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| 1 /* | |
| 2 * Copyright 2013 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include <memory> | |
| 12 | |
| 13 #include "webrtc/api/datachannel.h" | |
| 14 #include "webrtc/api/sctputils.h" | |
| 15 #include "webrtc/api/test/fakedatachannelprovider.h" | |
| 16 #include "webrtc/base/gunit.h" | |
| 17 | |
| 18 using webrtc::DataChannel; | |
| 19 using webrtc::SctpSidAllocator; | |
| 20 | |
| 21 static constexpr int kDefaultTimeout = 10000; | |
| 22 | |
| 23 class FakeDataChannelObserver : public webrtc::DataChannelObserver { | |
| 24 public: | |
| 25 FakeDataChannelObserver() | |
| 26 : messages_received_(0), | |
| 27 on_state_change_count_(0), | |
| 28 on_buffered_amount_change_count_(0) {} | |
| 29 | |
| 30 void OnStateChange() { | |
| 31 ++on_state_change_count_; | |
| 32 } | |
| 33 | |
| 34 void OnBufferedAmountChange(uint64_t previous_amount) { | |
| 35 ++on_buffered_amount_change_count_; | |
| 36 } | |
| 37 | |
| 38 void OnMessage(const webrtc::DataBuffer& buffer) { | |
| 39 ++messages_received_; | |
| 40 } | |
| 41 | |
| 42 size_t messages_received() const { | |
| 43 return messages_received_; | |
| 44 } | |
| 45 | |
| 46 void ResetOnStateChangeCount() { | |
| 47 on_state_change_count_ = 0; | |
| 48 } | |
| 49 | |
| 50 void ResetOnBufferedAmountChangeCount() { | |
| 51 on_buffered_amount_change_count_ = 0; | |
| 52 } | |
| 53 | |
| 54 size_t on_state_change_count() const { | |
| 55 return on_state_change_count_; | |
| 56 } | |
| 57 | |
| 58 size_t on_buffered_amount_change_count() const { | |
| 59 return on_buffered_amount_change_count_; | |
| 60 } | |
| 61 | |
| 62 private: | |
| 63 size_t messages_received_; | |
| 64 size_t on_state_change_count_; | |
| 65 size_t on_buffered_amount_change_count_; | |
| 66 }; | |
| 67 | |
| 68 class SctpDataChannelTest : public testing::Test { | |
| 69 protected: | |
| 70 SctpDataChannelTest() | |
| 71 : provider_(new FakeDataChannelProvider()), | |
| 72 webrtc_data_channel_(DataChannel::Create(provider_.get(), | |
| 73 cricket::DCT_SCTP, | |
| 74 "test", | |
| 75 init_)) {} | |
| 76 | |
| 77 void SetChannelReady() { | |
| 78 provider_->set_transport_available(true); | |
| 79 webrtc_data_channel_->OnTransportChannelCreated(); | |
| 80 if (webrtc_data_channel_->id() < 0) { | |
| 81 webrtc_data_channel_->SetSctpSid(0); | |
| 82 } | |
| 83 provider_->set_ready_to_send(true); | |
| 84 } | |
| 85 | |
| 86 void AddObserver() { | |
| 87 observer_.reset(new FakeDataChannelObserver()); | |
| 88 webrtc_data_channel_->RegisterObserver(observer_.get()); | |
| 89 } | |
| 90 | |
| 91 webrtc::InternalDataChannelInit init_; | |
| 92 std::unique_ptr<FakeDataChannelProvider> provider_; | |
| 93 std::unique_ptr<FakeDataChannelObserver> observer_; | |
| 94 rtc::scoped_refptr<DataChannel> webrtc_data_channel_; | |
| 95 }; | |
| 96 | |
| 97 class StateSignalsListener : public sigslot::has_slots<> { | |
| 98 public: | |
| 99 int opened_count() const { return opened_count_; } | |
| 100 int closed_count() const { return closed_count_; } | |
| 101 | |
| 102 void OnSignalOpened(DataChannel* data_channel) { | |
| 103 ++opened_count_; | |
| 104 } | |
| 105 | |
| 106 void OnSignalClosed(DataChannel* data_channel) { | |
| 107 ++closed_count_; | |
| 108 } | |
| 109 | |
| 110 private: | |
| 111 int opened_count_ = 0; | |
| 112 int closed_count_ = 0; | |
| 113 }; | |
| 114 | |
| 115 // Verifies that the data channel is connected to the transport after creation. | |
| 116 TEST_F(SctpDataChannelTest, ConnectedToTransportOnCreated) { | |
| 117 provider_->set_transport_available(true); | |
| 118 rtc::scoped_refptr<DataChannel> dc = | |
| 119 DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init_); | |
| 120 | |
| 121 EXPECT_TRUE(provider_->IsConnected(dc.get())); | |
