Cast:Updating logging stats

media/cast/logging/logging_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <gtest/gtest.h>
 
 #include "base/rand_util.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "base/time/time.h"
@@ skipping 24 matching lines @@
     task_runner_ = new test::FakeTaskRunner(&testing_clock_);
     logging_.reset(new LoggingImpl(task_runner_, config_));
   }
 
   virtual ~TestLogging() {}
 
   CastLoggingConfig config_;
   scoped_refptr<test::FakeTaskRunner> task_runner_;
   scoped_ptr<LoggingImpl> logging_;
   base::SimpleTestTickClock testing_clock_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestLogging);
 };
 
 TEST_F(TestLogging, BasicFrameLogging) {
   base::TimeTicks start_time = testing_clock_.NowTicks();
   base::TimeDelta time_interval = testing_clock_.NowTicks() - start_time;
   uint32 rtp_timestamp = 0;
   uint32 frame_id = 0;
+  base::TimeTicks now;
   do {
-    logging_->InsertFrameEvent(testing_clock_.NowTicks(),
-                               kAudioFrameCaptured, rtp_timestamp, frame_id);
+    now = testing_clock_.NowTicks();
+    logging_->InsertFrameEvent(now, kAudioFrameCaptured, rtp_timestamp,
+                               frame_id);
     testing_clock_.Advance(
         base::TimeDelta::FromMilliseconds(kFrameIntervalMs));
     rtp_timestamp += kFrameIntervalMs * 90;
     ++frame_id;
-    time_interval = testing_clock_.NowTicks() - start_time;
+    time_interval = now - start_time;
   }  while (time_interval.InSeconds() < kIntervalTime1S);
+  base::TimeTicks end_time = now;
   // Get logging data.
   FrameRawMap frame_map = logging_->GetFrameRawData();
   // Size of map should be equal to the number of frames logged.
   EXPECT_EQ(frame_id, frame_map.size());
   // Verify stats.
-  const FrameStatsMap* frame_stats =
-      logging_->GetFrameStatsData(testing_clock_.NowTicks());
+  FrameStatsMap frame_stats = logging_->GetFrameStatsData();
   // Size of stats equals the number of events.
-  EXPECT_EQ(1u, frame_stats->size());
-  FrameStatsMap::const_iterator it = frame_stats->find(kAudioFrameCaptured);
-  EXPECT_TRUE(it != frame_stats->end());
-  EXPECT_NEAR(30.3, it->second->framerate_fps, 0.1);
-  EXPECT_EQ(0, it->second->bitrate_kbps);
-  EXPECT_EQ(0, it->second->max_delay_ms);
-  EXPECT_EQ(0, it->second->min_delay_ms);
-  EXPECT_EQ(0, it->second->avg_delay_ms);
+  EXPECT_EQ(1u, frame_stats.size());
+  FrameStatsMap::const_iterator it = frame_stats.find(kAudioFrameCaptured);
+  EXPECT_TRUE(it != frame_stats.end());
+  EXPECT_EQ(0, it->second.max_delay.InMilliseconds());
+  EXPECT_EQ(0, it->second.min_delay.InMilliseconds());
+  EXPECT_EQ(start_time, it->second.first_event_time);
+  EXPECT_EQ(end_time, it->second.last_event_time);
+  EXPECT_EQ(0u, it->second.sum_size);
+  // Number of events is equal to the number of frames.
+  EXPECT_EQ(static_cast<int>(frame_id), it->second.event_counter);
 }
 
