cmds/statsd/tests/guardrail/StatsdStats_test.cpp - LeafOS-Project/android_frameworks_base - Gitiles

 // Copyright (C) 2017 The Android Open Source Project
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 #include "src/guardrail/StatsdStats.h"
 #include "statslog.h"
 #include "tests/statsd_test_util.h"

 #include <gtest/gtest.h>
 #include <vector>

 #ifdef __ANDROID__

 namespace android {
 namespace os {
 namespace statsd {

 using std::vector;

 TEST(StatsdStatsTest, TestValidConfigAdd) {
     StatsdStats stats;
     ConfigKey key(0, 12345);
     const int metricsCount = 10;
     const int conditionsCount = 20;
     const int matchersCount = 30;
     const int alertsCount = 10;
     stats.noteConfigReceived(key, metricsCount, conditionsCount, matchersCount, alertsCount, {},
                              true /*valid config*/);
     vector<uint8_t> output;
     stats.dumpStats(&output, false /*reset stats*/);

     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport = report.config_stats(0);
     EXPECT_EQ(0, configReport.uid());
     EXPECT_EQ(12345, configReport.id());
     EXPECT_EQ(metricsCount, configReport.metric_count());
     EXPECT_EQ(conditionsCount, configReport.condition_count());
     EXPECT_EQ(matchersCount, configReport.matcher_count());
     EXPECT_EQ(alertsCount, configReport.alert_count());
     EXPECT_EQ(true, configReport.is_valid());
     EXPECT_FALSE(configReport.has_deletion_time_sec());
 }

 TEST(StatsdStatsTest, TestInvalidConfigAdd) {
     StatsdStats stats;
     ConfigKey key(0, 12345);
     const int metricsCount = 10;
     const int conditionsCount = 20;
     const int matchersCount = 30;
     const int alertsCount = 10;
     stats.noteConfigReceived(key, metricsCount, conditionsCount, matchersCount, alertsCount, {},
                              false /*bad config*/);
     vector<uint8_t> output;
     stats.dumpStats(&output, false);

     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport = report.config_stats(0);
     // The invalid config should be put into icebox with a deletion time.
     EXPECT_TRUE(configReport.has_deletion_time_sec());
 }

 TEST(StatsdStatsTest, TestConfigRemove) {
     StatsdStats stats;
     ConfigKey key(0, 12345);
     const int metricsCount = 10;
     const int conditionsCount = 20;
     const int matchersCount = 30;
     const int alertsCount = 10;
     stats.noteConfigReceived(key, metricsCount, conditionsCount, matchersCount, alertsCount, {},
                              true);
     vector<uint8_t> output;
     stats.dumpStats(&output, false);
     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport = report.config_stats(0);
     EXPECT_FALSE(configReport.has_deletion_time_sec());

     stats.noteConfigRemoved(key);
     stats.dumpStats(&output, false);
     good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport2 = report.config_stats(0);
     EXPECT_TRUE(configReport2.has_deletion_time_sec());
 }

 TEST(StatsdStatsTest, TestSubStats) {
     StatsdStats stats;
     ConfigKey key(0, 12345);
     stats.noteConfigReceived(key, 2, 3, 4, 5, {std::make_pair(123, 456)}, true);

     stats.noteMatcherMatched(key, StringToId("matcher1"));
     stats.noteMatcherMatched(key, StringToId("matcher1"));
     stats.noteMatcherMatched(key, StringToId("matcher2"));

     stats.noteConditionDimensionSize(key, StringToId("condition1"), 250);
     stats.noteConditionDimensionSize(key, StringToId("condition1"), 240);

     stats.noteMetricDimensionSize(key, StringToId("metric1"), 201);
     stats.noteMetricDimensionSize(key, StringToId("metric1"), 202);

     stats.noteAnomalyDeclared(key, StringToId("alert1"));
     stats.noteAnomalyDeclared(key, StringToId("alert1"));
     stats.noteAnomalyDeclared(key, StringToId("alert2"));

     // broadcast-> 2
     stats.noteBroadcastSent(key);
     stats.noteBroadcastSent(key);

     // data drop -> 1
     stats.noteDataDropped(key, 123);

     // dump report -> 3
     stats.noteMetricsReportSent(key, 0);
     stats.noteMetricsReportSent(key, 0);
     stats.noteMetricsReportSent(key, 0);

     // activation_time_sec -> 2
     stats.noteActiveStatusChanged(key, true);
     stats.noteActiveStatusChanged(key, true);