| 122 // The sid is not set yet, so it should not have added the streams. | |
| 123 EXPECT_FALSE(provider_->IsSendStreamAdded(dc->id())); | |
| 124 EXPECT_FALSE(provider_->IsRecvStreamAdded(dc->id())); | |
| 125 | |
| 126 dc->SetSctpSid(0); | |
| 127 EXPECT_TRUE(provider_->IsSendStreamAdded(dc->id())); | |
| 128 EXPECT_TRUE(provider_->IsRecvStreamAdded(dc->id())); | |
| 129 } | |
| 130 | |
| 131 // Verifies that the data channel is connected to the transport if the transport | |
| 132 // is not available initially and becomes available later. | |
| 133 TEST_F(SctpDataChannelTest, ConnectedAfterTransportBecomesAvailable) { | |
| 134 EXPECT_FALSE(provider_->IsConnected(webrtc_data_channel_.get())); | |
| 135 | |
| 136 provider_->set_transport_available(true); | |
| 137 webrtc_data_channel_->OnTransportChannelCreated(); | |
| 138 EXPECT_TRUE(provider_->IsConnected(webrtc_data_channel_.get())); | |
| 139 } | |
| 140 | |
| 141 // Tests the state of the data channel. | |
| 142 TEST_F(SctpDataChannelTest, StateTransition) { | |
| 143 StateSignalsListener state_signals_listener; | |
| 144 webrtc_data_channel_->SignalOpened.connect( | |
| 145 &state_signals_listener, &StateSignalsListener::OnSignalOpened); | |
| 146 webrtc_data_channel_->SignalClosed.connect( | |
| 147 &state_signals_listener, &StateSignalsListener::OnSignalClosed); | |
| 148 EXPECT_EQ(webrtc::DataChannelInterface::kConnecting, | |
| 149 webrtc_data_channel_->state()); | |
| 150 EXPECT_EQ(state_signals_listener.opened_count(), 0); | |
| 151 EXPECT_EQ(state_signals_listener.closed_count(), 0); | |
| 152 SetChannelReady(); | |
| 153 | |
| 154 EXPECT_EQ(webrtc::DataChannelInterface::kOpen, webrtc_data_channel_->state()); | |
| 155 EXPECT_EQ(state_signals_listener.opened_count(), 1); | |
| 156 EXPECT_EQ(state_signals_listener.closed_count(), 0); | |
| 157 webrtc_data_channel_->Close(); | |
| 158 EXPECT_EQ(webrtc::DataChannelInterface::kClosed, | |
| 159 webrtc_data_channel_->state()); | |
| 160 EXPECT_EQ(state_signals_listener.opened_count(), 1); | |
| 161 EXPECT_EQ(state_signals_listener.closed_count(), 1); | |
| 162 // Verifies that it's disconnected from the transport. | |
| 163 EXPECT_FALSE(provider_->IsConnected(webrtc_data_channel_.get())); | |
| 164 } | |
| 165 | |
| 166 // Tests that DataChannel::buffered_amount() is correct after the channel is | |
| 167 // blocked. | |
| 168 TEST_F(SctpDataChannelTest, BufferedAmountWhenBlocked) { | |
| 169 AddObserver(); | |
| 170 SetChannelReady(); | |
| 171 webrtc::DataBuffer buffer("abcd"); | |
| 172 EXPECT_TRUE(webrtc_data_channel_->Send(buffer)); | |
| 173 | |
| 174 EXPECT_EQ(0U, webrtc_data_channel_->buffered_amount()); | |
| 175 EXPECT_EQ(0U, observer_->on_buffered_amount_change_count()); | |
| 176 | |
| 177 provider_->set_send_blocked(true); | |
| 178 | |
| 179 const int number_of_packets = 3; | |
| 180 for (int i = 0; i < number_of_packets; ++i) { | |
| 181 EXPECT_TRUE(webrtc_data_channel_->Send(buffer)); | |
| 182 } | |
| 183 EXPECT_EQ(buffer.data.size() * number_of_packets, | |
| 184 webrtc_data_channel_->buffered_amount()); | |
| 185 EXPECT_EQ(number_of_packets, observer_->on_buffered_amount_change_count()); | |
| 186 } | |
| 187 | |
| 188 // Tests that the queued data are sent when the channel transitions from blocked | |
| 189 // to unblocked. | |
| 190 TEST_F(SctpDataChannelTest, QueuedDataSentWhenUnblocked) { | |
| 191 AddObserver(); | |
| 192 SetChannelReady(); | |
| 193 webrtc::DataBuffer buffer("abcd"); | |
| 194 provider_->set_send_blocked(true); | |
| 195 EXPECT_TRUE(webrtc_data_channel_->Send(buffer)); | |
| 196 | |
| 197 EXPECT_EQ(1U, observer_->on_buffered_amount_change_count()); | |
| 198 | |
| 199 provider_->set_send_blocked(false); | |
| 200 SetChannelReady(); | |
| 201 EXPECT_EQ(0U, webrtc_data_channel_->buffered_amount()); | |
