Move base to DEPS

base/metrics/sparse_histogram_unittest.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/metrics/sparse_histogram.h"
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/metrics/histogram_base.h"
-#include "base/metrics/histogram_samples.h"
-#include "base/metrics/sample_map.h"
-#include "base/metrics/statistics_recorder.h"
-#include "base/pickle.h"
-#include "base/strings/stringprintf.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-
-class SparseHistogramTest : public testing::Test {
- protected:
-  void SetUp() override {
-    // Each test will have a clean state (no Histogram / BucketRanges
-    // registered).
-    InitializeStatisticsRecorder();
-  }
-
-  void TearDown() override { UninitializeStatisticsRecorder(); }
-
-  void InitializeStatisticsRecorder() {
-    statistics_recorder_ = new StatisticsRecorder();
-  }
-
-  void UninitializeStatisticsRecorder() {
-    delete statistics_recorder_;
-    statistics_recorder_ = NULL;
-  }
-
-  scoped_ptr<SparseHistogram> NewSparseHistogram(const std::string& name) {
-    return scoped_ptr<SparseHistogram>(new SparseHistogram(name));
-  }
-
-  StatisticsRecorder* statistics_recorder_;
-};
-
-TEST_F(SparseHistogramTest, BasicTest) {
-  scoped_ptr<SparseHistogram> histogram(NewSparseHistogram("Sparse"));
-  scoped_ptr<HistogramSamples> snapshot(histogram->SnapshotSamples());
-  EXPECT_EQ(0, snapshot->TotalCount());
-  EXPECT_EQ(0, snapshot->sum());
-
-  histogram->Add(100);
-  scoped_ptr<HistogramSamples> snapshot1(histogram->SnapshotSamples());
-  EXPECT_EQ(1, snapshot1->TotalCount());
-  EXPECT_EQ(1, snapshot1->GetCount(100));
-
-  histogram->Add(100);
-  histogram->Add(101);
-  scoped_ptr<HistogramSamples> snapshot2(histogram->SnapshotSamples());
-  EXPECT_EQ(3, snapshot2->TotalCount());
-  EXPECT_EQ(2, snapshot2->GetCount(100));
-  EXPECT_EQ(1, snapshot2->GetCount(101));
-}
-
-TEST_F(SparseHistogramTest, MacroBasicTest) {
-  UMA_HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);
-  UMA_HISTOGRAM_SPARSE_SLOWLY("Sparse", 200);
-  UMA_HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);
-
-  StatisticsRecorder::Histograms histograms;
-  StatisticsRecorder::GetHistograms(&histograms);
-
-  ASSERT_EQ(1U, histograms.size());
-  HistogramBase* sparse_histogram = histograms[0];
-
-  EXPECT_EQ(SPARSE_HISTOGRAM, sparse_histogram->GetHistogramType());
-  EXPECT_EQ("Sparse", sparse_histogram->histogram_name());
-  EXPECT_EQ(HistogramBase::kUmaTargetedHistogramFlag,
-            sparse_histogram->flags());
-
-  scoped_ptr<HistogramSamples> samples = sparse_histogram->SnapshotSamples();
-  EXPECT_EQ(3, samples->TotalCount());
-  EXPECT_EQ(2, samples->GetCount(100));
-  EXPECT_EQ(1, samples->GetCount(200));
-}
-
-TEST_F(SparseHistogramTest, MacroInLoopTest) {
-  // Unlike the macros in histogram.h, SparseHistogram macros can have a
-  // variable as histogram name.
-  for (int i = 0; i < 2; i++) {
-    std::string name = StringPrintf("Sparse%d", i + 1);
-    UMA_HISTOGRAM_SPARSE_SLOWLY(name, 100);
-  }
-
-  StatisticsRecorder::Histograms histograms;
-  StatisticsRecorder::GetHistograms(&histograms);
-  ASSERT_EQ(2U, histograms.size());
-
-  std::string name1 = histograms[0]->histogram_name();
-  std::string name2 = histograms[1]->histogram_name();
-  EXPECT_TRUE(("Sparse1" == name1 && "Sparse2" == name2) ||
-              ("Sparse2" == name1 && "Sparse1" == name2));
-}
-
-TEST_F(SparseHistogramTest, Serialize) {
-  scoped_ptr<SparseHistogram> histogram(NewSparseHistogram("Sparse"));
-  histogram->SetFlags(HistogramBase::kIPCSerializationSourceFlag);
-
-  Pickle pickle;
-  histogram->SerializeInfo(&pickle);
-
-  PickleIterator iter(pickle);
-
-  int type;
-  EXPECT_TRUE(iter.ReadInt(&type));
-  EXPECT_EQ(SPARSE_HISTOGRAM, type);
-
-  std::string name;
-  EXPECT_TRUE(iter.ReadString(&name));
-  EXPECT_EQ("Sparse", name);
-
-  int flag;
-  EXPECT_TRUE(iter.ReadInt(&flag));
-  EXPECT_EQ(HistogramBase::kIPCSerializationSourceFlag, flag);
-
-  // No more data in the pickle.
-  EXPECT_FALSE(iter.SkipBytes(1));
-}
-
-}  // namespace base