 TEST_F(TestLogging, FrameLoggingWithSize) {
   // Average packet size.
   const int kBaseFrameSizeBytes = 25000;
   const int kRandomSizeInterval = 100;
   base::TimeTicks start_time = testing_clock_.NowTicks();
   base::TimeDelta time_interval = testing_clock_.NowTicks() - start_time;
   uint32 rtp_timestamp = 0;
   uint32 frame_id = 0;
+  size_t sum_size = 0;
   do {
     int size = kBaseFrameSizeBytes +
         base::RandInt(-kRandomSizeInterval, kRandomSizeInterval);
+    sum_size += static_cast<size_t>(size);
     logging_->InsertFrameEventWithSize(testing_clock_.NowTicks(),
         kAudioFrameCaptured, rtp_timestamp, frame_id, size);
     testing_clock_.Advance(
         base::TimeDelta::FromMilliseconds(kFrameIntervalMs));
     rtp_timestamp += kFrameIntervalMs * 90;
     ++frame_id;
     time_interval = testing_clock_.NowTicks() - start_time;
   }  while (time_interval.InSeconds() < kIntervalTime1S);
   // Get logging data.
   FrameRawMap frame_map =  logging_->GetFrameRawData();
   // Size of map should be equal to the number of frames logged.
   EXPECT_EQ(frame_id, frame_map.size());
   // Verify stats.
-  const FrameStatsMap* frame_stats =
-      logging_->GetFrameStatsData(testing_clock_.NowTicks());
+  FrameStatsMap frame_stats = logging_->GetFrameStatsData();
   // Size of stats equals the number of events.
-  EXPECT_EQ(1u, frame_stats->size());
-  FrameStatsMap::const_iterator it = frame_stats->find(kAudioFrameCaptured);
-  EXPECT_TRUE(it != frame_stats->end());
-  EXPECT_NEAR(30.3, it->second->framerate_fps, 0.1);
-  EXPECT_NEAR(8 * kBaseFrameSizeBytes / (kFrameIntervalMs * 1000),
-      it->second->bitrate_kbps, kRandomSizeInterval);
-  EXPECT_EQ(0, it->second->max_delay_ms);
-  EXPECT_EQ(0, it->second->min_delay_ms);
-  EXPECT_EQ(0, it->second->avg_delay_ms);
+  EXPECT_EQ(1u, frame_stats.size());
+  FrameStatsMap::const_iterator it = frame_stats.find(kAudioFrameCaptured);
+  EXPECT_TRUE(it != frame_stats.end());
+  EXPECT_EQ(0, it->second.max_delay.InMilliseconds());
+  EXPECT_EQ(0, it->second.min_delay.InMilliseconds());
+  EXPECT_EQ(0, it->second.sum_delay.InMilliseconds());
+  EXPECT_EQ(sum_size, it->second.sum_size);
 }
 
 TEST_F(TestLogging, FrameLoggingWithDelay) {
   // Average packet size.
   const int kPlayoutDelayMs = 50;
   const int kRandomSizeInterval = 20;
   base::TimeTicks start_time = testing_clock_.NowTicks();
   base::TimeDelta time_interval = testing_clock_.NowTicks() - start_time;
   uint32 rtp_timestamp = 0;
   uint32 frame_id = 0;
   do {
     int delay = kPlayoutDelayMs +
         base::RandInt(-kRandomSizeInterval, kRandomSizeInterval);
     logging_->InsertFrameEventWithDelay(testing_clock_.NowTicks(),
         kAudioFrameCaptured, rtp_timestamp, frame_id,
         base::TimeDelta::FromMilliseconds(delay));
     testing_clock_.Advance(
         base::TimeDelta::FromMilliseconds(kFrameIntervalMs));
     rtp_timestamp += kFrameIntervalMs * 90;
     ++frame_id;
     time_interval = testing_clock_.NowTicks() - start_time;
   }  while (time_interval.InSeconds() < kIntervalTime1S);
   // Get logging data.
   FrameRawMap frame_map =  logging_->GetFrameRawData();
   // Size of map should be equal to the number of frames logged.
   EXPECT_EQ(frame_id, frame_map.size());
   // Verify stats.
-  const FrameStatsMap* frame_stats =
-      logging_->GetFrameStatsData(testing_clock_.NowTicks());
+  FrameStatsMap frame_stats = logging_->GetFrameStatsData();
   // Size of stats equals the number of events.
-  EXPECT_EQ(1u, frame_stats->size());
-  FrameStatsMap::const_iterator it = frame_stats->find(kAudioFrameCaptured);
-  EXPECT_TRUE(it != frame_stats->end());
-  EXPECT_NEAR(30.3, it->second->framerate_fps, 0.1);
-  EXPECT_EQ(0, it->second->bitrate_kbps);
-  EXPECT_GE(kPlayoutDelayMs + kRandomSizeInterval, it->second->max_delay_ms);
-  EXPECT_LE(kPlayoutDelayMs - kRandomSizeInterval, it->second->min_delay_ms);
-  EXPECT_NEAR(kPlayoutDelayMs, it->second->avg_delay_ms,
-      0.2 * kRandomSizeInterval);
+  EXPECT_EQ(1u, frame_stats.size());
+  FrameStatsMap::const_iterator it = frame_stats.find(kAudioFrameCaptured);
+  EXPECT_TRUE(it != frame_stats.end());
+  EXPECT_GE(kPlayoutDelayMs + kRandomSizeInterval,
+      it->second.max_delay.InMilliseconds());
+  EXPECT_LE(kPlayoutDelayMs - kRandomSizeInterval,
+      it->second.min_delay.InMilliseconds());
 }
 
