dbus/signal_sender_verification_unittest.cc - platform/external/libchrome - Gitiles

 // 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 <memory>

 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "dbus/bus.h"
 #include "dbus/message.h"
 #include "dbus/object_proxy.h"
 #include "dbus/test_service.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace dbus {

 // The test for sender verification in ObjectProxy.
 class SignalSenderVerificationTest : public testing::Test {
  public:
   SignalSenderVerificationTest()
       : on_name_owner_changed_called_(false),
         on_ownership_called_(false) {
   }

   void SetUp() override {
     base::StatisticsRecorder::Initialize();

     // Make the main thread not to allow IO.
     base::ThreadRestrictions::SetIOAllowed(false);

     // Start the D-Bus thread.
     dbus_thread_.reset(new base::Thread("D-Bus Thread"));
     base::Thread::Options thread_options;
     thread_options.message_loop_type = base::MessageLoop::TYPE_IO;
     ASSERT_TRUE(dbus_thread_->StartWithOptions(thread_options));

     // Create the test service, using the D-Bus thread.
     TestService::Options options;
     options.dbus_task_runner = dbus_thread_->task_runner();
     test_service_.reset(new TestService(options));

     // Create the client, using the D-Bus thread.
     Bus::Options bus_options;
     bus_options.bus_type = Bus::SESSION;
     bus_options.connection_type = Bus::PRIVATE;
     bus_options.dbus_task_runner = dbus_thread_->task_runner();
     bus_ = new Bus(bus_options);
     object_proxy_ = bus_->GetObjectProxy(
         test_service_->service_name(),
         ObjectPath("/org/chromium/TestObject"));
     ASSERT_TRUE(bus_->HasDBusThread());

     object_proxy_->SetNameOwnerChangedCallback(
         base::Bind(&SignalSenderVerificationTest::OnNameOwnerChanged,
                    base::Unretained(this),
                    &on_name_owner_changed_called_));

     // Connect to the "Test" signal of "org.chromium.TestInterface" from
     // the remote object.
     object_proxy_->ConnectToSignal(
         "org.chromium.TestInterface",
         "Test",
         base::Bind(&SignalSenderVerificationTest::OnTestSignal,
                    base::Unretained(this)),
         base::Bind(&SignalSenderVerificationTest::OnConnected,
                    base::Unretained(this)));
     // Wait until the object proxy is connected to the signal.
     run_loop_.reset(new base::RunLoop);
     run_loop_->Run();

     // Start the test service.
     ASSERT_TRUE(test_service_->StartService());
     ASSERT_TRUE(test_service_->WaitUntilServiceIsStarted());
     ASSERT_TRUE(test_service_->HasDBusThread());
     ASSERT_TRUE(test_service_->has_ownership());

     // Same setup for the second TestService. This service should not have the
     // ownership of the name at this point.
     options.service_name = test_service_->service_name();
     test_service2_.reset(new TestService(options));
     ASSERT_TRUE(test_service2_->StartService());
     ASSERT_TRUE(test_service2_->WaitUntilServiceIsStarted());
     ASSERT_TRUE(test_service2_->HasDBusThread());
     ASSERT_FALSE(test_service2_->has_ownership());

     // The name should be owned and known at this point.
     if (!on_name_owner_changed_called_) {
       run_loop_.reset(new base::RunLoop);
       run_loop_->Run();
     }
     ASSERT_FALSE(latest_name_owner_.empty());
   }

   void TearDown() override {
     bus_->ShutdownOnDBusThreadAndBlock();

     // Shut down the service.
     test_service_->ShutdownAndBlock();
     test_service2_->ShutdownAndBlock();

     // Reset to the default.
     base::ThreadRestrictions::SetIOAllowed(true);

     // Stopping a thread is considered an IO operation, so do this after
     // allowing IO.
     test_service_->Stop();
     test_service2_->Stop();
   }

   void OnOwnership(bool expected, bool success) {
     ASSERT_EQ(expected, success);
     // PostTask to quit the MessageLoop as this is called from D-Bus thread.
     message_loop_.task_runner()->PostTask(
         FROM_HERE,
         base::Bind(&SignalSenderVerificationTest::OnOwnershipInternal,
                    base::Unretained(this)));
   }

   void OnOwnershipInternal() {
     on_ownership_called_ = true;
     run_loop_->Quit();
   }

   void OnNameOwnerChanged(bool* called_flag,
                           const std::string& old_owner,
                           const std::string& new_owner) {
     latest_name_owner_ = new_owner;
     *called_flag = true;
     run_loop_->Quit();
   }

