Move IceTransport tests to ice_transport_unittest.cc

remoting/protocol/ice_transport_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 "remoting/protocol/ice_transport.h"
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
+#include "jingle/glue/thread_wrapper.h"
+#include "net/url_request/url_request_context_getter.h"
+#include "remoting/protocol/chromium_port_allocator.h"
+#include "remoting/protocol/connection_tester.h"
+#include "remoting/protocol/fake_authenticator.h"
+#include "remoting/protocol/p2p_stream_socket.h"
+#include "remoting/protocol/stream_channel_factory.h"
+#include "remoting/signaling/fake_signal_strategy.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
+
+using testing::_;
+
+namespace remoting {
+namespace protocol {
+
+namespace {
+
+// Send 100 messages 1024 bytes each. UDP messages are sent with 10ms delay
+// between messages (about 1 second for 100 messages).
+const int kMessageSize = 1024;
+const int kMessages = 100;
+const char kChannelName[] = "test_channel";
+
+ACTION_P(QuitRunLoop, run_loop) {
+  run_loop->Quit();
+}
+
+ACTION_P2(QuitRunLoopOnCounter, run_loop, counter) {
+  --(*counter);
+  EXPECT_GE(*counter, 0);
+  if (*counter == 0)
+    run_loop->Quit();
+}
+
+class MockChannelCreatedCallback {
+ public:
+  MOCK_METHOD1(OnDone, void(P2PStreamSocket* socket));
+};
+
+class TestTransportEventHandler : public Transport::EventHandler {
+ public:
+  typedef base::Callback<void(scoped_ptr<buzz::XmlElement> message)>
+      TransportInfoCallback;
+  typedef base::Callback<void(ErrorCode error)> ErrorCallback;
+
+  TestTransportEventHandler() {}
+  ~TestTransportEventHandler() {}
+
+  // Both callback must be set before the test handler is passed to a Transport
+  // object.
+  void set_transport_info_callback(const TransportInfoCallback& callback) {
+    transport_info_callback_ = callback;
+  }
+  void set_connected_callback(const base::Closure& callback) {
+    connected_callback_ = callback;
+  }
+  void set_error_callback(const ErrorCallback& callback) {
+    error_callback_ = callback;
+  }
+
+  // Transport::EventHandler interface.
+  void OnOutgoingTransportInfo(scoped_ptr<buzz::XmlElement> message) override {
+    transport_info_callback_.Run(message.Pass());
+  }
+  void OnTransportRouteChange(const std::string& channel_name,
+                              const TransportRoute& route) override {}
+  void OnTransportConnected() override {
+    connected_callback_.Run();
+  }
+  void OnTransportError(ErrorCode error) override {
+    error_callback_.Run(error);
+  }
+
+ private:
+  TransportInfoCallback transport_info_callback_;
+  base::Closure connected_callback_;
+  ErrorCallback error_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestTransportEventHandler);
+};
+
+}  // namespace
+
+class IceTransportTest : public testing::Test {
+ public:
+  IceTransportTest() {
+    jingle_glue::JingleThreadWrapper::EnsureForCurrentMessageLoop();
+    network_settings_ =
+        NetworkSettings(NetworkSettings::NAT_TRAVERSAL_OUTGOING);
+  }
+
+  void TearDown() override {
+    client_socket_.reset();
+    host_socket_.reset();
+    client_transport_.reset();
+    host_transport_.reset();
+    message_loop_.RunUntilIdle();
+  }
+
+  void ProcessTransportInfo(scoped_ptr<IceTransport>* target_transport,
+                            scoped_ptr<buzz::XmlElement> transport_info) {
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+        FROM_HERE, base::Bind(&IceTransportTest::DeliverTransportInfo,
+                              base::Unretained(this), target_transport,
+                              base::Passed(&transport_info)),
+        transport_info_delay_);
+  }
+
+  void DeliverTransportInfo(scoped_ptr<IceTransport>* target_transport,
+                            scoped_ptr<buzz::XmlElement> transport_info) {
+    ASSERT_TRUE(target_transport);
+    EXPECT_TRUE(
+        (*target_transport)->ProcessTransportInfo(transport_info.get()));
+  }
+
+  void InitializeConnection() {
+    port_allocator_ = ChromiumPortAllocator::Create(nullptr, network_settings_);
+
+    host_transport_.reset(new IceTransport(
+        port_allocator_.get(), network_settings_, TransportRole::SERVER));
+    host_transport_->GetCanStartClosure().Run();
+
+    if (!host_authenticator_) {
+      host_authenticator_.reset(new FakeAuthenticator(
+          FakeAuthenticator::HOST, 0, FakeAuthenticator::ACCEPT, true));
+    }
+
+    client_transport_.reset(new IceTransport(
+        port_allocator_.get(), network_settings_, TransportRole::CLIENT));
+    client_transport_->GetCanStartClosure().Run();
+    if (!client_authenticator_) {
+      client_authenticator_.reset(new FakeAuthenticator(
+          FakeAuthenticator::CLIENT, 0, FakeAuthenticator::ACCEPT, true));
+    }
+
+    // Connect signaling between the two IceTransport objects.
