Commons Collections example source code file (TestPredicatedBuffer.java)

This example Commons Collections source code file (TestPredicatedBuffer.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons Collections tags/keywords

arraystack, arraystack, buffer, buffer, bufferunderflowexception, bufferunderflowexception, collection, collection, expecting, object, predicate, string, testpredicatedbuffer, testpredicatedcollection, util

The Commons Collections TestPredicatedBuffer.java source code

/*
 *  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.commons.collections.buffer;

import java.util.Collection;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.apache.commons.collections.ArrayStack;
import org.apache.commons.collections.Buffer;
import org.apache.commons.collections.BufferUnderflowException;
import org.apache.commons.collections.Predicate;
import org.apache.commons.collections.collection.TestPredicatedCollection;

/**
 * Extension of {@link TestPredicatedCollection} for exercising the 
 * {@link PredicatedBuffer} implementation.
 *
 * @since Commons Collections 3.0
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * 
 * @author Phil Steitz
 */
public class TestPredicatedBuffer extends TestPredicatedCollection {
    
    public TestPredicatedBuffer(String testName) {
        super(testName);
    }
    
    public static Test suite() {
        return new TestSuite(TestPredicatedBuffer.class);
    }
    
    public static void main(String args[]) {
        String[] testCaseName = { TestPredicatedBuffer.class.getName()};
        junit.textui.TestRunner.main(testCaseName);
    }
    
    //---------------------------------------------------------------
    
    protected Buffer decorateBuffer(Buffer buffer, Predicate predicate) {
        return PredicatedBuffer.decorate(buffer, predicate);
    }
    
    public Collection makeCollection() {
        return decorateBuffer(new ArrayStack(), truePredicate);
    }
    
    public Collection makeConfirmedCollection() {
        return new ArrayStack();
    }
    
    public Collection makeConfirmedFullCollection() {
        ArrayStack list = new ArrayStack();
        list.addAll(java.util.Arrays.asList(getFullElements()));
        return list;
    }
    
    //------------------------------------------------------------
    
    public Buffer makeTestBuffer() {
        return decorateBuffer(new ArrayStack(), testPredicate);
    }
    
    public void testGet() {
        Buffer buffer = makeTestBuffer();
        try {
            Object o = buffer.get();
            fail("Expecting BufferUnderflowException");
        } catch (BufferUnderflowException ex) {
            // expected
        }
        buffer.add("one");
        buffer.add("two");
        buffer.add("three");
        assertEquals("Buffer get", buffer.get(), "three");
    }
    
    public void testRemove() {
        Buffer buffer = makeTestBuffer();
        buffer.add("one");
        assertEquals("Buffer get", buffer.remove(), "one");
        try {
            buffer.remove();
            fail("Expecting BufferUnderflowException");
        } catch (BufferUnderflowException ex) {
            // expected
        }      
    }

    public String getCompatibilityVersion() {
        return "3.1";
    }

//    public void testCreate() throws Exception {
//        resetEmpty();
//        writeExternalFormToDisk((java.io.Serializable) collection, "D:/dev/collections/data/test/PredicatedBuffer.emptyCollection.version3.1.obj");
//        resetFull();
//        writeExternalFormToDisk((java.io.Serializable) collection, "D:/dev/collections/data/test/PredicatedBuffer.fullCollection.version3.1.obj");
//    }

}