Add waiting to SetSendSsrc tests.

talk/media/base/videoengine_unittest.h

 /*
  * libjingle
  * Copyright 2014 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 991 matching lines @@
   void SetSendSsrc() {
     EXPECT_TRUE(SetDefaultCodec());
     EXPECT_TRUE(SetSendStreamFormat(kSsrc, DefaultCodec()));
     EXPECT_TRUE(SetSend(true));
     EXPECT_TRUE(SendFrame());
     EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout);
     uint32_t ssrc = 0;
     rtc::scoped_ptr<const rtc::Buffer> p(GetRtpPacket(0));
     ParseRtpPacket(p.get(), NULL, NULL, NULL, NULL, &ssrc, NULL);
     EXPECT_EQ(kSsrc, ssrc);
-    EXPECT_EQ(NumRtpPackets(), NumRtpPackets(ssrc));
-    EXPECT_EQ(NumRtpBytes(), NumRtpBytes(ssrc));
+    // Packets are being paced out, so these can mismatch between the first and
+    // second call to NumRtpPackets until pending packets are paced out.
+    EXPECT_EQ_WAIT(NumRtpPackets(), NumRtpPackets(ssrc), kTimeout);
+    EXPECT_EQ_WAIT(NumRtpBytes(), NumRtpBytes(ssrc), kTimeout);
     EXPECT_EQ(1, NumSentSsrcs());
     EXPECT_EQ(0, NumRtpPackets(kSsrc - 1));
     EXPECT_EQ(0, NumRtpBytes(kSsrc - 1));
   }
   // Test that we can set the SSRC even after codecs are set.
   void SetSendSsrcAfterSetCodecs() {
     // Remove stream added in Setup.
     EXPECT_TRUE(channel_->RemoveSendStream(kSsrc));
     EXPECT_TRUE(SetDefaultCodec());
     EXPECT_TRUE(channel_->AddSendStream(
         cricket::StreamParams::CreateLegacy(999)));
     EXPECT_TRUE(channel_->SetCapturer(999u, video_capturer_.get()));
     EXPECT_TRUE(SetSendStreamFormat(999u, DefaultCodec()));
     EXPECT_TRUE(SetSend(true));
     EXPECT_TRUE(WaitAndSendFrame(0));
     EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout);
     uint32_t ssrc = 0;
     rtc::scoped_ptr<const rtc::Buffer> p(GetRtpPacket(0));
     ParseRtpPacket(p.get(), NULL, NULL, NULL, NULL, &ssrc, NULL);
     EXPECT_EQ(999u, ssrc);
-    EXPECT_EQ(NumRtpPackets(), NumRtpPackets(ssrc));
-    EXPECT_EQ(NumRtpBytes(), NumRtpBytes(ssrc));
+    // Packets are being paced out, so these can mismatch between the first and
+    // second call to NumRtpPackets until pending packets are paced out.
+    EXPECT_EQ_WAIT(NumRtpPackets(), NumRtpPackets(ssrc), kTimeout);
+    EXPECT_EQ_WAIT(NumRtpBytes(), NumRtpBytes(ssrc), kTimeout);
     EXPECT_EQ(1, NumSentSsrcs());
     EXPECT_EQ(0, NumRtpPackets(kSsrc));
     EXPECT_EQ(0, NumRtpBytes(kSsrc));
   }
   // Test that we can set the default video renderer before and after
   // media is received.
   void SetRenderer() {
     uint8_t data1[] = {
         0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 
@@ skipping 760 matching lines @@
   rtc::scoped_ptr<C> channel_;
   cricket::FakeNetworkInterface network_interface_;
   cricket::FakeVideoRenderer renderer_;
   cricket::VideoMediaChannel::Error media_error_;
 
   // Used by test cases where 2 streams are run on the same channel.
   cricket::FakeVideoRenderer renderer2_;
 };
 
 #endif  // TALK_MEDIA_BASE_VIDEOENGINE_UNITTEST_H_  NOLINT