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
  16 import akka.util.Timeout;
  17 import com.google.common.util.concurrent.Uninterruptibles;
  18 import java.util.concurrent.Executors;
  19 import java.util.concurrent.TimeUnit;
  20 import org.junit.AfterClass;
  21 import org.junit.Before;
  22 import org.junit.BeforeClass;
  23 import org.junit.Test;
  24 import org.mockito.Mock;
  25 import org.mockito.MockitoAnnotations;
  26 import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
  27 import org.opendaylight.controller.cluster.access.concepts.FrontendIdentifier;
  28 import org.opendaylight.controller.cluster.access.concepts.FrontendType;
  29 import org.opendaylight.controller.cluster.access.concepts.MemberName;
  30 import org.opendaylight.controller.cluster.datastore.utils.ActorUtils;
  31 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  32 import org.opendaylight.yangtools.yang.common.Empty;
  33 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  34 import scala.concurrent.duration.FiniteDuration;
  35
  36 public class DistributedDataStoreTest extends AbstractActorTest {
  37     private static final ClientIdentifier UNKNOWN_ID = ClientIdentifier.create(
  38             FrontendIdentifier.create(MemberName.forName("local"), FrontendType.forName("unknown")), 0);
  39
  40     private static SchemaContext SCHEMA_CONTEXT;
  41
  42     @Mock
  43     private ActorUtils actorUtils;
  44
  45     @Mock
  46     private DatastoreContext datastoreContext;
  47
  48     @Mock
  49     private Timeout shardElectionTimeout;
  50
  51     @BeforeClass
  52     public static void beforeClass() {
  53         SCHEMA_CONTEXT = TestModel.createTestContext();
  54     }
  55
  56     @AfterClass
  57     public static void afterClass() {
  58         SCHEMA_CONTEXT = null;
  59     }
  60
  61     @Before
  62     public void setUp() {
  63         MockitoAnnotations.initMocks(this);
  64
  65         doReturn(SCHEMA_CONTEXT).when(actorUtils).getSchemaContext();
  66         doReturn(DatastoreContext.newBuilder().build()).when(actorUtils).getDatastoreContext();
  67     }
  68
  69     @Test
  70     public void testRateLimitingUsedInReadWriteTxCreation() {
  71         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorUtils, UNKNOWN_ID)) {
  72
  73             distributedDataStore.newReadWriteTransaction();
  74
  75             verify(actorUtils, times(1)).acquireTxCreationPermit();
  76         }
  77     }
  78
  79     @Test
  80     public void testRateLimitingUsedInWriteOnlyTxCreation() {
  81         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorUtils, UNKNOWN_ID)) {
  82
  83             distributedDataStore.newWriteOnlyTransaction();
  84
  85             verify(actorUtils, times(1)).acquireTxCreationPermit();
  86         }
  87     }
  88
  89     @Test
  90     public void testRateLimitingNotUsedInReadOnlyTxCreation() {
  91         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorUtils, UNKNOWN_ID)) {
  92
  93             distributedDataStore.newReadOnlyTransaction();
  94             distributedDataStore.newReadOnlyTransaction();
  95             distributedDataStore.newReadOnlyTransaction();
  96
  97             verify(actorUtils, times(0)).acquireTxCreationPermit();
  98         }
  99     }
 100
 101     @Test
 102     public void testWaitTillReadyBlocking() {
 103         doReturn(datastoreContext).when(actorUtils).getDatastoreContext();
 104         doReturn(shardElectionTimeout).when(datastoreContext).getShardLeaderElectionTimeout();
 105         doReturn(1).when(datastoreContext).getInitialSettleTimeoutMultiplier();
 106         doReturn(FiniteDuration.apply(50, TimeUnit.MILLISECONDS)).when(shardElectionTimeout).duration();
 107         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorUtils, UNKNOWN_ID)) {
 108
 109             long start = System.currentTimeMillis();
 110
 111             distributedDataStore.waitTillReady();
 112
 113             long end = System.currentTimeMillis();
 114
 115             assertTrue("Expected to be blocked for 50 millis", end - start >= 50);
 116         }
 117     }
 118
 119     @Test
 120     public void testWaitTillReadyCountDown() {
 121         try (DistributedDataStore distributedDataStore = new DistributedDataStore(actorUtils, UNKNOWN_ID)) {
 122             doReturn(datastoreContext).when(actorUtils).getDatastoreContext();
 123             doReturn(shardElectionTimeout).when(datastoreContext).getShardLeaderElectionTimeout();
 124             doReturn(FiniteDuration.apply(5000, TimeUnit.MILLISECONDS)).when(shardElectionTimeout).duration();
 125
 126             Executors.newSingleThreadExecutor().submit(() -> {
 127                 Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
 128                 distributedDataStore.readinessFuture().set(Empty.value());
 129             });
 130
 131             long start = System.currentTimeMillis();
 132
 133             distributedDataStore.waitTillReady();
 134
 135             long end = System.currentTimeMillis();
 136
 137             assertTrue("Expected to be released in 500 millis", end - start < 5000);
 138         }
 139     }
 140 }