| 202 EXPECT_EQ(2U, observer_->on_buffered_amount_change_count()); | |
| 203 } | |
| 204 | |
| 205 // Tests that no crash when the channel is blocked right away while trying to | |
| 206 // send queued data. | |
| 207 TEST_F(SctpDataChannelTest, BlockedWhenSendQueuedDataNoCrash) { | |
| 208 AddObserver(); | |
| 209 SetChannelReady(); | |
| 210 webrtc::DataBuffer buffer("abcd"); | |
| 211 provider_->set_send_blocked(true); | |
| 212 EXPECT_TRUE(webrtc_data_channel_->Send(buffer)); | |
| 213 EXPECT_EQ(1U, observer_->on_buffered_amount_change_count()); | |
| 214 | |
| 215 // Set channel ready while it is still blocked. | |
| 216 SetChannelReady(); | |
| 217 EXPECT_EQ(buffer.size(), webrtc_data_channel_->buffered_amount()); | |
| 218 EXPECT_EQ(1U, observer_->on_buffered_amount_change_count()); | |
| 219 | |
| 220 // Unblock the channel to send queued data again, there should be no crash. | |
| 221 provider_->set_send_blocked(false); | |
| 222 SetChannelReady(); | |
| 223 EXPECT_EQ(0U, webrtc_data_channel_->buffered_amount()); | |
| 224 EXPECT_EQ(2U, observer_->on_buffered_amount_change_count()); | |
| 225 } | |
| 226 | |
| 227 // Tests that DataChannel::messages_sent() and DataChannel::bytes_sent() are | |
| 228 // correct, sending data both while unblocked and while blocked. | |
| 229 TEST_F(SctpDataChannelTest, VerifyMessagesAndBytesSent) { | |
| 230 AddObserver(); | |
| 231 SetChannelReady(); | |
| 232 std::vector<webrtc::DataBuffer> buffers({ | |
| 233 webrtc::DataBuffer("message 1"), | |
| 234 webrtc::DataBuffer("msg 2"), | |
| 235 webrtc::DataBuffer("message three"), | |
| 236 webrtc::DataBuffer("quadra message"), | |
| 237 webrtc::DataBuffer("fifthmsg"), | |
| 238 webrtc::DataBuffer("message of the beast"), | |
| 239 }); | |
| 240 | |
| 241 // Default values. | |
| 242 EXPECT_EQ(0U, webrtc_data_channel_->messages_sent()); | |
| 243 EXPECT_EQ(0U, webrtc_data_channel_->bytes_sent()); | |
| 244 | |
| 245 // Send three buffers while not blocked. | |
| 246 provider_->set_send_blocked(false); | |
| 247 EXPECT_TRUE(webrtc_data_channel_->Send(buffers[0])); | |
| 248 EXPECT_TRUE(webrtc_data_channel_->Send(buffers[1])); | |
| 249 EXPECT_TRUE(webrtc_data_channel_->Send(buffers[2])); | |
| 250 size_t bytes_sent = buffers[0].size() + buffers[1].size() + buffers[2].size(); | |
| 251 EXPECT_EQ_WAIT(0U, webrtc_data_channel_->buffered_amount(), kDefaultTimeout); | |
| 252 EXPECT_EQ(3U, webrtc_data_channel_->messages_sent()); | |
| 253 EXPECT_EQ(bytes_sent, webrtc_data_channel_->bytes_sent()); | |
| 254 | |
| 255 // Send three buffers while blocked, queuing the buffers. | |
| 256 provider_->set_send_blocked(true); | |
| 257 EXPECT_TRUE(webrtc_data_channel_->Send(buffers[3])); | |
| 258 EXPECT_TRUE(webrtc_data_channel_->Send(buffers[4])); | |
| 259 EXPECT_TRUE(webrtc_data_channel_->Send(buffers[5])); | |
| 260 size_t bytes_queued = | |
| 261 buffers[3].size() + buffers[4].size() + buffers[5].size(); | |
| 262 EXPECT_EQ(bytes_queued, webrtc_data_channel_->buffered_amount()); | |
| 263 EXPECT_EQ(3U, webrtc_data_channel_->messages_sent()); | |
| 264 EXPECT_EQ(bytes_sent, webrtc_data_channel_->bytes_sent()); | |
| 265 | |
| 266 // Unblock and make sure everything was sent. | |
| 267 provider_->set_send_blocked(false); | |
| 268 EXPECT_EQ_WAIT(0U, webrtc_data_channel_->buffered_amount(), kDefaultTimeout); | |
| 269 bytes_sent += bytes_queued; | |
| 270 EXPECT_EQ(6U, webrtc_data_channel_->messages_sent()); | |
| 271 EXPECT_EQ(bytes_sent, webrtc_data_channel_->bytes_sent()); | |
| 272 } | |
| 273 | |
| 274 // Tests that the queued control message is sent when channel is ready. | |
| 275 TEST_F(SctpDataChannelTest, OpenMessageSent) { | |
| 276 // Initially the id is unassigned. | |
| 277 EXPECT_EQ(-1, webrtc_data_channel_->id()); | |
| 278 | |
| 279 SetChannelReady(); | |
