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