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         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext)) {
  54
  55             distributedDataStore.newReadWriteTransaction();
  56
  57             verify(actorContext, times(1)).acquireTxCreationPermit();
  58         }
  59     }
  60
  61     @Test
  62     public void testRateLimitingUsedInWriteOnlyTxCreation(){
  63         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext)) {
  64
  65             distributedDataStore.newWriteOnlyTransaction();
  66
  67             verify(actorContext, times(1)).acquireTxCreationPermit();
  68         }
  69     }
  70
  71     @Test
  72     public void testRateLimitingNotUsedInReadOnlyTxCreation(){
  73         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext)) {
  74
  75             distributedDataStore.newReadOnlyTransaction();
  76             distributedDataStore.newReadOnlyTransaction();
  77             distributedDataStore.newReadOnlyTransaction();
  78
  79             verify(actorContext, times(0)).acquireTxCreationPermit();
  80         }
  81     }
  82
  83     @Test
  84     public void testWaitTillReadyBlocking(){
  85         doReturn(datastoreContext).when(actorContext).getDatastoreContext();
  86         doReturn(shardElectionTimeout).when(datastoreContext).getShardLeaderElectionTimeout();
  87         doReturn(FiniteDuration.apply(50, TimeUnit.MILLISECONDS)).when(shardElectionTimeout).duration();
  88         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext)) {
  89
  90             long start = System.currentTimeMillis();
  91
  92             distributedDataStore.waitTillReady();
  93
  94             long end = System.currentTimeMillis();
  95
  96             assertTrue("Expected to be blocked for 50 millis", (end - start) >= 50);
  97         }
  98     }
  99
 100     @Test
 101     public void testWaitTillReadyCountDown(){
 102         try (final DistributedDataStore distributedDataStore = new DistributedDataStore(actorContext)) {
 103             doReturn(datastoreContext).when(actorContext).getDatastoreContext();
 104             doReturn(shardElectionTimeout).when(datastoreContext).getShardLeaderElectionTimeout();
 105             doReturn(FiniteDuration.apply(5000, TimeUnit.MILLISECONDS)).when(shardElectionTimeout).duration();
 106
 107             Executors.newSingleThreadExecutor().submit(new Runnable() {
 108                 @Override
 109                 public void run() {
 110                     Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
 111                     distributedDataStore.getWaitTillReadyCountDownLatch().countDown();
 112                 }
 113             });
 114
 115             long start = System.currentTimeMillis();
 116
 117             distributedDataStore.waitTillReady();
 118
 119             long end = System.currentTimeMillis();
 120
 121             assertTrue("Expected to be released in 500 millis", (end - start) < 5000);
 122         }
 123     }
 124
 125 }