   // Called when the "Test" signal is received, in the main thread.
   // Copy the string payload to |test_signal_string_|.
   void OnTestSignal(Signal* signal) {
     MessageReader reader(signal);
     ASSERT_TRUE(reader.PopString(&test_signal_string_));
     run_loop_->Quit();
   }

   // Called when connected to the signal.
   void OnConnected(const std::string& interface_name,
                    const std::string& signal_name,
                    bool success) {
     ASSERT_TRUE(success);
     run_loop_->Quit();
   }

  protected:
   // Wait for the hey signal to be received.
   void WaitForTestSignal() {
     // OnTestSignal() will quit the message loop.
     run_loop_.reset(new base::RunLoop);
     run_loop_->Run();
   }

   // Stopping a thread is considered an IO operation, so we need to fiddle with
   // thread restrictions before and after calling Stop() on a TestService.
   void SafeServiceStop(TestService* test_service) {
     base::ThreadRestrictions::SetIOAllowed(true);
     test_service->Stop();
     base::ThreadRestrictions::SetIOAllowed(false);
   }

   base::MessageLoop message_loop_;
   std::unique_ptr<base::RunLoop> run_loop_;
   std::unique_ptr<base::Thread> dbus_thread_;
   scoped_refptr<Bus> bus_;
   ObjectProxy* object_proxy_;
   std::unique_ptr<TestService> test_service_;
   std::unique_ptr<TestService> test_service2_;
   // Text message from "Test" signal.
   std::string test_signal_string_;

   // The known latest name owner of TestService. Updated in OnNameOwnerChanged.
   std::string latest_name_owner_;

   // Boolean flags to record callback calls.
   bool on_name_owner_changed_called_;
   bool on_ownership_called_;
 };

 TEST_F(SignalSenderVerificationTest, TestSignalAccepted) {
   const char kMessage[] = "hello, world";
   // Send the test signal from the exported object.
   test_service_->SendTestSignal(kMessage);
   // Receive the signal with the object proxy. The signal is handled in
   // SignalSenderVerificationTest::OnTestSignal() in the main thread.
   WaitForTestSignal();
   ASSERT_EQ(kMessage, test_signal_string_);
 }

 TEST_F(SignalSenderVerificationTest, TestSignalRejected) {
   const char kNewMessage[] = "hello, new world";
   test_service2_->SendTestSignal(kNewMessage);

   // This test tests that our callback is NOT called by the ObjectProxy.
   // Sleep to have message delivered to the client via the D-Bus service.
   base::PlatformThread::Sleep(TestTimeouts::tiny_timeout());

   ASSERT_EQ("", test_signal_string_);
 }

 TEST_F(SignalSenderVerificationTest, TestOwnerChanged) {
   const char kMessage[] = "hello, world";

   // Send the test signal from the exported object.
   test_service_->SendTestSignal(kMessage);
   // Receive the signal with the object proxy. The signal is handled in
   // SignalSenderVerificationTest::OnTestSignal() in the main thread.
   WaitForTestSignal();
   ASSERT_EQ(kMessage, test_signal_string_);

   // Release and acquire the name ownership.
   // latest_name_owner_ should be non empty as |test_service_| owns the name.
   ASSERT_FALSE(latest_name_owner_.empty());
   test_service_->ShutdownAndBlock();
   // OnNameOwnerChanged will PostTask to quit the message loop.
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();
   // latest_name_owner_ should be empty as the owner is gone.
   ASSERT_TRUE(latest_name_owner_.empty());

   // Reset the flag as NameOwnerChanged is already received in setup.
   on_name_owner_changed_called_ = false;
   on_ownership_called_ = false;
   test_service2_->RequestOwnership(
       base::Bind(&SignalSenderVerificationTest::OnOwnership,
                  base::Unretained(this), true));
   // Both of OnNameOwnerChanged() and OnOwnership() should quit the MessageLoop,
   // but there's no expected order of those 2 event.
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();
   if (!on_name_owner_changed_called_ || !on_ownership_called_) {
     run_loop_.reset(new base::RunLoop);
     run_loop_->Run();
   }
   ASSERT_TRUE(on_name_owner_changed_called_);
   ASSERT_TRUE(on_ownership_called_);