+    host_event_handler_.set_transport_info_callback(
+        base::Bind(&IceTransportTest::ProcessTransportInfo,
+                   base::Unretained(this), &client_transport_));
+    client_event_handler_.set_transport_info_callback(
+        base::Bind(&IceTransportTest::ProcessTransportInfo,
+                   base::Unretained(this), &host_transport_));
+
+    host_event_handler_.set_connected_callback(base::Bind(&base::DoNothing));
+    host_event_handler_.set_error_callback(base::Bind(
+        &IceTransportTest::OnTransportError, base::Unretained(this)));
+
+    client_event_handler_.set_connected_callback(base::Bind(&base::DoNothing));
+    client_event_handler_.set_error_callback(base::Bind(
+        &IceTransportTest::OnTransportError, base::Unretained(this)));
+
+    host_transport_->Start(&host_event_handler_, host_authenticator_.get());
+    client_transport_->Start(&client_event_handler_,
+                             client_authenticator_.get());
+  }
+
+  void WaitUntilConnected() {
+    run_loop_.reset(new base::RunLoop());
+
+    int counter = 2;
+    EXPECT_CALL(client_channel_callback_, OnDone(_))
+        .WillOnce(QuitRunLoopOnCounter(run_loop_.get(), &counter));
+    EXPECT_CALL(host_channel_callback_, OnDone(_))
+        .WillOnce(QuitRunLoopOnCounter(run_loop_.get(), &counter));
+
+    run_loop_->Run();
+
+    EXPECT_TRUE(client_socket_.get());
+    EXPECT_TRUE(host_socket_.get());
+  }
+
+  void OnClientChannelCreated(scoped_ptr<P2PStreamSocket> socket) {
+    client_socket_ = socket.Pass();
+    client_channel_callback_.OnDone(client_socket_.get());
+  }
+
+  void OnHostChannelCreated(scoped_ptr<P2PStreamSocket> socket) {
+    host_socket_ = socket.Pass();
+    host_channel_callback_.OnDone(host_socket_.get());
+  }
+
+  void OnTransportError(ErrorCode error) {
+    error_ = error;
+    run_loop_->Quit();
+  }
+
+ protected:
+  base::MessageLoopForIO message_loop_;
+  scoped_ptr<base::RunLoop> run_loop_;
+
+  NetworkSettings network_settings_;
+
+  scoped_ptr<FakeSignalStrategy> signal_strategy_;
+
+  base::TimeDelta transport_info_delay_;
+
+  scoped_ptr<cricket::PortAllocator> port_allocator_;
+
+  // scoped_ptr<IceTransportFactory> host_transport_factory_;
+  scoped_ptr<IceTransport> host_transport_;
+  TestTransportEventHandler host_event_handler_;
+  scoped_ptr<FakeAuthenticator> host_authenticator_;
+
+  // scoped_ptr<IceTransportFactory> client_transport_factory_;
+  scoped_ptr<IceTransport> client_transport_;
+  TestTransportEventHandler client_event_handler_;
+  scoped_ptr<FakeAuthenticator> client_authenticator_;
+
+  MockChannelCreatedCallback client_channel_callback_;
+  MockChannelCreatedCallback host_channel_callback_;
+
+  scoped_ptr<P2PStreamSocket> client_socket_;
+  scoped_ptr<P2PStreamSocket> host_socket_;
+
+  ErrorCode error_ = OK;
+};
+
+TEST_F(IceTransportTest, DataStream) {
+  InitializeConnection();
+
+  client_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnClientChannelCreated,
+                               base::Unretained(this)));
+  host_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnHostChannelCreated,
+                               base::Unretained(this)));
+
+  WaitUntilConnected();
+
+  StreamConnectionTester tester(host_socket_.get(), client_socket_.get(),
+                                kMessageSize, kMessages);
+  tester.Start();
+  message_loop_.Run();
+  tester.CheckResults();
+}
+
+TEST_F(IceTransportTest, MuxDataStream) {
+  InitializeConnection();
+
+  client_transport_->GetMultiplexedChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnClientChannelCreated,
+                               base::Unretained(this)));
+  host_transport_->GetMultiplexedChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnHostChannelCreated,
+                               base::Unretained(this)));
+
+  WaitUntilConnected();
+
+  StreamConnectionTester tester(host_socket_.get(), client_socket_.get(),
+                                kMessageSize, kMessages);
+  tester.Start();
+  message_loop_.Run();
+  tester.CheckResults();
+}
+
+TEST_F(IceTransportTest, FailedChannelAuth) {
+  // Use host authenticator with one that rejects channel authentication.
