Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/api/datachannel_unittest.cc

Index: webrtc/api/datachannel_unittest.cc
diff --git a/webrtc/api/datachannel_unittest.cc b/webrtc/api/datachannel_unittest.cc
deleted file mode 100644
index a8c8361cb1e1295d8aaa4905059d365a15dfa2e2..0000000000000000000000000000000000000000
--- a/webrtc/api/datachannel_unittest.cc
+++ /dev/null
@@ -1,714 +0,0 @@
-/*
- *  Copyright 2013 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include <memory>
-
-#include "webrtc/api/datachannel.h"
-#include "webrtc/api/sctputils.h"
-#include "webrtc/api/test/fakedatachannelprovider.h"
-#include "webrtc/base/gunit.h"
-
-using webrtc::DataChannel;
-using webrtc::SctpSidAllocator;
-
-static constexpr int kDefaultTimeout = 10000;
-
-class FakeDataChannelObserver : public webrtc::DataChannelObserver {
- public:
-  FakeDataChannelObserver()
-      : messages_received_(0),
-        on_state_change_count_(0),
-        on_buffered_amount_change_count_(0) {}
-
-  void OnStateChange() {
-    ++on_state_change_count_;
-  }
-
-  void OnBufferedAmountChange(uint64_t previous_amount) {
-    ++on_buffered_amount_change_count_;
-  }
-
-  void OnMessage(const webrtc::DataBuffer& buffer) {
-    ++messages_received_;
-  }
-
-  size_t messages_received() const {
-    return messages_received_;
-  }
-
-  void ResetOnStateChangeCount() {
-    on_state_change_count_ = 0;
-  }
-
-  void ResetOnBufferedAmountChangeCount() {
-    on_buffered_amount_change_count_ = 0;
-  }
-
-  size_t on_state_change_count() const {
-    return on_state_change_count_;
-  }
-
-  size_t on_buffered_amount_change_count() const {
-    return on_buffered_amount_change_count_;
-  }
-
- private:
-  size_t messages_received_;
-  size_t on_state_change_count_;
-  size_t on_buffered_amount_change_count_;
-};
-
-class SctpDataChannelTest : public testing::Test {
- protected:
-  SctpDataChannelTest()
-      : provider_(new FakeDataChannelProvider()),
-        webrtc_data_channel_(DataChannel::Create(provider_.get(),
-                                                 cricket::DCT_SCTP,
-                                                 "test",
-                                                 init_)) {}
-
-  void SetChannelReady() {
-    provider_->set_transport_available(true);
-    webrtc_data_channel_->OnTransportChannelCreated();
-    if (webrtc_data_channel_->id() < 0) {
-      webrtc_data_channel_->SetSctpSid(0);
-    }
-    provider_->set_ready_to_send(true);
-  }
-
-  void AddObserver() {
-    observer_.reset(new FakeDataChannelObserver());
-    webrtc_data_channel_->RegisterObserver(observer_.get());
-  }
-
-  webrtc::InternalDataChannelInit init_;
-  std::unique_ptr<FakeDataChannelProvider> provider_;
-  std::unique_ptr<FakeDataChannelObserver> observer_;
-  rtc::scoped_refptr<DataChannel> webrtc_data_channel_;
-};
-
-class StateSignalsListener : public sigslot::has_slots<> {
- public:
-  int opened_count() const { return opened_count_; }
-  int closed_count() const { return closed_count_; }
-
-  void OnSignalOpened(DataChannel* data_channel) {
-    ++opened_count_;
-  }
-
-  void OnSignalClosed(DataChannel* data_channel) {
-    ++closed_count_;
-  }
-
- private:
-  int opened_count_ = 0;
-  int closed_count_ = 0;
-};
-
-// Verifies that the data channel is connected to the transport after creation.
-TEST_F(SctpDataChannelTest, ConnectedToTransportOnCreated) {
-  provider_->set_transport_available(true);
-  rtc::scoped_refptr<DataChannel> dc =
-      DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init_);
-
-  EXPECT_TRUE(provider_->IsConnected(dc.get()));
-  // The sid is not set yet, so it should not have added the streams.
