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/*
* 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 "system_wrappers/include/metrics.h"
#include "absl/strings/string_view.h"
#include "test/gmock.h"
#include "test/gtest.h"
using ::testing::ElementsAre;
using ::testing::IsEmpty;
using ::testing::Pair;
#if RTC_METRICS_ENABLED
namespace webrtc {
namespace {
const int kSample = 22;
void AddSparseSample(absl::string_view name, int sample) {
RTC_HISTOGRAM_COUNTS_SPARSE_100(name, sample);
}
void AddSampleWithVaryingName(int index, absl::string_view name, int sample) {
RTC_HISTOGRAMS_COUNTS_100(index, name, sample);
}
} // namespace
class MetricsTest : public ::testing::Test {
public:
MetricsTest() {}
protected:
void SetUp() override { metrics::Reset(); }
};
TEST_F(MetricsTest, InitiallyNoSamples) {
EXPECT_EQ(0, metrics::NumSamples("NonExisting"));
EXPECT_EQ(0, metrics::NumEvents("NonExisting", kSample));
EXPECT_THAT(metrics::Samples("NonExisting"), IsEmpty());
}
TEST_F(MetricsTest, RtcHistogramPercent_AddSample) {
const std::string kName = "Percentage";
RTC_HISTOGRAM_PERCENTAGE(kName, kSample);
EXPECT_EQ(1, metrics::NumSamples(kName));
EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
}
TEST_F(MetricsTest, RtcHistogramEnumeration_AddSample) {
const std::string kName = "Enumeration";
RTC_HISTOGRAM_ENUMERATION(kName, kSample, kSample + 1);
EXPECT_EQ(1, metrics::NumSamples(kName));
EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
}
TEST_F(MetricsTest, RtcHistogramBoolean_AddSample) {
const std::string kName = "Boolean";
const int kSample = 0;
RTC_HISTOGRAM_BOOLEAN(kName, kSample);
EXPECT_EQ(1, metrics::NumSamples(kName));
EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
}
TEST_F(MetricsTest, RtcHistogramCountsSparse_AddSample) {
const std::string kName = "CountsSparse100";
RTC_HISTOGRAM_COUNTS_SPARSE_100(kName, kSample);
EXPECT_EQ(1, metrics::NumSamples(kName));
EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
}
TEST_F(MetricsTest, RtcHistogramCounts_AddSample) {
const std::string kName = "Counts100";
RTC_HISTOGRAM_COUNTS_100(kName, kSample);
EXPECT_EQ(1, metrics::NumSamples(kName));
EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
}
TEST_F(MetricsTest, RtcHistogramCounts_AddMultipleSamples) {
const std::string kName = "Counts200";
const int kNumSamples = 10;
std::map<int, int> samples;
for (int i = 1; i <= kNumSamples; ++i) {
RTC_HISTOGRAM_COUNTS_200(kName, i);
EXPECT_EQ(1, metrics::NumEvents(kName, i));
EXPECT_EQ(i, metrics::NumSamples(kName));
samples[i] = 1;
}
EXPECT_EQ(samples, metrics::Samples(kName));
}
TEST_F(MetricsTest, RtcHistogramsCounts_AddSample) {
AddSampleWithVaryingName(0, "Name1", kSample);
AddSampleWithVaryingName(1, "Name2", kSample + 1);
AddSampleWithVaryingName(2, "Name3", kSample + 2);
EXPECT_EQ(1, metrics::NumSamples("Name1"));
EXPECT_EQ(1, metrics::NumSamples("Name2"));
EXPECT_EQ(1, metrics::NumSamples("Name3"));
EXPECT_EQ(1, metrics::NumEvents("Name1", kSample + 0));
EXPECT_EQ(1, metrics::NumEvents("Name2", kSample + 1));
EXPECT_EQ(1, metrics::NumEvents("Name3", kSample + 2));
EXPECT_THAT(metrics::Samples("Name1"), ElementsAre(Pair(kSample + 0, 1)));
EXPECT_THAT(metrics::Samples("Name2"), ElementsAre(Pair(kSample + 1, 1)));
EXPECT_THAT(metrics::Samples("Name3"), ElementsAre(Pair(kSample + 2, 1)));
}
#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
using MetricsDeathTest = MetricsTest;
TEST_F(MetricsDeathTest, RtcHistogramsCounts_InvalidIndex) {
EXPECT_DEATH(RTC_HISTOGRAMS_COUNTS_1000(-1, "Name", kSample), "");
EXPECT_DEATH(RTC_HISTOGRAMS_COUNTS_1000(3, "Name", kSample), "");
EXPECT_DEATH(RTC_HISTOGRAMS_COUNTS_1000(3u, "Name", kSample), "");
}
#endif
TEST_F(MetricsTest, RtcHistogramSparse_NonConstantNameWorks) {
AddSparseSample("Sparse1", kSample);
AddSparseSample("Sparse2", kSample);
EXPECT_EQ(1, metrics::NumSamples("Sparse1"));
EXPECT_EQ(1, metrics::NumSamples("Sparse2"));
EXPECT_THAT(metrics::Samples("Sparse1"), ElementsAre(Pair(kSample, 1)));
EXPECT_THAT(metrics::Samples("Sparse2"), ElementsAre(Pair(kSample, 1)));
}
} // namespace webrtc
#endif
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