     // deactivation_time_sec -> 1
     stats.noteActiveStatusChanged(key, false);

     vector<uint8_t> output;
     stats.dumpStats(&output, true);  // Dump and reset stats
     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport = report.config_stats(0);
     EXPECT_EQ(2, configReport.broadcast_sent_time_sec_size());
     EXPECT_EQ(1, configReport.data_drop_time_sec_size());
     EXPECT_EQ(1, configReport.data_drop_bytes_size());
     EXPECT_EQ(123, configReport.data_drop_bytes(0));
     EXPECT_EQ(3, configReport.dump_report_time_sec_size());
     EXPECT_EQ(3, configReport.dump_report_data_size_size());
     EXPECT_EQ(2, configReport.activation_time_sec_size());
     EXPECT_EQ(1, configReport.deactivation_time_sec_size());
     EXPECT_EQ(1, configReport.annotation_size());
     EXPECT_EQ(123, configReport.annotation(0).field_int64());
     EXPECT_EQ(456, configReport.annotation(0).field_int32());

     EXPECT_EQ(2, configReport.matcher_stats_size());
     // matcher1 is the first in the list
     if (configReport.matcher_stats(0).id() == StringToId("matcher1")) {
         EXPECT_EQ(2, configReport.matcher_stats(0).matched_times());
         EXPECT_EQ(1, configReport.matcher_stats(1).matched_times());
         EXPECT_EQ(StringToId("matcher2"), configReport.matcher_stats(1).id());
     } else {
         // matcher1 is the second in the list.
         EXPECT_EQ(1, configReport.matcher_stats(0).matched_times());
         EXPECT_EQ(StringToId("matcher2"), configReport.matcher_stats(0).id());

         EXPECT_EQ(2, configReport.matcher_stats(1).matched_times());
         EXPECT_EQ(StringToId("matcher1"), configReport.matcher_stats(1).id());
     }

     EXPECT_EQ(2, configReport.alert_stats_size());
     bool alert1first = configReport.alert_stats(0).id() == StringToId("alert1");
     EXPECT_EQ(StringToId("alert1"), configReport.alert_stats(alert1first ? 0 : 1).id());
     EXPECT_EQ(2, configReport.alert_stats(alert1first ? 0 : 1).alerted_times());
     EXPECT_EQ(StringToId("alert2"), configReport.alert_stats(alert1first ? 1 : 0).id());
     EXPECT_EQ(1, configReport.alert_stats(alert1first ? 1 : 0).alerted_times());

     EXPECT_EQ(1, configReport.condition_stats_size());
     EXPECT_EQ(StringToId("condition1"), configReport.condition_stats(0).id());
     EXPECT_EQ(250, configReport.condition_stats(0).max_tuple_counts());

     EXPECT_EQ(1, configReport.metric_stats_size());
     EXPECT_EQ(StringToId("metric1"), configReport.metric_stats(0).id());
     EXPECT_EQ(202, configReport.metric_stats(0).max_tuple_counts());

     // after resetting the stats, some new events come
     stats.noteMatcherMatched(key, StringToId("matcher99"));
     stats.noteConditionDimensionSize(key, StringToId("condition99"), 300);
     stats.noteMetricDimensionSize(key, StringToId("metric99tion99"), 270);
     stats.noteAnomalyDeclared(key, StringToId("alert99"));

     // now the config stats should only contain the stats about the new event.
     stats.dumpStats(&output, false);
     good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport2 = report.config_stats(0);
     EXPECT_EQ(1, configReport2.matcher_stats_size());
     EXPECT_EQ(StringToId("matcher99"), configReport2.matcher_stats(0).id());
     EXPECT_EQ(1, configReport2.matcher_stats(0).matched_times());

     EXPECT_EQ(1, configReport2.condition_stats_size());
     EXPECT_EQ(StringToId("condition99"), configReport2.condition_stats(0).id());
     EXPECT_EQ(300, configReport2.condition_stats(0).max_tuple_counts());

     EXPECT_EQ(1, configReport2.metric_stats_size());
     EXPECT_EQ(StringToId("metric99tion99"), configReport2.metric_stats(0).id());
     EXPECT_EQ(270, configReport2.metric_stats(0).max_tuple_counts());

     EXPECT_EQ(1, configReport2.alert_stats_size());
     EXPECT_EQ(StringToId("alert99"), configReport2.alert_stats(0).id());
     EXPECT_EQ(1, configReport2.alert_stats(0).alerted_times());
 }

 TEST(StatsdStatsTest, TestAtomLog) {
     StatsdStats stats;
     time_t now = time(nullptr);
     // old event, we get it from the stats buffer. should be ignored.
     stats.noteAtomLogged(android::util::SENSOR_STATE_CHANGED, 1000);

     stats.noteAtomLogged(android::util::SENSOR_STATE_CHANGED, now + 1);
     stats.noteAtomLogged(android::util::SENSOR_STATE_CHANGED, now + 2);
     stats.noteAtomLogged(android::util::APP_CRASH_OCCURRED, now + 3);
     // pulled event, should ignore
     stats.noteAtomLogged(android::util::WIFI_BYTES_TRANSFER, now + 4);

     vector<uint8_t> output;
     stats.dumpStats(&output, false);
     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);