-  EXPECT_FALSE(provider_->IsSendStreamAdded(dc->id()));
-  EXPECT_FALSE(provider_->IsRecvStreamAdded(dc->id()));
-
-  dc->SetSctpSid(0);
-  EXPECT_TRUE(provider_->IsSendStreamAdded(dc->id()));
-  EXPECT_TRUE(provider_->IsRecvStreamAdded(dc->id()));
-}
-
-// Verifies that the data channel is connected to the transport if the transport
-// is not available initially and becomes available later.
-TEST_F(SctpDataChannelTest, ConnectedAfterTransportBecomesAvailable) {
-  EXPECT_FALSE(provider_->IsConnected(webrtc_data_channel_.get()));
-
-  provider_->set_transport_available(true);
-  webrtc_data_channel_->OnTransportChannelCreated();
-  EXPECT_TRUE(provider_->IsConnected(webrtc_data_channel_.get()));
-}
-
-// Tests the state of the data channel.
-TEST_F(SctpDataChannelTest, StateTransition) {
-  StateSignalsListener state_signals_listener;
-  webrtc_data_channel_->SignalOpened.connect(
-      &state_signals_listener, &StateSignalsListener::OnSignalOpened);
-  webrtc_data_channel_->SignalClosed.connect(
-      &state_signals_listener, &StateSignalsListener::OnSignalClosed);
-  EXPECT_EQ(webrtc::DataChannelInterface::kConnecting,
-            webrtc_data_channel_->state());
-  EXPECT_EQ(state_signals_listener.opened_count(), 0);
-  EXPECT_EQ(state_signals_listener.closed_count(), 0);
-  SetChannelReady();
-
-  EXPECT_EQ(webrtc::DataChannelInterface::kOpen, webrtc_data_channel_->state());
-  EXPECT_EQ(state_signals_listener.opened_count(), 1);
-  EXPECT_EQ(state_signals_listener.closed_count(), 0);
-  webrtc_data_channel_->Close();
-  EXPECT_EQ(webrtc::DataChannelInterface::kClosed,
-            webrtc_data_channel_->state());
-  EXPECT_EQ(state_signals_listener.opened_count(), 1);
-  EXPECT_EQ(state_signals_listener.closed_count(), 1);
-  // Verifies that it's disconnected from the transport.
-  EXPECT_FALSE(provider_->IsConnected(webrtc_data_channel_.get()));
-}
-
-// Tests that DataChannel::buffered_amount() is correct after the channel is
-// blocked.
-TEST_F(SctpDataChannelTest, BufferedAmountWhenBlocked) {
-  AddObserver();
-  SetChannelReady();
-  webrtc::DataBuffer buffer("abcd");
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffer));
-
-  EXPECT_EQ(0U, webrtc_data_channel_->buffered_amount());
-  EXPECT_EQ(0U, observer_->on_buffered_amount_change_count());
-
-  provider_->set_send_blocked(true);
-
-  const int number_of_packets = 3;
-  for (int i = 0; i < number_of_packets; ++i) {
-    EXPECT_TRUE(webrtc_data_channel_->Send(buffer));
-  }
-  EXPECT_EQ(buffer.data.size() * number_of_packets,
-            webrtc_data_channel_->buffered_amount());
-  EXPECT_EQ(number_of_packets, observer_->on_buffered_amount_change_count());
-}
-
-// Tests that the queued data are sent when the channel transitions from blocked
-// to unblocked.
-TEST_F(SctpDataChannelTest, QueuedDataSentWhenUnblocked) {
-  AddObserver();
-  SetChannelReady();
-  webrtc::DataBuffer buffer("abcd");
-  provider_->set_send_blocked(true);
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffer));
-
-  EXPECT_EQ(1U, observer_->on_buffered_amount_change_count());
-
-  provider_->set_send_blocked(false);
-  SetChannelReady();
-  EXPECT_EQ(0U, webrtc_data_channel_->buffered_amount());
-  EXPECT_EQ(2U, observer_->on_buffered_amount_change_count());
-}
-
-// Tests that no crash when the channel is blocked right away while trying to
-// send queued data.
-TEST_F(SctpDataChannelTest, BlockedWhenSendQueuedDataNoCrash) {
-  AddObserver();
-  SetChannelReady();
-  webrtc::DataBuffer buffer("abcd");
-  provider_->set_send_blocked(true);
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffer));
-  EXPECT_EQ(1U, observer_->on_buffered_amount_change_count());
-
-  // Set channel ready while it is still blocked.
