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/*
* Copyright 2011 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 "webrtc/base/fakesslidentity.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/network.h"
#include "webrtc/base/thread.h"
#include "webrtc/p2p/base/fakesession.h"
#include "webrtc/p2p/base/p2ptransport.h"
using cricket::Candidate;
using cricket::Candidates;
using cricket::Transport;
using cricket::FakeTransport;
using cricket::TransportChannel;
using cricket::FakeTransportChannel;
using cricket::IceRole;
using cricket::TransportDescription;
using rtc::SocketAddress;
static const char kIceUfrag1[] = "TESTICEUFRAG0001";
static const char kIcePwd1[] = "TESTICEPWD00000000000001";
static const char kIceUfrag2[] = "TESTICEUFRAG0002";
static const char kIcePwd2[] = "TESTICEPWD00000000000002";
class TransportTest : public testing::Test,
public sigslot::has_slots<> {
public:
TransportTest()
: thread_(rtc::Thread::Current()),
transport_(new FakeTransport(
thread_, thread_, "test content name", NULL)),
channel_(NULL),
connecting_signalled_(false),
completed_(false),
failed_(false) {
transport_->SignalConnecting.connect(this, &TransportTest::OnConnecting);
transport_->SignalCompleted.connect(this, &TransportTest::OnCompleted);
transport_->SignalFailed.connect(this, &TransportTest::OnFailed);
}
~TransportTest() {
transport_->DestroyAllChannels();
}
bool SetupChannel() {
channel_ = CreateChannel(1);
return (channel_ != NULL);
}
FakeTransportChannel* CreateChannel(int component) {
return static_cast<FakeTransportChannel*>(
transport_->CreateChannel(component));
}
void DestroyChannel() {
transport_->DestroyChannel(1);
channel_ = NULL;
}
protected:
void OnConnecting(Transport* transport) {
connecting_signalled_ = true;
}
void OnCompleted(Transport* transport) {
completed_ = true;
}
void OnFailed(Transport* transport) {
failed_ = true;
}
rtc::Thread* thread_;
rtc::scoped_ptr<FakeTransport> transport_;
FakeTransportChannel* channel_;
bool connecting_signalled_;
bool completed_;
bool failed_;
};
// Test that calling ConnectChannels triggers an OnConnecting signal.
TEST_F(TransportTest, TestConnectChannelsDoesSignal) {
EXPECT_TRUE(SetupChannel());
transport_->ConnectChannels();
EXPECT_FALSE(connecting_signalled_);
EXPECT_TRUE_WAIT(connecting_signalled_, 100);
}
// Test that DestroyAllChannels kills any pending OnConnecting signals.
TEST_F(TransportTest, TestDestroyAllClearsPosts) {
EXPECT_TRUE(transport_->CreateChannel(1) != NULL);
transport_->ConnectChannels();
transport_->DestroyAllChannels();
thread_->ProcessMessages(0);
EXPECT_FALSE(connecting_signalled_);
}
// This test verifies channels are created with proper ICE
// role, tiebreaker and remote ice mode and credentials after offer and
// answer negotiations.
TEST_F(TransportTest, TestChannelIceParameters) {
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
transport_->SetIceTiebreaker(99U);
cricket::TransportDescription local_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(local_desc,
cricket::CA_OFFER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_TRUE(SetupChannel());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
EXPECT_EQ(kIceUfrag1, channel_->ice_ufrag());
EXPECT_EQ(kIcePwd1, channel_->ice_pwd());
cricket::TransportDescription remote_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
EXPECT_EQ(99U, channel_->IceTiebreaker());
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
// Changing the transport role from CONTROLLING to CONTROLLED.
transport_->SetIceRole(cricket::ICEROLE_CONTROLLED);
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, channel_->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
EXPECT_EQ(kIceUfrag1, channel_->remote_ice_ufrag());
EXPECT_EQ(kIcePwd1, channel_->remote_ice_pwd());
}
// Verifies that IceCredentialsChanged returns true when either ufrag or pwd
// changed, and false in other cases.
TEST_F(TransportTest, TestIceCredentialsChanged) {
EXPECT_TRUE(cricket::IceCredentialsChanged("u1", "p1", "u2", "p2"));
EXPECT_TRUE(cricket::IceCredentialsChanged("u1", "p1", "u2", "p1"));
EXPECT_TRUE(cricket::IceCredentialsChanged("u1", "p1", "u1", "p2"));
EXPECT_FALSE(cricket::IceCredentialsChanged("u1", "p1", "u1", "p1"));
}
// This test verifies that the callee's ICE role changes from controlled to
// controlling when the callee triggers an ICE restart.
TEST_F(TransportTest, TestIceControlledToControllingOnIceRestart) {
EXPECT_TRUE(SetupChannel());
transport_->SetIceRole(cricket::ICEROLE_CONTROLLED);
cricket::TransportDescription desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(desc,
cricket::CA_OFFER,
NULL));
ASSERT_TRUE(transport_->SetLocalTransportDescription(desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, transport_->ice_role());
cricket::TransportDescription new_local_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag2, kIcePwd2);
ASSERT_TRUE(transport_->SetLocalTransportDescription(new_local_desc,
cricket::CA_OFFER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
}
// This test verifies that the caller's ICE role changes from controlling to
// controlled when the callee triggers an ICE restart.