| 280 EXPECT_GE(webrtc_data_channel_->id(), 0); | |
| 281 EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type); | |
| 282 EXPECT_EQ(provider_->last_send_data_params().ssrc, | |
| 283 static_cast<uint32_t>(webrtc_data_channel_->id())); | |
| 284 } | |
| 285 | |
| 286 TEST_F(SctpDataChannelTest, QueuedOpenMessageSent) { | |
| 287 provider_->set_send_blocked(true); | |
| 288 SetChannelReady(); | |
| 289 provider_->set_send_blocked(false); | |
| 290 | |
| 291 EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type); | |
| 292 EXPECT_EQ(provider_->last_send_data_params().ssrc, | |
| 293 static_cast<uint32_t>(webrtc_data_channel_->id())); | |
| 294 } | |
| 295 | |
| 296 // Tests that the DataChannel created after transport gets ready can enter OPEN | |
| 297 // state. | |
| 298 TEST_F(SctpDataChannelTest, LateCreatedChannelTransitionToOpen) { | |
| 299 SetChannelReady(); | |
| 300 webrtc::InternalDataChannelInit init; | |
| 301 init.id = 1; | |
| 302 rtc::scoped_refptr<DataChannel> dc = | |
| 303 DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init); | |
| 304 EXPECT_EQ(webrtc::DataChannelInterface::kConnecting, dc->state()); | |
| 305 EXPECT_TRUE_WAIT(webrtc::DataChannelInterface::kOpen == dc->state(), | |
| 306 1000); | |
| 307 } | |
| 308 | |
| 309 // Tests that an unordered DataChannel sends data as ordered until the OPEN_ACK | |
| 310 // message is received. | |
| 311 TEST_F(SctpDataChannelTest, SendUnorderedAfterReceivesOpenAck) { | |
| 312 SetChannelReady(); | |
| 313 webrtc::InternalDataChannelInit init; | |
| 314 init.id = 1; | |
| 315 init.ordered = false; | |
| 316 rtc::scoped_refptr<DataChannel> dc = | |
| 317 DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init); | |
| 318 | |
| 319 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000); | |
| 320 | |
| 321 // Sends a message and verifies it's ordered. | |
| 322 webrtc::DataBuffer buffer("some data"); | |
| 323 ASSERT_TRUE(dc->Send(buffer)); | |
| 324 EXPECT_TRUE(provider_->last_send_data_params().ordered); | |
| 325 | |
| 326 // Emulates receiving an OPEN_ACK message. | |
| 327 cricket::ReceiveDataParams params; | |
| 328 params.ssrc = init.id; | |
| 329 params.type = cricket::DMT_CONTROL; | |
| 330 rtc::CopyOnWriteBuffer payload; | |
| 331 webrtc::WriteDataChannelOpenAckMessage(&payload); | |
| 332 dc->OnDataReceived(params, payload); | |
| 333 | |
| 334 // Sends another message and verifies it's unordered. | |
| 335 ASSERT_TRUE(dc->Send(buffer)); | |
| 336 EXPECT_FALSE(provider_->last_send_data_params().ordered); | |
| 337 } | |
| 338 | |
| 339 // Tests that an unordered DataChannel sends unordered data after any DATA | |
| 340 // message is received. | |
| 341 TEST_F(SctpDataChannelTest, SendUnorderedAfterReceiveData) { | |
| 342 SetChannelReady(); | |
| 343 webrtc::InternalDataChannelInit init; | |
| 344 init.id = 1; | |
| 345 init.ordered = false; | |
| 346 rtc::scoped_refptr<DataChannel> dc = | |
| 347 DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", init); | |
| 348 | |
| 349 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000); | |
| 350 | |
| 351 // Emulates receiving a DATA message. | |
| 352 cricket::ReceiveDataParams params; | |
| 353 params.ssrc = init.id; | |
| 354 params.type = cricket::DMT_TEXT; | |
| 355 webrtc::DataBuffer buffer("data"); | |
| 356 dc->OnDataReceived(params, buffer.data); | |
| 357 | |
| 358 // Sends a message and verifies it's unordered. | |
| 359 ASSERT_TRUE(dc->Send(buffer)); | |
| 360 EXPECT_FALSE(provider_->last_send_data_params().ordered); | |
| 361 } | |
| 362 | |
| 363 // Tests that the channel can't open until it's successfully sent the OPEN | |
| 364 // message. | |
| 365 TEST_F(SctpDataChannelTest, OpenWaitsForOpenMesssage) { | |
| 366 webrtc::DataBuffer buffer("foo"); | |
| 367 | |
| 368 provider_->set_send_blocked(true); | |