     EXPECT_EQ(2, report.atom_stats_size());
     bool sensorAtomGood = false;
     bool dropboxAtomGood = false;

     for (const auto& atomStats : report.atom_stats()) {
         if (atomStats.tag() == android::util::SENSOR_STATE_CHANGED && atomStats.count() == 3) {
             sensorAtomGood = true;
         }
         if (atomStats.tag() == android::util::APP_CRASH_OCCURRED && atomStats.count() == 1) {
             dropboxAtomGood = true;
         }
     }

     EXPECT_TRUE(dropboxAtomGood);
     EXPECT_TRUE(sensorAtomGood);
 }

 TEST(StatsdStatsTest, TestPullAtomStats) {
     StatsdStats stats;

     stats.updateMinPullIntervalSec(android::util::DISK_SPACE, 3333L);
     stats.updateMinPullIntervalSec(android::util::DISK_SPACE, 2222L);
     stats.updateMinPullIntervalSec(android::util::DISK_SPACE, 4444L);

     stats.notePull(android::util::DISK_SPACE);
     stats.notePullTime(android::util::DISK_SPACE, 1111L);
     stats.notePullDelay(android::util::DISK_SPACE, 1111L);
     stats.notePull(android::util::DISK_SPACE);
     stats.notePullTime(android::util::DISK_SPACE, 3333L);
     stats.notePullDelay(android::util::DISK_SPACE, 3335L);
     stats.notePull(android::util::DISK_SPACE);
     stats.notePullFromCache(android::util::DISK_SPACE);
     stats.notePullerCallbackRegistrationChanged(android::util::DISK_SPACE, true);
     stats.notePullerCallbackRegistrationChanged(android::util::DISK_SPACE, false);
     stats.notePullerCallbackRegistrationChanged(android::util::DISK_SPACE, true);


     vector<uint8_t> output;
     stats.dumpStats(&output, false);
     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);

     EXPECT_EQ(1, report.pulled_atom_stats_size());

     EXPECT_EQ(android::util::DISK_SPACE, report.pulled_atom_stats(0).atom_id());
     EXPECT_EQ(3, report.pulled_atom_stats(0).total_pull());
     EXPECT_EQ(1, report.pulled_atom_stats(0).total_pull_from_cache());
     EXPECT_EQ(2222L, report.pulled_atom_stats(0).min_pull_interval_sec());
     EXPECT_EQ(2222L, report.pulled_atom_stats(0).average_pull_time_nanos());
     EXPECT_EQ(3333L, report.pulled_atom_stats(0).max_pull_time_nanos());
     EXPECT_EQ(2223L, report.pulled_atom_stats(0).average_pull_delay_nanos());
     EXPECT_EQ(3335L, report.pulled_atom_stats(0).max_pull_delay_nanos());
     EXPECT_EQ(2L, report.pulled_atom_stats(0).registered_count());
     EXPECT_EQ(1L, report.pulled_atom_stats(0).unregistered_count());
 }

 TEST(StatsdStatsTest, TestAtomMetricsStats) {
     StatsdStats stats;
     time_t now = time(nullptr);
     // old event, we get it from the stats buffer. should be ignored.
     stats.noteBucketDropped(1000L);

     stats.noteBucketBoundaryDelayNs(1000L, -1L);
     stats.noteBucketBoundaryDelayNs(1000L, -10L);
     stats.noteBucketBoundaryDelayNs(1000L, 2L);

     stats.noteBucketBoundaryDelayNs(1001L, 1L);

     vector<uint8_t> output;
     stats.dumpStats(&output, false);
     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);

     EXPECT_EQ(2, report.atom_metric_stats().size());

     auto atomStats = report.atom_metric_stats(0);
     EXPECT_EQ(1000L, atomStats.metric_id());
     EXPECT_EQ(1L, atomStats.bucket_dropped());
     EXPECT_EQ(-10L, atomStats.min_bucket_boundary_delay_ns());
     EXPECT_EQ(2L, atomStats.max_bucket_boundary_delay_ns());

     auto atomStats2 = report.atom_metric_stats(1);
     EXPECT_EQ(1001L, atomStats2.metric_id());
     EXPECT_EQ(0L, atomStats2.bucket_dropped());
     EXPECT_EQ(0L, atomStats2.min_bucket_boundary_delay_ns());
     EXPECT_EQ(1L, atomStats2.max_bucket_boundary_delay_ns());
 }

