| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.jackrabbit.oak.segment; |
| |
| import static com.google.common.collect.Iterables.elementsEqual; |
| import static com.google.common.collect.Lists.newArrayList; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.List; |
| |
| import org.apache.jackrabbit.oak.segment.memory.MemoryStore; |
| import org.junit.Test; |
| |
| public class MutableSegmentReferencesTest { |
| |
| @Test |
| public void referencesShouldBeGreaterThanZero() throws Exception { |
| MemoryStore store = new MemoryStore(); |
| SegmentId id = store.getSegmentIdProvider().newDataSegmentId(); |
| |
| MutableSegmentReferences table = new MutableSegmentReferences(); |
| int reference = table.addOrReference(id); |
| assertEquals(1, reference); |
| } |
| |
| @Test |
| public void referencesShouldBeIncrementing() throws Exception { |
| MemoryStore store = new MemoryStore(); |
| SegmentId first = store.getSegmentIdProvider().newDataSegmentId(); |
| SegmentId second = store.getSegmentIdProvider().newDataSegmentId(); |
| |
| MutableSegmentReferences table = new MutableSegmentReferences(); |
| int firstReference = table.addOrReference(first); |
| int secondReference = table.addOrReference(second); |
| assertEquals(firstReference + 1, secondReference); |
| } |
| |
| @Test |
| public void shouldAddNewSegmentReference() throws Exception { |
| MemoryStore store = new MemoryStore(); |
| SegmentId id = store.getSegmentIdProvider().newDataSegmentId(); |
| |
| MutableSegmentReferences table = new MutableSegmentReferences(); |
| int reference = table.addOrReference(id); |
| assertEquals(id, table.getSegmentId(reference)); |
| } |
| |
| @Test |
| public void shouldNotAddSameSegmentIdTwice() throws Exception { |
| MemoryStore store = new MemoryStore(); |
| SegmentId id = store.getSegmentIdProvider().newDataSegmentId(); |
| |
| MutableSegmentReferences table = new MutableSegmentReferences(); |
| int first = table.addOrReference(id); |
| int second = table.addOrReference(id); |
| assertEquals(first, second); |
| } |
| |
| @Test |
| public void shouldMaintainSize() throws Exception { |
| MemoryStore store = new MemoryStore(); |
| SegmentId id = store.getSegmentIdProvider().newDataSegmentId(); |
| |
| MutableSegmentReferences table = new MutableSegmentReferences(); |
| assertEquals(0, table.size()); |
| table.addOrReference(id); |
| assertEquals(1, table.size()); |
| } |
| |
| @Test |
| public void shouldContainAddedSegment() throws Exception { |
| MemoryStore store = new MemoryStore(); |
| SegmentId id = store.getSegmentIdProvider().newDataSegmentId(); |
| |
| MutableSegmentReferences table = new MutableSegmentReferences(); |
| assertFalse(table.contains(id)); |
| table.addOrReference(id); |
| assertTrue(table.contains(id)); |
| } |
| |
| @Test |
| public void shouldIterateInInsertionOrder() throws Exception { |
| MemoryStore store = new MemoryStore(); |
| SegmentId first = store.getSegmentIdProvider().newDataSegmentId(); |
| SegmentId second = store.getSegmentIdProvider().newDataSegmentId(); |
| List<SegmentId> ids = newArrayList(first, second); |
| |
| MutableSegmentReferences table = new MutableSegmentReferences(); |
| table.addOrReference(first); |
| table.addOrReference(second); |
| assertTrue(elementsEqual(ids, table)); |
| } |
| |
| } |