rtcp::VoipMetric block moved into own file and got Parse function

webrtc/modules/rtp_rtcp/source/rtcp_packet/voip_metric_unittest.cc

+/*
+ *  Copyright (c) 2015 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/voip_metric.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace webrtc {
+namespace rtcp {
+namespace {
+
+const uint32_t kRemoteSsrc = 0x23456789;
+const uint8_t kBlock[] = {0x07, 0x00, 0x00, 0x08, 0x23, 0x45, 0x67, 0x89,
+                          0x01, 0x02, 0x03, 0x04, 0x11, 0x12, 0x22, 0x23,
+                          0x33, 0x34, 0x44, 0x45, 0x05, 0x06, 0x07, 0x08,
+                          0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x00, 0x55, 0x56,
+                          0x66, 0x67, 0x77, 0x78};
+const size_t kBlockSizeBytes = sizeof(kBlock);
+static_assert(
+    kBlockSizeBytes == VoipMetric::kLength,
+    "Size of manually created Voip Metric block should match class constant");
+
+TEST(RtcpPacketVoipMetricTest, Create) {
+  uint8_t buffer[VoipMetric::kLength];
+  RTCPVoIPMetric metric;
+  metric.lossRate = 1;
+  metric.discardRate = 2;
+  metric.burstDensity = 3;
+  metric.gapDensity = 4;
+  metric.burstDuration = 0x1112;
+  metric.gapDuration = 0x2223;
+  metric.roundTripDelay = 0x3334;
+  metric.endSystemDelay = 0x4445;
+  metric.signalLevel = 5;
+  metric.noiseLevel = 6;
+  metric.RERL = 7;
+  metric.Gmin = 8;
+  metric.Rfactor = 9;
+  metric.extRfactor = 10;
+  metric.MOSLQ = 11;
+  metric.MOSCQ = 12;
+  metric.RXconfig = 13;
+  metric.JBnominal = 0x5556;
+  metric.JBmax = 0x6667;
+  metric.JBabsMax = 0x7778;
+  VoipMetric metric_block;
+  metric_block.To(kRemoteSsrc);
+  metric_block.WithVoipMetric(metric);
+
+  metric_block.Create(buffer);
+  EXPECT_EQ(0, memcmp(buffer, kBlock, kBlockSizeBytes));
+}
+
+TEST(RtcpPacketVoipMetricTest, Parse) {
+  VoipMetric read_metric;
+  read_metric.Parse(kBlock);
+
+  // Run checks on const object to ensure all accessors have const modifier.
+  const VoipMetric& parsed = read_metric;
+
+  EXPECT_EQ(kRemoteSsrc, parsed.ssrc());
+  EXPECT_EQ(1, parsed.voip_metric().lossRate);
+  EXPECT_EQ(2, parsed.voip_metric().discardRate);
+  EXPECT_EQ(3, parsed.voip_metric().burstDensity);
+  EXPECT_EQ(4, parsed.voip_metric().gapDensity);
+  EXPECT_EQ(0x1112, parsed.voip_metric().burstDuration);
+  EXPECT_EQ(0x2223, parsed.voip_metric().gapDuration);
+  EXPECT_EQ(0x3334, parsed.voip_metric().roundTripDelay);
+  EXPECT_EQ(0x4445, parsed.voip_metric().endSystemDelay);
+  EXPECT_EQ(5, parsed.voip_metric().signalLevel);
+  EXPECT_EQ(6, parsed.voip_metric().noiseLevel);
+  EXPECT_EQ(7, parsed.voip_metric().RERL);
+  EXPECT_EQ(8, parsed.voip_metric().Gmin);
+  EXPECT_EQ(9, parsed.voip_metric().Rfactor);
+  EXPECT_EQ(10, parsed.voip_metric().extRfactor);
+  EXPECT_EQ(11, parsed.voip_metric().MOSLQ);
+  EXPECT_EQ(12, parsed.voip_metric().MOSCQ);
+  EXPECT_EQ(13, parsed.voip_metric().RXconfig);
+  EXPECT_EQ(0x5556, parsed.voip_metric().JBnominal);
+  EXPECT_EQ(0x6667, parsed.voip_metric().JBmax);
+  EXPECT_EQ(0x7778, parsed.voip_metric().JBabsMax);
+}
+
+}  // namespace
+}  // namespace rtcp
+}  // namespace webrtc