1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "remoting/protocol/chromium_socket_factory.h" 6 7#include "base/message_loop/message_loop.h" 8#include "base/run_loop.h" 9#include "testing/gmock/include/gmock/gmock.h" 10#include "testing/gtest/include/gtest/gtest.h" 11#include "third_party/webrtc/base/asyncpacketsocket.h" 12#include "third_party/webrtc/base/socketaddress.h" 13 14namespace remoting { 15namespace protocol { 16 17class ChromiumSocketFactoryTest : public testing::Test, 18 public sigslot::has_slots<> { 19 public: 20 virtual void SetUp() OVERRIDE { 21 socket_factory_.reset(new ChromiumPacketSocketFactory()); 22 23 socket_.reset(socket_factory_->CreateUdpSocket( 24 rtc::SocketAddress("127.0.0.1", 0), 0, 0)); 25 ASSERT_TRUE(socket_.get() != NULL); 26 EXPECT_EQ(socket_->GetState(), rtc::AsyncPacketSocket::STATE_BOUND); 27 socket_->SignalReadPacket.connect( 28 this, &ChromiumSocketFactoryTest::OnPacket); 29 } 30 31 void OnPacket(rtc::AsyncPacketSocket* socket, 32 const char* data, size_t size, 33 const rtc::SocketAddress& address, 34 const rtc::PacketTime& packet_time) { 35 EXPECT_EQ(socket, socket_.get()); 36 last_packet_.assign(data, data + size); 37 last_address_ = address; 38 run_loop_.Quit(); 39 } 40 41 void VerifyCanSendAndReceive(rtc::AsyncPacketSocket* sender) { 42 // UDP packets may be lost, so we have to retry sending it more than once. 43 const int kMaxAttempts = 3; 44 const base::TimeDelta kAttemptPeriod = base::TimeDelta::FromSeconds(1); 45 std::string test_packet("TEST PACKET"); 46 int attempts = 0; 47 rtc::PacketOptions options; 48 while (last_packet_.empty() && attempts++ < kMaxAttempts) { 49 sender->SendTo(test_packet.data(), test_packet.size(), 50 socket_->GetLocalAddress(), options); 51 message_loop_.PostDelayedTask(FROM_HERE, run_loop_.QuitClosure(), 52 kAttemptPeriod); 53 run_loop_.Run(); 54 } 55 EXPECT_EQ(test_packet, last_packet_); 56 EXPECT_EQ(sender->GetLocalAddress(), last_address_); 57 } 58 59 protected: 60 base::MessageLoopForIO message_loop_; 61 base::RunLoop run_loop_; 62 63 scoped_ptr<rtc::PacketSocketFactory> socket_factory_; 64 scoped_ptr<rtc::AsyncPacketSocket> socket_; 65 66 std::string last_packet_; 67 rtc::SocketAddress last_address_; 68}; 69 70TEST_F(ChromiumSocketFactoryTest, SendAndReceive) { 71 scoped_ptr<rtc::AsyncPacketSocket> sending_socket( 72 socket_factory_->CreateUdpSocket( 73 rtc::SocketAddress("127.0.0.1", 0), 0, 0)); 74 ASSERT_TRUE(sending_socket.get() != NULL); 75 EXPECT_EQ(sending_socket->GetState(), 76 rtc::AsyncPacketSocket::STATE_BOUND); 77 78 VerifyCanSendAndReceive(sending_socket.get()); 79} 80 81TEST_F(ChromiumSocketFactoryTest, SetOptions) { 82 EXPECT_EQ(0, socket_->SetOption(rtc::Socket::OPT_SNDBUF, 4096)); 83 EXPECT_EQ(0, socket_->SetOption(rtc::Socket::OPT_RCVBUF, 4096)); 84} 85 86TEST_F(ChromiumSocketFactoryTest, PortRange) { 87 const int kMinPort = 12400; 88 const int kMaxPort = 12410; 89 socket_.reset(socket_factory_->CreateUdpSocket( 90 rtc::SocketAddress("127.0.0.1", 0), kMaxPort, kMaxPort)); 91 ASSERT_TRUE(socket_.get() != NULL); 92 EXPECT_EQ(socket_->GetState(), rtc::AsyncPacketSocket::STATE_BOUND); 93 EXPECT_GE(socket_->GetLocalAddress().port(), kMinPort); 94 EXPECT_LE(socket_->GetLocalAddress().port(), kMaxPort); 95} 96 97TEST_F(ChromiumSocketFactoryTest, TransientError) { 98 scoped_ptr<rtc::AsyncPacketSocket> sending_socket( 99 socket_factory_->CreateUdpSocket( 100 rtc::SocketAddress("127.0.0.1", 0), 0, 0)); 101 std::string test_packet("TEST"); 102 103 // Try sending a packet to an IPv6 address from a socket that's bound to an 104 // IPv4 address. This send is expected to fail, but the socket should still be 105 // functional. 106 sending_socket->SendTo(test_packet.data(), test_packet.size(), 107 rtc::SocketAddress("::1", 0), 108 rtc::PacketOptions()); 109 110 // Verify that socket is still usable. 111 VerifyCanSendAndReceive(sending_socket.get()); 112} 113 114} // namespace protocol 115} // namespace remoting 116