   // latest_name_owner_ becomes non empty as the new owner appears.
   ASSERT_FALSE(latest_name_owner_.empty());

   // Now the second service owns the name.
   const char kNewMessage[] = "hello, new world";

   test_service2_->SendTestSignal(kNewMessage);
   WaitForTestSignal();
   ASSERT_EQ(kNewMessage, test_signal_string_);
 }

 TEST_F(SignalSenderVerificationTest, TestOwnerStealing) {
   // Release and acquire the name ownership.
   // latest_name_owner_ should be non empty as |test_service_| owns the name.
   ASSERT_FALSE(latest_name_owner_.empty());
   test_service_->ShutdownAndBlock();
   // OnNameOwnerChanged will PostTask to quit the message loop.
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();
   // latest_name_owner_ should be empty as the owner is gone.
   ASSERT_TRUE(latest_name_owner_.empty());
   // Reset the flag as NameOwnerChanged is already received in setup.
   on_name_owner_changed_called_ = false;

   // Start a test service that allows theft, using the D-Bus thread.
   TestService::Options options;
   options.dbus_task_runner = dbus_thread_->task_runner();
   options.request_ownership_options = Bus::REQUIRE_PRIMARY_ALLOW_REPLACEMENT;
   options.service_name = test_service_->service_name();
   TestService stealable_test_service(options);
   ASSERT_TRUE(stealable_test_service.StartService());
   ASSERT_TRUE(stealable_test_service.WaitUntilServiceIsStarted());
   ASSERT_TRUE(stealable_test_service.HasDBusThread());
   ASSERT_TRUE(stealable_test_service.has_ownership());

   // OnNameOwnerChanged will PostTask to quit the message loop.
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();

   // Send a signal to check that the service is correctly owned.
   const char kMessage[] = "hello, world";

   // Send the test signal from the exported object.
   stealable_test_service.SendTestSignal(kMessage);
   // Receive the signal with the object proxy. The signal is handled in
   // SignalSenderVerificationTest::OnTestSignal() in the main thread.
   WaitForTestSignal();
   ASSERT_EQ(kMessage, test_signal_string_);

   // Reset the flag as NameOwnerChanged was called above.
   on_name_owner_changed_called_ = false;
   test_service2_->RequestOwnership(
       base::Bind(&SignalSenderVerificationTest::OnOwnership,
                  base::Unretained(this), true));
   // Both of OnNameOwnerChanged() and OnOwnership() should quit the MessageLoop,
   // but there's no expected order of those 2 event.
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();
   if (!on_name_owner_changed_called_ || !on_ownership_called_) {
     run_loop_.reset(new base::RunLoop);
     run_loop_->Run();
   }
   ASSERT_TRUE(on_name_owner_changed_called_);
   ASSERT_TRUE(on_ownership_called_);

   // Now the second service owns the name.
   const char kNewMessage[] = "hello, new world";

   test_service2_->SendTestSignal(kNewMessage);
   WaitForTestSignal();
   ASSERT_EQ(kNewMessage, test_signal_string_);

   SafeServiceStop(&stealable_test_service);
 }

 // Fails on Linux ChromiumOS Tests
 TEST_F(SignalSenderVerificationTest, DISABLED_TestMultipleObjects) {
   const char kMessage[] = "hello, world";

   ObjectProxy* object_proxy2 = bus_->GetObjectProxy(
       test_service_->service_name(),
       ObjectPath("/org/chromium/DifferentObject"));

   bool second_name_owner_changed_called = false;
   object_proxy2->SetNameOwnerChangedCallback(
       base::Bind(&SignalSenderVerificationTest::OnNameOwnerChanged,
                  base::Unretained(this),
                  &second_name_owner_changed_called));

   // Connect to a signal on the additional remote object to trigger the
   // name owner matching.
   object_proxy2->ConnectToSignal(
       "org.chromium.DifferentTestInterface",
       "Test",
       base::Bind(&SignalSenderVerificationTest::OnTestSignal,
                  base::Unretained(this)),
       base::Bind(&SignalSenderVerificationTest::OnConnected,
                  base::Unretained(this)));
   // Wait until the object proxy is connected to the signal.
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();

