opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/ReplicatedLogImplTest.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.raft;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.mockito.Matchers.same;
  12 import static org.mockito.Mockito.doReturn;
  13 import static org.mockito.Mockito.reset;
  14 import static org.mockito.Mockito.verify;
  15 import static org.mockito.Mockito.verifyNoMoreInteractions;
  16 import akka.japi.Procedure;
  17 import com.google.common.base.Supplier;
  18 import java.util.Collections;
  19 import org.hamcrest.BaseMatcher;
  20 import org.hamcrest.Description;
  21 import org.hamcrest.Matcher;
  22 import org.junit.Before;
  23 import org.junit.Test;
  24 import org.mockito.ArgumentCaptor;
  25 import org.mockito.Matchers;
  26 import org.mockito.Mock;
  27 import org.mockito.Mockito;
  28 import org.mockito.MockitoAnnotations;
  29 import org.mockito.internal.matchers.Same;
  30 import org.opendaylight.controller.cluster.DataPersistenceProvider;
  31 import org.opendaylight.controller.cluster.raft.MockRaftActorContext.MockPayload;
  32 import org.opendaylight.controller.cluster.raft.MockRaftActorContext.MockReplicatedLogEntry;
  33 import org.opendaylight.controller.cluster.raft.base.messages.DeleteEntries;
  34 import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 /**
  39  * Unit tests for ReplicatedLogImpl.
  40  *
  41  * @author Thomas Pantelis
  42  */
  43 public class ReplicatedLogImplTest {
  44     private static final Logger LOG = LoggerFactory.getLogger(RaftActorRecoverySupportTest.class);
  45
  46     @Mock
  47     private DataPersistenceProvider mockPersistence;
  48
  49     @Mock
  50     private RaftActorBehavior mockBehavior;
  51
  52     private RaftActorContext context;
  53     private final DefaultConfigParamsImpl configParams = new DefaultConfigParamsImpl();
  54
  55     @Before
  56     public void setup() {
  57         MockitoAnnotations.initMocks(this);
  58
  59         context = new RaftActorContextImpl(null, null, "test",
  60                 new ElectionTermImpl(mockPersistence, "test", LOG),
  61                 -1, -1, Collections.<String,String>emptyMap(), configParams, mockPersistence, LOG);
  62     }
  63
  64     private void verifyPersist(Object message) throws Exception {
  65         verifyPersist(message, new Same(message));
  66     }
  67
  68     @SuppressWarnings({ "unchecked", "rawtypes" })
  69     private void verifyPersist(Object message, Matcher<?> matcher) throws Exception {
  70         ArgumentCaptor<Procedure> procedure = ArgumentCaptor.forClass(Procedure.class);
  71         verify(mockPersistence).persist(Matchers.argThat(matcher), procedure.capture());
  72
  73         procedure.getValue().apply(message);
  74     }
  75
  76     @SuppressWarnings("unchecked")
  77     @Test
  78     public void testAppendAndPersistExpectingNoCapture() throws Exception {
  79         ReplicatedLog log = ReplicatedLogImpl.newInstance(context, mockBehavior);
  80
  81         MockReplicatedLogEntry logEntry = new MockReplicatedLogEntry(1, 1, new MockPayload("1"));
  82
  83         log.appendAndPersist(logEntry);
  84
  85         verifyPersist(logEntry);
  86
  87         assertEquals("size", 1, log.size());
  88
  89         reset(mockPersistence);
  90
  91         Procedure<ReplicatedLogEntry> mockCallback = Mockito.mock(Procedure.class);
  92         log.appendAndPersist(logEntry, mockCallback);
  93
  94         verifyPersist(logEntry);
  95
  96         verify(mockCallback).apply(same(logEntry));
  97
  98         assertEquals("size", 2, log.size());
  99     }
 100
 101     @Test
 102     public void testAppendAndPersistExpectingCaptureDueToJournalCount() throws Exception {
 103         configParams.setSnapshotBatchCount(2);
 104
 105         doReturn(1L).when(mockBehavior).getReplicatedToAllIndex();
 106
 107         ReplicatedLog log = ReplicatedLogImpl.newInstance(context, mockBehavior);
 108
 109         MockReplicatedLogEntry logEntry1 = new MockReplicatedLogEntry(1, 2, new MockPayload("2"));
 110         MockReplicatedLogEntry logEntry2 = new MockReplicatedLogEntry(1, 3, new MockPayload("3"));
 111
 112         log.appendAndPersist(logEntry1);
 113         verifyPersist(logEntry1);
 114
 115         reset(mockPersistence);
 116
 117         log.appendAndPersist(logEntry2);
 118         verifyPersist(logEntry2);
 119
 120
 121         assertEquals("size", 2, log.size());
 122     }
 123
 124     @Test
 125     public void testAppendAndPersistExpectingCaptureDueToDataSize() throws Exception {
 126         doReturn(1L).when(mockBehavior).getReplicatedToAllIndex();
 127
 128         context.setTotalMemoryRetriever(new Supplier<Long>() {
 129             @Override
 130             public Long get() {
 131                 return 100L;
 132             }
 133         });
 134
 135         ReplicatedLog log = ReplicatedLogImpl.newInstance(context, mockBehavior);
 136
 137         int dataSize = 600;
 138         MockReplicatedLogEntry logEntry = new MockReplicatedLogEntry(1, 2, new MockPayload("2", dataSize));
 139
 140         log.appendAndPersist(logEntry);
 141         verifyPersist(logEntry);
 142
 143         reset(mockPersistence);
 144
 145         logEntry = new MockReplicatedLogEntry(1, 3, new MockPayload("3", 5));
 146
 147         log.appendAndPersist(logEntry);
 148         verifyPersist(logEntry);
 149
 150         assertEquals("size", 2, log.size());
 151     }
 152
 153     @Test
 154     public void testRemoveFromAndPersist() throws Exception {
 155
 156         ReplicatedLog log = ReplicatedLogImpl.newInstance(context, mockBehavior);
 157
 158         log.append(new MockReplicatedLogEntry(1, 0, new MockPayload("0")));
 159         log.append(new MockReplicatedLogEntry(1, 1, new MockPayload("1")));
 160         log.append(new MockReplicatedLogEntry(1, 2, new MockPayload("2")));
 161
 162         log.removeFromAndPersist(1);
 163
 164         DeleteEntries deleteEntries = new DeleteEntries(1);
 165         verifyPersist(deleteEntries, match(deleteEntries));
 166
 167         assertEquals("size", 1, log.size());
 168
 169         reset(mockPersistence);
 170
 171         log.removeFromAndPersist(1);
 172
 173         verifyNoMoreInteractions(mockPersistence);
 174     }
 175
 176     public Matcher<DeleteEntries> match(final DeleteEntries actual){
 177         return new BaseMatcher<DeleteEntries>() {
 178             @Override
 179             public boolean matches(Object o) {
 180                 DeleteEntries other = (DeleteEntries) o;
 181                 return actual.getFromIndex() == other.getFromIndex();
 182             }
 183
 184             @Override
 185             public void describeTo(Description description) {
 186                 description.appendText("DeleteEntries: fromIndex: " + actual.getFromIndex());
 187             }
 188         };
 189     }
 190 }