2 * Copyright 2018-2022 Open Networking Foundation and others. All rights reserved.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package io.atomix.storage.journal.index;
18 import org.junit.Test;
20 import static org.junit.Assert.assertEquals;
21 import static org.junit.Assert.assertNull;
24 * Sparse journal index test.
26 public class SparseJournalIndexTest {
28 public void testSparseJournalIndex() throws Exception {
29 JournalIndex index = new SparseJournalIndex(.2);
30 assertNull(index.lookup(1));
32 assertNull(index.lookup(1));
37 assertEquals(new Position(5, 10), index.lookup(5));
41 assertEquals(new Position(5, 10), index.lookup(8));
44 assertEquals(new Position(10, 20), index.lookup(10));
46 assertEquals(new Position(5, 10), index.lookup(8));
47 assertEquals(new Position(5, 10), index.lookup(10));
49 assertNull(index.lookup(4));
50 assertNull(index.lookup(8));
52 index = new SparseJournalIndex(.2);
53 assertNull(index.lookup(100));
55 assertNull(index.lookup(1));
60 assertEquals(new Position(105, 10), index.lookup(105));
64 assertEquals(new Position(105, 10), index.lookup(108));
67 assertEquals(new Position(110, 20), index.lookup(110));
69 assertEquals(new Position(105, 10), index.lookup(108));
70 assertEquals(new Position(105, 10), index.lookup(110));
72 assertNull(index.lookup(104));
73 assertNull(index.lookup(108));