New peerconnection test case, for video stream forwarding.

webrtc/api/peerconnection_unittest.cc

Index: webrtc/api/peerconnection_unittest.cc
diff --git a/webrtc/api/peerconnection_unittest.cc b/webrtc/api/peerconnection_unittest.cc
index 67b4efbc73f8db9670f4f8c8e59343c91329272f..ffaa524b562dad3d34452d464b9e1b54bc39193b 100644
--- a/webrtc/api/peerconnection_unittest.cc
+++ b/webrtc/api/peerconnection_unittest.cc
@@ -1970,6 +1970,42 @@ TEST_F(P2PTestConductor, EarlyWarmupTest) {
                    kMaxWaitForFramesMs);
 }
 
+TEST_F(P2PTestConductor, StreamForwardVideoOnly) {
+  ASSERT_TRUE(CreateTestClients());
+  // One-way stream
+  receiving_client()->set_auto_add_stream(false);
+  // Video only, audio forwarding not expected to work.
+  initializing_client()->AddMediaStream(false, true);
+  initializing_client()->Negotiate();
+
+  ASSERT_TRUE_WAIT(SessionActive(), kMaxWaitForActivationMs);
+  VerifySessionDescriptions();
+
+  ASSERT_TRUE (initializing_client()->can_receive_video());
+  ASSERT_TRUE (receiving_client()->can_receive_video());
+
+  EXPECT_EQ_WAIT(webrtc::PeerConnectionInterface::kIceConnectionCompleted,
+                 initializing_client()->ice_connection_state(),
+                 kMaxWaitForFramesMs);
+  EXPECT_EQ_WAIT(webrtc::PeerConnectionInterface::kIceConnectionConnected,
+                 receiving_client()->ice_connection_state(),
+                 kMaxWaitForFramesMs);
+
+  ASSERT_TRUE(receiving_client()->remote_streams()->count() > 0);
+  EXPECT_TRUE(receiving_client()->remote_streams()->count() == 1);
+
+  LOG(INFO) << "XXXXX Echoing stream XXXXX";

[perkj_webrtc, 2016/04/08 14:34:07]

remove this log

[nisse-webrtc, 2016/04/11 06:35:39]

Deleted locally, should be gone in next upload.

+
+  // Echo the stream back.
+  receiving_client()->pc()->AddStream(
+      receiving_client()->remote_streams()->at(0));
+  receiving_client()->Negotiate();
+
+  EXPECT_TRUE_WAIT(
+      initializing_client()->VideoFramesReceivedCheck(kEndVideoFrameCount),
+      kMaxWaitForFramesMs);
+}
+
 class IceServerParsingTest : public testing::Test {
  public:
   // Convenience for parsing a single URL.