 TEST(StatsdStatsTest, TestAnomalyMonitor) {
     StatsdStats stats;
     stats.noteRegisteredAnomalyAlarmChanged();
     stats.noteRegisteredAnomalyAlarmChanged();

     vector<uint8_t> output;
     stats.dumpStats(&output, false);
     StatsdStatsReport report;
     bool good = report.ParseFromArray(&output[0], output.size());
     EXPECT_TRUE(good);

     EXPECT_EQ(2, report.anomaly_alarm_stats().alarms_registered());
 }

 TEST(StatsdStatsTest, TestTimestampThreshold) {
     StatsdStats stats;
     vector<int32_t> timestamps;
     for (int i = 0; i < StatsdStats::kMaxTimestampCount; i++) {
         timestamps.push_back(i);
     }
     ConfigKey key(0, 12345);
     stats.noteConfigReceived(key, 2, 3, 4, 5, {}, true);

     for (int i = 0; i < StatsdStats::kMaxTimestampCount; i++) {
         stats.noteDataDropped(key, timestamps[i]);
         stats.noteBroadcastSent(key, timestamps[i]);
         stats.noteMetricsReportSent(key, 0, timestamps[i]);
         stats.noteActiveStatusChanged(key, true, timestamps[i]);
         stats.noteActiveStatusChanged(key, false, timestamps[i]);
     }

     int32_t newTimestamp = 10000;

     // now it should trigger removing oldest timestamp
     stats.noteDataDropped(key, 123, 10000);
     stats.noteBroadcastSent(key, 10000);
     stats.noteMetricsReportSent(key, 0, 10000);
     stats.noteActiveStatusChanged(key, true, 10000);
     stats.noteActiveStatusChanged(key, false, 10000);

     EXPECT_TRUE(stats.mConfigStats.find(key) != stats.mConfigStats.end());
     const auto& configStats = stats.mConfigStats[key];

     size_t maxCount = StatsdStats::kMaxTimestampCount;
     EXPECT_EQ(maxCount, configStats->broadcast_sent_time_sec.size());
     EXPECT_EQ(maxCount, configStats->data_drop_time_sec.size());
     EXPECT_EQ(maxCount, configStats->dump_report_stats.size());
     EXPECT_EQ(maxCount, configStats->activation_time_sec.size());
     EXPECT_EQ(maxCount, configStats->deactivation_time_sec.size());

     // the oldest timestamp is the second timestamp in history
     EXPECT_EQ(1, configStats->broadcast_sent_time_sec.front());
     EXPECT_EQ(1, configStats->data_drop_bytes.front());
     EXPECT_EQ(1, configStats->dump_report_stats.front().first);
     EXPECT_EQ(1, configStats->activation_time_sec.front());
     EXPECT_EQ(1, configStats->deactivation_time_sec.front());

     // the last timestamp is the newest timestamp.
     EXPECT_EQ(newTimestamp, configStats->broadcast_sent_time_sec.back());
     EXPECT_EQ(newTimestamp, configStats->data_drop_time_sec.back());
     EXPECT_EQ(123, configStats->data_drop_bytes.back());
     EXPECT_EQ(newTimestamp, configStats->dump_report_stats.back().first);
     EXPECT_EQ(newTimestamp, configStats->activation_time_sec.back());
     EXPECT_EQ(newTimestamp, configStats->deactivation_time_sec.back());
 }

 TEST(StatsdStatsTest, TestSystemServerCrash) {
     StatsdStats stats;
     vector<int32_t> timestamps;
     for (int i = 0; i < StatsdStats::kMaxSystemServerRestarts; i++) {
         timestamps.push_back(i);
         stats.noteSystemServerRestart(timestamps[i]);
     }
     vector<uint8_t> output;
     stats.dumpStats(&output, false);
     StatsdStatsReport report;
     EXPECT_TRUE(report.ParseFromArray(&output[0], output.size()));
     const int maxCount = StatsdStats::kMaxSystemServerRestarts;
     EXPECT_EQ(maxCount, (int)report.system_restart_sec_size());

     stats.noteSystemServerRestart(StatsdStats::kMaxSystemServerRestarts + 1);
     output.clear();
     stats.dumpStats(&output, false);
     EXPECT_TRUE(report.ParseFromArray(&output[0], output.size()));
     EXPECT_EQ(maxCount, (int)report.system_restart_sec_size());
     EXPECT_EQ(StatsdStats::kMaxSystemServerRestarts + 1, report.system_restart_sec(maxCount - 1));
 }

 }  // namespace statsd
 }  // namespace os
 }  // namespace android
 #else
 GTEST_LOG_(INFO) << "This test does nothing.\n";
 #endif
	// Copyright (C) 2017 The Android Open Source Project
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	#include "src/guardrail/StatsdStats.h"
	#include "statslog.h"
	#include "tests/statsd_test_util.h"