   // Send the test signal from the exported object.
   test_service_->SendTestSignal(kMessage);
   // Receive the signal with the object proxy. The signal is handled in
   // SignalSenderVerificationTest::OnTestSignal() in the main thread.
   WaitForTestSignal();
   ASSERT_EQ(kMessage, test_signal_string_);

   // Release and acquire the name ownership.
   // latest_name_owner_ should be non empty as |test_service_| owns the name.
   ASSERT_FALSE(latest_name_owner_.empty());
   test_service_->ShutdownAndBlock();
   // OnNameOwnerChanged will PostTask to quit the message loop.
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();
   // latest_name_owner_ should be empty as the owner is gone.
   ASSERT_TRUE(latest_name_owner_.empty());

   // Reset the flag as NameOwnerChanged is already received in setup.
   on_name_owner_changed_called_ = false;
   second_name_owner_changed_called = false;
   test_service2_->RequestOwnership(
       base::Bind(&SignalSenderVerificationTest::OnOwnership,
                  base::Unretained(this), true));
   // Both of OnNameOwnerChanged() and OnOwnership() should quit the MessageLoop,
   // but there's no expected order of those 2 event.
   while (!on_name_owner_changed_called_ || !second_name_owner_changed_called ||
          !on_ownership_called_) {
     run_loop_.reset(new base::RunLoop);
     run_loop_->Run();
   }
   ASSERT_TRUE(on_name_owner_changed_called_);
   ASSERT_TRUE(second_name_owner_changed_called);
   ASSERT_TRUE(on_ownership_called_);

   // latest_name_owner_ becomes non empty as the new owner appears.
   ASSERT_FALSE(latest_name_owner_.empty());

   // Now the second service owns the name.
   const char kNewMessage[] = "hello, new world";

   test_service2_->SendTestSignal(kNewMessage);
   WaitForTestSignal();
   ASSERT_EQ(kNewMessage, test_signal_string_);
 }

 }  // namespace dbus
	// 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 <memory>

	#include "base/bind.h"
	#include "base/message_loop/message_loop.h"
	#include "base/metrics/histogram_macros.h"
	#include "base/metrics/histogram_samples.h"
	#include "base/metrics/statistics_recorder.h"
	#include "base/run_loop.h"
	#include "base/single_thread_task_runner.h"
	#include "base/test/test_timeouts.h"
	#include "base/threading/platform_thread.h"
	#include "base/threading/thread_restrictions.h"
	#include "dbus/bus.h"
	#include "dbus/message.h"
	#include "dbus/object_proxy.h"
	#include "dbus/test_service.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace dbus {

	// The test for sender verification in ObjectProxy.
	class SignalSenderVerificationTest : public testing::Test {
	public:
	SignalSenderVerificationTest()
	: on_name_owner_changed_called_(false),
	on_ownership_called_(false) {
	}

	void SetUp() override {
	base::StatisticsRecorder::Initialize();

	// Make the main thread not to allow IO.
	base::ThreadRestrictions::SetIOAllowed(false);

	// Start the D-Bus thread.
	dbus_thread_.reset(new base::Thread("D-Bus Thread"));
	base::Thread::Options thread_options;
	thread_options.message_loop_type = base::MessageLoop::TYPE_IO;
	ASSERT_TRUE(dbus_thread_->StartWithOptions(thread_options));

	// Create the test service, using the D-Bus thread.
	TestService::Options options;
	options.dbus_task_runner = dbus_thread_->task_runner();
	test_service_.reset(new TestService(options));

	// Create the client, using the D-Bus thread.
	Bus::Options bus_options;
	bus_options.bus_type = Bus::SESSION;
	bus_options.connection_type = Bus::PRIVATE;
	bus_options.dbus_task_runner = dbus_thread_->task_runner();
	bus_ = new Bus(bus_options);
	object_proxy_ = bus_->GetObjectProxy(
	test_service_->service_name(),
	ObjectPath("/org/chromium/TestObject"));
	ASSERT_TRUE(bus_->HasDBusThread());

	object_proxy_->SetNameOwnerChangedCallback(
	base::Bind(&SignalSenderVerificationTest::OnNameOwnerChanged,
	base::Unretained(this),
	&on_name_owner_changed_called_));

