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
8 package org.opendaylight.controller.cluster.raft.behaviors;
10 import static org.junit.Assert.assertEquals;
11 import static org.mockito.Mockito.doReturn;
12 import static org.mockito.Mockito.mock;
13 import static org.mockito.Mockito.spy;
14 import static org.mockito.Mockito.verify;
16 import akka.protobuf.ByteString;
17 import com.google.common.io.ByteSource;
18 import java.io.IOException;
19 import java.util.Arrays;
20 import java.util.HashMap;
21 import java.util.OptionalInt;
22 import org.apache.commons.lang3.SerializationUtils;
23 import org.junit.Before;
24 import org.junit.Test;
25 import org.junit.runner.RunWith;
26 import org.mockito.Mock;
27 import org.mockito.junit.MockitoJUnitRunner;
28 import org.opendaylight.controller.cluster.io.FileBackedOutputStream;
29 import org.opendaylight.controller.cluster.io.FileBackedOutputStreamFactory;
30 import org.opendaylight.controller.cluster.raft.RaftActorContext;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
34 @RunWith(MockitoJUnitRunner.StrictStubs.class)
35 public class SnapshotTrackerTest {
36 private static final Logger LOG = LoggerFactory.getLogger(SnapshotTrackerTest.class);
38 private final HashMap<String, String> data = new HashMap<>();
41 private RaftActorContext mockContext;
42 private FileBackedOutputStream fbos;
43 private ByteString byteString;
44 private byte[] chunk1;
45 private byte[] chunk2;
46 private byte[] chunk3;
50 data.put("key1", "value1");
51 data.put("key2", "value2");
52 data.put("key3", "value3");
54 byteString = ByteString.copyFrom(SerializationUtils.serialize(data));
55 chunk1 = getNextChunk(byteString, 0, 10);
56 chunk2 = getNextChunk(byteString, 10, 10);
57 chunk3 = getNextChunk(byteString, 20, byteString.size());
59 fbos = spy(new FileBackedOutputStream(100000000, "target"));
60 FileBackedOutputStreamFactory mockFactory = mock(FileBackedOutputStreamFactory.class);
61 doReturn(fbos).when(mockFactory).newInstance();
62 doReturn(mockFactory).when(mockContext).getFileBackedOutputStreamFactory();
66 public void testAddChunks() throws IOException {
67 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 3, "leader", mockContext)) {
68 tracker.addChunk(1, chunk1, OptionalInt.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
69 tracker.addChunk(2, chunk2, OptionalInt.of(Arrays.hashCode(chunk1)));
70 tracker.addChunk(3, chunk3, OptionalInt.of(Arrays.hashCode(chunk2)));
72 ByteSource snapshotBytes = tracker.getSnapshotBytes();
73 assertEquals("Deserialized", data, SerializationUtils.deserialize(snapshotBytes.read()));
76 verify(fbos).cleanup();
79 @Test(expected = SnapshotTracker.InvalidChunkException.class)
80 public void testAddChunkWhenAlreadySealed() throws IOException {
81 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
82 tracker.addChunk(1, chunk1, OptionalInt.empty());
83 tracker.addChunk(2, chunk2, OptionalInt.empty());
84 tracker.addChunk(3, chunk3, OptionalInt.empty());
88 @Test(expected = SnapshotTracker.InvalidChunkException.class)
89 public void testInvalidFirstChunkIndex() throws IOException {
90 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
91 tracker.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX - 1, chunk1, OptionalInt.empty());
95 @Test(expected = SnapshotTracker.InvalidChunkException.class)
96 public void testOutOfSequenceChunk() throws IOException {
97 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
98 tracker.addChunk(1, chunk1, OptionalInt.empty());
99 tracker.addChunk(3, chunk3, OptionalInt.empty());
103 @Test(expected = SnapshotTracker.InvalidChunkException.class)
104 public void testInvalidLastChunkHashCode() throws IOException {
105 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
106 tracker.addChunk(1, chunk1, OptionalInt.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
107 tracker.addChunk(2, chunk2, OptionalInt.of(1));
111 @Test(expected = IllegalStateException.class)
112 public void testGetSnapshotBytesWhenNotSealed() throws IOException {
113 try (SnapshotTracker tracker = new SnapshotTracker(LOG, 2, "leader", mockContext)) {
114 tracker.addChunk(1, chunk1, OptionalInt.empty());
115 tracker.getSnapshotBytes();
119 private static byte[] getNextChunk(final ByteString bs, final int offset, int size) {
120 int snapshotLength = bs.size();
122 if (size > snapshotLength) {
123 size = snapshotLength;
124 } else if (start + size > snapshotLength) {
125 size = snapshotLength - start;
128 byte[] nextChunk = new byte[size];
129 bs.copyTo(nextChunk, start, 0, size);