DBusObjectTest : public ::testing::Test {
	public:
	virtual void SetUp() {
	dbus::Bus::Options options;
	options.bus_type = dbus::Bus::SYSTEM;
	bus_ = new dbus::MockBus(options);
	// By default, don't worry about threading assertions.
	EXPECT_CALL(*bus_, AssertOnOriginThread()).Times(AnyNumber());
	EXPECT_CALL(*bus_, AssertOnDBusThread()).Times(AnyNumber());
	// Use a mock exported object.
	const dbus::ObjectPath kMethodsExportedOnPath{
	std::string{kMethodsExportedOn}};
	mock_exported_object_ =
	new dbus::MockExportedObject(bus_.get(), kMethodsExportedOnPath);
	EXPECT_CALL(*bus_, GetExportedObject(kMethodsExportedOnPath))
	.Times(AnyNumber())
	.WillRepeatedly(Return(mock_exported_object_.get()));
	EXPECT_CALL(*mock_exported_object_, ExportMethod(_, _, _, _))
	.Times(AnyNumber());
	EXPECT_CALL(*mock_exported_object_, Unregister()).Times(1);

	dbus_object_ = std::unique_ptr<DBusObject>(
	new DBusObject(nullptr, bus_, kMethodsExportedOnPath));

	DBusInterface* itf1 = dbus_object_->AddOrGetInterface(kTestInterface1);
	itf1->AddSimpleMethodHandler(
	kTestMethod_Add, base::Unretained(&calc_), &Calc::Add);
	itf1->AddSimpleMethodHandler(
	kTestMethod_Negate, base::Unretained(&calc_), &Calc::Negate);
	itf1->AddMethodHandler(
	kTestMethod_Positive, base::Unretained(&calc_), &Calc::Positive);
	itf1->AddSimpleMethodHandler(
	kTestMethod_AddSubtract, base::Unretained(&calc_), &Calc::AddSubtract);
	DBusInterface* itf2 = dbus_object_->AddOrGetInterface(kTestInterface2);
	itf2->AddSimpleMethodHandler(kTestMethod_StrLen, StrLen);
	itf2->AddSimpleMethodHandlerWithError(kTestMethod_CheckNonEmpty,
	CheckNonEmpty);
	DBusInterface* itf3 = dbus_object_->AddOrGetInterface(kTestInterface3);
	base::Callback<void()> noop_callback = base::Bind(NoOp);
	itf3->AddSimpleMethodHandler(kTestMethod_NoOp, noop_callback);
	itf3->AddSimpleMethodHandlerWithErrorAndMessage(
	kTestMethod_WithMessage, base::Bind(&TestWithMessage));
	itf3->AddMethodHandlerWithMessage(kTestMethod_WithMessageAsync,
	base::Bind(&TestWithMessageAsync));

	dbus_object_->RegisterAsync(
	AsyncEventSequencer::GetDefaultCompletionAction());
	}

	void ExpectError(dbus::Response* response, const std::string& expected_code) {
	EXPECT_EQ(dbus::Message::MESSAGE_ERROR, response->GetMessageType());
	EXPECT_EQ(expected_code, response->GetErrorName());
	}

	scoped_refptr<dbus::MockBus> bus_;
	scoped_refptr<dbus::MockExportedObject> mock_exported_object_;
	std::unique_ptr<DBusObject> dbus_object_;
	Calc calc_;
	};

	TEST_F(DBusObjectTest, Add) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendInt32(2);
	writer.AppendInt32(3);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	int result;
	ASSERT_TRUE(reader.PopInt32(&result));
	ASSERT_FALSE(reader.HasMoreData());
	ASSERT_EQ(5, result);
	}

	TEST_F(DBusObjectTest, Negate) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Negate);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendInt32(98765);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	int result;
	ASSERT_TRUE(reader.PopInt32(&result));
	ASSERT_FALSE(reader.HasMoreData());
	ASSERT_EQ(-98765, result);
	}

	TEST_F(DBusObjectTest, PositiveSuccess) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Positive);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendDouble(17.5);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	double result;
	ASSERT_TRUE(reader.PopDouble(&result));
	ASSERT_FALSE(reader.HasMoreData());
	ASSERT_DOUBLE_EQ(17.5, result);
	}