-  SetChannelReady();
-  EXPECT_EQ(buffer.size(), webrtc_data_channel_->buffered_amount());
-  EXPECT_EQ(1U, observer_->on_buffered_amount_change_count());
-
-  // Unblock the channel to send queued data again, there should be no crash.
-  provider_->set_send_blocked(false);
-  SetChannelReady();
-  EXPECT_EQ(0U, webrtc_data_channel_->buffered_amount());
-  EXPECT_EQ(2U, observer_->on_buffered_amount_change_count());
-}
-
-// Tests that DataChannel::messages_sent() and DataChannel::bytes_sent() are
-// correct, sending data both while unblocked and while blocked.
-TEST_F(SctpDataChannelTest, VerifyMessagesAndBytesSent) {
-  AddObserver();
-  SetChannelReady();
-  std::vector<webrtc::DataBuffer> buffers({
-    webrtc::DataBuffer("message 1"),
-    webrtc::DataBuffer("msg 2"),
-    webrtc::DataBuffer("message three"),
-    webrtc::DataBuffer("quadra message"),
-    webrtc::DataBuffer("fifthmsg"),
-    webrtc::DataBuffer("message of the beast"),
-  });
-
-  // Default values.
-  EXPECT_EQ(0U, webrtc_data_channel_->messages_sent());
-  EXPECT_EQ(0U, webrtc_data_channel_->bytes_sent());
-
-  // Send three buffers while not blocked.
-  provider_->set_send_blocked(false);
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffers[0]));
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffers[1]));
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffers[2]));
-  size_t bytes_sent = buffers[0].size() + buffers[1].size() + buffers[2].size();
-  EXPECT_EQ_WAIT(0U, webrtc_data_channel_->buffered_amount(), kDefaultTimeout);
-  EXPECT_EQ(3U, webrtc_data_channel_->messages_sent());
-  EXPECT_EQ(bytes_sent, webrtc_data_channel_->bytes_sent());
-
-  // Send three buffers while blocked, queuing the buffers.
-  provider_->set_send_blocked(true);
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffers[3]));
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffers[4]));
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffers[5]));
-  size_t bytes_queued =
-      buffers[3].size() + buffers[4].size() + buffers[5].size();
-  EXPECT_EQ(bytes_queued, webrtc_data_channel_->buffered_amount());
-  EXPECT_EQ(3U, webrtc_data_channel_->messages_sent());
-  EXPECT_EQ(bytes_sent, webrtc_data_channel_->bytes_sent());
-
-  // Unblock and make sure everything was sent.
-  provider_->set_send_blocked(false);
-  EXPECT_EQ_WAIT(0U, webrtc_data_channel_->buffered_amount(), kDefaultTimeout);
-  bytes_sent += bytes_queued;
-  EXPECT_EQ(6U, webrtc_data_channel_->messages_sent());
-  EXPECT_EQ(bytes_sent, webrtc_data_channel_->bytes_sent());
-}
-
-// Tests that the queued control message is sent when channel is ready.
-TEST_F(SctpDataChannelTest, OpenMessageSent) {
-  // Initially the id is unassigned.
-  EXPECT_EQ(-1, webrtc_data_channel_->id());
-
-  SetChannelReady();
-  EXPECT_GE(webrtc_data_channel_->id(), 0);
-  EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type);
-  EXPECT_EQ(provider_->last_send_data_params().ssrc,
-            static_cast<uint32_t>(webrtc_data_channel_->id()));
-}
-
-TEST_F(SctpDataChannelTest, QueuedOpenMessageSent) {
-  provider_->set_send_blocked(true);
-  SetChannelReady();
-  provider_->set_send_blocked(false);
-
-  EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type);
-  EXPECT_EQ(provider_->last_send_data_params().ssrc,
-            static_cast<uint32_t>(webrtc_data_channel_->id()));
-}
-
-// Tests that the DataChannel created after transport gets ready can enter OPEN
-// state.
-TEST_F(SctpDataChannelTest, LateCreatedChannelTransitionToOpen) {
-  SetChannelReady();
-  webrtc::InternalDataChannelInit init;
-  init.id = 1;
-  rtc::scoped_refptr<DataChannel> dc =
-      DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init);
-  EXPECT_EQ(webrtc::DataChannelInterface::kConnecting, dc->state());
-  EXPECT_TRUE_WAIT(webrtc::DataChannelInterface::kOpen == dc->state(),
-                   1000);
-}
-
-// Tests that an unordered DataChannel sends data as ordered until the OPEN_ACK
-// message is received.
