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ActiveMQ example source code file (VMIndexLinkedListTest.java)

This example ActiveMQ source code file (VMIndexLinkedListTest.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 - ActiveMQ tags/keywords

arraylist, exception, indexitem, indexitem, indexlinkedlist, indexlinkedlist, io, ioexception, ioexception, list, number, number, testcase, util, vmindexlinkedlist, vmindexlinkedlisttest

The ActiveMQ VMIndexLinkedListTest.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.activemq.kaha.impl.index;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import junit.framework.TestCase;
import org.apache.activemq.kaha.StoreEntry;
import org.apache.activemq.kaha.impl.data.Item;

/**
 * 
 */
public class VMIndexLinkedListTest extends TestCase {
    static final int NUMBER = 30;
    private IndexItem root;
    private List<IndexItem> testData = new ArrayList();
    private IndexLinkedList list;

    protected void setUp() throws Exception {
        super.setUp();
        
        IndexItem item = new IndexItem();
        list = createList(item);
        this.root = list.getRoot();
        
        for (int i = 0; i < NUMBER; i++) {
            item = createIndex(list,i);
            testData.add(item);
        }
    }

    protected void tearDown() throws Exception {
        super.tearDown();
        testData.clear();
        list = null;
    }
    
    IndexItem createIndex(IndexLinkedList list,int offset) throws IOException {
        IndexItem result =  new IndexItem();
        result.setOffset(offset);
        return result;
    }
    protected IndexLinkedList createList(IndexItem root) throws IOException {
        return new VMIndexLinkedList(root);
    }
    
    protected void addToList(IndexLinkedList list,IndexItem item) throws IOException {
        list.add(item);
    }
    
    protected void insertToList(IndexLinkedList list,int pos,IndexItem item) throws IOException {
        list.add(pos, item);
    }
    
    protected void insertFirst(IndexLinkedList list,IndexItem item) throws IOException {
        list.addFirst(item);
    }
    
    protected synchronized void remove(IndexLinkedList list,IndexItem item) throws IOException {
        IndexItem root = list.getRoot();
        IndexItem prev = list.getPrevEntry(item);
        IndexItem next = list.getNextEntry(item);
        list.remove(item);
    }
    

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.getFirst()'
     */
    public void testGetFirst() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        assertNotNull(list.getFirst());
        assertTrue(list.getFirst().equals(testData.get(0)));
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.getLast()'
     */
    public void testGetLast() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        assertTrue(list.getLast() == testData.get(testData.size() - 1));
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.removeFirst()'
     */
    public void testRemoveFirst() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        assertTrue(list.removeFirst().equals(testData.get(0)));
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.removeLast()'
     */
    public void testRemoveLast() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        assertTrue(list.removeLast().equals(testData.get(testData.size() - 1)));
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.addFirst(IndexItem)'
     */
    public void testAddFirst() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            insertFirst(list, testData.get(i));
        }
        int count = 0;
        for (int i = testData.size() - 1; i >= 0; i--) {
            assertTrue(testData.get(i).equals(list.get(count++)));
        }
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.addLast(IndexItem)'
     */
    public void testAddLast() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        for (int i = 0; i < testData.size(); i++) {
            assertTrue(testData.get(i).equals(list.get(i)));
        }
    }

    /*
     * test method for 'org.apache.activemq.kaha.impl.VMIndexLinkedList.size()'
     */
    public void testSize() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
            assertTrue(list.size() == i + 1);
        }
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.isEmpty()'
     */
    public void testIsEmpty() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
            assertTrue(list.size() == i + 1);
        }
        list.clear();
        assertTrue(list.isEmpty());
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.add(IndexItem)'
     */
    public void testAddIndexItem() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        for (int i = 0; i < testData.size(); i++) {
            assertTrue(testData.get(i).equals(list.get(i)));
        }
    }

    /*
     * test method for 'org.apache.activemq.kaha.impl.VMIndexLinkedList.clear()'
     */
    public void testClear() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
            assertTrue(list.size() == i + 1);
        }
        list.clear();
        assertTrue(list.isEmpty());
    }

    /*
     * test method for 'org.apache.activemq.kaha.impl.VMIndexLinkedList.add(int,
     * IndexItem)'
     */
    public void testAddIntIndexItem() throws IOException {
        for (int i = 0; i < this.testData.size(); i++) {
            insertToList(list, i, testData.get(i));
        }
        for (int i = 0; i < testData.size(); i++) {
            assertTrue(testData.get(i).equals(list.get(i)));
        }
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.remove(int)'
     */
    public void testRemoveInt() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            insertToList(list, i, testData.get(i));
        }
        for (int i = 0; i < testData.size(); i++) {
            list.remove(0);
        }
        assertTrue(list.isEmpty());
        for (int i = 0; i < testData.size(); i++) {
            insertToList(list, i, testData.get(i));
        }
        for (int i = 0; i < testData.size(); i++) {
            list.remove(list.size() - 1);
        }
        assertTrue(list.isEmpty());
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.indexOf(IndexItem)'
     */
    public void testIndexOf() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        for (int i = 0; i < testData.size(); i++) {
            assertTrue(list.indexOf(testData.get(i)) == i);
        }
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.getNextEntry(IndexItem)'
     */
    public void testGetNextEntry() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        IndexItem next = list.getFirst();
        int count = 0;
        while (next != null) {
            assertTrue(next.equals(testData.get(count++)));
            next = list.getNextEntry(next);
            assertTrue(next == null || !next.equals(root));
        }
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.getPrevEntry(IndexItem)'
     */
    public void testGetPrevEntry() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        IndexItem next = list.getLast();
        int count = testData.size() - 1;
        while (next != null) {
            assertTrue(next.equals(testData.get(count--)));
            next = list.getPrevEntry(next);
            assertTrue(next == null || !next.equals(root));
        }
    }

    /*
     * test method for
     * 'org.apache.activemq.kaha.impl.VMIndexLinkedList.remove(IndexItem)'
     */
    public void testRemoveIndexItem() throws IOException {
        for (int i = 0; i < testData.size(); i++) {
            addToList(list,testData.get(i));
        }
        for (int i = 0; i < testData.size(); i++) {
            list.remove(testData.get(i));
            assertTrue(list.size() == testData.size() - i - 1);
        }
    }
    
    public void testAddRemove() throws IOException {
        IndexItem a = createIndex(list,0);
        addToList(list, a);
        IndexItem b = createIndex(list,1);
        addToList(list, b);
        IndexItem c = createIndex(list,2);
        addToList(list, c);
        IndexItem d = createIndex(list,3);
        addToList(list, d);
        remove(list, d);
        assertTrue(list.getLast().equals(c));
        assertTrue(list.getNextEntry(b).equals(c));
        remove(list, b);
        assertTrue(list.getNextEntry(a).equals(c));
        assertTrue(list.getLast().equals(c));
        
    }
}

Other ActiveMQ examples (source code examples)

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