TEST_F(TransportTest, TestIceControllingToControlledOnIceRestart) {
EXPECT_TRUE(SetupChannel());
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
cricket::TransportDescription desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(desc,
cricket::CA_OFFER,
NULL));
ASSERT_TRUE(transport_->SetRemoteTransportDescription(desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
cricket::TransportDescription new_local_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag2, kIcePwd2);
ASSERT_TRUE(transport_->SetLocalTransportDescription(new_local_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, transport_->ice_role());
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, channel_->GetIceRole());
}
// This test verifies that the caller's ICE role is still controlling after the
// callee triggers ICE restart if the callee's ICE mode is LITE.
TEST_F(TransportTest, TestIceControllingOnIceRestartIfRemoteIsIceLite) {
EXPECT_TRUE(SetupChannel());
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
cricket::TransportDescription desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(desc,
cricket::CA_OFFER,
NULL));
cricket::TransportDescription remote_desc(
cricket::NS_JINGLE_ICE_UDP, std::vector<std::string>(),
kIceUfrag1, kIcePwd1, cricket::ICEMODE_LITE,
cricket::CONNECTIONROLE_NONE, NULL, cricket::Candidates());
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
cricket::TransportDescription new_local_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag2, kIcePwd2);
ASSERT_TRUE(transport_->SetLocalTransportDescription(new_local_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
}
// This test verifies that the Completed and Failed states can be reached.
TEST_F(TransportTest, TestChannelCompletedAndFailed) {
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
cricket::TransportDescription local_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(local_desc,
cricket::CA_OFFER,
NULL));
EXPECT_TRUE(SetupChannel());
cricket::TransportDescription remote_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_ANSWER,
NULL));
channel_->SetConnectionCount(2);
channel_->SignalCandidatesAllocationDone(channel_);
channel_->SetWritable(true);
EXPECT_TRUE_WAIT(transport_->all_channels_writable(), 100);
// ICE is not yet completed because there is still more than one connection.
EXPECT_FALSE(completed_);
EXPECT_FALSE(failed_);
// When the connection count drops to 1, SignalCompleted should be emitted,
// and completed() should be true.
channel_->SetConnectionCount(1);
EXPECT_TRUE_WAIT(completed_, 100);
completed_ = false;
// When the connection count drops to 0, SignalFailed should be emitted, and
// completed() should be false.
channel_->SetConnectionCount(0);
EXPECT_TRUE_WAIT(failed_, 100);
EXPECT_FALSE(completed_);
}
// Tests channel role is reversed after receiving ice-lite from remote.
TEST_F(TransportTest, TestSetRemoteIceLiteInOffer) {
transport_->SetIceRole(cricket::ICEROLE_CONTROLLED);
cricket::TransportDescription remote_desc(
cricket::NS_JINGLE_ICE_UDP, std::vector<std::string>(),
kIceUfrag1, kIcePwd1, cricket::ICEMODE_LITE,
cricket::CONNECTIONROLE_ACTPASS, NULL, cricket::Candidates());
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_OFFER,
NULL));
cricket::TransportDescription local_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(local_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_TRUE(SetupChannel());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_LITE, channel_->remote_ice_mode());
}
// Tests ice-lite in remote answer.
TEST_F(TransportTest, TestSetRemoteIceLiteInAnswer) {
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
cricket::TransportDescription local_desc(
cricket::NS_JINGLE_ICE_UDP, kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(local_desc,
cricket::CA_OFFER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_TRUE(SetupChannel());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
// Channels will be created in ICEFULL_MODE.
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
cricket::TransportDescription remote_desc(
cricket::NS_JINGLE_ICE_UDP, std::vector<std::string>(),
kIceUfrag1, kIcePwd1, cricket::ICEMODE_LITE,
cricket::CONNECTIONROLE_NONE, NULL, cricket::Candidates());
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
// After receiving remote description with ICEMODE_LITE, channel should
// have mode set to ICEMODE_LITE.
EXPECT_EQ(cricket::ICEMODE_LITE, channel_->remote_ice_mode());
}
TEST_F(TransportTest, TestGetStats) {
EXPECT_TRUE(SetupChannel());
cricket::TransportStats stats;
EXPECT_TRUE(transport_->GetStats(&stats));
// Note that this tests the behavior of a FakeTransportChannel.
ASSERT_EQ(1U, stats.channel_stats.size());
EXPECT_EQ(1, stats.channel_stats[0].component);
transport_->ConnectChannels();
EXPECT_TRUE(transport_->GetStats(&stats));
ASSERT_EQ(1U, stats.channel_stats.size());
EXPECT_EQ(1, stats.channel_stats[0].component);
}
TEST_F(TransportTest, TestReceivingStateChange) {
ASSERT_TRUE(SetupChannel());
channel_->SetConnectionCount(1);
transport_->ConnectChannels();
EXPECT_FALSE(transport_->any_channel_receiving());
channel_->SetReceiving(true);
EXPECT_TRUE_WAIT(transport_->any_channel_receiving(), 100);
FakeTransportChannel* channel2 = CreateChannel(2);
channel2->SetReceiving(true);
EXPECT_TRUE_WAIT(transport_->any_channel_receiving(), 100);
channel2->SetReceiving(false);
EXPECT_TRUE_WAIT(transport_->any_channel_receiving(), 100);
// After both channels become not receiving, the transport receiving state
// becomes TRANSPORT_STATE_NONE.
channel_->SetReceiving(false);
EXPECT_TRUE_WAIT(!transport_->any_channel_receiving(), 100);
}