| /* |
| * 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. |
| */ |
| package android.metrics; |
| |
| import android.metrics.MetricsReader.Event; |
| import android.support.test.filters.LargeTest; |
| |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| |
| import junit.framework.TestCase; |
| |
| import java.util.Collection; |
| |
| @LargeTest |
| public class MetricsReaderTest extends TestCase { |
| private static final int FULL_N = 10; |
| private static final int CHECKPOINTED_N = 4; |
| private static final int PID = 1; |
| private static final int UID = 2; |
| |
| class FakeLogReader extends MetricsReader.LogReader { |
| MetricsReader.Event[] mEvents; |
| private long mHorizonMs; |
| |
| public FakeLogReader() { |
| mEvents = new MetricsReader.Event[FULL_N]; |
| for (int i = 0; i < FULL_N; i++) { |
| mEvents[i] = new MetricsReader.Event( |
| 1000L + i, |
| PID, |
| UID, |
| new LogMaker(i).serialize()); |
| } |
| } |
| |
| @Override |
| public void readEvents(int[] tags, long horizonMs, Collection<Event> events) { |
| mHorizonMs = horizonMs; |
| for (int i = 0; i < mEvents.length; i++) { |
| events.add(mEvents[i]); |
| } |
| } |
| |
| @Override |
| public void writeCheckpoint(int tag) { |
| int i = FULL_N - CHECKPOINTED_N - 1; |
| mEvents[i].setData(new LogMaker(MetricsEvent.METRICS_CHECKPOINT) |
| .setSubtype(tag) |
| .serialize()); |
| } |
| } |
| FakeLogReader mLogReader; |
| MetricsReader mReader = new MetricsReader(); |
| |
| public void setUp() { |
| mLogReader = new FakeLogReader(); |
| mReader.setLogReader(mLogReader); |
| } |
| |
| public void testNonBlockingRead() { |
| mReader.read(0); |
| assertEquals(0, mLogReader.mHorizonMs); |
| for (int i = 0; i < FULL_N; i++) { |
| assertTrue(mReader.hasNext()); |
| LogMaker log = mReader.next(); |
| assertEquals(i, log.getCategory()); |
| } |
| } |
| |
| public void testReset() { |
| mReader.read(0); |
| while (mReader.hasNext()) { |
| mReader.next(); |
| } |
| mReader.reset(); |
| for (int i = 0; i < FULL_N; i++) { |
| assertTrue(mReader.hasNext()); |
| LogMaker log = mReader.next(); |
| assertEquals(i, log.getCategory()); |
| } |
| } |
| |
| public void testPidUid() { |
| mReader.read(0); |
| LogMaker log = mReader.next(); |
| assertEquals(PID, log.getProcessId()); |
| assertEquals(UID, log.getUid()); |
| } |
| |
| public void testBlockingRead_readResetsHorizon() { |
| mReader.read(1000); |
| assertEquals(1000, mLogReader.mHorizonMs); |
| } |
| |
| public void testWriteCheckpoint() { |
| mReader.checkpoint(); |
| mReader.read(0); |
| int m = FULL_N - CHECKPOINTED_N; |
| for (int i = m; i < FULL_N; i++) { |
| assertTrue(mReader.hasNext()); |
| LogMaker log = mReader.next(); |
| assertEquals(i, log.getCategory()); |
| } |
| } |
| } |