content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.beam.runners.samza.runtime;
  
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyLong;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  import org.apache.beam.runners.core.TimerInternals;
  import org.apache.samza.operators.Scheduler;
  import org.joda.time.Instant;
  import org.junit.Before;
  import org.junit.Test;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  
  public class PortableBundleManagerTest {
  
    @Mock BundleManager.BundleProgressListener<String> bundleProgressListener;
    @Mock Scheduler<KeyedTimerData<Void>> bundleTimerScheduler;
    @Mock OpEmitter<String> emitter;
  
    PortableBundleManager<String> portableBundleManager;
  
    private static final String TIMER_ID = "timerId";
  
    private static final long MAX_BUNDLE_TIME_MS = 100000;
  
    @Before
    public void setup() {
      MockitoAnnotations.initMocks(this);
    }
  
    @Test
    public void test() {
      portableBundleManager =
          new PortableBundleManager<>(
              bundleProgressListener, 1, MAX_BUNDLE_TIME_MS, bundleTimerScheduler, TIMER_ID);
      portableBundleManager.tryStartBundle();
  
      verify(bundleProgressListener, times(1)).onBundleStarted();
    }
  
    @Test
    public void testWhen() {
      portableBundleManager =
          new PortableBundleManager<>(
              bundleProgressListener, 4, MAX_BUNDLE_TIME_MS, bundleTimerScheduler, TIMER_ID);
      portableBundleManager.tryStartBundle();
      portableBundleManager.tryStartBundle();
  
      verify(bundleProgressListener, times(1)).onBundleStarted();
    }
  
    @Test
    public void testWhenElementCountNotReachedTHenBundleDoesntFinish() {
      portableBundleManager =
          new PortableBundleManager<>(
              bundleProgressListener, 4, MAX_BUNDLE_TIME_MS, bundleTimerScheduler, TIMER_ID);
      portableBundleManager.tryStartBundle();
      portableBundleManager.tryStartBundle();
      portableBundleManager.tryFinishBundle(emitter);
  
      verify(bundleProgressListener, times(1)).onBundleStarted();
      verify(bundleProgressListener, times(0)).onBundleFinished(any());
    }
  
    @Test
    public void testWhenElementCountReachedThenFinishBundle() {
      portableBundleManager =
          new PortableBundleManager<>(
              bundleProgressListener, 4, MAX_BUNDLE_TIME_MS, bundleTimerScheduler, TIMER_ID);
      portableBundleManager.tryStartBundle();
      portableBundleManager.tryStartBundle();
      portableBundleManager.tryStartBundle();
      portableBundleManager.tryStartBundle();
      portableBundleManager.tryFinishBundle(emitter);
  
      verify(bundleProgressListener, times(1)).onBundleStarted();
      verify(bundleProgressListener, times(1)).onBundleFinished(any());
    }
  
    @Test
    public void testWhenBundleTimeReachedThenFinishBundle() throws Exception {
      portableBundleManager =
          new PortableBundleManager<>(bundleProgressListener, 4, 1, bundleTimerScheduler, TIMER_ID);
      portableBundleManager.tryStartBundle();
      Thread.sleep(2);
      portableBundleManager.tryFinishBundle(emitter);
  
      verify(bundleProgressListener, times(1)).onBundleStarted();
      verify(bundleProgressListener, times(1)).onBundleFinished(any());
    }
  
    @Test
    public void testWhenSignalFailureThenResetBundle() throws Exception {
      portableBundleManager =
          new PortableBundleManager<>(bundleProgressListener, 4, 1, bundleTimerScheduler, TIMER_ID);
      portableBundleManager.tryStartBundle();
      portableBundleManager.signalFailure(new Exception());
      portableBundleManager.tryStartBundle();
  
      verify(bundleProgressListener, times(2)).onBundleStarted();
    }
  
    @Test
    public void testProcessWatermarkWhenBundleNotStarted() {
      Instant watermark = new Instant();
      portableBundleManager =
          new PortableBundleManager<>(bundleProgressListener, 4, 1, bundleTimerScheduler, TIMER_ID);
      portableBundleManager.processWatermark(watermark, emitter);
      verify(bundleProgressListener, times(1)).onWatermark(eq(watermark), eq(emitter));
    }
  
    @Test
    public void testQueueWatermarkWhenBundleStarted() {
      Instant watermark = new Instant();
      portableBundleManager =
          new PortableBundleManager<>(bundleProgressListener, 1, 1, bundleTimerScheduler, TIMER_ID);
  
      portableBundleManager.tryStartBundle();
      portableBundleManager.processWatermark(watermark, emitter);
      verify(bundleProgressListener, times(0)).onWatermark(eq(watermark), eq(emitter));
  
      portableBundleManager.tryFinishBundle(emitter);
      verify(bundleProgressListener, times(1)).onWatermark(eq(watermark), eq(emitter));
    }
  
    @Test
    public void testProcessTimerTriesFinishBundle() {
      portableBundleManager =
          new PortableBundleManager<>(bundleProgressListener, 1, 1, bundleTimerScheduler, TIMER_ID);
  
      portableBundleManager.tryStartBundle();
      KeyedTimerData<Void> keyedTimerData = mock(KeyedTimerData.class);
      TimerInternals.TimerData timerData = mock(TimerInternals.TimerData.class);
      when(keyedTimerData.getTimerData()).thenReturn(timerData);
      when(timerData.getTimerId()).thenReturn(TIMER_ID);
  
      portableBundleManager.processTimer(keyedTimerData, emitter);
      verify(bundleProgressListener, times(1)).onBundleFinished(any());
      verify(bundleTimerScheduler).schedule(any(KeyedTimerData.class), anyLong());
    }
  
    @Test
    public void testDifferentTimerIdIsIgnored() {
      portableBundleManager =
          new PortableBundleManager<>(bundleProgressListener, 1, 1, bundleTimerScheduler, TIMER_ID);
  
      portableBundleManager.tryStartBundle();
      KeyedTimerData<Void> keyedTimerData = mock(KeyedTimerData.class);
      TimerInternals.TimerData timerData = mock(TimerInternals.TimerData.class);
      when(keyedTimerData.getTimerData()).thenReturn(timerData);
      when(timerData.getTimerId()).thenReturn("NOT_TIMER_ID");
  
      portableBundleManager.processTimer(keyedTimerData, emitter);
      verify(bundleProgressListener, times(0)).onBundleFinished(any());
    }
  }
  