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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/metrics/sample_map.h" | |
| 6 | |
| 7 #include "base/memory/scoped_ptr.h" | |
| 8 #include "testing/gtest/include/gtest/gtest.h" | |
| 9 | |
| 10 namespace base { | |
| 11 namespace { | |
| 12 | |
| 13 TEST(SampleMapTest, AccumulateTest) { | |
| 14 SampleMap samples; | |
| 15 | |
| 16 samples.Accumulate(1, 100); | |
| 17 samples.Accumulate(2, 200); | |
| 18 samples.Accumulate(1, -200); | |
| 19 EXPECT_EQ(-100, samples.GetCount(1)); | |
| 20 EXPECT_EQ(200, samples.GetCount(2)); | |
| 21 | |
| 22 EXPECT_EQ(300, samples.sum()); | |
| 23 EXPECT_EQ(100, samples.TotalCount()); | |
| 24 EXPECT_EQ(samples.redundant_count(), samples.TotalCount()); | |
| 25 } | |
| 26 | |
| 27 TEST(SampleMapTest, AddSubtractTest) { | |
| 28 SampleMap samples1; | |
| 29 SampleMap samples2; | |
| 30 | |
| 31 samples1.Accumulate(1, 100); | |
| 32 samples1.Accumulate(2, 100); | |
| 33 samples1.Accumulate(3, 100); | |
| 34 | |
| 35 samples2.Accumulate(1, 200); | |
| 36 samples2.Accumulate(2, 200); | |
| 37 samples2.Accumulate(4, 200); | |
| 38 | |
| 39 samples1.Add(samples2); | |
| 40 EXPECT_EQ(300, samples1.GetCount(1)); | |
| 41 EXPECT_EQ(300, samples1.GetCount(2)); | |
| 42 EXPECT_EQ(100, samples1.GetCount(3)); | |
| 43 EXPECT_EQ(200, samples1.GetCount(4)); | |
| 44 EXPECT_EQ(2000, samples1.sum()); | |
| 45 EXPECT_EQ(900, samples1.TotalCount()); | |
| 46 EXPECT_EQ(samples1.redundant_count(), samples1.TotalCount()); | |
| 47 | |
| 48 samples1.Subtract(samples2); | |
| 49 EXPECT_EQ(100, samples1.GetCount(1)); | |
| 50 EXPECT_EQ(100, samples1.GetCount(2)); | |
| 51 EXPECT_EQ(100, samples1.GetCount(3)); | |
| 52 EXPECT_EQ(0, samples1.GetCount(4)); | |
| 53 EXPECT_EQ(600, samples1.sum()); | |
| 54 EXPECT_EQ(300, samples1.TotalCount()); | |
| 55 EXPECT_EQ(samples1.redundant_count(), samples1.TotalCount()); | |
| 56 } | |
| 57 | |
| 58 TEST(SampleMapIteratorTest, IterateTest) { | |
| 59 SampleMap samples; | |
| 60 samples.Accumulate(1, 100); | |
| 61 samples.Accumulate(2, 200); | |
| 62 samples.Accumulate(4, -300); | |
| 63 samples.Accumulate(5, 0); | |
| 64 | |
| 65 scoped_ptr<SampleCountIterator> it = samples.Iterator(); | |
| 66 | |
| 67 HistogramBase::Sample min; | |
| 68 HistogramBase::Sample max; | |
| 69 HistogramBase::Count count; | |
| 70 | |
| 71 it->Get(&min, &max, &count); | |
| 72 EXPECT_EQ(1, min); | |
| 73 EXPECT_EQ(2, max); | |
| 74 EXPECT_EQ(100, count); | |
| 75 EXPECT_FALSE(it->GetBucketIndex(NULL)); | |
| 76 | |
| 77 it->Next(); | |
| 78 it->Get(&min, &max, &count); | |
| 79 EXPECT_EQ(2, min); | |
| 80 EXPECT_EQ(3, max); | |
| 81 EXPECT_EQ(200, count); | |
| 82 | |
| 83 it->Next(); | |
| 84 it->Get(&min, &max, &count); | |
| 85 EXPECT_EQ(4, min); | |
| 86 EXPECT_EQ(5, max); | |
| 87 EXPECT_EQ(-300, count); | |
| 88 | |
| 89 it->Next(); | |
| 90 EXPECT_TRUE(it->Done()); | |
| 91 } | |
| 92 | |
| 93 TEST(SampleMapIteratorTest, SkipEmptyRanges) { | |
| 94 SampleMap samples; | |
| 95 samples.Accumulate(5, 1); | |
| 96 samples.Accumulate(10, 2); | |
| 97 samples.Accumulate(15, 3); | |
| 98 samples.Accumulate(20, 4); | |
| 99 samples.Accumulate(25, 5); | |
| 100 | |
| 101 SampleMap samples2; | |
| 102 samples2.Accumulate(5, 1); | |
| 103 samples2.Accumulate(20, 4); | |
| 104 samples2.Accumulate(25, 5); | |
| 105 | |
| 106 samples.Subtract(samples2); | |
| 107 | |
| 108 scoped_ptr<SampleCountIterator> it = samples.Iterator(); | |
| 109 EXPECT_FALSE(it->Done()); | |
| 110 | |
| 111 HistogramBase::Sample min; | |
| 112 HistogramBase::Sample max; | |
| 113 HistogramBase::Count count; | |
| 114 | |
| 115 it->Get(&min, &max, &count); | |
| 116 EXPECT_EQ(10, min); | |
| 117 EXPECT_EQ(11, max); | |
| 118 EXPECT_EQ(2, count); | |
| 119 | |
| 120 it->Next(); | |
| 121 EXPECT_FALSE(it->Done()); | |
| 122 | |
| 123 it->Get(&min, &max, &count); | |
| 124 EXPECT_EQ(15, min); | |
| 125 EXPECT_EQ(16, max); | |
| 126 EXPECT_EQ(3, count); | |
| 127 | |
| 128 it->Next(); | |
| 129 EXPECT_TRUE(it->Done()); | |
| 130 } | |
| 131 | |
| 132 #if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST | |
| 133 | |
| 134 TEST(SampleMapIteratorDeathTest, IterateDoneTest) { | |
| 135 SampleMap samples; | |
| 136 | |
| 137 scoped_ptr<SampleCountIterator> it = samples.Iterator(); | |
| 138 | |
| 139 EXPECT_TRUE(it->Done()); | |
| 140 | |
| 141 HistogramBase::Sample min; | |
| 142 HistogramBase::Sample max; | |
| 143 HistogramBase::Count count; | |
| 144 EXPECT_DEATH(it->Get(&min, &max, &count), ""); | |
| 145 | |
| 146 EXPECT_DEATH(it->Next(), ""); | |
| 147 | |
| 148 samples.Accumulate(1, 100); | |
| 149 it = samples.Iterator(); | |
| 150 EXPECT_FALSE(it->Done()); | |
| 151 } | |
| 152 | |
| 153 #endif | |
| 154 // (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST | |
| 155 | |
| 156 } // namespace | |
| 157 } // namespace base | |
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