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;
13 import com.google.common.base.Optional;
14 import com.google.common.io.ByteSource;
15 import com.google.protobuf.ByteString;
16 import java.io.IOException;
17 import java.io.Serializable;
18 import java.util.Arrays;
19 import java.util.HashMap;
21 import org.apache.commons.lang3.SerializationUtils;
22 import org.junit.Before;
23 import org.junit.Test;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 public class SnapshotTrackerTest {
29 Logger logger = LoggerFactory.getLogger(getClass());
31 Map<String, String> data;
32 ByteString byteString;
39 data = new HashMap<>();
40 data.put("key1", "value1");
41 data.put("key2", "value2");
42 data.put("key3", "value3");
44 byteString = ByteString.copyFrom(SerializationUtils.serialize((Serializable) data));
45 chunk1 = getNextChunk(byteString, 0, 10);
46 chunk2 = getNextChunk(byteString, 10, 10);
47 chunk3 = getNextChunk(byteString, 20, byteString.size());
51 public void testAddChunks() throws IOException {
52 SnapshotTracker tracker = new SnapshotTracker(logger, 3, "leader");
54 tracker.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
55 tracker.addChunk(2, chunk2, Optional.of(Arrays.hashCode(chunk1)));
56 tracker.addChunk(3, chunk3, Optional.of(Arrays.hashCode(chunk2)));
58 ByteSource snapshotBytes = tracker.getSnapshotBytes();
59 assertEquals("Deserialized", data, SerializationUtils.deserialize(snapshotBytes.read()));
64 @Test(expected = SnapshotTracker.InvalidChunkException.class)
65 public void testAddChunkWhenAlreadySealed() throws IOException {
66 try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
67 tracker.addChunk(1, chunk1, Optional.<Integer>absent());
68 tracker.addChunk(2, chunk2, Optional.<Integer>absent());
69 tracker.addChunk(3, chunk3, Optional.<Integer>absent());
73 @Test(expected = SnapshotTracker.InvalidChunkException.class)
74 public void testInvalidFirstChunkIndex() throws IOException {
75 try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
76 tracker.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX - 1, chunk1, Optional.<Integer>absent());
80 @Test(expected = SnapshotTracker.InvalidChunkException.class)
81 public void testOutOfSequenceChunk() throws IOException {
82 try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
83 tracker.addChunk(1, chunk1, Optional.<Integer>absent());
84 tracker.addChunk(3, chunk3, Optional.<Integer>absent());
88 @Test(expected = SnapshotTracker.InvalidChunkException.class)
89 public void testInvalidLastChunkHashCode() throws IOException {
90 try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
91 tracker.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
92 tracker.addChunk(2, chunk2, Optional.of(1));
96 @Test(expected = IllegalStateException.class)
97 public void testGetSnapshotBytesWhenNotSealed() throws IOException {
98 try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
99 tracker.addChunk(1, chunk1, Optional.<Integer>absent());
100 tracker.getSnapshotBytes();
104 private byte[] getNextChunk(ByteString bs, int offset, int size) {
105 int snapshotLength = bs.size();
107 if (size > snapshotLength) {
108 size = snapshotLength;
110 if (start + size > snapshotLength) {
111 size = snapshotLength - start;
115 byte[] nextChunk = new byte[size];
116 bs.copyTo(nextChunk, start, 0, size);