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// 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 "StatsLogProcessor.h"
#include "config/ConfigKey.h"
#include "frameworks/base/cmds/statsd/src/statsd_config.pb.h"
#include "guardrail/StatsdStats.h"
#include "logd/LogEvent.h"
#include "packages/UidMap.h"
#include "statslog.h"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <stdio.h>
using namespace android;
using namespace testing;
namespace android {
namespace os {
namespace statsd {
#ifdef __ANDROID__
/**
* Mock MetricsManager (ByteSize() is called).
*/
class MockMetricsManager : public MetricsManager {
public:
MockMetricsManager() : MetricsManager(ConfigKey(1, "key"), StatsdConfig()) {
}
MOCK_METHOD0(byteSize, size_t());
MOCK_METHOD0(onDumpReport, std::vector<std::unique_ptr<std::vector<uint8_t>>>());
};
TEST(StatsLogProcessorTest, TestRateLimitByteSize) {
sp<UidMap> m = new UidMap();
sp<AnomalyMonitor> anomalyMonitor;
// Construct the processor with a dummy sendBroadcast function that does nothing.
StatsLogProcessor p(m, anomalyMonitor, [](const ConfigKey& key) {});
MockMetricsManager mockMetricsManager;
ConfigKey key(100, "key");
// Expect only the first flush to trigger a check for byte size since the last two are
// rate-limited.
EXPECT_CALL(mockMetricsManager, byteSize()).Times(1);
p.flushIfNecessary(99, key, mockMetricsManager);
p.flushIfNecessary(100, key, mockMetricsManager);
p.flushIfNecessary(101, key, mockMetricsManager);
}
TEST(StatsLogProcessorTest, TestRateLimitBroadcast) {
sp<UidMap> m = new UidMap();
sp<AnomalyMonitor> anomalyMonitor;
int broadcastCount = 0;
StatsLogProcessor p(m, anomalyMonitor,
[&broadcastCount](const ConfigKey& key) { broadcastCount++; });
MockMetricsManager mockMetricsManager;
ConfigKey key(100, "key");
EXPECT_CALL(mockMetricsManager, byteSize())
.Times(2)
.WillRepeatedly(Return(int(StatsdStats::kMaxMetricsBytesPerConfig * .95)));
// Expect only one broadcast despite always returning a size that should trigger broadcast.
p.flushIfNecessary(1, key, mockMetricsManager);
EXPECT_EQ(1, broadcastCount);
// This next call to flush should not trigger a broadcast.
p.mLastByteSizeTimes.clear(); // Force another check for byte size.
p.flushIfNecessary(2, key, mockMetricsManager);
EXPECT_EQ(1, broadcastCount);
}
TEST(StatsLogProcessorTest, TestDropWhenByteSizeTooLarge) {
sp<UidMap> m = new UidMap();
sp<AnomalyMonitor> anomalyMonitor;
int broadcastCount = 0;
StatsLogProcessor p(m, anomalyMonitor,
[&broadcastCount](const ConfigKey& key) { broadcastCount++; });
MockMetricsManager mockMetricsManager;
ConfigKey key(100, "key");
EXPECT_CALL(mockMetricsManager, byteSize())
.Times(1)
.WillRepeatedly(Return(int(StatsdStats::kMaxMetricsBytesPerConfig * 1.2)));
EXPECT_CALL(mockMetricsManager, onDumpReport()).Times(1);
// Expect to call the onDumpReport and skip the broadcast.
p.flushIfNecessary(1, key, mockMetricsManager);
EXPECT_EQ(0, broadcastCount);
}
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
} // namespace statsd
} // namespace os
} // namespace android
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