| /* |
| * 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/system_wrappers/include/metrics.h" |
| #include "webrtc/system_wrappers/include/metrics_default.h" |
| #include "webrtc/test/gtest.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| const int kSample = 22; |
| const char kName[] = "Name"; |
| |
| int NumSamples( |
| const std::string& name, |
| const std::map<std::string, std::unique_ptr<metrics::SampleInfo>>& |
| histograms) { |
| const auto it = histograms.find(name); |
| if (it == histograms.end()) |
| return 0; |
| |
| int num_samples = 0; |
| for (const auto& sample : it->second->samples) |
| num_samples += sample.second; |
| |
| return num_samples; |
| } |
| |
| int NumEvents(const std::string& name, |
| int sample, |
| const std::map<std::string, std::unique_ptr<metrics::SampleInfo>>& |
| histograms) { |
| const auto it = histograms.find(name); |
| if (it == histograms.end()) |
| return 0; |
| |
| const auto it_sample = it->second->samples.find(sample); |
| if (it_sample == it->second->samples.end()) |
| return 0; |
| |
| return it_sample->second; |
| } |
| } // namespace |
| |
| class MetricsDefaultTest : public ::testing::Test { |
| public: |
| MetricsDefaultTest() {} |
| |
| protected: |
| virtual void SetUp() { |
| metrics::Reset(); |
| } |
| }; |
| |
| TEST_F(MetricsDefaultTest, Reset) { |
| RTC_HISTOGRAM_PERCENTAGE(kName, kSample); |
| EXPECT_EQ(1, metrics::NumSamples(kName)); |
| metrics::Reset(); |
| EXPECT_EQ(0, metrics::NumSamples(kName)); |
| } |
| |
| TEST_F(MetricsDefaultTest, NumSamples) { |
| RTC_HISTOGRAM_PERCENTAGE(kName, 5); |
| RTC_HISTOGRAM_PERCENTAGE(kName, 5); |
| RTC_HISTOGRAM_PERCENTAGE(kName, 10); |
| EXPECT_EQ(3, metrics::NumSamples(kName)); |
| EXPECT_EQ(0, metrics::NumSamples("NonExisting")); |
| } |
| |
| TEST_F(MetricsDefaultTest, NumEvents) { |
| RTC_HISTOGRAM_PERCENTAGE(kName, 5); |
| RTC_HISTOGRAM_PERCENTAGE(kName, 5); |
| RTC_HISTOGRAM_PERCENTAGE(kName, 10); |
| EXPECT_EQ(2, metrics::NumEvents(kName, 5)); |
| EXPECT_EQ(1, metrics::NumEvents(kName, 10)); |
| EXPECT_EQ(0, metrics::NumEvents(kName, 11)); |
| EXPECT_EQ(0, metrics::NumEvents("NonExisting", 5)); |
| } |
| |
| TEST_F(MetricsDefaultTest, MinSample) { |
| RTC_HISTOGRAM_PERCENTAGE(kName, kSample); |
| RTC_HISTOGRAM_PERCENTAGE(kName, kSample + 1); |
| EXPECT_EQ(kSample, metrics::MinSample(kName)); |
| EXPECT_EQ(-1, metrics::MinSample("NonExisting")); |
| } |
| |
| TEST_F(MetricsDefaultTest, Overflow) { |
| const std::string kName = "Overflow"; |
| // Samples should end up in overflow bucket. |
| RTC_HISTOGRAM_PERCENTAGE(kName, 101); |
| EXPECT_EQ(1, metrics::NumSamples(kName)); |
| EXPECT_EQ(1, metrics::NumEvents(kName, 101)); |
| RTC_HISTOGRAM_PERCENTAGE(kName, 102); |
| EXPECT_EQ(2, metrics::NumSamples(kName)); |
| EXPECT_EQ(2, metrics::NumEvents(kName, 101)); |
| } |
| |
| TEST_F(MetricsDefaultTest, Underflow) { |
| const std::string kName = "Underflow"; |
| // Samples should end up in underflow bucket. |
| RTC_HISTOGRAM_COUNTS_10000(kName, 0); |
| EXPECT_EQ(1, metrics::NumSamples(kName)); |
| EXPECT_EQ(1, metrics::NumEvents(kName, 0)); |
| RTC_HISTOGRAM_COUNTS_10000(kName, -1); |
| EXPECT_EQ(2, metrics::NumSamples(kName)); |
| EXPECT_EQ(2, metrics::NumEvents(kName, 0)); |
| } |
| |
| TEST_F(MetricsDefaultTest, GetAndReset) { |
| std::map<std::string, std::unique_ptr<metrics::SampleInfo>> histograms; |
| metrics::GetAndReset(&histograms); |
| EXPECT_EQ(0u, histograms.size()); |
| RTC_HISTOGRAM_PERCENTAGE("Histogram1", 4); |
| RTC_HISTOGRAM_PERCENTAGE("Histogram1", 5); |
| RTC_HISTOGRAM_PERCENTAGE("Histogram1", 5); |
| RTC_HISTOGRAM_PERCENTAGE("Histogram2", 10); |
| EXPECT_EQ(3, metrics::NumSamples("Histogram1")); |
| EXPECT_EQ(1, metrics::NumSamples("Histogram2")); |
| |
| metrics::GetAndReset(&histograms); |
| EXPECT_EQ(2u, histograms.size()); |
| EXPECT_EQ(0, metrics::NumSamples("Histogram1")); |
| EXPECT_EQ(0, metrics::NumSamples("Histogram2")); |
| |
| EXPECT_EQ(3, NumSamples("Histogram1", histograms)); |
| EXPECT_EQ(1, NumSamples("Histogram2", histograms)); |
| EXPECT_EQ(1, NumEvents("Histogram1", 4, histograms)); |
| EXPECT_EQ(2, NumEvents("Histogram1", 5, histograms)); |
| EXPECT_EQ(1, NumEvents("Histogram2", 10, histograms)); |
| |
| // Add samples after reset. |
| metrics::GetAndReset(&histograms); |
| EXPECT_EQ(0u, histograms.size()); |
| RTC_HISTOGRAM_PERCENTAGE("Histogram1", 50); |
| RTC_HISTOGRAM_PERCENTAGE("Histogram2", 8); |
| EXPECT_EQ(1, metrics::NumSamples("Histogram1")); |
| EXPECT_EQ(1, metrics::NumSamples("Histogram2")); |
| EXPECT_EQ(1, metrics::NumEvents("Histogram1", 50)); |
| EXPECT_EQ(1, metrics::NumEvents("Histogram2", 8)); |
| } |
| |
| TEST_F(MetricsDefaultTest, TestMinMaxBucket) { |
| const std::string kName = "MinMaxCounts100"; |
| RTC_HISTOGRAM_COUNTS_100(kName, 4); |
| |
| std::map<std::string, std::unique_ptr<metrics::SampleInfo>> histograms; |
| metrics::GetAndReset(&histograms); |
| EXPECT_EQ(1u, histograms.size()); |
| EXPECT_EQ(kName, histograms.begin()->second->name); |
| EXPECT_EQ(1, histograms.begin()->second->min); |
| EXPECT_EQ(100, histograms.begin()->second->max); |
| EXPECT_EQ(50u, histograms.begin()->second->bucket_count); |
| EXPECT_EQ(1u, histograms.begin()->second->samples.size()); |
| } |
| |
| } // namespace webrtc |