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      1 // Copyright (c) 2012 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 "base/memory/ref_counted.h"
      6 #include "base/memory/scoped_ptr.h"
      7 #include "base/message_loop/message_loop.h"
      8 #include "jingle/glue/channel_socket_adapter.h"
      9 #include "net/base/io_buffer.h"
     10 #include "net/base/net_errors.h"
     11 #include "net/socket/socket.h"
     12 #include "testing/gmock/include/gmock/gmock.h"
     13 #include "testing/gtest/include/gtest/gtest.h"
     14 #include "third_party/libjingle/source/talk/p2p/base/transportchannel.h"
     15 
     16 using net::IOBuffer;
     17 
     18 using testing::_;
     19 using testing::Return;
     20 
     21 namespace jingle_glue {
     22 
     23 namespace {
     24 const int kBufferSize = 4096;
     25 const char kTestData[] = "data";
     26 const int kTestDataSize = 4;
     27 const int kTestError = -32123;
     28 }  // namespace
     29 
     30 class MockTransportChannel : public cricket::TransportChannel {
     31  public:
     32   MockTransportChannel() : cricket::TransportChannel(std::string(), 0) {
     33     set_writable(true);
     34     set_readable(true);
     35   }
     36 
     37   MOCK_METHOD4(SendPacket, int(const char* data,
     38                                size_t len,
     39                                talk_base::DiffServCodePoint dscp,
     40                                int flags));
     41   MOCK_METHOD2(SetOption, int(talk_base::Socket::Option opt, int value));
     42   MOCK_METHOD0(GetError, int());
     43   MOCK_CONST_METHOD0(GetIceRole, cricket::IceRole());
     44   MOCK_METHOD1(GetStats, bool(cricket::ConnectionInfos* infos));
     45   MOCK_CONST_METHOD0(IsDtlsActive, bool());
     46   MOCK_CONST_METHOD1(GetSslRole, bool(talk_base::SSLRole* role));
     47   MOCK_METHOD1(SetSrtpCiphers, bool(const std::vector<std::string>& ciphers));
     48   MOCK_METHOD1(GetSrtpCipher, bool(std::string* cipher));
     49   MOCK_CONST_METHOD1(GetLocalIdentity, bool(talk_base::SSLIdentity** identity));
     50   MOCK_CONST_METHOD1(GetRemoteCertificate,
     51                      bool(talk_base::SSLCertificate** cert));
     52   MOCK_METHOD6(ExportKeyingMaterial, bool(const std::string& label,
     53                                           const uint8* context,
     54                                           size_t context_len,
     55                                           bool use_context,
     56                                           uint8* result,
     57                                           size_t result_len));
     58 };
     59 
     60 class TransportChannelSocketAdapterTest : public testing::Test {
     61  public:
     62   TransportChannelSocketAdapterTest()
     63       : callback_(base::Bind(&TransportChannelSocketAdapterTest::Callback,
     64                              base::Unretained(this))),
     65         callback_result_(0) {
     66   }
     67 
     68  protected:
     69   virtual void SetUp() {
     70     target_.reset(new TransportChannelSocketAdapter(&channel_));
     71   }
     72 
     73   void Callback(int result) {
     74     callback_result_ = result;
     75   }
     76 
     77   MockTransportChannel channel_;
     78   scoped_ptr<TransportChannelSocketAdapter> target_;
     79   net::CompletionCallback callback_;
     80   int callback_result_;
     81   base::MessageLoopForIO message_loop_;
     82 };
     83 
     84 // Verify that Read() returns net::ERR_IO_PENDING.
     85 TEST_F(TransportChannelSocketAdapterTest, Read) {
     86   scoped_refptr<IOBuffer> buffer(new IOBuffer(kBufferSize));
     87 
     88   int result = target_->Read(buffer.get(), kBufferSize, callback_);
     89   ASSERT_EQ(net::ERR_IO_PENDING, result);
     90 
     91   channel_.SignalReadPacket(&channel_, kTestData, kTestDataSize,
     92                             talk_base::CreatePacketTime(0), 0);
     93   EXPECT_EQ(kTestDataSize, callback_result_);
     94 }
     95 
     96 // Verify that Read() after Close() returns error.
     97 TEST_F(TransportChannelSocketAdapterTest, ReadClose) {
     98   scoped_refptr<IOBuffer> buffer(new IOBuffer(kBufferSize));
     99 
    100   int result = target_->Read(buffer.get(), kBufferSize, callback_);
    101   ASSERT_EQ(net::ERR_IO_PENDING, result);
    102 
    103   target_->Close(kTestError);
    104   EXPECT_EQ(kTestError, callback_result_);
    105 
    106   // All Read() calls after Close() should return the error.
    107   EXPECT_EQ(kTestError, target_->Read(buffer.get(), kBufferSize, callback_));
    108 }
    109 
    110 // Verify that Write sends the packet and returns correct result.
    111 TEST_F(TransportChannelSocketAdapterTest, Write) {
    112   scoped_refptr<IOBuffer> buffer(new IOBuffer(kTestDataSize));
    113 
    114   EXPECT_CALL(channel_, SendPacket(buffer->data(), kTestDataSize,
    115                                    talk_base::DSCP_NO_CHANGE, 0))
    116       .WillOnce(Return(kTestDataSize));
    117 
    118   int result = target_->Write(buffer.get(), kTestDataSize, callback_);
    119   EXPECT_EQ(kTestDataSize, result);
    120 }
    121 
    122 // Verify that the message is still sent if Write() is called while
    123 // socket is not open yet. The result is the packet is lost.
    124 TEST_F(TransportChannelSocketAdapterTest, WritePending) {
    125   scoped_refptr<IOBuffer> buffer(new IOBuffer(kTestDataSize));
    126 
    127   EXPECT_CALL(channel_, SendPacket(buffer->data(), kTestDataSize,
    128                                    talk_base::DSCP_NO_CHANGE, 0))
    129       .Times(1)
    130       .WillOnce(Return(SOCKET_ERROR));
    131 
    132   EXPECT_CALL(channel_, GetError())
    133       .WillOnce(Return(EWOULDBLOCK));
    134 
    135   int result = target_->Write(buffer.get(), kTestDataSize, callback_);
    136   ASSERT_EQ(net::OK, result);
    137 }
    138 
    139 }  // namespace jingle_glue
    140