1 /*
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "system_wrappers/include/metrics.h"
12
13 #include "absl/strings/string_view.h"
14 #include "test/gmock.h"
15 #include "test/gtest.h"
16
17 using ::testing::ElementsAre;
18 using ::testing::IsEmpty;
19 using ::testing::Pair;
20
21 #if RTC_METRICS_ENABLED
22 namespace webrtc {
23 namespace {
24 const int kSample = 22;
25
AddSparseSample(absl::string_view name,int sample)26 void AddSparseSample(absl::string_view name, int sample) {
27 RTC_HISTOGRAM_COUNTS_SPARSE_100(name, sample);
28 }
AddSampleWithVaryingName(int index,absl::string_view name,int sample)29 void AddSampleWithVaryingName(int index, absl::string_view name, int sample) {
30 RTC_HISTOGRAMS_COUNTS_100(index, name, sample);
31 }
32 } // namespace
33
34 class MetricsTest : public ::testing::Test {
35 public:
MetricsTest()36 MetricsTest() {}
37
38 protected:
SetUp()39 void SetUp() override { metrics::Reset(); }
40 };
41
TEST_F(MetricsTest,InitiallyNoSamples)42 TEST_F(MetricsTest, InitiallyNoSamples) {
43 EXPECT_EQ(0, metrics::NumSamples("NonExisting"));
44 EXPECT_EQ(0, metrics::NumEvents("NonExisting", kSample));
45 EXPECT_THAT(metrics::Samples("NonExisting"), IsEmpty());
46 }
47
TEST_F(MetricsTest,RtcHistogramPercent_AddSample)48 TEST_F(MetricsTest, RtcHistogramPercent_AddSample) {
49 const std::string kName = "Percentage";
50 RTC_HISTOGRAM_PERCENTAGE(kName, kSample);
51 EXPECT_EQ(1, metrics::NumSamples(kName));
52 EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
53 EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
54 }
55
TEST_F(MetricsTest,RtcHistogramEnumeration_AddSample)56 TEST_F(MetricsTest, RtcHistogramEnumeration_AddSample) {
57 const std::string kName = "Enumeration";
58 RTC_HISTOGRAM_ENUMERATION(kName, kSample, kSample + 1);
59 EXPECT_EQ(1, metrics::NumSamples(kName));
60 EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
61 EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
62 }
63
TEST_F(MetricsTest,RtcHistogramBoolean_AddSample)64 TEST_F(MetricsTest, RtcHistogramBoolean_AddSample) {
65 const std::string kName = "Boolean";
66 const int kSample = 0;
67 RTC_HISTOGRAM_BOOLEAN(kName, kSample);
68 EXPECT_EQ(1, metrics::NumSamples(kName));
69 EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
70 EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
71 }
72
TEST_F(MetricsTest,RtcHistogramCountsSparse_AddSample)73 TEST_F(MetricsTest, RtcHistogramCountsSparse_AddSample) {
74 const std::string kName = "CountsSparse100";
75 RTC_HISTOGRAM_COUNTS_SPARSE_100(kName, kSample);
76 EXPECT_EQ(1, metrics::NumSamples(kName));
77 EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
78 EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
79 }
80
TEST_F(MetricsTest,RtcHistogramCounts_AddSample)81 TEST_F(MetricsTest, RtcHistogramCounts_AddSample) {
82 const std::string kName = "Counts100";
83 RTC_HISTOGRAM_COUNTS_100(kName, kSample);
84 EXPECT_EQ(1, metrics::NumSamples(kName));
85 EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
86 EXPECT_THAT(metrics::Samples(kName), ElementsAre(Pair(kSample, 1)));
87 }
88
TEST_F(MetricsTest,RtcHistogramCounts_AddMultipleSamples)89 TEST_F(MetricsTest, RtcHistogramCounts_AddMultipleSamples) {
90 const std::string kName = "Counts200";
91 const int kNumSamples = 10;
92 std::map<int, int> samples;
93 for (int i = 1; i <= kNumSamples; ++i) {
94 RTC_HISTOGRAM_COUNTS_200(kName, i);
95 EXPECT_EQ(1, metrics::NumEvents(kName, i));
96 EXPECT_EQ(i, metrics::NumSamples(kName));
97 samples[i] = 1;
98 }
99 EXPECT_EQ(samples, metrics::Samples(kName));
100 }
101
TEST_F(MetricsTest,RtcHistogramsCounts_AddSample)102 TEST_F(MetricsTest, RtcHistogramsCounts_AddSample) {
103 AddSampleWithVaryingName(0, "Name1", kSample);
104 AddSampleWithVaryingName(1, "Name2", kSample + 1);
105 AddSampleWithVaryingName(2, "Name3", kSample + 2);
106 EXPECT_EQ(1, metrics::NumSamples("Name1"));
107 EXPECT_EQ(1, metrics::NumSamples("Name2"));
108 EXPECT_EQ(1, metrics::NumSamples("Name3"));
109 EXPECT_EQ(1, metrics::NumEvents("Name1", kSample + 0));
110 EXPECT_EQ(1, metrics::NumEvents("Name2", kSample + 1));
111 EXPECT_EQ(1, metrics::NumEvents("Name3", kSample + 2));
112 EXPECT_THAT(metrics::Samples("Name1"), ElementsAre(Pair(kSample + 0, 1)));
113 EXPECT_THAT(metrics::Samples("Name2"), ElementsAre(Pair(kSample + 1, 1)));
114 EXPECT_THAT(metrics::Samples("Name3"), ElementsAre(Pair(kSample + 2, 1)));
115 }
116
117 #if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
118 using MetricsDeathTest = MetricsTest;
TEST_F(MetricsDeathTest,RtcHistogramsCounts_InvalidIndex)119 TEST_F(MetricsDeathTest, RtcHistogramsCounts_InvalidIndex) {
120 EXPECT_DEATH(RTC_HISTOGRAMS_COUNTS_1000(-1, "Name", kSample), "");
121 EXPECT_DEATH(RTC_HISTOGRAMS_COUNTS_1000(3, "Name", kSample), "");
122 EXPECT_DEATH(RTC_HISTOGRAMS_COUNTS_1000(3u, "Name", kSample), "");
123 }
124 #endif
125
TEST_F(MetricsTest,RtcHistogramSparse_NonConstantNameWorks)126 TEST_F(MetricsTest, RtcHistogramSparse_NonConstantNameWorks) {
127 AddSparseSample("Sparse1", kSample);
128 AddSparseSample("Sparse2", kSample);
129 EXPECT_EQ(1, metrics::NumSamples("Sparse1"));
130 EXPECT_EQ(1, metrics::NumSamples("Sparse2"));
131 EXPECT_THAT(metrics::Samples("Sparse1"), ElementsAre(Pair(kSample, 1)));
132 EXPECT_THAT(metrics::Samples("Sparse2"), ElementsAre(Pair(kSample, 1)));
133 }
134
135 } // namespace webrtc
136 #endif
137