	#include <gtest/gtest.h>
	#include <vector>

	#ifdef __ANDROID__

	namespace android {
	namespace os {
	namespace statsd {

	using std::vector;

	TEST(StatsdStatsTest, TestValidConfigAdd) {
	StatsdStats stats;
	ConfigKey key(0, 12345);
	const int metricsCount = 10;
	const int conditionsCount = 20;
	const int matchersCount = 30;
	const int alertsCount = 10;
	stats.noteConfigReceived(key, metricsCount, conditionsCount, matchersCount, alertsCount, {},
	true /valid config/);
	vector<uint8_t> output;
	stats.dumpStats(&output, false /reset stats/);

	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);
	EXPECT_EQ(1, report.config_stats_size());
	const auto& configReport = report.config_stats(0);
	EXPECT_EQ(0, configReport.uid());
	EXPECT_EQ(12345, configReport.id());
	EXPECT_EQ(metricsCount, configReport.metric_count());
	EXPECT_EQ(conditionsCount, configReport.condition_count());
	EXPECT_EQ(matchersCount, configReport.matcher_count());
	EXPECT_EQ(alertsCount, configReport.alert_count());
	EXPECT_EQ(true, configReport.is_valid());
	EXPECT_FALSE(configReport.has_deletion_time_sec());
	}

	TEST(StatsdStatsTest, TestInvalidConfigAdd) {
	StatsdStats stats;
	ConfigKey key(0, 12345);
	const int metricsCount = 10;
	const int conditionsCount = 20;
	const int matchersCount = 30;
	const int alertsCount = 10;
	stats.noteConfigReceived(key, metricsCount, conditionsCount, matchersCount, alertsCount, {},
	false /bad config/);
	vector<uint8_t> output;
	stats.dumpStats(&output, false);

	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);
	EXPECT_EQ(1, report.config_stats_size());
	const auto& configReport = report.config_stats(0);
	// The invalid config should be put into icebox with a deletion time.
	EXPECT_TRUE(configReport.has_deletion_time_sec());
	}

	TEST(StatsdStatsTest, TestConfigRemove) {
	StatsdStats stats;
	ConfigKey key(0, 12345);
	const int metricsCount = 10;
	const int conditionsCount = 20;
	const int matchersCount = 30;
	const int alertsCount = 10;
	stats.noteConfigReceived(key, metricsCount, conditionsCount, matchersCount, alertsCount, {},
	true);
	vector<uint8_t> output;
	stats.dumpStats(&output, false);
	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);
	EXPECT_EQ(1, report.config_stats_size());
	const auto& configReport = report.config_stats(0);
	EXPECT_FALSE(configReport.has_deletion_time_sec());

	stats.noteConfigRemoved(key);
	stats.dumpStats(&output, false);
	good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);
	EXPECT_EQ(1, report.config_stats_size());
	const auto& configReport2 = report.config_stats(0);
	EXPECT_TRUE(configReport2.has_deletion_time_sec());
	}

	TEST(StatsdStatsTest, TestSubStats) {
	StatsdStats stats;
	ConfigKey key(0, 12345);
	stats.noteConfigReceived(key, 2, 3, 4, 5, {std::make_pair(123, 456)}, true);

	stats.noteMatcherMatched(key, StringToId("matcher1"));
	stats.noteMatcherMatched(key, StringToId("matcher1"));
	stats.noteMatcherMatched(key, StringToId("matcher2"));

	stats.noteConditionDimensionSize(key, StringToId("condition1"), 250);
	stats.noteConditionDimensionSize(key, StringToId("condition1"), 240);

	stats.noteMetricDimensionSize(key, StringToId("metric1"), 201);
	stats.noteMetricDimensionSize(key, StringToId("metric1"), 202);

	stats.noteAnomalyDeclared(key, StringToId("alert1"));
	stats.noteAnomalyDeclared(key, StringToId("alert1"));
	stats.noteAnomalyDeclared(key, StringToId("alert2"));

	// broadcast-> 2
	stats.noteBroadcastSent(key);
	stats.noteBroadcastSent(key);

	// data drop -> 1
	stats.noteDataDropped(key, 123);

	// dump report -> 3
	stats.noteMetricsReportSent(key, 0);
	stats.noteMetricsReportSent(key, 0);
	stats.noteMetricsReportSent(key, 0);

	// activation_time_sec -> 2
	stats.noteActiveStatusChanged(key, true);
	stats.noteActiveStatusChanged(key, true);