	TEST_F(DBusObjectTest, PositiveFailure) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Positive);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendDouble(-23.2);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ExpectError(response.get(), DBUS_ERROR_FAILED);
	}

	TEST_F(DBusObjectTest, AddSubtract) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_AddSubtract);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendInt32(2);
	writer.AppendInt32(3);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	int sum = 0, diff = 0;
	ASSERT_TRUE(reader.PopInt32(&sum));
	ASSERT_TRUE(reader.PopInt32(&diff));
	ASSERT_FALSE(reader.HasMoreData());
	EXPECT_EQ(5, sum);
	EXPECT_EQ(-1, diff);
	}

	TEST_F(DBusObjectTest, StrLen0) {
	dbus::MethodCall method_call(kTestInterface2, kTestMethod_StrLen);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendString("");
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	int result;
	ASSERT_TRUE(reader.PopInt32(&result));
	ASSERT_FALSE(reader.HasMoreData());
	ASSERT_EQ(0, result);
	}

	TEST_F(DBusObjectTest, StrLen4) {
	dbus::MethodCall method_call(kTestInterface2, kTestMethod_StrLen);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendString("test");
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	int result;
	ASSERT_TRUE(reader.PopInt32(&result));
	ASSERT_FALSE(reader.HasMoreData());
	ASSERT_EQ(4, result);
	}

	TEST_F(DBusObjectTest, CheckNonEmpty_Success) {
	dbus::MethodCall method_call(kTestInterface2, kTestMethod_CheckNonEmpty);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendString("test");
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ASSERT_EQ(dbus::Message::MESSAGE_METHOD_RETURN, response->GetMessageType());
	dbus::MessageReader reader(response.get());
	EXPECT_FALSE(reader.HasMoreData());
	}

	TEST_F(DBusObjectTest, CheckNonEmpty_Failure) {
	dbus::MethodCall method_call(kTestInterface2, kTestMethod_CheckNonEmpty);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendString("");
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ASSERT_EQ(dbus::Message::MESSAGE_ERROR, response->GetMessageType());
	ErrorPtr error;
	ExtractMethodCallResults(response.get(), &error);
	ASSERT_NE(nullptr, error.get());
	EXPECT_EQ("test", error->GetDomain());
	EXPECT_EQ("string_empty", error->GetCode());
	EXPECT_EQ("String is empty", error->GetMessage());
	}

	TEST_F(DBusObjectTest, CheckNonEmpty_MissingParams) {
	dbus::MethodCall method_call(kTestInterface2, kTestMethod_CheckNonEmpty);
	method_call.SetSerial(123);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ASSERT_EQ(dbus::Message::MESSAGE_ERROR, response->GetMessageType());
	dbus::MessageReader reader(response.get());
	std::string message;
	ASSERT_TRUE(reader.PopString(&message));
	EXPECT_EQ(DBUS_ERROR_INVALID_ARGS, response->GetErrorName());
	EXPECT_EQ("Too few parameters in a method call", message);
	EXPECT_FALSE(reader.HasMoreData());
	}

	TEST_F(DBusObjectTest, NoOp) {
	dbus::MethodCall method_call(kTestInterface3, kTestMethod_NoOp);
	method_call.SetSerial(123);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	ASSERT_FALSE(reader.HasMoreData());
	}

	TEST_F(DBusObjectTest, TestWithMessage) {
	const std::string sender{":1.2345"};
	dbus::MethodCall method_call(kTestInterface3, kTestMethod_WithMessage);
	method_call.SetSerial(123);
	method_call.SetSender(sender);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	std::string message;
	ASSERT_TRUE(reader.PopString(&message));
	ASSERT_FALSE(reader.HasMoreData());
	EXPECT_EQ(sender, message);
	}

	TEST_F(DBusObjectTest, TestWithMessageAsync) {
	const std::string sender{":6.7890"};
	dbus::MethodCall method_call(kTestInterface3, kTestMethod_WithMessageAsync);
	method_call.SetSerial(123);
	method_call.SetSender(sender);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	std::string message;
	ASSERT_TRUE(reader.PopString(&message));
	ASSERT_FALSE(reader.HasMoreData());
	EXPECT_EQ(sender, message);
	}

