123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117 |
- // Copyright 2014 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/histogram_snapshot_manager.h"
- #include <string>
- #include <vector>
- #include "base/containers/contains.h"
- #include "base/metrics/histogram_delta_serialization.h"
- #include "base/metrics/histogram_macros.h"
- #include "base/metrics/sample_vector.h"
- #include "base/metrics/statistics_recorder.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace base {
- class HistogramFlattenerDeltaRecorder : public HistogramFlattener {
- public:
- HistogramFlattenerDeltaRecorder() = default;
- HistogramFlattenerDeltaRecorder(const HistogramFlattenerDeltaRecorder&) =
- delete;
- HistogramFlattenerDeltaRecorder& operator=(
- const HistogramFlattenerDeltaRecorder&) = delete;
- void RecordDelta(const HistogramBase& histogram,
- const HistogramSamples& snapshot) override {
- recorded_delta_histogram_names_.push_back(histogram.histogram_name());
- // Use CHECK instead of ASSERT to get full stack-trace and thus origin.
- CHECK(!Contains(recorded_delta_histogram_sum_, histogram.histogram_name()));
- // Keep pointer to snapshot for testing. This really isn't ideal but the
- // snapshot-manager keeps the snapshot alive until it's "forgotten".
- recorded_delta_histogram_sum_[histogram.histogram_name()] = snapshot.sum();
- }
- void Reset() {
- recorded_delta_histogram_names_.clear();
- recorded_delta_histogram_sum_.clear();
- }
- std::vector<std::string> GetRecordedDeltaHistogramNames() {
- return recorded_delta_histogram_names_;
- }
- int64_t GetRecordedDeltaHistogramSum(const std::string& name) {
- EXPECT_TRUE(Contains(recorded_delta_histogram_sum_, name));
- return recorded_delta_histogram_sum_[name];
- }
- private:
- std::vector<std::string> recorded_delta_histogram_names_;
- std::map<std::string, int64_t> recorded_delta_histogram_sum_;
- };
- class HistogramSnapshotManagerTest : public testing::Test {
- protected:
- HistogramSnapshotManagerTest()
- : statistics_recorder_(StatisticsRecorder::CreateTemporaryForTesting()),
- histogram_snapshot_manager_(&histogram_flattener_delta_recorder_) {}
- ~HistogramSnapshotManagerTest() override = default;
- std::unique_ptr<StatisticsRecorder> statistics_recorder_;
- HistogramFlattenerDeltaRecorder histogram_flattener_delta_recorder_;
- HistogramSnapshotManager histogram_snapshot_manager_;
- };
- TEST_F(HistogramSnapshotManagerTest, PrepareDeltasNoFlagsFilter) {
- // kNoFlags filter should record all histograms.
- UMA_HISTOGRAM_ENUMERATION("UmaHistogram", 1, 4);
- UMA_STABILITY_HISTOGRAM_ENUMERATION("UmaStabilityHistogram", 1, 2);
- StatisticsRecorder::PrepareDeltas(false, HistogramBase::kNoFlags,
- HistogramBase::kNoFlags,
- &histogram_snapshot_manager_);
- const std::vector<std::string>& histograms =
- histogram_flattener_delta_recorder_.GetRecordedDeltaHistogramNames();
- EXPECT_EQ(2U, histograms.size());
- EXPECT_EQ("UmaHistogram", histograms[0]);
- EXPECT_EQ("UmaStabilityHistogram", histograms[1]);
- }
- TEST_F(HistogramSnapshotManagerTest, PrepareDeltasUmaHistogramFlagFilter) {
- // Note that kUmaStabilityHistogramFlag includes kUmaTargetedHistogramFlag.
- UMA_HISTOGRAM_ENUMERATION("UmaHistogram", 1, 4);
- UMA_STABILITY_HISTOGRAM_ENUMERATION("UmaStabilityHistogram", 1, 2);
- StatisticsRecorder::PrepareDeltas(false, HistogramBase::kNoFlags,
- HistogramBase::kUmaTargetedHistogramFlag,
- &histogram_snapshot_manager_);
- const std::vector<std::string>& histograms =
- histogram_flattener_delta_recorder_.GetRecordedDeltaHistogramNames();
- EXPECT_EQ(2U, histograms.size());
- EXPECT_EQ("UmaHistogram", histograms[0]);
- EXPECT_EQ("UmaStabilityHistogram", histograms[1]);
- }
- TEST_F(HistogramSnapshotManagerTest,
- PrepareDeltasUmaStabilityHistogramFlagFilter) {
- UMA_HISTOGRAM_ENUMERATION("UmaHistogram", 1, 4);
- UMA_STABILITY_HISTOGRAM_ENUMERATION("UmaStabilityHistogram", 1, 2);
- StatisticsRecorder::PrepareDeltas(false, HistogramBase::kNoFlags,
- HistogramBase::kUmaStabilityHistogramFlag,
- &histogram_snapshot_manager_);
- const std::vector<std::string>& histograms =
- histogram_flattener_delta_recorder_.GetRecordedDeltaHistogramNames();
- EXPECT_EQ(1U, histograms.size());
- EXPECT_EQ("UmaStabilityHistogram", histograms[0]);
- }
- } // namespace base
|