morgand 02/04/09 09:43:29
Added: collections/src/test/org/apache/commons/collections
TestUniqueFilterIterator.java
Log:
A FilterIterator that skips over Objects that have already been returned
Revision Changes Path
1.1
jakarta-commons/collections/src/test/org/apache/commons/collections/TestUniqueFilterIterator.java
Index: TestUniqueFilterIterator.java
===================================================================
/*
* $Header:
/home/cvs/jakarta-commons/collections/src/test/org/apache/commons/collections/TestUniqueFilterIterator.java,v
1.1 2002/04/09 16:43:29 morgand Exp $
* $Revision: 1.1 $
* $Date: 2002/04/09 16:43:29 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.collections;
import junit.framework.*;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
/**
* Tests the ArrayIterator to ensure that the next() method will actually
* perform the iteration rather than the hasNext() method.
* The code of this test was supplied by Mauricio S. Moura
*
* @author James Strachan
* @author Mauricio S. Moura
* @author Morgan Delagrange
* @version $Id: TestUniqueFilterIterator.java,v 1.1 2002/04/09 16:43:29 morgand Exp
$
*/
public class TestUniqueFilterIterator extends TestIterator {
protected String[] testArray = {
"One", "Two", "Three", "Four", "Five", "Six"
};
protected List list1 = null;
public static Test suite() {
return new TestSuite(TestUniqueFilterIterator.class);
}
public TestUniqueFilterIterator(String testName) {
super(testName);
}
public void setUp() {
list1 = new ArrayList();
list1.add("One");
list1.add("Two");
list1.add("Three");
list1.add("Two");
list1.add("One");
list1.add("Four");
list1.add("Five");
list1.add("Five");
list1.add("Six");
list1.add("Five");
}
public Iterator makeEmptyIterator() {
ArrayList list = new ArrayList();
return new UniqueFilterIterator(list.iterator());
}
public Iterator makeFullIterator() {
Iterator i = list1.iterator();
return new UniqueFilterIterator(i);
}
/**
* Return a new, empty {@link Object} to used for testing.
*/
public Object makeObject() {
return makeFullIterator();
}
public void testIterator() {
Iterator iter = (Iterator) makeFullIterator();
for ( int i = 0; i < testArray.length; i++ ) {
Object testValue = testArray[i];
Object iterValue = iter.next();
assertEquals( "Iteration value is correct", testValue, iterValue );
}
assertTrue("Iterator should now be empty", ! iter.hasNext() );
try {
Object testValue = iter.next();
} catch (Exception e) {
assertTrue("NoSuchElementException must be thrown",
e.getClass().equals((new
NoSuchElementException()).getClass()));
}
}
public void testRemove() {
Iterator iter = (Iterator) makeFullIterator();
try {
iter.remove();
fail("FilterIterator does not support the remove() method");
} catch (UnsupportedOperationException e) {
}
}
}
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