	// Connect to the "Test" signal of "org.chromium.TestInterface" from
	// the remote object.
	object_proxy_->ConnectToSignal(
	"org.chromium.TestInterface",
	"Test",
	base::Bind(&SignalSenderVerificationTest::OnTestSignal,
	base::Unretained(this)),
	base::Bind(&SignalSenderVerificationTest::OnConnected,
	base::Unretained(this)));
	// Wait until the object proxy is connected to the signal.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();

	// Start the test service.
	ASSERT_TRUE(test_service_->StartService());
	ASSERT_TRUE(test_service_->WaitUntilServiceIsStarted());
	ASSERT_TRUE(test_service_->HasDBusThread());
	ASSERT_TRUE(test_service_->has_ownership());

	// Same setup for the second TestService. This service should not have the
	// ownership of the name at this point.
	options.service_name = test_service_->service_name();
	test_service2_.reset(new TestService(options));
	ASSERT_TRUE(test_service2_->StartService());
	ASSERT_TRUE(test_service2_->WaitUntilServiceIsStarted());
	ASSERT_TRUE(test_service2_->HasDBusThread());
	ASSERT_FALSE(test_service2_->has_ownership());

	// The name should be owned and known at this point.
	if (!on_name_owner_changed_called_) {
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	}
	ASSERT_FALSE(latest_name_owner_.empty());
	}

	void TearDown() override {
	bus_->ShutdownOnDBusThreadAndBlock();

	// Shut down the service.
	test_service_->ShutdownAndBlock();
	test_service2_->ShutdownAndBlock();

	// Reset to the default.
	base::ThreadRestrictions::SetIOAllowed(true);

	// Stopping a thread is considered an IO operation, so do this after
	// allowing IO.
	test_service_->Stop();
	test_service2_->Stop();
	}

	void OnOwnership(bool expected, bool success) {
	ASSERT_EQ(expected, success);
	// PostTask to quit the MessageLoop as this is called from D-Bus thread.
	message_loop_.task_runner()->PostTask(
	FROM_HERE,
	base::Bind(&SignalSenderVerificationTest::OnOwnershipInternal,
	base::Unretained(this)));
	}

	void OnOwnershipInternal() {
	on_ownership_called_ = true;
	run_loop_->Quit();
	}

	void OnNameOwnerChanged(bool* called_flag,
	const std::string& old_owner,
	const std::string& new_owner) {
	latest_name_owner_ = new_owner;
	*called_flag = true;
	run_loop_->Quit();
	}

	// Called when the "Test" signal is received, in the main thread.
	// Copy the string payload to \|test_signal_string_\|.
	void OnTestSignal(Signal* signal) {
	MessageReader reader(signal);
	ASSERT_TRUE(reader.PopString(&test_signal_string_));
	run_loop_->Quit();
	}

	// Called when connected to the signal.
	void OnConnected(const std::string& interface_name,
	const std::string& signal_name,
	bool success) {
	ASSERT_TRUE(success);
	run_loop_->Quit();
	}

	protected:
	// Wait for the hey signal to be received.
	void WaitForTestSignal() {
	// OnTestSignal() will quit the message loop.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	}

	// Stopping a thread is considered an IO operation, so we need to fiddle with
	// thread restrictions before and after calling Stop() on a TestService.
	void SafeServiceStop(TestService* test_service) {
	base::ThreadRestrictions::SetIOAllowed(true);
	test_service->Stop();
	base::ThreadRestrictions::SetIOAllowed(false);
	}

	base::MessageLoop message_loop_;
	std::unique_ptr<base::RunLoop> run_loop_;
	std::unique_ptr<base::Thread> dbus_thread_;
	scoped_refptr<Bus> bus_;
	ObjectProxy* object_proxy_;
	std::unique_ptr<TestService> test_service_;
	std::unique_ptr<TestService> test_service2_;
	// Text message from "Test" signal.
	std::string test_signal_string_;

	// The known latest name owner of TestService. Updated in OnNameOwnerChanged.
	std::string latest_name_owner_;

