src/third_party/libjingle/source/talk/session/media/rtcpmuxfilter_unittest.cc

   1 // libjingle
   2 // Copyright 2011 Google Inc.
   3 //
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  13 //     derived from this software without specific prior written permission.
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  25
  26 #include "talk/session/media/rtcpmuxfilter.h"
  27
  28 #include "talk/media/base/testutils.h"
  29 #include "webrtc/base/gunit.h"
  30
  31 TEST(RtcpMuxFilterTest, DemuxRtcpSender) {
  32   cricket::RtcpMuxFilter filter;
  33   const char data[] = { 0, 73, 0, 0 };
  34   const int len = 4;
  35
  36   // Init state - refuse to demux
  37   EXPECT_FALSE(filter.DemuxRtcp(data, len));
  38   // After sent offer, demux should be enabled
  39   filter.SetOffer(true, cricket::CS_LOCAL);
  40   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  41   // Remote accepted, demux should be enabled
  42   filter.SetAnswer(true, cricket::CS_REMOTE);
  43   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  44 }
  45
  46 TEST(RtcpMuxFilterTest, DemuxRtcpReceiver) {
  47   cricket::RtcpMuxFilter filter;
  48   const char data[] = { 0, 73, 0, 0 };
  49   const int len = 4;
  50
  51   // Init state - refuse to demux
  52   EXPECT_FALSE(filter.DemuxRtcp(data, len));
  53   // After received offer, demux should not be enabled
  54   filter.SetOffer(true, cricket::CS_REMOTE);
  55   EXPECT_FALSE(filter.DemuxRtcp(data, len));
  56   // We accept, demux is now enabled
  57   filter.SetAnswer(true, cricket::CS_LOCAL);
  58   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  59 }
  60
  61 TEST(RtcpMuxFilterTest, DemuxRtcpSenderProvisionalAnswer) {
  62   cricket::RtcpMuxFilter filter;
  63   const char data[] = { 0, 73, 0, 0 };
  64   const int len = 4;
  65
  66   filter.SetOffer(true, cricket::CS_REMOTE);
  67   // Received provisional answer without mux enabled.
  68   filter.SetProvisionalAnswer(false, cricket::CS_LOCAL);
  69   EXPECT_FALSE(filter.DemuxRtcp(data, len));
  70   // Received provisional answer with mux enabled.
  71   filter.SetProvisionalAnswer(true, cricket::CS_LOCAL);
  72   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  73   // Remote accepted, demux should be enabled.
  74   filter.SetAnswer(true, cricket::CS_LOCAL);
  75   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  76 }
  77
  78 TEST(RtcpMuxFilterTest, DemuxRtcpReceiverProvisionalAnswer) {
  79   cricket::RtcpMuxFilter filter;
  80   const char data[] = { 0, 73, 0, 0 };
  81   const int len = 4;
  82
  83   filter.SetOffer(true, cricket::CS_LOCAL);
  84   // Received provisional answer without mux enabled.
  85   filter.SetProvisionalAnswer(false, cricket::CS_REMOTE);
  86   // After sent offer, demux should be enabled until we have received a
  87   // final answer.
  88   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  89   // Received provisional answer with mux enabled.
  90   filter.SetProvisionalAnswer(true, cricket::CS_REMOTE);
  91   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  92   // Remote accepted, demux should be enabled.
  93   filter.SetAnswer(true, cricket::CS_REMOTE);
  94   EXPECT_TRUE(filter.DemuxRtcp(data, len));
  95 }
  96
  97 TEST(RtcpMuxFilterTest, IsActiveSender) {
  98   cricket::RtcpMuxFilter filter;
  99   // Init state - not active
 100   EXPECT_FALSE(filter.IsActive());
 101   // After sent offer, demux should not be active.
 102   filter.SetOffer(true, cricket::CS_LOCAL);
 103   EXPECT_FALSE(filter.IsActive());
 104   // Remote accepted, filter is now active.
 105   filter.SetAnswer(true, cricket::CS_REMOTE);
 106   EXPECT_TRUE(filter.IsActive());
 107 }
 108
 109 // Test that we can receive provisional answer and final answer.
 110 TEST(RtcpMuxFilterTest, ReceivePrAnswer) {
 111   cricket::RtcpMuxFilter filter;
 112   filter.SetOffer(true, cricket::CS_LOCAL);
 113   // Received provisional answer with mux enabled.
 114   EXPECT_TRUE(filter.SetProvisionalAnswer(true, cricket::CS_REMOTE));
 115   // We are now active since both sender and receiver support mux.
 116   EXPECT_TRUE(filter.IsActive());
 117   // Received provisional answer with mux disabled.
 118   EXPECT_TRUE(filter.SetProvisionalAnswer(false, cricket::CS_REMOTE));
 119   // We are now inactive since the receiver doesn't support mux.
 120   EXPECT_FALSE(filter.IsActive());
 121   // Received final answer with mux enabled.
 122   EXPECT_TRUE(filter.SetAnswer(true, cricket::CS_REMOTE));
 123   EXPECT_TRUE(filter.IsActive());
 124 }
 125
 126 TEST(RtcpMuxFilterTest, IsActiveReceiver) {
 127   cricket::RtcpMuxFilter filter;
 128   // Init state - not active.
