Commons Collections example source code file (TestBagUtils.java)

This example Commons Collections source code file (TestBagUtils.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

bag, bag, expecting, expecting, hashbag, illegalargumentexception, illegalargumentexception, predicatedbag, predicatedsortedbag, returned, returned, testbagutils, treebag, unmodifiablesortedbag

The Commons Collections TestBagUtils.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;

import junit.framework.Test;

import org.apache.commons.collections.bag.HashBag;
import org.apache.commons.collections.bag.PredicatedBag;
import org.apache.commons.collections.bag.PredicatedSortedBag;
import org.apache.commons.collections.bag.SynchronizedBag;
import org.apache.commons.collections.bag.SynchronizedSortedBag;
import org.apache.commons.collections.bag.TransformedBag;
import org.apache.commons.collections.bag.TransformedSortedBag;
import org.apache.commons.collections.bag.TreeBag;
import org.apache.commons.collections.bag.UnmodifiableBag;
import org.apache.commons.collections.bag.UnmodifiableSortedBag;

/**
 * Tests for BagUtils factory methods.
 * 
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 *
 * @author Phil Steitz
 */
public class TestBagUtils extends BulkTest {

    public TestBagUtils(String name) {
        super(name);
    }


    public static Test suite() {
        return BulkTest.makeSuite(TestBagUtils.class);
    }
    
    //----------------------------------------------------------------------

    protected Class stringClass = this.getName().getClass();
    protected Predicate truePredicate = PredicateUtils.truePredicate();
    protected Transformer nopTransformer = TransformerUtils.nopTransformer();
    
    //----------------------------------------------------------------------
    
    public void testSynchronizedBag() {
        Bag bag = BagUtils.synchronizedBag(new HashBag());
        assertTrue("Returned object should be a SynchronizedBag.",
            bag instanceof SynchronizedBag);
        try {
            bag = BagUtils.synchronizedBag(null);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
    public void testUnmodifiableBag() {
        Bag bag = BagUtils.unmodifiableBag(new HashBag());
        assertTrue("Returned object should be an UnmodifiableBag.",
            bag instanceof UnmodifiableBag);
        try {
            bag = BagUtils.unmodifiableBag(null);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
    public void testPredicatedBag() {
        Bag bag = BagUtils.predicatedBag(new HashBag(), truePredicate);
        assertTrue("Returned object should be a PredicatedBag.",
            bag instanceof PredicatedBag);
        try {
            bag = BagUtils.predicatedBag(null,truePredicate);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        } 
        try {
            bag = BagUtils.predicatedBag(new HashBag(), null);
            fail("Expecting IllegalArgumentException for null predicate.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
    public void testTypedBag() {
        Bag bag = BagUtils.typedBag(new HashBag(), stringClass);      
        assertTrue("Returned object should be a TypedBag.",
            bag instanceof PredicatedBag);
        try {
            bag = BagUtils.typedBag(null, stringClass);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        } 
        try {
            bag = BagUtils.typedBag(new HashBag(), null);
            fail("Expecting IllegalArgumentException for null type.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
     public void testTransformedBag() {
        Bag bag = BagUtils.transformedBag(new HashBag(), nopTransformer);      
        assertTrue("Returned object should be an TransformedBag.",
            bag instanceof TransformedBag);
        try {
            bag = BagUtils.transformedBag(null, nopTransformer);      
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        } 
        try {
            bag = BagUtils.transformedBag(new HashBag(), null);  
            fail("Expecting IllegalArgumentException for null transformer.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
     
    public void testSynchronizedSortedBag() {
        Bag bag = BagUtils.synchronizedSortedBag(new TreeBag());
        assertTrue("Returned object should be a SynchronizedSortedBag.",
            bag instanceof SynchronizedSortedBag);
        try {
            bag = BagUtils.synchronizedSortedBag(null);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
    public void testUnmodifiableSortedBag() {
        Bag bag = BagUtils.unmodifiableSortedBag(new TreeBag());
        assertTrue("Returned object should be an UnmodifiableSortedBag.",
            bag instanceof UnmodifiableSortedBag);
        try {
            bag = BagUtils.unmodifiableSortedBag(null);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
    public void testPredicatedSortedBag() {
        Bag bag = BagUtils.predicatedSortedBag(new TreeBag(), truePredicate);
        assertTrue("Returned object should be a PredicatedSortedBag.",
            bag instanceof PredicatedSortedBag);
        try {
            bag = BagUtils.predicatedSortedBag(null, truePredicate);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        } 
        try {
            bag = BagUtils.predicatedSortedBag(new TreeBag(), null);
            fail("Expecting IllegalArgumentException for null predicate.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
    public void testTypedSortedBag() {
        Bag bag = BagUtils.typedSortedBag(new TreeBag(), stringClass);      
        assertTrue("Returned object should be a TypedSortedBag.",
            bag instanceof PredicatedSortedBag);
        try {
            bag = BagUtils.typedSortedBag(null, stringClass);
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        } 
        try {
            bag = BagUtils.typedSortedBag(new TreeBag(), null);
            fail("Expecting IllegalArgumentException for null type.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
    
    public void testTransformedSortedBag() {
        Bag bag = BagUtils.transformedSortedBag(new TreeBag(), nopTransformer);      
        assertTrue("Returned object should be an TransformedSortedBag",
            bag instanceof TransformedSortedBag);
        try {
            bag = BagUtils.transformedSortedBag(null, nopTransformer);      
            fail("Expecting IllegalArgumentException for null bag.");
        } catch (IllegalArgumentException ex) {
            // expected
        } 
        try {
            bag = BagUtils.transformedSortedBag(new TreeBag(), null);  
            fail("Expecting IllegalArgumentException for null transformer.");
        } catch (IllegalArgumentException ex) {
            // expected
        }  
    }
}