-TEST_F(SctpDataChannelTest, SendUnorderedAfterReceivesOpenAck) {
-  SetChannelReady();
-  webrtc::InternalDataChannelInit init;
-  init.id = 1;
-  init.ordered = false;
-  rtc::scoped_refptr<DataChannel> dc =
-      DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init);
-
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000);
-
-  // Sends a message and verifies it's ordered.
-  webrtc::DataBuffer buffer("some data");
-  ASSERT_TRUE(dc->Send(buffer));
-  EXPECT_TRUE(provider_->last_send_data_params().ordered);
-
-  // Emulates receiving an OPEN_ACK message.
-  cricket::ReceiveDataParams params;
-  params.ssrc = init.id;
-  params.type = cricket::DMT_CONTROL;
-  rtc::CopyOnWriteBuffer payload;
-  webrtc::WriteDataChannelOpenAckMessage(&payload);
-  dc->OnDataReceived(NULL, params, payload);
-
-  // Sends another message and verifies it's unordered.
-  ASSERT_TRUE(dc->Send(buffer));
-  EXPECT_FALSE(provider_->last_send_data_params().ordered);
-}
-
-// Tests that an unordered DataChannel sends unordered data after any DATA
-// message is received.
-TEST_F(SctpDataChannelTest, SendUnorderedAfterReceiveData) {
-  SetChannelReady();
-  webrtc::InternalDataChannelInit init;
-  init.id = 1;
-  init.ordered = false;
-  rtc::scoped_refptr<DataChannel> dc =
-      DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init);
-
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000);
-
-  // Emulates receiving a DATA message.
-  cricket::ReceiveDataParams params;
-  params.ssrc = init.id;
-  params.type = cricket::DMT_TEXT;
-  webrtc::DataBuffer buffer("data");
-  dc->OnDataReceived(NULL, params, buffer.data);
-
-  // Sends a message and verifies it's unordered.
-  ASSERT_TRUE(dc->Send(buffer));
-  EXPECT_FALSE(provider_->last_send_data_params().ordered);
-}
-
-// Tests that the channel can't open until it's successfully sent the OPEN
-// message.
-TEST_F(SctpDataChannelTest, OpenWaitsForOpenMesssage) {
-  webrtc::DataBuffer buffer("foo");
-
-  provider_->set_send_blocked(true);
-  SetChannelReady();
-  EXPECT_EQ(webrtc::DataChannelInterface::kConnecting,
-            webrtc_data_channel_->state());
-  provider_->set_send_blocked(false);
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen,
-                 webrtc_data_channel_->state(), 1000);
-  EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type);
-}
-
-// Tests that close first makes sure all queued data gets sent.
-TEST_F(SctpDataChannelTest, QueuedCloseFlushes) {
-  webrtc::DataBuffer buffer("foo");
-
-  provider_->set_send_blocked(true);
-  SetChannelReady();
-  EXPECT_EQ(webrtc::DataChannelInterface::kConnecting,
-            webrtc_data_channel_->state());
-  provider_->set_send_blocked(false);
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen,
-                 webrtc_data_channel_->state(), 1000);
-  provider_->set_send_blocked(true);
-  webrtc_data_channel_->Send(buffer);
-  webrtc_data_channel_->Close();
-  provider_->set_send_blocked(false);
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kClosed,
-                 webrtc_data_channel_->state(), 1000);
-  EXPECT_EQ(cricket::DMT_TEXT, provider_->last_send_data_params().type);
-}
-
-// Tests that messages are sent with the right ssrc.
-TEST_F(SctpDataChannelTest, SendDataSsrc) {
-  webrtc_data_channel_->SetSctpSid(1);
-  SetChannelReady();
-  webrtc::DataBuffer buffer("data");
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffer));
-  EXPECT_EQ(1U, provider_->last_send_data_params().ssrc);
-}
-
-// Tests that the incoming messages with wrong ssrcs are rejected.