	// Boolean flags to record callback calls.
	bool on_name_owner_changed_called_;
	bool on_ownership_called_;
	};

	TEST_F(SignalSenderVerificationTest, TestSignalAccepted) {
	const char kMessage[] = "hello, world";
	// Send the test signal from the exported object.
	test_service_->SendTestSignal(kMessage);
	// Receive the signal with the object proxy. The signal is handled in
	// SignalSenderVerificationTest::OnTestSignal() in the main thread.
	WaitForTestSignal();
	ASSERT_EQ(kMessage, test_signal_string_);
	}

	TEST_F(SignalSenderVerificationTest, TestSignalRejected) {
	const char kNewMessage[] = "hello, new world";
	test_service2_->SendTestSignal(kNewMessage);

	// This test tests that our callback is NOT called by the ObjectProxy.
	// Sleep to have message delivered to the client via the D-Bus service.
	base::PlatformThread::Sleep(TestTimeouts::tiny_timeout());

	ASSERT_EQ("", test_signal_string_);
	}

	TEST_F(SignalSenderVerificationTest, TestOwnerChanged) {
	const char kMessage[] = "hello, world";

	// Send the test signal from the exported object.
	test_service_->SendTestSignal(kMessage);
	// Receive the signal with the object proxy. The signal is handled in
	// SignalSenderVerificationTest::OnTestSignal() in the main thread.
	WaitForTestSignal();
	ASSERT_EQ(kMessage, test_signal_string_);

	// Release and acquire the name ownership.
	// latest_name_owner_ should be non empty as \|test_service_\| owns the name.
	ASSERT_FALSE(latest_name_owner_.empty());
	test_service_->ShutdownAndBlock();
	// OnNameOwnerChanged will PostTask to quit the message loop.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	// latest_name_owner_ should be empty as the owner is gone.
	ASSERT_TRUE(latest_name_owner_.empty());

	// Reset the flag as NameOwnerChanged is already received in setup.
	on_name_owner_changed_called_ = false;
	on_ownership_called_ = false;
	test_service2_->RequestOwnership(
	base::Bind(&SignalSenderVerificationTest::OnOwnership,
	base::Unretained(this), true));
	// Both of OnNameOwnerChanged() and OnOwnership() should quit the MessageLoop,
	// but there's no expected order of those 2 event.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	if (!on_name_owner_changed_called_ \|\| !on_ownership_called_) {
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	}
	ASSERT_TRUE(on_name_owner_changed_called_);
	ASSERT_TRUE(on_ownership_called_);

	// latest_name_owner_ becomes non empty as the new owner appears.
	ASSERT_FALSE(latest_name_owner_.empty());

	// Now the second service owns the name.
	const char kNewMessage[] = "hello, new world";

	test_service2_->SendTestSignal(kNewMessage);
	WaitForTestSignal();
	ASSERT_EQ(kNewMessage, test_signal_string_);
	}

	TEST_F(SignalSenderVerificationTest, TestOwnerStealing) {
	// Release and acquire the name ownership.
	// latest_name_owner_ should be non empty as \|test_service_\| owns the name.
	ASSERT_FALSE(latest_name_owner_.empty());
	test_service_->ShutdownAndBlock();
	// OnNameOwnerChanged will PostTask to quit the message loop.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	// latest_name_owner_ should be empty as the owner is gone.
	ASSERT_TRUE(latest_name_owner_.empty());
	// Reset the flag as NameOwnerChanged is already received in setup.
	on_name_owner_changed_called_ = false;

	// Start a test service that allows theft, using the D-Bus thread.
	TestService::Options options;
	options.dbus_task_runner = dbus_thread_->task_runner();
	options.request_ownership_options = Bus::REQUIRE_PRIMARY_ALLOW_REPLACEMENT;
	options.service_name = test_service_->service_name();
	TestService stealable_test_service(options);
	ASSERT_TRUE(stealable_test_service.StartService());
	ASSERT_TRUE(stealable_test_service.WaitUntilServiceIsStarted());
	ASSERT_TRUE(stealable_test_service.HasDBusThread());
	ASSERT_TRUE(stealable_test_service.has_ownership());

	// OnNameOwnerChanged will PostTask to quit the message loop.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();

	// Send a signal to check that the service is correctly owned.
	const char kMessage[] = "hello, world";