	TEST_F(DBusObjectTest, TestRemovedInterface) {
	// Removes the interface to be tested.
	dbus_object_->RemoveInterface(kTestInterface3);

	const std::string sender{":1.2345"};
	dbus::MethodCall method_call(kTestInterface3, kTestMethod_WithMessage);
	method_call.SetSerial(123);
	method_call.SetSender(sender);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	// The response should contain error UnknownInterface since the interface has
	// been intentionally removed.
	EXPECT_EQ(DBUS_ERROR_UNKNOWN_INTERFACE, response->GetErrorName());
	}

	TEST_F(DBusObjectTest, TestInterfaceExportedLate) {
	// Registers a new interface late.
	dbus_object_->ExportInterfaceAsync(kTestInterface4,
	base::Bind(&OnInterfaceExported));

	const std::string sender{":1.2345"};
	dbus::MethodCall method_call(kTestInterface4, kTestMethod_WithMessage);
	method_call.SetSerial(123);
	method_call.SetSender(sender);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	// The response should contain error UnknownMethod rather than
	// UnknownInterface since the interface has been registered late.
	EXPECT_EQ(DBUS_ERROR_UNKNOWN_METHOD, response->GetErrorName());
	}

	TEST_F(DBusObjectTest, TooFewParams) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendInt32(2);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ExpectError(response.get(), DBUS_ERROR_INVALID_ARGS);
	}

	TEST_F(DBusObjectTest, TooManyParams) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendInt32(1);
	writer.AppendInt32(2);
	writer.AppendInt32(3);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ExpectError(response.get(), DBUS_ERROR_INVALID_ARGS);
	}

	TEST_F(DBusObjectTest, ParamTypeMismatch) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendInt32(1);
	writer.AppendBool(false);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ExpectError(response.get(), DBUS_ERROR_INVALID_ARGS);
	}

	TEST_F(DBusObjectTest, ParamAsVariant) {
	dbus::MethodCall method_call(kTestInterface1, kTestMethod_Add);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendVariantOfInt32(10);
	writer.AppendVariantOfInt32(3);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	dbus::MessageReader reader(response.get());
	int result;
	ASSERT_TRUE(reader.PopInt32(&result));
	ASSERT_FALSE(reader.HasMoreData());
	ASSERT_EQ(13, result);
	}

	TEST_F(DBusObjectTest, UnknownMethod) {
	dbus::MethodCall method_call(kTestInterface2, kTestMethod_Add);
	method_call.SetSerial(123);
	dbus::MessageWriter writer(&method_call);
	writer.AppendInt32(1);
	writer.AppendBool(false);
	auto response = testing::CallMethod(*dbus_object_, &method_call);
	ExpectError(response.get(), DBUS_ERROR_UNKNOWN_METHOD);
	}

	TEST_F(DBusObjectTest, ShouldReleaseOnlyClaimedInterfaces) {
	const dbus::ObjectPath kObjectManagerPath{std::string{"/"}};
	const dbus::ObjectPath kMethodsExportedOnPath{
	std::string{kMethodsExportedOn}};
	MockExportedObjectManager mock_object_manager{bus_, kObjectManagerPath};
	dbus_object_ = std::unique_ptr<DBusObject>(
	new DBusObject(&mock_object_manager, bus_, kMethodsExportedOnPath));
	EXPECT_CALL(mock_object_manager, ClaimInterface(_, _, _)).Times(0);
	EXPECT_CALL(mock_object_manager, ReleaseInterface(_, _)).Times(0);
	DBusInterface* itf1 = dbus_object_->AddOrGetInterface(kTestInterface1);
	itf1->AddSimpleMethodHandler(
	kTestMethod_Add, base::Unretained(&calc_), &Calc::Add);
	// When we tear down our DBusObject, it should release only interfaces it has
	// previously claimed. This prevents a check failing inside the
	// ExportedObjectManager. Since no interfaces have finished exporting
	// handlers, nothing should be released.
	dbus_object_.reset();
	}

	} // namespace dbus_utils
	} // namespace brillo