	// deactivation_time_sec -> 1
	stats.noteActiveStatusChanged(key, false);

	vector<uint8_t> output;
	stats.dumpStats(&output, true); // Dump and reset stats
	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);
	EXPECT_EQ(1, report.config_stats_size());
	const auto& configReport = report.config_stats(0);
	EXPECT_EQ(2, configReport.broadcast_sent_time_sec_size());
	EXPECT_EQ(1, configReport.data_drop_time_sec_size());
	EXPECT_EQ(1, configReport.data_drop_bytes_size());
	EXPECT_EQ(123, configReport.data_drop_bytes(0));
	EXPECT_EQ(3, configReport.dump_report_time_sec_size());
	EXPECT_EQ(3, configReport.dump_report_data_size_size());
	EXPECT_EQ(2, configReport.activation_time_sec_size());
	EXPECT_EQ(1, configReport.deactivation_time_sec_size());
	EXPECT_EQ(1, configReport.annotation_size());
	EXPECT_EQ(123, configReport.annotation(0).field_int64());
	EXPECT_EQ(456, configReport.annotation(0).field_int32());

	EXPECT_EQ(2, configReport.matcher_stats_size());
	// matcher1 is the first in the list
	if (configReport.matcher_stats(0).id() == StringToId("matcher1")) {
	EXPECT_EQ(2, configReport.matcher_stats(0).matched_times());
	EXPECT_EQ(1, configReport.matcher_stats(1).matched_times());
	EXPECT_EQ(StringToId("matcher2"), configReport.matcher_stats(1).id());
	} else {
	// matcher1 is the second in the list.
	EXPECT_EQ(1, configReport.matcher_stats(0).matched_times());
	EXPECT_EQ(StringToId("matcher2"), configReport.matcher_stats(0).id());

	EXPECT_EQ(2, configReport.matcher_stats(1).matched_times());
	EXPECT_EQ(StringToId("matcher1"), configReport.matcher_stats(1).id());
	}

	EXPECT_EQ(2, configReport.alert_stats_size());
	bool alert1first = configReport.alert_stats(0).id() == StringToId("alert1");
	EXPECT_EQ(StringToId("alert1"), configReport.alert_stats(alert1first ? 0 : 1).id());
	EXPECT_EQ(2, configReport.alert_stats(alert1first ? 0 : 1).alerted_times());
	EXPECT_EQ(StringToId("alert2"), configReport.alert_stats(alert1first ? 1 : 0).id());
	EXPECT_EQ(1, configReport.alert_stats(alert1first ? 1 : 0).alerted_times());

	EXPECT_EQ(1, configReport.condition_stats_size());
	EXPECT_EQ(StringToId("condition1"), configReport.condition_stats(0).id());
	EXPECT_EQ(250, configReport.condition_stats(0).max_tuple_counts());

	EXPECT_EQ(1, configReport.metric_stats_size());
	EXPECT_EQ(StringToId("metric1"), configReport.metric_stats(0).id());
	EXPECT_EQ(202, configReport.metric_stats(0).max_tuple_counts());

	// after resetting the stats, some new events come
	stats.noteMatcherMatched(key, StringToId("matcher99"));
	stats.noteConditionDimensionSize(key, StringToId("condition99"), 300);
	stats.noteMetricDimensionSize(key, StringToId("metric99tion99"), 270);
	stats.noteAnomalyDeclared(key, StringToId("alert99"));

	// now the config stats should only contain the stats about the new event.
	stats.dumpStats(&output, false);
	good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);
	EXPECT_EQ(1, report.config_stats_size());
	const auto& configReport2 = report.config_stats(0);
	EXPECT_EQ(1, configReport2.matcher_stats_size());
	EXPECT_EQ(StringToId("matcher99"), configReport2.matcher_stats(0).id());
	EXPECT_EQ(1, configReport2.matcher_stats(0).matched_times());

	EXPECT_EQ(1, configReport2.condition_stats_size());
	EXPECT_EQ(StringToId("condition99"), configReport2.condition_stats(0).id());
	EXPECT_EQ(300, configReport2.condition_stats(0).max_tuple_counts());

	EXPECT_EQ(1, configReport2.metric_stats_size());
	EXPECT_EQ(StringToId("metric99tion99"), configReport2.metric_stats(0).id());
	EXPECT_EQ(270, configReport2.metric_stats(0).max_tuple_counts());

	EXPECT_EQ(1, configReport2.alert_stats_size());
	EXPECT_EQ(StringToId("alert99"), configReport2.alert_stats(0).id());
	EXPECT_EQ(1, configReport2.alert_stats(0).alerted_times());
	}