	// Send the test signal from the exported object.
	stealable_test_service.SendTestSignal(kMessage);
	// Receive the signal with the object proxy. The signal is handled in
	// SignalSenderVerificationTest::OnTestSignal() in the main thread.
	WaitForTestSignal();
	ASSERT_EQ(kMessage, test_signal_string_);

	// Reset the flag as NameOwnerChanged was called above.
	on_name_owner_changed_called_ = false;
	test_service2_->RequestOwnership(
	base::Bind(&SignalSenderVerificationTest::OnOwnership,
	base::Unretained(this), true));
	// Both of OnNameOwnerChanged() and OnOwnership() should quit the MessageLoop,
	// but there's no expected order of those 2 event.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	if (!on_name_owner_changed_called_ \|\| !on_ownership_called_) {
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	}
	ASSERT_TRUE(on_name_owner_changed_called_);
	ASSERT_TRUE(on_ownership_called_);

	// Now the second service owns the name.
	const char kNewMessage[] = "hello, new world";

	test_service2_->SendTestSignal(kNewMessage);
	WaitForTestSignal();
	ASSERT_EQ(kNewMessage, test_signal_string_);

	SafeServiceStop(&stealable_test_service);
	}

	// Fails on Linux ChromiumOS Tests
	TEST_F(SignalSenderVerificationTest, DISABLED_TestMultipleObjects) {
	const char kMessage[] = "hello, world";

	ObjectProxy* object_proxy2 = bus_->GetObjectProxy(
	test_service_->service_name(),
	ObjectPath("/org/chromium/DifferentObject"));

	bool second_name_owner_changed_called = false;
	object_proxy2->SetNameOwnerChangedCallback(
	base::Bind(&SignalSenderVerificationTest::OnNameOwnerChanged,
	base::Unretained(this),
	&second_name_owner_changed_called));

	// Connect to a signal on the additional remote object to trigger the
	// name owner matching.
	object_proxy2->ConnectToSignal(
	"org.chromium.DifferentTestInterface",
	"Test",
	base::Bind(&SignalSenderVerificationTest::OnTestSignal,
	base::Unretained(this)),
	base::Bind(&SignalSenderVerificationTest::OnConnected,
	base::Unretained(this)));
	// Wait until the object proxy is connected to the signal.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();

	// Send the test signal from the exported object.
	test_service_->SendTestSignal(kMessage);
	// Receive the signal with the object proxy. The signal is handled in
	// SignalSenderVerificationTest::OnTestSignal() in the main thread.
	WaitForTestSignal();
	ASSERT_EQ(kMessage, test_signal_string_);

	// Release and acquire the name ownership.
	// latest_name_owner_ should be non empty as \|test_service_\| owns the name.
	ASSERT_FALSE(latest_name_owner_.empty());
	test_service_->ShutdownAndBlock();
	// OnNameOwnerChanged will PostTask to quit the message loop.
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	// latest_name_owner_ should be empty as the owner is gone.
	ASSERT_TRUE(latest_name_owner_.empty());

	// Reset the flag as NameOwnerChanged is already received in setup.
	on_name_owner_changed_called_ = false;
	second_name_owner_changed_called = false;
	test_service2_->RequestOwnership(
	base::Bind(&SignalSenderVerificationTest::OnOwnership,
	base::Unretained(this), true));
	// Both of OnNameOwnerChanged() and OnOwnership() should quit the MessageLoop,
	// but there's no expected order of those 2 event.
	while (!on_name_owner_changed_called_ \|\| !second_name_owner_changed_called \|\|
	!on_ownership_called_) {
	run_loop_.reset(new base::RunLoop);
	run_loop_->Run();
	}
	ASSERT_TRUE(on_name_owner_changed_called_);
	ASSERT_TRUE(second_name_owner_changed_called);
	ASSERT_TRUE(on_ownership_called_);

	// latest_name_owner_ becomes non empty as the new owner appears.
	ASSERT_FALSE(latest_name_owner_.empty());

	// Now the second service owns the name.
	const char kNewMessage[] = "hello, new world";

	test_service2_->SendTestSignal(kNewMessage);
	WaitForTestSignal();
	ASSERT_EQ(kNewMessage, test_signal_string_);
	}

	} // namespace dbus