 129   EXPECT_FALSE(filter.IsActive());
 130   // After received offer, demux should not be active
 131   filter.SetOffer(true, cricket::CS_REMOTE);
 132   EXPECT_FALSE(filter.IsActive());
 133   // We accept, filter is now active
 134   filter.SetAnswer(true, cricket::CS_LOCAL);
 135   EXPECT_TRUE(filter.IsActive());
 136 }
 137
 138 // Test that we can send provisional answer and final answer.
 139 TEST(RtcpMuxFilterTest, SendPrAnswer) {
 140   cricket::RtcpMuxFilter filter;
 141   filter.SetOffer(true, cricket::CS_REMOTE);
 142   // Send provisional answer with mux enabled.
 143   EXPECT_TRUE(filter.SetProvisionalAnswer(true, cricket::CS_LOCAL));
 144   EXPECT_TRUE(filter.IsActive());
 145   // Received provisional answer with mux disabled.
 146   EXPECT_TRUE(filter.SetProvisionalAnswer(false, cricket::CS_LOCAL));
 147   EXPECT_FALSE(filter.IsActive());
 148   // Send final answer with mux enabled.
 149   EXPECT_TRUE(filter.SetAnswer(true, cricket::CS_LOCAL));
 150   EXPECT_TRUE(filter.IsActive());
 151 }
 152
 153 // Test that we can enable the filter in an update.
 154 // We can not disable the filter later since that would mean we need to
 155 // recreate a rtcp transport channel.
 156 TEST(RtcpMuxFilterTest, EnableFilterDuringUpdate) {
 157   cricket::RtcpMuxFilter filter;
 158   EXPECT_FALSE(filter.IsActive());
 159   EXPECT_TRUE(filter.SetOffer(false, cricket::CS_REMOTE));
 160   EXPECT_TRUE(filter.SetAnswer(false, cricket::CS_LOCAL));
 161   EXPECT_FALSE(filter.IsActive());
 162
 163   EXPECT_TRUE(filter.SetOffer(true, cricket::CS_REMOTE));
 164   EXPECT_TRUE(filter.SetAnswer(true, cricket::CS_LOCAL));
 165   EXPECT_TRUE(filter.IsActive());
 166
 167   EXPECT_FALSE(filter.SetOffer(false, cricket::CS_REMOTE));
 168   EXPECT_FALSE(filter.SetAnswer(false, cricket::CS_LOCAL));
 169   EXPECT_TRUE(filter.IsActive());
 170 }
 171
 172 // Test that SetOffer can be called twice.
 173 TEST(RtcpMuxFilterTest, SetOfferTwice) {
 174   cricket::RtcpMuxFilter filter;
 175
 176   EXPECT_TRUE(filter.SetOffer(true, cricket::CS_REMOTE));
 177   EXPECT_TRUE(filter.SetOffer(true, cricket::CS_REMOTE));
 178   EXPECT_TRUE(filter.SetAnswer(true, cricket::CS_LOCAL));
 179   EXPECT_TRUE(filter.IsActive());
 180
 181   cricket::RtcpMuxFilter filter2;
 182   EXPECT_TRUE(filter2.SetOffer(false, cricket::CS_LOCAL));
 183   EXPECT_TRUE(filter2.SetOffer(false, cricket::CS_LOCAL));
 184   EXPECT_TRUE(filter2.SetAnswer(false, cricket::CS_REMOTE));
 185   EXPECT_FALSE(filter2.IsActive());
 186 }
 187
 188 // Test that the filter can be enabled twice.
 189 TEST(RtcpMuxFilterTest, EnableFilterTwiceDuringUpdate) {
 190   cricket::RtcpMuxFilter filter;
 191
 192   EXPECT_TRUE(filter.SetOffer(true, cricket::CS_REMOTE));
 193   EXPECT_TRUE(filter.SetAnswer(true, cricket::CS_LOCAL));
 194   EXPECT_TRUE(filter.IsActive());
 195
 196   EXPECT_TRUE(filter.SetOffer(true, cricket::CS_REMOTE));
 197   EXPECT_TRUE(filter.SetAnswer(true, cricket::CS_LOCAL));
 198   EXPECT_TRUE(filter.IsActive());
 199 }
 200
 201 // Test that the filter can be kept disabled during updates.
 202 TEST(RtcpMuxFilterTest, KeepFilterDisabledDuringUpdate) {
 203   cricket::RtcpMuxFilter filter;
 204
 205   EXPECT_TRUE(filter.SetOffer(false, cricket::CS_REMOTE));
 206   EXPECT_TRUE(filter.SetAnswer(false, cricket::CS_LOCAL));
 207   EXPECT_FALSE(filter.IsActive());
 208
 209   EXPECT_TRUE(filter.SetOffer(false, cricket::CS_REMOTE));
 210   EXPECT_TRUE(filter.SetAnswer(false, cricket::CS_LOCAL));
 211   EXPECT_FALSE(filter.IsActive());
 212 }