| 369 SetChannelReady(); | |
| 370 EXPECT_EQ(webrtc::DataChannelInterface::kConnecting, | |
| 371 webrtc_data_channel_->state()); | |
| 372 provider_->set_send_blocked(false); | |
| 373 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, | |
| 374 webrtc_data_channel_->state(), 1000); | |
| 375 EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type); | |
| 376 } | |
| 377 | |
| 378 // Tests that close first makes sure all queued data gets sent. | |
| 379 TEST_F(SctpDataChannelTest, QueuedCloseFlushes) { | |
| 380 webrtc::DataBuffer buffer("foo"); | |
| 381 | |
| 382 provider_->set_send_blocked(true); | |
| 383 SetChannelReady(); | |
| 384 EXPECT_EQ(webrtc::DataChannelInterface::kConnecting, | |
| 385 webrtc_data_channel_->state()); | |
| 386 provider_->set_send_blocked(false); | |
| 387 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, | |
| 388 webrtc_data_channel_->state(), 1000); | |
| 389 provider_->set_send_blocked(true); | |
| 390 webrtc_data_channel_->Send(buffer); | |
| 391 webrtc_data_channel_->Close(); | |
| 392 provider_->set_send_blocked(false); | |
| 393 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kClosed, | |
| 394 webrtc_data_channel_->state(), 1000); | |
| 395 EXPECT_EQ(cricket::DMT_TEXT, provider_->last_send_data_params().type); | |
| 396 } | |
| 397 | |
| 398 // Tests that messages are sent with the right ssrc. | |
| 399 TEST_F(SctpDataChannelTest, SendDataSsrc) { | |
| 400 webrtc_data_channel_->SetSctpSid(1); | |
| 401 SetChannelReady(); | |
| 402 webrtc::DataBuffer buffer("data"); | |
| 403 EXPECT_TRUE(webrtc_data_channel_->Send(buffer)); | |
| 404 EXPECT_EQ(1U, provider_->last_send_data_params().ssrc); | |
| 405 } | |
| 406 | |
| 407 // Tests that the incoming messages with wrong ssrcs are rejected. | |
| 408 TEST_F(SctpDataChannelTest, ReceiveDataWithInvalidSsrc) { | |
| 409 webrtc_data_channel_->SetSctpSid(1); | |
| 410 SetChannelReady(); | |
| 411 | |
| 412 AddObserver(); | |
| 413 | |
| 414 cricket::ReceiveDataParams params; | |
| 415 params.ssrc = 0; | |
| 416 webrtc::DataBuffer buffer("abcd"); | |
| 417 webrtc_data_channel_->OnDataReceived(params, buffer.data); | |
| 418 | |
| 419 EXPECT_EQ(0U, observer_->messages_received()); | |
| 420 } | |
| 421 | |
| 422 // Tests that the incoming messages with right ssrcs are acceted. | |
| 423 TEST_F(SctpDataChannelTest, ReceiveDataWithValidSsrc) { | |
| 424 webrtc_data_channel_->SetSctpSid(1); | |
| 425 SetChannelReady(); | |
| 426 | |
| 427 AddObserver(); | |
| 428 | |
| 429 cricket::ReceiveDataParams params; | |
| 430 params.ssrc = 1; | |
| 431 webrtc::DataBuffer buffer("abcd"); | |
| 432 | |
| 433 webrtc_data_channel_->OnDataReceived(params, buffer.data); | |
| 434 EXPECT_EQ(1U, observer_->messages_received()); | |
| 435 } | |
| 436 | |
| 437 // Tests that no CONTROL message is sent if the datachannel is negotiated and | |
| 438 // not created from an OPEN message. | |
| 439 TEST_F(SctpDataChannelTest, NoMsgSentIfNegotiatedAndNotFromOpenMsg) { | |
| 440 webrtc::InternalDataChannelInit config; | |
| 441 config.id = 1; | |
| 442 config.negotiated = true; | |
| 443 config.open_handshake_role = webrtc::InternalDataChannelInit::kNone; | |
| 444 | |
| 445 SetChannelReady(); | |
| 446 rtc::scoped_refptr<DataChannel> dc = | |
| 447 DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", config); | |
| 448 | |
| 449 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000); | |
| 450 EXPECT_EQ(0U, provider_->last_send_data_params().ssrc); | |
| 451 } | |
| 452 | |
| 453 // Tests that DataChannel::messages_received() and DataChannel::bytes_received() | |
| 454 // are correct, receiving data both while not open and while open. | |
| 455 TEST_F(SctpDataChannelTest, VerifyMessagesAndBytesReceived) { | |
| 456 AddObserver(); | |
| 457 std::vector<webrtc::DataBuffer> buffers({ | |
