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

   1 /*
   2  * Copyright (c) 2014, 2015 Cisco 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
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import static org.junit.Assert.assertTrue;
  12 import static org.mockito.Mockito.doReturn;
  13 import static org.mockito.Mockito.times;
  14 import static org.mockito.Mockito.verify;
  15 import akka.util.Timeout;
  16 import com.google.common.util.concurrent.Uninterruptibles;
  17 import java.util.concurrent.Executors;
  18 import java.util.concurrent.TimeUnit;
  19 import org.junit.Before;
  20 import org.junit.Test;
  21 import org.mockito.Mock;
  22 import org.mockito.MockitoAnnotations;
  23 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  24 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  25 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  26 import scala.concurrent.duration.FiniteDuration;
  27
  28 public class DistributedDataStoreTest extends AbstractActorTest {
  29
  30     private SchemaContext schemaContext;
  31
  32     @Mock
  33     private ActorContext actorContext;
  34
  35     @Mock
  36     private DatastoreContext datastoreContext;
  37
  38     @Mock
  39     private Timeout shardElectionTimeout;
  40
  41     @Before
  42     public void setUp() throws Exception {
  43         MockitoAnnotations.initMocks(this);
  44
  45         schemaContext = TestModel.createTestContext();
  46
  47         doReturn(schemaContext).when(actorContext).getSchemaContext();
  48         doReturn(DatastoreContext.newBuilder().build()).when(actorContext).getDatastoreContext();
  49     }
  50
  51     @Test
  52     public void testRateLimitingUsedInReadWriteTxCreation(){
  53         DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext);
  54
  55         distributedDataStore.newReadWriteTransaction();
  56
  57         verify(actorContext, times(1)).acquireTxCreationPermit();
  58     }
  59
  60     @Test
  61     public void testRateLimitingUsedInWriteOnlyTxCreation(){
  62         DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext);
  63
  64         distributedDataStore.newWriteOnlyTransaction();
  65
  66         verify(actorContext, times(1)).acquireTxCreationPermit();
  67     }
  68
  69
  70     @Test
  71     public void testRateLimitingNotUsedInReadOnlyTxCreation(){
  72         DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext);
  73
  74         distributedDataStore.newReadOnlyTransaction();
  75         distributedDataStore.newReadOnlyTransaction();
  76         distributedDataStore.newReadOnlyTransaction();
  77
  78         verify(actorContext, times(0)).acquireTxCreationPermit();
  79     }
  80
  81     @Test
  82     public void testWaitTillReadyBlocking(){
  83         doReturn(datastoreContext).when(actorContext).getDatastoreContext();
  84         doReturn(shardElectionTimeout).when(datastoreContext).getShardLeaderElectionTimeout();
  85         doReturn(FiniteDuration.apply(50, TimeUnit.MILLISECONDS)).when(shardElectionTimeout).duration();
  86         DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext);
  87
  88         long start = System.currentTimeMillis();
  89
  90         distributedDataStore.waitTillReady();
  91
  92         long end = System.currentTimeMillis();
  93
  94         assertTrue("Expected to be blocked for 50 millis", (end-start) >= 50);
  95     }
  96
  97     @Test
  98     public void testWaitTillReadyCountDown(){
  99         final DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext);
 100         doReturn(datastoreContext).when(actorContext).getDatastoreContext();
 101         doReturn(shardElectionTimeout).when(datastoreContext).getShardLeaderElectionTimeout();
 102         doReturn(FiniteDuration.apply(5000, TimeUnit.MILLISECONDS)).when(shardElectionTimeout).duration();
 103
 104         Executors.newSingleThreadExecutor().submit(new Runnable() {
 105             @Override
 106             public void run() {
 107                 Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
 108                 distributedDataStore.getWaitTillReadyCountDownLatch().countDown();
 109             }
 110         });
 111
 112         long start = System.currentTimeMillis();
 113
 114         distributedDataStore.waitTillReady();
 115
 116         long end = System.currentTimeMillis();
 117
 118         assertTrue("Expected to be released in 500 millis", (end-start) < 5000);
 119
 120     }
 121
 122 }