-TEST_F(SctpDataChannelTest, ReceiveDataWithInvalidSsrc) {
-  webrtc_data_channel_->SetSctpSid(1);
-  SetChannelReady();
-
-  AddObserver();
-
-  cricket::ReceiveDataParams params;
-  params.ssrc = 0;
-  webrtc::DataBuffer buffer("abcd");
-  webrtc_data_channel_->OnDataReceived(NULL, params, buffer.data);
-
-  EXPECT_EQ(0U, observer_->messages_received());
-}
-
-// Tests that the incoming messages with right ssrcs are acceted.
-TEST_F(SctpDataChannelTest, ReceiveDataWithValidSsrc) {
-  webrtc_data_channel_->SetSctpSid(1);
-  SetChannelReady();
-
-  AddObserver();
-
-  cricket::ReceiveDataParams params;
-  params.ssrc = 1;
-  webrtc::DataBuffer buffer("abcd");
-
-  webrtc_data_channel_->OnDataReceived(NULL, params, buffer.data);
-  EXPECT_EQ(1U, observer_->messages_received());
-}
-
-// Tests that no CONTROL message is sent if the datachannel is negotiated and
-// not created from an OPEN message.
-TEST_F(SctpDataChannelTest, NoMsgSentIfNegotiatedAndNotFromOpenMsg) {
-  webrtc::InternalDataChannelInit config;
-  config.id = 1;
-  config.negotiated = true;
-  config.open_handshake_role = webrtc::InternalDataChannelInit::kNone;
-
-  SetChannelReady();
-  rtc::scoped_refptr<DataChannel> dc =
-      DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", config);
-
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000);
-  EXPECT_EQ(0U, provider_->last_send_data_params().ssrc);
-}
-
-// Tests that DataChannel::messages_received() and DataChannel::bytes_received()
-// are correct, receiving data both while not open and while open.
-TEST_F(SctpDataChannelTest, VerifyMessagesAndBytesReceived) {
-  AddObserver();
-  std::vector<webrtc::DataBuffer> buffers({
-    webrtc::DataBuffer("message 1"),
-    webrtc::DataBuffer("msg 2"),
-    webrtc::DataBuffer("message three"),
-    webrtc::DataBuffer("quadra message"),
-    webrtc::DataBuffer("fifthmsg"),
-    webrtc::DataBuffer("message of the beast"),
-  });
-
-  webrtc_data_channel_->SetSctpSid(1);
-  cricket::ReceiveDataParams params;
-  params.ssrc = 1;
-
-  // Default values.
-  EXPECT_EQ(0U, webrtc_data_channel_->messages_received());
-  EXPECT_EQ(0U, webrtc_data_channel_->bytes_received());
-
-  // Receive three buffers while data channel isn't open.
-  webrtc_data_channel_->OnDataReceived(nullptr, params, buffers[0].data);
-  webrtc_data_channel_->OnDataReceived(nullptr, params, buffers[1].data);
-  webrtc_data_channel_->OnDataReceived(nullptr, params, buffers[2].data);
-  EXPECT_EQ(0U, observer_->messages_received());
-  EXPECT_EQ(0U, webrtc_data_channel_->messages_received());
-  EXPECT_EQ(0U, webrtc_data_channel_->bytes_received());
-
-  // Open channel and make sure everything was received.
-  SetChannelReady();
-  size_t bytes_received =
-      buffers[0].size() + buffers[1].size() + buffers[2].size();
-  EXPECT_EQ(3U, observer_->messages_received());
-  EXPECT_EQ(3U, webrtc_data_channel_->messages_received());
-  EXPECT_EQ(bytes_received, webrtc_data_channel_->bytes_received());
-
-  // Receive three buffers while open.
-  webrtc_data_channel_->OnDataReceived(nullptr, params, buffers[3].data);
-  webrtc_data_channel_->OnDataReceived(nullptr, params, buffers[4].data);
-  webrtc_data_channel_->OnDataReceived(nullptr, params, buffers[5].data);
-  bytes_received += buffers[3].size() + buffers[4].size() + buffers[5].size();
-  EXPECT_EQ(6U, observer_->messages_received());
-  EXPECT_EQ(6U, webrtc_data_channel_->messages_received());
-  EXPECT_EQ(bytes_received, webrtc_data_channel_->bytes_received());
-}
-
-// Tests that OPEN_ACK message is sent if the datachannel is created from an
-// OPEN message.