| 458 webrtc::DataBuffer("message 1"), | |
| 459 webrtc::DataBuffer("msg 2"), | |
| 460 webrtc::DataBuffer("message three"), | |
| 461 webrtc::DataBuffer("quadra message"), | |
| 462 webrtc::DataBuffer("fifthmsg"), | |
| 463 webrtc::DataBuffer("message of the beast"), | |
| 464 }); | |
| 465 | |
| 466 webrtc_data_channel_->SetSctpSid(1); | |
| 467 cricket::ReceiveDataParams params; | |
| 468 params.ssrc = 1; | |
| 469 | |
| 470 // Default values. | |
| 471 EXPECT_EQ(0U, webrtc_data_channel_->messages_received()); | |
| 472 EXPECT_EQ(0U, webrtc_data_channel_->bytes_received()); | |
| 473 | |
| 474 // Receive three buffers while data channel isn't open. | |
| 475 webrtc_data_channel_->OnDataReceived(params, buffers[0].data); | |
| 476 webrtc_data_channel_->OnDataReceived(params, buffers[1].data); | |
| 477 webrtc_data_channel_->OnDataReceived(params, buffers[2].data); | |
| 478 EXPECT_EQ(0U, observer_->messages_received()); | |
| 479 EXPECT_EQ(0U, webrtc_data_channel_->messages_received()); | |
| 480 EXPECT_EQ(0U, webrtc_data_channel_->bytes_received()); | |
| 481 | |
| 482 // Open channel and make sure everything was received. | |
| 483 SetChannelReady(); | |
| 484 size_t bytes_received = | |
| 485 buffers[0].size() + buffers[1].size() + buffers[2].size(); | |
| 486 EXPECT_EQ(3U, observer_->messages_received()); | |
| 487 EXPECT_EQ(3U, webrtc_data_channel_->messages_received()); | |
| 488 EXPECT_EQ(bytes_received, webrtc_data_channel_->bytes_received()); | |
| 489 | |
| 490 // Receive three buffers while open. | |
| 491 webrtc_data_channel_->OnDataReceived(params, buffers[3].data); | |
| 492 webrtc_data_channel_->OnDataReceived(params, buffers[4].data); | |
| 493 webrtc_data_channel_->OnDataReceived(params, buffers[5].data); | |
| 494 bytes_received += buffers[3].size() + buffers[4].size() + buffers[5].size(); | |
| 495 EXPECT_EQ(6U, observer_->messages_received()); | |
| 496 EXPECT_EQ(6U, webrtc_data_channel_->messages_received()); | |
| 497 EXPECT_EQ(bytes_received, webrtc_data_channel_->bytes_received()); | |
| 498 } | |
| 499 | |
| 500 // Tests that OPEN_ACK message is sent if the datachannel is created from an | |
| 501 // OPEN message. | |
| 502 TEST_F(SctpDataChannelTest, OpenAckSentIfCreatedFromOpenMessage) { | |
| 503 webrtc::InternalDataChannelInit config; | |
| 504 config.id = 1; | |
| 505 config.negotiated = true; | |
| 506 config.open_handshake_role = webrtc::InternalDataChannelInit::kAcker; | |
| 507 | |
| 508 SetChannelReady(); | |
| 509 rtc::scoped_refptr<DataChannel> dc = | |
| 510 DataChannel::Create(provider_.get(), cricket::DCT_SCTP, "test1", config); | |
| 511 | |
| 512 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kOpen, dc->state(), 1000); | |
| 513 | |
| 514 EXPECT_EQ(static_cast<unsigned int>(config.id), | |
| 515 provider_->last_send_data_params().ssrc); | |
| 516 EXPECT_EQ(cricket::DMT_CONTROL, provider_->last_send_data_params().type); | |
| 517 } | |
| 518 | |
| 519 // Tests the OPEN_ACK role assigned by InternalDataChannelInit. | |
| 520 TEST_F(SctpDataChannelTest, OpenAckRoleInitialization) { | |
| 521 webrtc::InternalDataChannelInit init; | |
| 522 EXPECT_EQ(webrtc::InternalDataChannelInit::kOpener, init.open_handshake_role); | |
| 523 EXPECT_FALSE(init.negotiated); | |
| 524 | |
| 525 webrtc::DataChannelInit base; | |
| 526 base.negotiated = true; | |
| 527 webrtc::InternalDataChannelInit init2(base); | |
| 528 EXPECT_EQ(webrtc::InternalDataChannelInit::kNone, init2.open_handshake_role); | |
| 529 } | |
| 530 | |
| 531 // Tests that the DataChannel is closed if the sending buffer is full. | |
| 532 TEST_F(SctpDataChannelTest, ClosedWhenSendBufferFull) { | |
| 533 SetChannelReady(); | |
| 534 | |
| 535 rtc::CopyOnWriteBuffer buffer(1024); | |
| 536 memset(buffer.data(), 0, buffer.size()); | |
| 537 | |
