tso-server/src/test/java/org/apache/omid/tso/TestReplyProcessor.java - phoenix-omid - Git at Google

 /*
  * 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.omid.tso;

 import org.apache.commons.pool2.ObjectPool;
 import org.apache.omid.metrics.MetricsRegistry;
 import org.apache.omid.metrics.NullMetricsProvider;
 import org.apache.omid.tso.ReplyProcessorImpl.ReplyBatchEvent;
 import org.jboss.netty.channel.Channel;
 import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.testng.annotations.AfterMethod;
 import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;

 import com.lmax.disruptor.BlockingWaitStrategy;

 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertFalse;
 import static org.testng.Assert.assertTrue;
 import static org.testng.Assert.fail;

 public class TestReplyProcessor {

     private static final Logger LOG = LoggerFactory.getLogger(TestReplyProcessor.class);

     private static final long ANY_DISRUPTOR_SEQUENCE = 1234L;

     public static final int BATCH_POOL_SIZE = 3;

     private static final long FIRST_ST = 0L;
     private static final long FIRST_CT = 1L;
     private static final long SECOND_ST = 2L;
     private static final long SECOND_CT = 3L;
     private static final long THIRD_ST = 4L;
     private static final long THIRD_CT = 5L;
     private static final long FOURTH_ST = 6L;
     private static final long FOURTH_CT = 7L;
     private static final long FIFTH_ST = 8L;
     private static final long FIFTH_CT = 9L;
     private static final long SIXTH_ST = 10L;

     @Mock
     private Panicker panicker;

     @Mock
     private MonitoringContextImpl monCtx;

     private MetricsRegistry metrics;

     private ObjectPool<Batch> batchPool;

     // Component under test
     private ReplyProcessorImpl replyProcessor;

     @BeforeMethod(alwaysRun = true, timeOut = 30_000)
     public void initMocksAndComponents() throws Exception {

         MockitoAnnotations.initMocks(this);

         TSOServerConfig tsoConfig = new TSOServerConfig();
         tsoConfig.setNumConcurrentCTWriters(BATCH_POOL_SIZE);

         // Configure null metrics provider
         metrics = new NullMetricsProvider();

         batchPool = spy(new BatchPoolModule(tsoConfig).getBatchPool());

         replyProcessor = spy(new ReplyProcessorImpl(new BlockingWaitStrategy(), metrics, panicker, batchPool));

     }

     @AfterMethod
     void afterMethod() {
     }

     @Test(timeOut = 10_000)
     public void testBadFormedPackageThrowsException() throws Exception {

         // We need an instance throwing exceptions for this test
         replyProcessor = spy(new ReplyProcessorImpl(new BlockingWaitStrategy(), metrics, new RuntimeExceptionPanicker(), batchPool));

         // Prepare test batch
         Batch batch = batchPool.borrowObject();
         batch.addCommitRetry(FIRST_ST, null, monCtx);
         ReplyBatchEvent e = ReplyBatchEvent.EVENT_FACTORY.newInstance();
         ReplyBatchEvent.makeReplyBatch(e, batch, 0);

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 0);
         assertEquals(batchPool.getNumActive(), 1);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

         try {
             replyProcessor.onEvent(e, ANY_DISRUPTOR_SEQUENCE, false);
             fail();
         } catch (RuntimeException re) {
             // Expected
         }

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 0);
         assertEquals(batchPool.getNumActive(), 1);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

     }

     @Test(timeOut = 10_000)
     public void testUnorderedBatchSequenceGetsSaved() throws Exception {

         final long HIGH_SEQUENCE_NUMBER = 1234L; // Should be greater than 0

         // Prepare test batch
         Batch batch = batchPool.borrowObject();
         ReplyBatchEvent e = ReplyBatchEvent.EVENT_FACTORY.newInstance();
         ReplyBatchEvent.makeReplyBatch(e, batch, HIGH_SEQUENCE_NUMBER);

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 0);
         assertEquals(batchPool.getNumActive(), 1);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

         replyProcessor.onEvent(e, ANY_DISRUPTOR_SEQUENCE, false);

