opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/OperationLimiterTest.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.datastore;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import java.util.concurrent.Semaphore;
  12 import org.junit.Test;
  13 import org.opendaylight.controller.cluster.datastore.identifiers.TransactionIdentifier;
  14 import org.opendaylight.controller.cluster.datastore.messages.BatchedModificationsReply;
  15 import org.opendaylight.controller.cluster.datastore.messages.DataExistsReply;
  16
  17 /**
  18  * Unit tests for OperationCompleter.
  19  *
  20  * @author Thomas Pantelis
  21  */
  22 public class OperationLimiterTest {
  23
  24     @Test
  25     public void testOnComplete() throws Exception {
  26         int permits = 10;
  27         OperationLimiter limiter = new OperationLimiter(new TransactionIdentifier("foo", 1), permits, 1);
  28         Semaphore semaphore = limiter.getSemaphore();
  29         semaphore.acquire(permits);
  30         int availablePermits = 0;
  31
  32         limiter.onComplete(null, DataExistsReply.create(true));
  33         assertEquals("availablePermits", ++availablePermits, semaphore.availablePermits());
  34
  35         limiter.onComplete(null, DataExistsReply.create(true));
  36         assertEquals("availablePermits", ++availablePermits, semaphore.availablePermits());
  37
  38         limiter.onComplete(null, new IllegalArgumentException());
  39         assertEquals("availablePermits", ++availablePermits, semaphore.availablePermits());
  40
  41         limiter.onComplete(null, new BatchedModificationsReply(4));
  42         availablePermits += 4;
  43         assertEquals("availablePermits", availablePermits, semaphore.availablePermits());
  44     }
  45 }