	TEST(StatsdStatsTest, TestAtomLog) {
	StatsdStats stats;
	time_t now = time(nullptr);
	// old event, we get it from the stats buffer. should be ignored.
	stats.noteAtomLogged(android::util::SENSOR_STATE_CHANGED, 1000);

	stats.noteAtomLogged(android::util::SENSOR_STATE_CHANGED, now + 1);
	stats.noteAtomLogged(android::util::SENSOR_STATE_CHANGED, now + 2);
	stats.noteAtomLogged(android::util::APP_CRASH_OCCURRED, now + 3);
	// pulled event, should ignore
	stats.noteAtomLogged(android::util::WIFI_BYTES_TRANSFER, now + 4);

	vector<uint8_t> output;
	stats.dumpStats(&output, false);
	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);

	EXPECT_EQ(2, report.atom_stats_size());
	bool sensorAtomGood = false;
	bool dropboxAtomGood = false;

	for (const auto& atomStats : report.atom_stats()) {
	if (atomStats.tag() == android::util::SENSOR_STATE_CHANGED && atomStats.count() == 3) {
	sensorAtomGood = true;
	}
	if (atomStats.tag() == android::util::APP_CRASH_OCCURRED && atomStats.count() == 1) {
	dropboxAtomGood = true;
	}
	}

	EXPECT_TRUE(dropboxAtomGood);
	EXPECT_TRUE(sensorAtomGood);
	}

	TEST(StatsdStatsTest, TestPullAtomStats) {
	StatsdStats stats;

	stats.updateMinPullIntervalSec(android::util::DISK_SPACE, 3333L);
	stats.updateMinPullIntervalSec(android::util::DISK_SPACE, 2222L);
	stats.updateMinPullIntervalSec(android::util::DISK_SPACE, 4444L);

	stats.notePull(android::util::DISK_SPACE);
	stats.notePullTime(android::util::DISK_SPACE, 1111L);
	stats.notePullDelay(android::util::DISK_SPACE, 1111L);
	stats.notePull(android::util::DISK_SPACE);
	stats.notePullTime(android::util::DISK_SPACE, 3333L);
	stats.notePullDelay(android::util::DISK_SPACE, 3335L);
	stats.notePull(android::util::DISK_SPACE);
	stats.notePullFromCache(android::util::DISK_SPACE);
	stats.notePullerCallbackRegistrationChanged(android::util::DISK_SPACE, true);
	stats.notePullerCallbackRegistrationChanged(android::util::DISK_SPACE, false);
	stats.notePullerCallbackRegistrationChanged(android::util::DISK_SPACE, true);


	vector<uint8_t> output;
	stats.dumpStats(&output, false);
	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);

	EXPECT_EQ(1, report.pulled_atom_stats_size());

	EXPECT_EQ(android::util::DISK_SPACE, report.pulled_atom_stats(0).atom_id());
	EXPECT_EQ(3, report.pulled_atom_stats(0).total_pull());
	EXPECT_EQ(1, report.pulled_atom_stats(0).total_pull_from_cache());
	EXPECT_EQ(2222L, report.pulled_atom_stats(0).min_pull_interval_sec());
	EXPECT_EQ(2222L, report.pulled_atom_stats(0).average_pull_time_nanos());
	EXPECT_EQ(3333L, report.pulled_atom_stats(0).max_pull_time_nanos());
	EXPECT_EQ(2223L, report.pulled_atom_stats(0).average_pull_delay_nanos());
	EXPECT_EQ(3335L, report.pulled_atom_stats(0).max_pull_delay_nanos());
	EXPECT_EQ(2L, report.pulled_atom_stats(0).registered_count());
	EXPECT_EQ(1L, report.pulled_atom_stats(0).unregistered_count());
	}

	TEST(StatsdStatsTest, TestAtomMetricsStats) {
	StatsdStats stats;
	time_t now = time(nullptr);
	// old event, we get it from the stats buffer. should be ignored.
	stats.noteBucketDropped(1000L);

	stats.noteBucketBoundaryDelayNs(1000L, -1L);
	stats.noteBucketBoundaryDelayNs(1000L, -10L);
	stats.noteBucketBoundaryDelayNs(1000L, 2L);

	stats.noteBucketBoundaryDelayNs(1001L, 1L);

	vector<uint8_t> output;
	stats.dumpStats(&output, false);
	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);

	EXPECT_EQ(2, report.atom_metric_stats().size());

	auto atomStats = report.atom_metric_stats(0);
	EXPECT_EQ(1000L, atomStats.metric_id());
	EXPECT_EQ(1L, atomStats.bucket_dropped());
	EXPECT_EQ(-10L, atomStats.min_bucket_boundary_delay_ns());
	EXPECT_EQ(2L, atomStats.max_bucket_boundary_delay_ns());

	auto atomStats2 = report.atom_metric_stats(1);
	EXPECT_EQ(1001L, atomStats2.metric_id());
	EXPECT_EQ(0L, atomStats2.bucket_dropped());
	EXPECT_EQ(0L, atomStats2.min_bucket_boundary_delay_ns());
	EXPECT_EQ(1L, atomStats2.max_bucket_boundary_delay_ns());
	}