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 1);
         assertEquals(batchPool.getNumActive(), 1);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);
         assertTrue(batch.isEmpty());
         verify(replyProcessor, times(0)).handleReplyBatchEvent(any(ReplyBatchEvent.class));

     }

     @Test(timeOut = 10_000)
     public void testProcessingOfEmptyBatchReplyEvent() throws Exception {

         // Prepare test batch
         Batch batch = batchPool.borrowObject();
         ReplyBatchEvent e = ReplyBatchEvent.EVENT_FACTORY.newInstance();
         ReplyBatchEvent.makeReplyBatch(e, batch, 0);

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 0);
         assertEquals(batchPool.getNumActive(), 1);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

         replyProcessor.onEvent(e, ANY_DISRUPTOR_SEQUENCE, false);

         assertEquals(replyProcessor.nextIDToHandle.get(), 1);
         assertEquals(replyProcessor.futureEvents.size(), 0);
         assertEquals(batchPool.getNumActive(), 0);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE);
         assertTrue(batch.isEmpty());
         verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(e));

     }

     @Test(timeOut = 10_000)
     public void testUnorderedSequenceOfBatchReplyEventsThatMustBeOrderedBeforeSendingReplies() throws Exception {

         // Prepare 3 batches with events and simulate a different order of arrival using the batch sequence

         // Prepare first a delayed batch (Batch #3)
         Batch thirdBatch = batchPool.borrowObject();
         thirdBatch.addTimestamp(FIRST_ST, mock(Channel.class), monCtx);
         thirdBatch.addCommit(SECOND_ST, SECOND_CT, mock(Channel.class), monCtx);
         ReplyBatchEvent thirdBatchEvent = ReplyBatchEvent.EVENT_FACTORY.newInstance();
         ReplyBatchEvent.makeReplyBatch(thirdBatchEvent, thirdBatch, 2); // Set a higher sequence than the initial one

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 0);
         assertEquals(batchPool.getNumActive(), 1);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

         replyProcessor.onEvent(thirdBatchEvent, ANY_DISRUPTOR_SEQUENCE, false);

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 1);
         assertEquals(batchPool.getNumActive(), 1);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);
         assertFalse(thirdBatch.isEmpty());
         verify(replyProcessor, never()).handleReplyBatchEvent(eq(thirdBatchEvent));

         // Prepare another delayed batch (Batch #2)
         Batch secondBatch = batchPool.borrowObject();
         secondBatch.addTimestamp(THIRD_ST, mock(Channel.class), monCtx);
         secondBatch.addCommit(FOURTH_ST, FOURTH_CT, mock(Channel.class), monCtx);
         ReplyBatchEvent secondBatchEvent = ReplyBatchEvent.EVENT_FACTORY.newInstance();
         ReplyBatchEvent.makeReplyBatch(secondBatchEvent, secondBatch, 1); // Set another higher sequence

         replyProcessor.onEvent(secondBatchEvent, ANY_DISRUPTOR_SEQUENCE, false);

         assertEquals(replyProcessor.nextIDToHandle.get(), 0);
         assertEquals(replyProcessor.futureEvents.size(), 2);
         assertEquals(batchPool.getNumActive(), 2);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 2);
         assertFalse(secondBatch.isEmpty());
         assertFalse(thirdBatch.isEmpty());

         // Finally, prepare the batch that should trigger the execution of the other two
         Batch firstBatch = batchPool.borrowObject();
         firstBatch.addAbort(FIFTH_ST, mock(Channel.class), monCtx);
         ReplyBatchEvent firstBatchEvent = ReplyBatchEvent.EVENT_FACTORY.newInstance();
         ReplyBatchEvent.makeReplyBatch(firstBatchEvent, firstBatch, 0); // Set the first batch with a higher sequence

         replyProcessor.onEvent(firstBatchEvent, ANY_DISRUPTOR_SEQUENCE, false);

         assertEquals(replyProcessor.nextIDToHandle.get(), 3);
         assertEquals(replyProcessor.futureEvents.size(), 0);
         assertEquals(batchPool.getNumActive(), 0);
         assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE);
         assertTrue(firstBatch.isEmpty());
         assertTrue(secondBatch.isEmpty());
         assertTrue(thirdBatch.isEmpty());

