PacketBuffer now correctly cast sequence numbers to uint16_t.

webrtc/modules/video_coding/video_packet_buffer_unittest.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 84 matching lines @@
   EXPECT_TRUE(Insert(seq_num + 2, kKeyFrame, kFirst, kLast));
   EXPECT_TRUE(Insert(seq_num + 3, kKeyFrame, kFirst, kLast));
 }
 
 TEST_F(TestPacketBuffer, InsertDuplicatePacket) {
   const uint16_t seq_num = Rand();
   EXPECT_TRUE(Insert(seq_num, kKeyFrame, kFirst, kLast));
   EXPECT_TRUE(Insert(seq_num, kKeyFrame, kFirst, kLast));
 }
 
-TEST_F(TestPacketBuffer, SeqNumWrap) {
+TEST_F(TestPacketBuffer, SeqNumWrapOneFrame) {
+  EXPECT_TRUE(Insert(0xFFFF, kKeyFrame, kFirst, kNotLast));
+  EXPECT_TRUE(Insert(0x0, kKeyFrame, kNotFirst, kLast));
+
+  CheckFrame(0xFFFF);
+}
+
+TEST_F(TestPacketBuffer, SeqNumWrapTwoFrames) {
   EXPECT_TRUE(Insert(0xFFFF, kKeyFrame, kFirst, kLast));
   EXPECT_TRUE(Insert(0x0, kKeyFrame, kFirst, kLast));
 
   CheckFrame(0xFFFF);
+  CheckFrame(0x0);
 }
 
 TEST_F(TestPacketBuffer, InsertOldPackets) {
   const uint16_t seq_num = Rand();
 
   EXPECT_TRUE(Insert(seq_num, kKeyFrame, kFirst, kNotLast));
   EXPECT_TRUE(Insert(seq_num + 2, kDeltaFrame, kFirst, kLast));
   EXPECT_TRUE(Insert(seq_num + 1, kKeyFrame, kNotFirst, kLast));
   ASSERT_EQ(2UL, frames_from_callback_.size());
 
@@ skipping 335 matching lines @@
   // Expect to free data3 upon insertion (old packet).
   packet_buffer_->ClearTo(1);
   EXPECT_FALSE(Insert(1, kKeyFrame, kFirst, kNotLast, 5, data3));
 
   // Expect to free data4 upon insertion (packet buffer is full).
   EXPECT_FALSE(Insert(2 + kMaxSize, kKeyFrame, kFirst, kNotLast, 5, data4));
 }
 
 }  // namespace video_coding
 }  // namespace webrtc