	TEST(StatsdStatsTest, TestAnomalyMonitor) {
	StatsdStats stats;
	stats.noteRegisteredAnomalyAlarmChanged();
	stats.noteRegisteredAnomalyAlarmChanged();

	vector<uint8_t> output;
	stats.dumpStats(&output, false);
	StatsdStatsReport report;
	bool good = report.ParseFromArray(&output[0], output.size());
	EXPECT_TRUE(good);

	EXPECT_EQ(2, report.anomaly_alarm_stats().alarms_registered());
	}

	TEST(StatsdStatsTest, TestTimestampThreshold) {
	StatsdStats stats;
	vector<int32_t> timestamps;
	for (int i = 0; i < StatsdStats::kMaxTimestampCount; i++) {
	timestamps.push_back(i);
	}
	ConfigKey key(0, 12345);
	stats.noteConfigReceived(key, 2, 3, 4, 5, {}, true);

	for (int i = 0; i < StatsdStats::kMaxTimestampCount; i++) {
	stats.noteDataDropped(key, timestamps[i]);
	stats.noteBroadcastSent(key, timestamps[i]);
	stats.noteMetricsReportSent(key, 0, timestamps[i]);
	stats.noteActiveStatusChanged(key, true, timestamps[i]);
	stats.noteActiveStatusChanged(key, false, timestamps[i]);
	}

	int32_t newTimestamp = 10000;

	// now it should trigger removing oldest timestamp
	stats.noteDataDropped(key, 123, 10000);
	stats.noteBroadcastSent(key, 10000);
	stats.noteMetricsReportSent(key, 0, 10000);
	stats.noteActiveStatusChanged(key, true, 10000);
	stats.noteActiveStatusChanged(key, false, 10000);

	EXPECT_TRUE(stats.mConfigStats.find(key) != stats.mConfigStats.end());
	const auto& configStats = stats.mConfigStats[key];

	size_t maxCount = StatsdStats::kMaxTimestampCount;
	EXPECT_EQ(maxCount, configStats->broadcast_sent_time_sec.size());
	EXPECT_EQ(maxCount, configStats->data_drop_time_sec.size());
	EXPECT_EQ(maxCount, configStats->dump_report_stats.size());
	EXPECT_EQ(maxCount, configStats->activation_time_sec.size());
	EXPECT_EQ(maxCount, configStats->deactivation_time_sec.size());

	// the oldest timestamp is the second timestamp in history
	EXPECT_EQ(1, configStats->broadcast_sent_time_sec.front());
	EXPECT_EQ(1, configStats->data_drop_bytes.front());
	EXPECT_EQ(1, configStats->dump_report_stats.front().first);
	EXPECT_EQ(1, configStats->activation_time_sec.front());
	EXPECT_EQ(1, configStats->deactivation_time_sec.front());

	// the last timestamp is the newest timestamp.
	EXPECT_EQ(newTimestamp, configStats->broadcast_sent_time_sec.back());
	EXPECT_EQ(newTimestamp, configStats->data_drop_time_sec.back());
	EXPECT_EQ(123, configStats->data_drop_bytes.back());
	EXPECT_EQ(newTimestamp, configStats->dump_report_stats.back().first);
	EXPECT_EQ(newTimestamp, configStats->activation_time_sec.back());
	EXPECT_EQ(newTimestamp, configStats->deactivation_time_sec.back());
	}

	TEST(StatsdStatsTest, TestSystemServerCrash) {
	StatsdStats stats;
	vector<int32_t> timestamps;
	for (int i = 0; i < StatsdStats::kMaxSystemServerRestarts; i++) {
	timestamps.push_back(i);
	stats.noteSystemServerRestart(timestamps[i]);
	}
	vector<uint8_t> output;
	stats.dumpStats(&output, false);
	StatsdStatsReport report;
	EXPECT_TRUE(report.ParseFromArray(&output[0], output.size()));
	const int maxCount = StatsdStats::kMaxSystemServerRestarts;
	EXPECT_EQ(maxCount, (int)report.system_restart_sec_size());

	stats.noteSystemServerRestart(StatsdStats::kMaxSystemServerRestarts + 1);
	output.clear();
	stats.dumpStats(&output, false);
	EXPECT_TRUE(report.ParseFromArray(&output[0], output.size()));
	EXPECT_EQ(maxCount, (int)report.system_restart_sec_size());
	EXPECT_EQ(StatsdStats::kMaxSystemServerRestarts + 1, report.system_restart_sec(maxCount - 1));
	}

	} // namespace statsd
	} // namespace os
	} // namespace android
	#else
	GTEST_LOG_(INFO) << "This test does nothing.\n";
	#endif