/*
* Copyright 2001-2004 The Apache Software Foundation
*
* Licensed 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.HashMap;
import java.util.Map;
import junit.framework.Test;
import junit.framework.TestSuite;
import org.apache.commons.collections.BidiMap;
import org.apache.commons.collections.MapIterator;
import org.apache.commons.collections.Unmodifiable;
import org.apache.commons.collections.bidimap.DualHashBidiMap;
/**
* Tests the UnmodifiableMapIterator.
*
* @version $Revision: 1.8 $ $Date: 2004/02/18 01:20:33 $
*
* @author Stephen Colebourne
*/
public class TestUnmodifiableMapIterator extends AbstractTestMapIterator {
public static Test suite() {
return new TestSuite(TestUnmodifiableMapIterator.class);
}
public TestUnmodifiableMapIterator(String testName) {
super(testName);
}
public MapIterator makeEmptyMapIterator() {
return UnmodifiableMapIterator.decorate(new DualHashBidiMap().mapIterator());
}
public MapIterator makeFullMapIterator() {
return UnmodifiableMapIterator.decorate(((BidiMap) getMap()).mapIterator());
}
public Map getMap() {
Map testMap = new DualHashBidiMap();
testMap.put("A", "a");
testMap.put("B", "b");
testMap.put("C", "c");
return testMap;
}
public Map getConfirmedMap() {
Map testMap = new HashMap();
testMap.put("A", "a");
testMap.put("B", "b");
testMap.put("C", "c");
return testMap;
}
public boolean supportsRemove() {
return false;
}
public boolean supportsSetValue() {
return false;
}
//-----------------------------------------------------------------------
public void testMapIterator() {
assertTrue(makeEmptyMapIterator() instanceof Unmodifiable);
}
public void testDecorateFactory() {
MapIterator it = makeFullMapIterator();
assertSame(it, UnmodifiableMapIterator.decorate(it));
it = ((BidiMap) getMap()).mapIterator() ;
assertTrue(it != UnmodifiableMapIterator.decorate(it));
try {
UnmodifiableMapIterator.decorate(null);
fail();
} catch (IllegalArgumentException ex) {}
}
}