         // Check the method calls have been properly ordered

         InOrder inOrderReplyBatchEvents = inOrder(replyProcessor, replyProcessor, replyProcessor);
         inOrderReplyBatchEvents.verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(firstBatchEvent));
         inOrderReplyBatchEvents.verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(secondBatchEvent));
         inOrderReplyBatchEvents.verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(thirdBatchEvent));

         InOrder inOrderReplies = inOrder(replyProcessor, replyProcessor, replyProcessor, replyProcessor, replyProcessor);
         inOrderReplies.verify(replyProcessor, times(1)).sendAbortResponse(eq(FIFTH_ST), any(Channel.class), eq(monCtx));
         inOrderReplies.verify(replyProcessor, times(1)).sendTimestampResponse(eq(THIRD_ST), any(Channel.class), eq(monCtx));
         inOrderReplies.verify(replyProcessor, times(1)).sendCommitResponse(eq(FOURTH_ST), eq(FOURTH_CT), any(Channel.class), eq(monCtx));
         inOrderReplies.verify(replyProcessor, times(1)).sendTimestampResponse(eq(FIRST_ST), any(Channel.class), eq(monCtx));
         inOrderReplies.verify(replyProcessor, times(1)).sendCommitResponse(eq(SECOND_ST), eq(SECOND_CT), any(Channel.class), eq(monCtx));

     }

 }
	/*
	* 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.omid.tso;

	import org.apache.commons.pool2.ObjectPool;
	import org.apache.omid.metrics.MetricsRegistry;
	import org.apache.omid.metrics.NullMetricsProvider;
	import org.apache.omid.tso.ReplyProcessorImpl.ReplyBatchEvent;
	import org.jboss.netty.channel.Channel;
	import org.mockito.InOrder;
	import org.mockito.Mock;
	import org.mockito.MockitoAnnotations;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;
	import org.testng.annotations.AfterMethod;
	import org.testng.annotations.BeforeMethod;
	import org.testng.annotations.Test;

	import com.lmax.disruptor.BlockingWaitStrategy;

	import static org.mockito.Matchers.any;
	import static org.mockito.Matchers.eq;
	import static org.mockito.Mockito.inOrder;
	import static org.mockito.Mockito.mock;
	import static org.mockito.Mockito.never;
	import static org.mockito.Mockito.spy;
	import static org.mockito.Mockito.times;
	import static org.mockito.Mockito.verify;
	import static org.testng.Assert.assertEquals;
	import static org.testng.Assert.assertFalse;
	import static org.testng.Assert.assertTrue;
	import static org.testng.Assert.fail;

	public class TestReplyProcessor {

	private static final Logger LOG = LoggerFactory.getLogger(TestReplyProcessor.class);

	private static final long ANY_DISRUPTOR_SEQUENCE = 1234L;

	public static final int BATCH_POOL_SIZE = 3;

	private static final long FIRST_ST = 0L;
	private static final long FIRST_CT = 1L;
	private static final long SECOND_ST = 2L;
	private static final long SECOND_CT = 3L;
	private static final long THIRD_ST = 4L;
	private static final long THIRD_CT = 5L;
	private static final long FOURTH_ST = 6L;
	private static final long FOURTH_CT = 7L;
	private static final long FIFTH_ST = 8L;
	private static final long FIFTH_CT = 9L;
	private static final long SIXTH_ST = 10L;

	@Mock
	private Panicker panicker;

	@Mock
	private MonitoringContextImpl monCtx;

	private MetricsRegistry metrics;

	private ObjectPool<Batch> batchPool;

	// Component under test
	private ReplyProcessorImpl replyProcessor;

	@BeforeMethod(alwaysRun = true, timeOut = 30_000)
	public void initMocksAndComponents() throws Exception {