| 538 webrtc::DataBuffer packet(buffer, true); | |
| 539 provider_->set_send_blocked(true); | |
| 540 | |
| 541 for (size_t i = 0; i < 16 * 1024 + 1; ++i) { | |
| 542 EXPECT_TRUE(webrtc_data_channel_->Send(packet)); | |
| 543 } | |
| 544 | |
| 545 EXPECT_TRUE( | |
| 546 webrtc::DataChannelInterface::kClosed == webrtc_data_channel_->state() || | |
| 547 webrtc::DataChannelInterface::kClosing == webrtc_data_channel_->state()); | |
| 548 } | |
| 549 | |
| 550 // Tests that the DataChannel is closed on transport errors. | |
| 551 TEST_F(SctpDataChannelTest, ClosedOnTransportError) { | |
| 552 SetChannelReady(); | |
| 553 webrtc::DataBuffer buffer("abcd"); | |
| 554 provider_->set_transport_error(); | |
| 555 | |
| 556 EXPECT_TRUE(webrtc_data_channel_->Send(buffer)); | |
| 557 | |
| 558 EXPECT_EQ(webrtc::DataChannelInterface::kClosed, | |
| 559 webrtc_data_channel_->state()); | |
| 560 } | |
| 561 | |
| 562 // Tests that a already closed DataChannel does not fire onStateChange again. | |
| 563 TEST_F(SctpDataChannelTest, ClosedDataChannelDoesNotFireOnStateChange) { | |
| 564 AddObserver(); | |
| 565 webrtc_data_channel_->Close(); | |
| 566 // OnStateChange called for kClosing and kClosed. | |
| 567 EXPECT_EQ(2U, observer_->on_state_change_count()); | |
| 568 | |
| 569 observer_->ResetOnStateChangeCount(); | |
| 570 webrtc_data_channel_->RemotePeerRequestClose(); | |
| 571 EXPECT_EQ(0U, observer_->on_state_change_count()); | |
| 572 } | |
| 573 | |
| 574 // Tests that RemotePeerRequestClose closes the local DataChannel. | |
| 575 TEST_F(SctpDataChannelTest, RemotePeerRequestClose) { | |
| 576 AddObserver(); | |
| 577 webrtc_data_channel_->RemotePeerRequestClose(); | |
| 578 | |
| 579 // OnStateChange called for kClosing and kClosed. | |
| 580 EXPECT_EQ(2U, observer_->on_state_change_count()); | |
| 581 EXPECT_EQ(webrtc::DataChannelInterface::kClosed, | |
| 582 webrtc_data_channel_->state()); | |
| 583 } | |
| 584 | |
| 585 // Tests that the DataChannel is closed if the received buffer is full. | |
| 586 TEST_F(SctpDataChannelTest, ClosedWhenReceivedBufferFull) { | |
| 587 SetChannelReady(); | |
| 588 rtc::CopyOnWriteBuffer buffer(1024); | |
| 589 memset(buffer.data(), 0, buffer.size()); | |
| 590 | |
| 591 cricket::ReceiveDataParams params; | |
| 592 params.ssrc = 0; | |
| 593 | |
| 594 // Receiving data without having an observer will overflow the buffer. | |
| 595 for (size_t i = 0; i < 16 * 1024 + 1; ++i) { | |
| 596 webrtc_data_channel_->OnDataReceived(params, buffer); | |
| 597 } | |
| 598 EXPECT_EQ(webrtc::DataChannelInterface::kClosed, | |
| 599 webrtc_data_channel_->state()); | |
| 600 } | |
| 601 | |
| 602 // Tests that sending empty data returns no error and keeps the channel open. | |
| 603 TEST_F(SctpDataChannelTest, SendEmptyData) { | |
| 604 webrtc_data_channel_->SetSctpSid(1); | |
| 605 SetChannelReady(); | |
| 606 EXPECT_EQ(webrtc::DataChannelInterface::kOpen, | |
| 607 webrtc_data_channel_->state()); | |
| 608 | |
| 609 webrtc::DataBuffer buffer(""); | |
| 610 EXPECT_TRUE(webrtc_data_channel_->Send(buffer)); | |
| 611 EXPECT_EQ(webrtc::DataChannelInterface::kOpen, | |
| 612 webrtc_data_channel_->state()); | |
| 613 } | |
| 614 | |
| 615 // Tests that a channel can be closed without being opened or assigned an sid. | |
| 616 TEST_F(SctpDataChannelTest, NeverOpened) { | |
| 617 provider_->set_transport_available(true); | |
| 618 webrtc_data_channel_->OnTransportChannelCreated(); | |
| 619 webrtc_data_channel_->Close(); | |
| 620 } | |
| 621 | |
| 622 // Test that the data channel goes to the "closed" state (and doesn't crash) | |
| 623 // when its transport goes away, even while data is buffered. | |
| 624 TEST_F(SctpDataChannelTest, TransportDestroyedWhileDataBuffered) { | |
| 625 SetChannelReady(); | |
| 626 | |
| 627 rtc::CopyOnWriteBuffer buffer(1024); | |
