| package org.apache.jcs.utils.struct; |
| |
| /* |
| * 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. |
| */ |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Unit tests for the bounded queue. |
| * <p> |
| * @author Aaron Smuts |
| */ |
| public class BoundedQueueUnitTest |
| extends TestCase |
| { |
| /** |
| * Verify null returned for empty. |
| */ |
| public void testTakeLastEmpty() |
| { |
| // SETUP |
| int maxSize = 10; |
| BoundedQueue queue = new BoundedQueue( maxSize ); |
| |
| // DO WORK |
| Object result = queue.take(); |
| |
| // VERIFY |
| assertNull( "Result should be null", result ); |
| } |
| |
| /** |
| * Verify that the queue returns the number of elements and the it does not exceed the max. |
| */ |
| public void testSize() |
| { |
| // SETUP |
| int maxSize = 10; |
| BoundedQueue queue = new BoundedQueue( maxSize ); |
| |
| // DO WORK |
| for ( int i = 0; i < maxSize * 2; i++ ) |
| { |
| queue.add( "adfadsf sad " + i ); |
| } |
| |
| int result = queue.size(); |
| |
| // VERIFY |
| assertEquals( "Result size not as expected", maxSize, result ); |
| } |
| |
| /** |
| * Verify that the items come back in the order put in. |
| */ |
| public void testFIFOOrderedTake() |
| { |
| // SETUP |
| int maxSize = 10; |
| BoundedQueue queue = new BoundedQueue( maxSize ); |
| |
| // DO WORK |
| for ( int i = 0; i < maxSize; i++ ) |
| { |
| queue.add( String.valueOf( i ) ); |
| } |
| |
| |
| // VERIFY |
| |
| for ( int i = 0; i < maxSize; i++ ) |
| { |
| String result = (String)queue.take(); |
| assertEquals( "Result not as expected", String.valueOf( i ) , result ); |
| } |
| } |
| } |