	MockitoAnnotations.initMocks(this);

	TSOServerConfig tsoConfig = new TSOServerConfig();
	tsoConfig.setNumConcurrentCTWriters(BATCH_POOL_SIZE);

	// Configure null metrics provider
	metrics = new NullMetricsProvider();

	batchPool = spy(new BatchPoolModule(tsoConfig).getBatchPool());

	replyProcessor = spy(new ReplyProcessorImpl(new BlockingWaitStrategy(), metrics, panicker, batchPool));

	}

	@AfterMethod
	void afterMethod() {
	}

	@Test(timeOut = 10_000)
	public void testBadFormedPackageThrowsException() throws Exception {

	// We need an instance throwing exceptions for this test
	replyProcessor = spy(new ReplyProcessorImpl(new BlockingWaitStrategy(), metrics, new RuntimeExceptionPanicker(), batchPool));

	// Prepare test batch
	Batch batch = batchPool.borrowObject();
	batch.addCommitRetry(FIRST_ST, null, monCtx);
	ReplyBatchEvent e = ReplyBatchEvent.EVENT_FACTORY.newInstance();
	ReplyBatchEvent.makeReplyBatch(e, batch, 0);

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 0);
	assertEquals(batchPool.getNumActive(), 1);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

	try {
	replyProcessor.onEvent(e, ANY_DISRUPTOR_SEQUENCE, false);
	fail();
	} catch (RuntimeException re) {
	// Expected
	}

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 0);
	assertEquals(batchPool.getNumActive(), 1);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

	}

	@Test(timeOut = 10_000)
	public void testUnorderedBatchSequenceGetsSaved() throws Exception {

	final long HIGH_SEQUENCE_NUMBER = 1234L; // Should be greater than 0

	// Prepare test batch
	Batch batch = batchPool.borrowObject();
	ReplyBatchEvent e = ReplyBatchEvent.EVENT_FACTORY.newInstance();
	ReplyBatchEvent.makeReplyBatch(e, batch, HIGH_SEQUENCE_NUMBER);

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 0);
	assertEquals(batchPool.getNumActive(), 1);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

	replyProcessor.onEvent(e, ANY_DISRUPTOR_SEQUENCE, false);

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 1);
	assertEquals(batchPool.getNumActive(), 1);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);
	assertTrue(batch.isEmpty());
	verify(replyProcessor, times(0)).handleReplyBatchEvent(any(ReplyBatchEvent.class));

	}

	@Test(timeOut = 10_000)
	public void testProcessingOfEmptyBatchReplyEvent() throws Exception {

	// Prepare test batch
	Batch batch = batchPool.borrowObject();
	ReplyBatchEvent e = ReplyBatchEvent.EVENT_FACTORY.newInstance();
	ReplyBatchEvent.makeReplyBatch(e, batch, 0);

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 0);
	assertEquals(batchPool.getNumActive(), 1);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

	replyProcessor.onEvent(e, ANY_DISRUPTOR_SEQUENCE, false);

	assertEquals(replyProcessor.nextIDToHandle.get(), 1);
	assertEquals(replyProcessor.futureEvents.size(), 0);
	assertEquals(batchPool.getNumActive(), 0);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE);
	assertTrue(batch.isEmpty());
	verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(e));

	}

	@Test(timeOut = 10_000)
	public void testUnorderedSequenceOfBatchReplyEventsThatMustBeOrderedBeforeSendingReplies() throws Exception {

	// Prepare 3 batches with events and simulate a different order of arrival using the batch sequence

	// Prepare first a delayed batch (Batch #3)
	Batch thirdBatch = batchPool.borrowObject();
	thirdBatch.addTimestamp(FIRST_ST, mock(Channel.class), monCtx);
	thirdBatch.addCommit(SECOND_ST, SECOND_CT, mock(Channel.class), monCtx);
	ReplyBatchEvent thirdBatchEvent = ReplyBatchEvent.EVENT_FACTORY.newInstance();
	ReplyBatchEvent.makeReplyBatch(thirdBatchEvent, thirdBatch, 2); // Set a higher sequence than the initial one

