webrtc/rtc_base/numerics/sample_counter_unittest.cc
Sergey Silkin 0237106559 Expose video freeze metrics in GetStats.
This adds the following non-standardized metrics to video receiver
stats:
- freezeCount
- pauseCount
- totalFreezesDuration
- totalPausesDuration
- totalFramesDuration
- sumOfSquaredFrameDurations

For description of these metrics see
https://henbos.github.io/webrtc-provisional-stats/#RTCVideoReceiverStats-dict*

Bug: webrtc:10145
Change-Id: I4c76d5651102e73b1592ffed561e6224f2badeb6
Reviewed-on: https://webrtc-review.googlesource.com/c/114840
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26523}
2019-02-04 09:58:08 +00:00

80 lines
2.3 KiB
C++

/*
* Copyright 2018 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 "rtc_base/numerics/sample_counter.h"
#include <initializer_list>
#include "test/gmock.h"
#include "test/gtest.h"
using testing::Eq;
namespace rtc {
TEST(SampleCounterTest, ProcessesNoSamples) {
constexpr int kMinSamples = 1;
SampleCounter counter;
EXPECT_THAT(counter.Avg(kMinSamples), Eq(absl::nullopt));
EXPECT_THAT(counter.Max(), Eq(absl::nullopt));
}
TEST(SampleCounterTest, NotEnoughSamples) {
constexpr int kMinSamples = 6;
SampleCounter counter;
for (int value : {1, 2, 3, 4, 5}) {
counter.Add(value);
}
EXPECT_THAT(counter.Avg(kMinSamples), Eq(absl::nullopt));
EXPECT_THAT(counter.Sum(kMinSamples), Eq(absl::nullopt));
EXPECT_THAT(counter.Max(), Eq(5));
}
TEST(SampleCounterTest, EnoughSamples) {
constexpr int kMinSamples = 5;
SampleCounter counter;
for (int value : {1, 2, 3, 4, 5}) {
counter.Add(value);
}
EXPECT_THAT(counter.Avg(kMinSamples), Eq(3));
EXPECT_THAT(counter.Sum(kMinSamples), Eq(15));
EXPECT_THAT(counter.Max(), Eq(5));
}
TEST(SampleCounterTest, ComputesVariance) {
constexpr int kMinSamples = 5;
SampleCounterWithVariance counter;
for (int value : {1, 2, 3, 4, 5}) {
counter.Add(value);
}
EXPECT_THAT(counter.Variance(kMinSamples), Eq(2));
}
TEST(SampleCounterTest, AggregatesTwoCounters) {
constexpr int kMinSamples = 5;
SampleCounterWithVariance counter1;
for (int value : {1, 2, 3}) {
counter1.Add(value);
}
SampleCounterWithVariance counter2;
for (int value : {4, 5}) {
counter2.Add(value);
}
// Before aggregation there is not enough samples.
EXPECT_THAT(counter1.Avg(kMinSamples), Eq(absl::nullopt));
EXPECT_THAT(counter1.Variance(kMinSamples), Eq(absl::nullopt));
// Aggregate counter2 in counter1.
counter1.Add(counter2);
EXPECT_THAT(counter1.Avg(kMinSamples), Eq(3));
EXPECT_THAT(counter1.Max(), Eq(5));
EXPECT_THAT(counter1.Variance(kMinSamples), Eq(2));
}
} // namespace rtc