-TEST_F(SctpDataChannelTest, OpenAckSentIfCreatedFromOpenMessage) {
-  webrtc::InternalDataChannelInit config;
-  config.id = 1;
-  config.negotiated = true;
-  config.open_handshake_role = webrtc::InternalDataChannelInit::kAcker;
-
-  SetChannelReady();
-  rtc::scoped_refptr<DataChannel> dc =
-      DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", config);
-
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000);
-
-  EXPECT_EQ(static_cast<unsigned int>(config.id),
-            provider_->last_send_data_params().ssrc);
-  EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type);
-}
-
-// Tests the OPEN_ACK role assigned by InternalDataChannelInit.
-TEST_F(SctpDataChannelTest, OpenAckRoleInitialization) {
-  webrtc::InternalDataChannelInit init;
-  EXPECT_EQ(webrtc::InternalDataChannelInit::kOpener, init.open_handshake_role);
-  EXPECT_FALSE(init.negotiated);
-
-  webrtc::DataChannelInit base;
-  base.negotiated = true;
-  webrtc::InternalDataChannelInit init2(base);
-  EXPECT_EQ(webrtc::InternalDataChannelInit::kNone, init2.open_handshake_role);
-}
-
-// Tests that the DataChannel is closed if the sending buffer is full.
-TEST_F(SctpDataChannelTest, ClosedWhenSendBufferFull) {
-  SetChannelReady();
-
-  rtc::CopyOnWriteBuffer buffer(1024);
-  memset(buffer.data(), 0, buffer.size());
-
-  webrtc::DataBuffer packet(buffer, true);
-  provider_->set_send_blocked(true);
-
-  for (size_t i = 0; i < 16 * 1024 + 1; ++i) {
-    EXPECT_TRUE(webrtc_data_channel_->Send(packet));
-  }
-
-  EXPECT_TRUE(
-      webrtc::DataChannelInterface::kClosed == webrtc_data_channel_->state() ||
-      webrtc::DataChannelInterface::kClosing == webrtc_data_channel_->state());
-}
-
-// Tests that the DataChannel is closed on transport errors.
-TEST_F(SctpDataChannelTest, ClosedOnTransportError) {
-  SetChannelReady();
-  webrtc::DataBuffer buffer("abcd");
-  provider_->set_transport_error();
-
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffer));
-
-  EXPECT_EQ(webrtc::DataChannelInterface::kClosed,
-            webrtc_data_channel_->state());
-}
-
-// Tests that a already closed DataChannel does not fire onStateChange again.
-TEST_F(SctpDataChannelTest, ClosedDataChannelDoesNotFireOnStateChange) {
-  AddObserver();
-  webrtc_data_channel_->Close();
-  // OnStateChange called for kClosing and kClosed.
-  EXPECT_EQ(2U, observer_->on_state_change_count());
-
-  observer_->ResetOnStateChangeCount();
-  webrtc_data_channel_->RemotePeerRequestClose();
-  EXPECT_EQ(0U, observer_->on_state_change_count());
-}
-
-// Tests that RemotePeerRequestClose closes the local DataChannel.
-TEST_F(SctpDataChannelTest, RemotePeerRequestClose) {
-  AddObserver();
-  webrtc_data_channel_->RemotePeerRequestClose();
-
-  // OnStateChange called for kClosing and kClosed.
-  EXPECT_EQ(2U, observer_->on_state_change_count());
-  EXPECT_EQ(webrtc::DataChannelInterface::kClosed,
-            webrtc_data_channel_->state());
-}
-
-// Tests that the DataChannel is closed if the received buffer is full.
-TEST_F(SctpDataChannelTest, ClosedWhenReceivedBufferFull) {
-  SetChannelReady();
-  rtc::CopyOnWriteBuffer buffer(1024);
-  memset(buffer.data(), 0, buffer.size());
-
-  cricket::ReceiveDataParams params;
-  params.ssrc = 0;
-
-  // Receiving data without having an observer will overflow the buffer.
-  for (size_t i = 0; i < 16 * 1024 + 1; ++i) {
-    webrtc_data_channel_->OnDataReceived(NULL, params, buffer);
-  }
-  EXPECT_EQ(webrtc::DataChannelInterface::kClosed,
-            webrtc_data_channel_->state());
-}
-
-// Tests that sending empty data returns no error and keeps the channel open.