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 0);
	assertEquals(batchPool.getNumActive(), 1);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);

	replyProcessor.onEvent(thirdBatchEvent, ANY_DISRUPTOR_SEQUENCE, false);

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 1);
	assertEquals(batchPool.getNumActive(), 1);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 1);
	assertFalse(thirdBatch.isEmpty());
	verify(replyProcessor, never()).handleReplyBatchEvent(eq(thirdBatchEvent));

	// Prepare another delayed batch (Batch #2)
	Batch secondBatch = batchPool.borrowObject();
	secondBatch.addTimestamp(THIRD_ST, mock(Channel.class), monCtx);
	secondBatch.addCommit(FOURTH_ST, FOURTH_CT, mock(Channel.class), monCtx);
	ReplyBatchEvent secondBatchEvent = ReplyBatchEvent.EVENT_FACTORY.newInstance();
	ReplyBatchEvent.makeReplyBatch(secondBatchEvent, secondBatch, 1); // Set another higher sequence

	replyProcessor.onEvent(secondBatchEvent, ANY_DISRUPTOR_SEQUENCE, false);

	assertEquals(replyProcessor.nextIDToHandle.get(), 0);
	assertEquals(replyProcessor.futureEvents.size(), 2);
	assertEquals(batchPool.getNumActive(), 2);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE - 2);
	assertFalse(secondBatch.isEmpty());
	assertFalse(thirdBatch.isEmpty());

	// Finally, prepare the batch that should trigger the execution of the other two
	Batch firstBatch = batchPool.borrowObject();
	firstBatch.addAbort(FIFTH_ST, mock(Channel.class), monCtx);
	ReplyBatchEvent firstBatchEvent = ReplyBatchEvent.EVENT_FACTORY.newInstance();
	ReplyBatchEvent.makeReplyBatch(firstBatchEvent, firstBatch, 0); // Set the first batch with a higher sequence

	replyProcessor.onEvent(firstBatchEvent, ANY_DISRUPTOR_SEQUENCE, false);

	assertEquals(replyProcessor.nextIDToHandle.get(), 3);
	assertEquals(replyProcessor.futureEvents.size(), 0);
	assertEquals(batchPool.getNumActive(), 0);
	assertEquals(batchPool.getNumIdle(), BATCH_POOL_SIZE);
	assertTrue(firstBatch.isEmpty());
	assertTrue(secondBatch.isEmpty());
	assertTrue(thirdBatch.isEmpty());

	// Check the method calls have been properly ordered

	InOrder inOrderReplyBatchEvents = inOrder(replyProcessor, replyProcessor, replyProcessor);
	inOrderReplyBatchEvents.verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(firstBatchEvent));
	inOrderReplyBatchEvents.verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(secondBatchEvent));
	inOrderReplyBatchEvents.verify(replyProcessor, times(1)).handleReplyBatchEvent(eq(thirdBatchEvent));

	InOrder inOrderReplies = inOrder(replyProcessor, replyProcessor, replyProcessor, replyProcessor, replyProcessor);
	inOrderReplies.verify(replyProcessor, times(1)).sendAbortResponse(eq(FIFTH_ST), any(Channel.class), eq(monCtx));
	inOrderReplies.verify(replyProcessor, times(1)).sendTimestampResponse(eq(THIRD_ST), any(Channel.class), eq(monCtx));
	inOrderReplies.verify(replyProcessor, times(1)).sendCommitResponse(eq(FOURTH_ST), eq(FOURTH_CT), any(Channel.class), eq(monCtx));
	inOrderReplies.verify(replyProcessor, times(1)).sendTimestampResponse(eq(FIRST_ST), any(Channel.class), eq(monCtx));
	inOrderReplies.verify(replyProcessor, times(1)).sendCommitResponse(eq(SECOND_ST), eq(SECOND_CT), any(Channel.class), eq(monCtx));

	}

	}