124 lines
3.0 KiB
C++
124 lines
3.0 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/memory/scoped_ptr.h"
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#include "base/metrics/sample_map.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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namespace {
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TEST(SampleMapTest, AccumulateTest) {
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SampleMap samples;
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samples.Accumulate(1, 100);
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samples.Accumulate(2, 200);
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samples.Accumulate(1, -200);
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EXPECT_EQ(-100, samples.GetCount(1));
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EXPECT_EQ(200, samples.GetCount(2));
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EXPECT_EQ(300, samples.sum());
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EXPECT_EQ(100, samples.TotalCount());
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EXPECT_EQ(samples.redundant_count(), samples.TotalCount());
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}
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TEST(SampleMapTest, AddSubtractTest) {
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SampleMap samples1;
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SampleMap samples2;
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samples1.Accumulate(1, 100);
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samples1.Accumulate(2, 100);
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samples1.Accumulate(3, 100);
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samples2.Accumulate(1, 200);
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samples2.Accumulate(2, 200);
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samples2.Accumulate(4, 200);
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samples1.Add(samples2);
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EXPECT_EQ(300, samples1.GetCount(1));
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EXPECT_EQ(300, samples1.GetCount(2));
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EXPECT_EQ(100, samples1.GetCount(3));
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EXPECT_EQ(200, samples1.GetCount(4));
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EXPECT_EQ(2000, samples1.sum());
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EXPECT_EQ(900, samples1.TotalCount());
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EXPECT_EQ(samples1.redundant_count(), samples1.TotalCount());
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samples1.Subtract(samples2);
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EXPECT_EQ(100, samples1.GetCount(1));
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EXPECT_EQ(100, samples1.GetCount(2));
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EXPECT_EQ(100, samples1.GetCount(3));
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EXPECT_EQ(0, samples1.GetCount(4));
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EXPECT_EQ(600, samples1.sum());
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EXPECT_EQ(300, samples1.TotalCount());
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EXPECT_EQ(samples1.redundant_count(), samples1.TotalCount());
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}
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TEST(SampleMapIteratorTest, IterateTest) {
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SampleMap samples;
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samples.Accumulate(1, 100);
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samples.Accumulate(2, 200);
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samples.Accumulate(4, -300);
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samples.Accumulate(5, 0);
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scoped_ptr<SampleCountIterator> it = samples.Iterator();
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HistogramBase::Sample min;
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HistogramBase::Sample max;
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HistogramBase::Count count;
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it->Get(&min, &max, &count);
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EXPECT_EQ(1, min);
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EXPECT_EQ(2, max);
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EXPECT_EQ(100, count);
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EXPECT_FALSE(it->GetBucketIndex(NULL));
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it->Next();
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it->Get(&min, &max, &count);
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EXPECT_EQ(2, min);
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EXPECT_EQ(3, max);
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EXPECT_EQ(200, count);
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it->Next();
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it->Get(&min, &max, &count);
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EXPECT_EQ(4, min);
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EXPECT_EQ(5, max);
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EXPECT_EQ(-300, count);
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it->Next();
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it->Get(&min, &max, &count);
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EXPECT_EQ(5, min);
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EXPECT_EQ(6, max);
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EXPECT_EQ(0, count);
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it->Next();
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EXPECT_TRUE(it->Done());
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}
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#if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST
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TEST(SampleMapIteratorDeathTest, IterateDoneTest) {
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SampleMap samples;
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scoped_ptr<SampleCountIterator> it = samples.Iterator();
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EXPECT_TRUE(it->Done());
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HistogramBase::Sample min;
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HistogramBase::Sample max;
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HistogramBase::Count count;
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EXPECT_DEATH(it->Get(&min, &max, &count), "");
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EXPECT_DEATH(it->Next(), "");
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samples.Accumulate(1, 100);
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it = samples.Iterator();
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EXPECT_FALSE(it->Done());
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}
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#endif
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// (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST
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} // namespace
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} // namespace base
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