 TEST_F(TestLogging, MultipleEventFrameLogging) {
   base::TimeTicks start_time = testing_clock_.NowTicks();
   base::TimeDelta time_interval = testing_clock_.NowTicks() - start_time;
   uint32 rtp_timestamp = 0;
   uint32 frame_id = 0;
   do {
     logging_->InsertFrameEvent(testing_clock_.NowTicks(), kAudioFrameCaptured,
                                rtp_timestamp, frame_id);
@@ skipping 39 matching lines @@
         base::TimeDelta::FromMilliseconds(kFrameIntervalMs));
     rtp_timestamp += kFrameIntervalMs * 90;
     ++frame_id;
     time_interval = testing_clock_.NowTicks() - start_time;
   }  while (time_interval.InSeconds() < kIntervalTime1S);
   // Get logging data.
   PacketRawMap raw_map = logging_->GetPacketRawData();
   // Size of map should be equal to the number of frames logged.
   EXPECT_EQ(frame_id, raw_map.size());
   // Verify stats.
-  const PacketStatsMap* stats_map =
-      logging_->GetPacketStatsData(testing_clock_.NowTicks());
+  PacketStatsMap stats_map = logging_->GetPacketStatsData();
   // Size of stats equals the number of events.
-  EXPECT_EQ(1u, stats_map->size());
-  PacketStatsMap::const_iterator it = stats_map->find(kPacketSentToPacer);
-  EXPECT_TRUE(it != stats_map->end());
-  // We only store the bitrate as a packet statistic.
-  EXPECT_NEAR(8 * kNumPacketsPerFrame * kBaseSize / (kFrameIntervalMs * 1000),
-      it->second, kSizeInterval);
+  EXPECT_EQ(1u, stats_map.size());
+  PacketStatsMap::const_iterator it = stats_map.find(kPacketSentToPacer);
+  EXPECT_TRUE(it != stats_map.end());
 }
 