+  host_authenticator_.reset(new FakeAuthenticator(
+      FakeAuthenticator::HOST, 0, FakeAuthenticator::REJECT_CHANNEL, true));
+
+  InitializeConnection();
+
+  client_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnClientChannelCreated,
+                               base::Unretained(this)));
+  host_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnHostChannelCreated,
+                               base::Unretained(this)));
+
+  run_loop_.reset(new base::RunLoop());
+
+  EXPECT_CALL(host_channel_callback_, OnDone(nullptr))
+      .WillOnce(QuitRunLoop(run_loop_.get()));
+
+  run_loop_->Run();
+
+  EXPECT_FALSE(host_socket_);
+
+  client_transport_->GetStreamChannelFactory()->CancelChannelCreation(
+      kChannelName);
+}
+
+// Verify that channels are never marked connected if connection cannot be
+// established.
+TEST_F(IceTransportTest, TestBrokenTransport) {
+  // Allow only incoming connections on both ends, which effectively renders
+  // transport unusable.
+  network_settings_ = NetworkSettings(NetworkSettings::NAT_TRAVERSAL_DISABLED);
+
+  InitializeConnection();
+
+  client_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnClientChannelCreated,
+                               base::Unretained(this)));
+  host_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnHostChannelCreated,
+                               base::Unretained(this)));
+
+  message_loop_.RunUntilIdle();
+
+  // Verify that neither of the two ends of the channel is connected.
+  EXPECT_FALSE(client_socket_);
+  EXPECT_FALSE(host_socket_);
+
+  client_transport_->GetStreamChannelFactory()->CancelChannelCreation(
+      kChannelName);
+  host_transport_->GetStreamChannelFactory()->CancelChannelCreation(
+      kChannelName);
+}
+
+TEST_F(IceTransportTest, TestCancelChannelCreation) {
+  InitializeConnection();
+
+  client_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnClientChannelCreated,
+                               base::Unretained(this)));
+  client_transport_->GetStreamChannelFactory()->CancelChannelCreation(
+      kChannelName);
+
+  EXPECT_TRUE(!client_socket_.get());
+}
+
+// Verify that we can still connect even when there is a delay in signaling
+// messages delivery.
+TEST_F(IceTransportTest, TestDelayedSignaling) {
+  transport_info_delay_ = base::TimeDelta::FromMilliseconds(100);
+
+  InitializeConnection();
+
+  client_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnClientChannelCreated,
+                               base::Unretained(this)));
+  host_transport_->GetStreamChannelFactory()->CreateChannel(
+      kChannelName, base::Bind(&IceTransportTest::OnHostChannelCreated,
+                               base::Unretained(this)));
+
+  WaitUntilConnected();
+
+  StreamConnectionTester tester(host_socket_.get(), client_socket_.get(),
+                                kMessageSize, kMessages);
+  tester.Start();
+  message_loop_.Run();
+  tester.CheckResults();
+}
+
+
+}  // namespace protocol
+}  // namespace remoting