/*
* 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.iterators;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import junit.framework.Test;
import junit.framework.TestSuite;
/**
* Tests the UniqueFilterIterator class.
*
* @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
*
* @author James Strachan
* @author Mauricio S. Moura
* @author Morgan Delagrange
* @author Stephen Colebourne
*/
public class TestUniqueFilterIterator extends AbstractTestIterator {
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);
}
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()));
}
}
}