 TEST_F(TestLogging, GenericLogging) {
   // Insert multiple generic types.
-  const size_t kNumRuns = 1000;
+  const size_t kNumRuns = 20;//1000;
   const int kBaseValue = 20;
+  int sum_value_rtt = 0;
+  int sum_value_pl = 0;
+  int sum_value_jitter = 0;
+  uint64 sumsq_value_rtt = 0;
+  uint64 sumsq_value_pl = 0;
+  uint64 sumsq_value_jitter = 0;
+  int min_value, max_value;
   for (size_t i = 0; i < kNumRuns; ++i) {
     int value = kBaseValue + base::RandInt(-5, 5);
+    sum_value_rtt += value;
+    sumsq_value_rtt += value * value;
     logging_->InsertGenericEvent(testing_clock_.NowTicks(), kRttMs, value);
     if (i % 2) {
       logging_->InsertGenericEvent(testing_clock_.NowTicks(), kPacketLoss,
                                    value);
+      sum_value_pl += value;
+      sumsq_value_pl += value * value;
     }
     if (!(i % 4)) {
       logging_->InsertGenericEvent(testing_clock_.NowTicks(), kJitterMs, value);
+      sum_value_jitter += value;
+      sumsq_value_jitter += value * value;
+    }
+    if (i == 0) {
+      min_value = value;
+      max_value = value;
+    } else if (min_value > value) {
+      min_value = value;
+    } else if (max_value < value) {
+      max_value = value;
     }
   }
   GenericRawMap raw_map = logging_->GetGenericRawData();
-  const GenericStatsMap* stats_map = logging_->GetGenericStatsData();
+  GenericStatsMap stats_map = logging_->GetGenericStatsData();
   // Size of generic map = number of different events.
   EXPECT_EQ(3u, raw_map.size());
-  EXPECT_EQ(3u, stats_map->size());
+  EXPECT_EQ(3u, stats_map.size());
   // Raw events - size of internal map = number of calls.
   GenericRawMap::iterator rit = raw_map.find(kRttMs);
   EXPECT_EQ(kNumRuns, rit->second.value.size());
   EXPECT_EQ(kNumRuns, rit->second.timestamp.size());
   rit = raw_map.find(kPacketLoss);
   EXPECT_EQ(kNumRuns / 2, rit->second.value.size());
   EXPECT_EQ(kNumRuns / 2, rit->second.timestamp.size());
   rit = raw_map.find(kJitterMs);
   EXPECT_EQ(kNumRuns / 4, rit->second.value.size());
   EXPECT_EQ(kNumRuns / 4, rit->second.timestamp.size());
-  // Stats - one value per event.
-  GenericStatsMap::const_iterator sit = stats_map->find(kRttMs);
-  EXPECT_NEAR(kBaseValue, sit->second, 2.5);
-  sit = stats_map->find(kPacketLoss);
-  EXPECT_NEAR(kBaseValue, sit->second, 2.5);
-  sit = stats_map->find(kJitterMs);
-  EXPECT_NEAR(kBaseValue, sit->second, 2.5);
+  // Stats - one value per all events.
+  GenericStatsMap::const_iterator sit = stats_map.find(kRttMs);
+  EXPECT_EQ(sum_value_rtt, sit->second.sum);
+  EXPECT_EQ(sumsq_value_rtt, sit->second.sum_squared);
+  EXPECT_LE(min_value, sit->second.min);
+  EXPECT_GE(max_value, sit->second.max);
+  sit = stats_map.find(kPacketLoss);
+  EXPECT_EQ(sum_value_pl, sit->second.sum);
+  EXPECT_EQ(sumsq_value_pl, sit->second.sum_squared);
+  EXPECT_LE(min_value, sit->second.min);
+  EXPECT_GE(max_value, sit->second.max);
+  sit = stats_map.find(kJitterMs);
+  EXPECT_EQ(sumsq_value_jitter, sit->second.sum_squared);
+  EXPECT_LE(min_value, sit->second.min);
+  EXPECT_GE(max_value, sit->second.max);
 }
 
 TEST_F(TestLogging, RtcpMultipleEventFrameLogging) {
   base::TimeTicks start_time = testing_clock_.NowTicks();
   base::TimeDelta time_interval = testing_clock_.NowTicks() - start_time;
   uint32 rtp_timestamp = 0;
   uint32 frame_id = 0;
   do {
     logging_->InsertFrameEvent(testing_clock_.NowTicks(), kAudioFrameCaptured,
                                rtp_timestamp, frame_id);
@@ skipping 13 matching lines @@
     rtp_timestamp += kFrameIntervalMs * 90;
     ++frame_id;
     time_interval = testing_clock_.NowTicks() - start_time;
   }  while (time_interval.InSeconds() < kIntervalTime1S);
   // Get logging data.
   FrameRawMap frame_map = logging_->GetFrameRawData();
   // Size of map should be equal to the number of frames logged.
   EXPECT_EQ(frame_id, frame_map.size());
   // Multiple events captured per frame.
 
-  AudioRtcpRawMap audio_rtcp = logging_->GetAudioRtcpRawData();
+  AudioRtcpRawMap audio_rtcp = logging_->GetAndResetAudioRtcpRawData();
   EXPECT_EQ(0u, audio_rtcp.size());
 
-  VideoRtcpRawMap video_rtcp = logging_->GetVideoRtcpRawData();
+  VideoRtcpRawMap video_rtcp = logging_->GetAndResetVideoRtcpRawData();
   EXPECT_EQ((frame_id + 1) / 2, video_rtcp.size());
 }
 
 }  // namespace cast
 }  // namespace media