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