-TEST_F(SctpDataChannelTest, SendEmptyData) {
-  webrtc_data_channel_->SetSctpSid(1);
-  SetChannelReady();
-  EXPECT_EQ(webrtc::DataChannelInterface::kOpen,
-            webrtc_data_channel_->state());
-
-  webrtc::DataBuffer buffer("");
-  EXPECT_TRUE(webrtc_data_channel_->Send(buffer));
-  EXPECT_EQ(webrtc::DataChannelInterface::kOpen,
-            webrtc_data_channel_->state());
-}
-
-// Tests that a channel can be closed without being opened or assigned an sid.
-TEST_F(SctpDataChannelTest, NeverOpened) {
-  provider_->set_transport_available(true);
-  webrtc_data_channel_->OnTransportChannelCreated();
-  webrtc_data_channel_->Close();
-}
-
-// Test that the data channel goes to the "closed" state (and doesn't crash)
-// when its transport goes away, even while data is buffered.
-TEST_F(SctpDataChannelTest, TransportDestroyedWhileDataBuffered) {
-  SetChannelReady();
-
-  rtc::CopyOnWriteBuffer buffer(1024);
-  memset(buffer.data(), 0, buffer.size());
-  webrtc::DataBuffer packet(buffer, true);
-
-  // Send a packet while sending is blocked so it ends up buffered.
-  provider_->set_send_blocked(true);
-  EXPECT_TRUE(webrtc_data_channel_->Send(packet));
-
-  // Tell the data channel that its tranpsort is being destroyed.
-  // It should then stop using the transport (allowing us to delete it) and
-  // transition to the "closed" state.
-  webrtc_data_channel_->OnTransportChannelDestroyed();
-  provider_.reset(nullptr);
-  EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kClosed,
-                 webrtc_data_channel_->state(), kDefaultTimeout);
-}
-
-class SctpSidAllocatorTest : public testing::Test {
- protected:
-  SctpSidAllocator allocator_;
-};
-
-// Verifies that an even SCTP id is allocated for SSL_CLIENT and an odd id for
-// SSL_SERVER.
-TEST_F(SctpSidAllocatorTest, SctpIdAllocationBasedOnRole) {
-  int id;
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &id));
-  EXPECT_EQ(1, id);
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &id));
-  EXPECT_EQ(0, id);
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &id));
-  EXPECT_EQ(3, id);
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &id));
-  EXPECT_EQ(2, id);
-}
-
-// Verifies that SCTP ids of existing DataChannels are not reused.
-TEST_F(SctpSidAllocatorTest, SctpIdAllocationNoReuse) {
-  int old_id = 1;
-  EXPECT_TRUE(allocator_.ReserveSid(old_id));
-
-  int new_id;
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &new_id));
-  EXPECT_NE(old_id, new_id);
-
-  old_id = 0;
-  EXPECT_TRUE(allocator_.ReserveSid(old_id));
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &new_id));
-  EXPECT_NE(old_id, new_id);
-}
-
-// Verifies that SCTP ids of removed DataChannels can be reused.
-TEST_F(SctpSidAllocatorTest, SctpIdReusedForRemovedDataChannel) {
-  int odd_id = 1;
-  int even_id = 0;
-  EXPECT_TRUE(allocator_.ReserveSid(odd_id));
-  EXPECT_TRUE(allocator_.ReserveSid(even_id));
-
-  int allocated_id = -1;
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id));
-  EXPECT_EQ(odd_id + 2, allocated_id);
-
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id));
-  EXPECT_EQ(even_id + 2, allocated_id);
-
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id));
-  EXPECT_EQ(odd_id + 4, allocated_id);
-
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id));
-  EXPECT_EQ(even_id + 4, allocated_id);
-
-  allocator_.ReleaseSid(odd_id);
-  allocator_.ReleaseSid(even_id);
-
-  // Verifies that removed ids are reused.
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id));
-  EXPECT_EQ(odd_id, allocated_id);
-
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id));
-  EXPECT_EQ(even_id, allocated_id);
-
-  // Verifies that used higher ids are not reused.
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id));
-  EXPECT_EQ(odd_id + 6, allocated_id);
-
-  EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id));
-  EXPECT_EQ(even_id + 6, allocated_id);
-}