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Commons Collections example source code file (AbstractTestOrderedBidiMap.java)

This example Commons Collections source code file (AbstractTestOrderedBidiMap.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

abstracttestbidimap, abstracttestorderedbidimap, iterator, map, mapiterator, nosuchelementexception, nullpointerexception, nullpointerexception, object, object, orderedbidimap, orderedbidimap, testbidiorderedmapiterator, testbidiorderedmapiterator, util

The Commons Collections AbstractTestOrderedBidiMap.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.bidimap;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;

import org.apache.commons.collections.BulkTest;
import org.apache.commons.collections.MapIterator;
import org.apache.commons.collections.OrderedBidiMap;
import org.apache.commons.collections.iterators.AbstractTestMapIterator;

/**
 * Abstract test class for {@link OrderedBidiMap} methods and contracts.
 * 
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * 
 * @author Matthew Hawthorne
 * @author Stephen Colebourne
 */
public abstract class AbstractTestOrderedBidiMap extends AbstractTestBidiMap {

    public AbstractTestOrderedBidiMap(String testName) {
        super(testName);
    }

    public AbstractTestOrderedBidiMap() {
        super();
    }

    //-----------------------------------------------------------------------
    public void testFirstKey() {
        resetEmpty();
        OrderedBidiMap bidi = (OrderedBidiMap) map;
        try {
            bidi.firstKey();
            fail();
        } catch (NoSuchElementException ex) {}
        
        resetFull();
        bidi = (OrderedBidiMap) map;
        Object confirmedFirst = confirmed.keySet().iterator().next();
        assertEquals(confirmedFirst, bidi.firstKey());
    }
    
    public void testLastKey() {
        resetEmpty();
        OrderedBidiMap bidi = (OrderedBidiMap) map;
        try {
            bidi.lastKey();
            fail();
        } catch (NoSuchElementException ex) {}
        
        resetFull();
        bidi = (OrderedBidiMap) map;
        Object confirmedLast = null;
        for (Iterator it = confirmed.keySet().iterator(); it.hasNext();) {
            confirmedLast = it.next();
        }
        assertEquals(confirmedLast, bidi.lastKey());
    }

    //-----------------------------------------------------------------------    
    public void testNextKey() {
        resetEmpty();
        OrderedBidiMap bidi = (OrderedBidiMap) map;
        assertEquals(null, bidi.nextKey(getOtherKeys()[0]));
        if (isAllowNullKey() == false) {
            try {
                assertEquals(null, bidi.nextKey(null)); // this is allowed too
            } catch (NullPointerException ex) {}
        } else {
            assertEquals(null, bidi.nextKey(null));
        }
        
        resetFull();
        bidi = (OrderedBidiMap) map;
        Iterator it = confirmed.keySet().iterator();
        Object confirmedLast = it.next();
        while (it.hasNext()) {
            Object confirmedObject = it.next();
            assertEquals(confirmedObject, bidi.nextKey(confirmedLast));
            confirmedLast = confirmedObject;
        }
        assertEquals(null, bidi.nextKey(confirmedLast));
        
        if (isAllowNullKey() == false) {
            try {
                bidi.nextKey(null);
                fail();
            } catch (NullPointerException ex) {}
        } else {
            assertEquals(null, bidi.nextKey(null));
        }
    }
    
    public void testPreviousKey() {
        resetEmpty();
        OrderedBidiMap bidi = (OrderedBidiMap) map;
        assertEquals(null, bidi.previousKey(getOtherKeys()[0]));
        if (isAllowNullKey() == false) {
            try {
                assertEquals(null, bidi.previousKey(null)); // this is allowed too
            } catch (NullPointerException ex) {}
        } else {
            assertEquals(null, bidi.previousKey(null));
        }
        
        resetFull();
        bidi = (OrderedBidiMap) map;
        List list = new ArrayList(confirmed.keySet());
        Collections.reverse(list);
        Iterator it = list.iterator();
        Object confirmedLast = it.next();
        while (it.hasNext()) {
            Object confirmedObject = it.next();
            assertEquals(confirmedObject, bidi.previousKey(confirmedLast));
            confirmedLast = confirmedObject;
        }
        assertEquals(null, bidi.previousKey(confirmedLast));
        
        if (isAllowNullKey() == false) {
            try {
                bidi.previousKey(null);
                fail();
            } catch (NullPointerException ex) {}
        } else {
            assertEquals(null, bidi.previousKey(null));
        }
    }
    
    //-----------------------------------------------------------------------
    public BulkTest bulkTestOrderedMapIterator() {
        return new TestBidiOrderedMapIterator();
    }
    
    public class TestBidiOrderedMapIterator extends AbstractTestMapIterator {
        public TestBidiOrderedMapIterator() {
            super("TestBidiOrderedMapIterator");
        }
        
        public Object[] addSetValues() {
            return AbstractTestOrderedBidiMap.this.getNewSampleValues();
        }
        
        public boolean supportsRemove() {
            return AbstractTestOrderedBidiMap.this.isRemoveSupported();
        }

        public boolean supportsSetValue() {
            return AbstractTestOrderedBidiMap.this.isSetValueSupported();
        }

        public MapIterator makeEmptyMapIterator() {
            resetEmpty();
            return ((OrderedBidiMap) AbstractTestOrderedBidiMap.this.map).orderedMapIterator();
        }

        public MapIterator makeFullMapIterator() {
            resetFull();
            return ((OrderedBidiMap) AbstractTestOrderedBidiMap.this.map).orderedMapIterator();
        }
        
        public Map getMap() {
            // assumes makeFullMapIterator() called first
            return AbstractTestOrderedBidiMap.this.map;
        }
        
        public Map getConfirmedMap() {
            // assumes makeFullMapIterator() called first
            return AbstractTestOrderedBidiMap.this.confirmed;
        }
        
        public void verify() {
            super.verify();
            AbstractTestOrderedBidiMap.this.verify();
        }
    }
    
}

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