2 * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.controller.cluster.raft.behaviors;
11 import static org.junit.Assert.assertEquals;
12 import static org.mockito.Mockito.doReturn;
13 import static org.mockito.Mockito.mock;
14 import static org.mockito.Mockito.spy;
15 import static org.mockito.Mockito.verify;
17 import com.google.common.base.Optional;
18 import com.google.common.io.ByteSource;
19 import com.google.protobuf.ByteString;
20 import java.io.IOException;
21 import java.io.Serializable;
22 import java.util.Arrays;
23 import java.util.HashMap;
25 import org.apache.commons.lang3.SerializationUtils;
26 import org.junit.Before;
27 import org.junit.Test;
28 import org.mockito.Mock;
29 import org.mockito.MockitoAnnotations;
30 import org.opendaylight.controller.cluster.io.FileBackedOutputStream;
31 import org.opendaylight.controller.cluster.io.FileBackedOutputStreamFactory;
32 import org.opendaylight.controller.cluster.raft.RaftActorContext;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
36 public class SnapshotTrackerTest {
37 private static final Logger LOG = LoggerFactory.getLogger(SnapshotTrackerTest.class);
40 private RaftActorContext mockContext;
41 private FileBackedOutputStream fbos;
42 private Map<String, String> data;
43 private ByteString byteString;
44 private byte[] chunk1;
45 private byte[] chunk2;
46 private byte[] chunk3;
50 MockitoAnnotations.initMocks(this);
52 data = new HashMap<>();
53 data.put("key1", "value1");
54 data.put("key2", "value2");
55 data.put("key3", "value3");
57 byteString = ByteString.copyFrom(SerializationUtils.serialize((Serializable) data));
58 chunk1 = getNextChunk(byteString, 0, 10);
59 chunk2 = getNextChunk(byteString, 10, 10);
60 chunk3 = getNextChunk(byteString, 20, byteString.size());
62 fbos = spy(new FileBackedOutputStream(100000000, "target"));
63 FileBackedOutputStreamFactory mockFactory = mock(FileBackedOutputStreamFactory.class);
64 doReturn(fbos).when(mockFactory).newInstance();
65 doReturn(mockFactory).when(mockContext).getFileBackedOutputStreamFactory();
69 public void testAddChunks() throws IOException {
70 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 3, "leader", mockContext)) {
71 tracker.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
72 tracker.addChunk(2, chunk2, Optional.of(Arrays.hashCode(chunk1)));
73 tracker.addChunk(3, chunk3, Optional.of(Arrays.hashCode(chunk2)));
75 ByteSource snapshotBytes = tracker.getSnapshotBytes();
76 assertEquals("Deserialized", data, SerializationUtils.deserialize(snapshotBytes.read()));
79 verify(fbos).cleanup();
82 @Test(expected = SnapshotTracker.InvalidChunkException.class)
83 public void testAddChunkWhenAlreadySealed() throws IOException {
84 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
85 tracker.addChunk(1, chunk1, Optional.<Integer>absent());
86 tracker.addChunk(2, chunk2, Optional.<Integer>absent());
87 tracker.addChunk(3, chunk3, Optional.<Integer>absent());
91 @Test(expected = SnapshotTracker.InvalidChunkException.class)
92 public void testInvalidFirstChunkIndex() throws IOException {
93 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
94 tracker.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX - 1, chunk1, Optional.<Integer>absent());
98 @Test(expected = SnapshotTracker.InvalidChunkException.class)
99 public void testOutOfSequenceChunk() throws IOException {
100 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
101 tracker.addChunk(1, chunk1, Optional.<Integer>absent());
102 tracker.addChunk(3, chunk3, Optional.<Integer>absent());
106 @Test(expected = SnapshotTracker.InvalidChunkException.class)
107 public void testInvalidLastChunkHashCode() throws IOException {
108 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
109 tracker.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
110 tracker.addChunk(2, chunk2, Optional.of(1));
114 @Test(expected = IllegalStateException.class)
115 public void testGetSnapshotBytesWhenNotSealed() throws IOException {
116 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
117 tracker.addChunk(1, chunk1, Optional.<Integer>absent());
118 tracker.getSnapshotBytes();
122 private byte[] getNextChunk(ByteString bs, int offset, int size) {
123 int snapshotLength = bs.size();
125 if (size > snapshotLength) {
126 size = snapshotLength;
128 if (start + size > snapshotLength) {
129 size = snapshotLength - start;
133 byte[] nextChunk = new byte[size];
134 bs.copyTo(nextChunk, start, 0, size);