[rtp_rtcp] Added Sender Report Request rtcp packet.

webrtc/modules/rtp_rtcp/source/rtcp_packet/rapid_resync_request_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.
+ */
+
+#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/rapid_resync_request.h"
+
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using testing::ElementsAreArray;
+using testing::make_tuple;
+using webrtc::rtcp::RapidResyncRequest;
+using webrtc::rtcp::RawPacket;
+using webrtc::RTCPUtility::RtcpCommonHeader;
+using webrtc::RTCPUtility::RtcpParseCommonHeader;
+
+namespace webrtc {
+namespace {
+const uint32_t kSenderSsrc = 0x12345678;
+const uint32_t kRemoteSsrc = 0x23456789;
+// Manually created packet matching constants above.
+const uint8_t kPacket[] = {0x85, 205,  0x00, 0x02,
+                           0x12, 0x34, 0x56, 0x78,
+                           0x23, 0x45, 0x67, 0x89};
+const size_t kPacketLength = sizeof(kPacket);
+}  // namespace
+
+TEST(RtcpPacketRapidResyncRequestTest, Parse) {
+  RtcpCommonHeader header;
+  ASSERT_TRUE(RtcpParseCommonHeader(kPacket, kPacketLength, &header));
+  RapidResyncRequest mutable_parsed;
+  EXPECT_TRUE(mutable_parsed.Parse(
+      header, kPacket + RtcpCommonHeader::kHeaderSizeBytes));
+  const RapidResyncRequest& parsed = mutable_parsed;
+
+  EXPECT_EQ(kSenderSsrc, parsed.sender_ssrc());
+  EXPECT_EQ(kRemoteSsrc, parsed.media_ssrc());
+}
+
+TEST(RtcpPacketRapidResyncRequestTest, Create) {
+  RapidResyncRequest rrr;
+  rrr.From(kSenderSsrc);
+  rrr.To(kRemoteSsrc);
+
+  rtc::scoped_ptr<RawPacket> packet = rrr.Build();
+
+  EXPECT_THAT(make_tuple(packet->Buffer(), packet->Length()),
+              ElementsAreArray(kPacket));
+}
+
+TEST(RtcpPacketRapidResyncRequestTest, ParseFailsOnWrongSizePacket) {
+  RapidResyncRequest parsed;
+  RtcpCommonHeader header;
+  ASSERT_TRUE(RtcpParseCommonHeader(kPacket, kPacketLength, &header));
+  const size_t kCorrectPayloadSize = header.payload_size_bytes;
+  const uint8_t* payload = kPacket + RtcpCommonHeader::kHeaderSizeBytes;
+
+  header.payload_size_bytes = kCorrectPayloadSize - 1;
+  EXPECT_FALSE(parsed.Parse(header, payload));
+
+  header.payload_size_bytes = kCorrectPayloadSize + 1;
+  EXPECT_FALSE(parsed.Parse(header, payload));
+}
+}  // namespace webrtc