| 628 memset(buffer.data(), 0, buffer.size()); | |
| 629 webrtc::DataBuffer packet(buffer, true); | |
| 630 | |
| 631 // Send a packet while sending is blocked so it ends up buffered. | |
| 632 provider_->set_send_blocked(true); | |
| 633 EXPECT_TRUE(webrtc_data_channel_->Send(packet)); | |
| 634 | |
| 635 // Tell the data channel that its tranpsort is being destroyed. | |
| 636 // It should then stop using the transport (allowing us to delete it) and | |
| 637 // transition to the "closed" state. | |
| 638 webrtc_data_channel_->OnTransportChannelDestroyed(); | |
| 639 provider_.reset(nullptr); | |
| 640 EXPECT_EQ_WAIT(webrtc::DataChannelInterface::kClosed, | |
| 641 webrtc_data_channel_->state(), kDefaultTimeout); | |
| 642 } | |
| 643 | |
| 644 class SctpSidAllocatorTest : public testing::Test { | |
| 645 protected: | |
| 646 SctpSidAllocator allocator_; | |
| 647 }; | |
| 648 | |
| 649 // Verifies that an even SCTP id is allocated for SSL_CLIENT and an odd id for | |
| 650 // SSL_SERVER. | |
| 651 TEST_F(SctpSidAllocatorTest, SctpIdAllocationBasedOnRole) { | |
| 652 int id; | |
| 653 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &id)); | |
| 654 EXPECT_EQ(1, id); | |
| 655 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &id)); | |
| 656 EXPECT_EQ(0, id); | |
| 657 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &id)); | |
| 658 EXPECT_EQ(3, id); | |
| 659 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &id)); | |
| 660 EXPECT_EQ(2, id); | |
| 661 } | |
| 662 | |
| 663 // Verifies that SCTP ids of existing DataChannels are not reused. | |
| 664 TEST_F(SctpSidAllocatorTest, SctpIdAllocationNoReuse) { | |
| 665 int old_id = 1; | |
| 666 EXPECT_TRUE(allocator_.ReserveSid(old_id)); | |
| 667 | |
| 668 int new_id; | |
| 669 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &new_id)); | |
| 670 EXPECT_NE(old_id, new_id); | |
| 671 | |
| 672 old_id = 0; | |
| 673 EXPECT_TRUE(allocator_.ReserveSid(old_id)); | |
| 674 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &new_id)); | |
| 675 EXPECT_NE(old_id, new_id); | |
| 676 } | |
| 677 | |
| 678 // Verifies that SCTP ids of removed DataChannels can be reused. | |
| 679 TEST_F(SctpSidAllocatorTest, SctpIdReusedForRemovedDataChannel) { | |
| 680 int odd_id = 1; | |
| 681 int even_id = 0; | |
| 682 EXPECT_TRUE(allocator_.ReserveSid(odd_id)); | |
| 683 EXPECT_TRUE(allocator_.ReserveSid(even_id)); | |
| 684 | |
| 685 int allocated_id = -1; | |
| 686 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id)); | |
| 687 EXPECT_EQ(odd_id + 2, allocated_id); | |
| 688 | |
| 689 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id)); | |
| 690 EXPECT_EQ(even_id + 2, allocated_id); | |
| 691 | |
| 692 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id)); | |
| 693 EXPECT_EQ(odd_id + 4, allocated_id); | |
| 694 | |
| 695 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id)); | |
| 696 EXPECT_EQ(even_id + 4, allocated_id); | |
| 697 | |
| 698 allocator_.ReleaseSid(odd_id); | |
| 699 allocator_.ReleaseSid(even_id); | |
| 700 | |
| 701 // Verifies that removed ids are reused. | |
| 702 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id)); | |
| 703 EXPECT_EQ(odd_id, allocated_id); | |
| 704 | |
| 705 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id)); | |
| 706 EXPECT_EQ(even_id, allocated_id); | |
| 707 | |
| 708 // Verifies that used higher ids are not reused. | |
| 709 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_SERVER, &allocated_id)); | |
| 710 EXPECT_EQ(odd_id + 6, allocated_id); | |
| 711 | |
| 712 EXPECT_TRUE(allocator_.AllocateSid(rtc::SSL_CLIENT, &allocated_id)); | |
| 713 EXPECT_EQ(even_id + 6, allocated_id); | |
| 714 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2514883002:
Create //webrtc/api:libjingle_peerconnection_api + refactorings. (Closed)
