///*
// * 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.collections4.keyvalue;
//
//import java.util.Map;
//
//import org.apache.commons.collections4.KeyValue;
//
///**
// * Test the DefaultMapEntry class.
// *
// * @version $Id$
// * @since 3.0
// */
//public class DefaultMapEntryTest<K, V> extends AbstractMapEntryTest<K, V> {
//
// //-----------------------------------------------------------------------
//
// /**
// * Make an instance of Map.Entry with the default (null) key and value.
// * Subclasses should override this method to return a Map.Entry
// * of the type being tested.
// */
// @Override
// public Map.Entry<K, V> makeMapEntry() {
// return new DefaultMapEntry<K, V>(null, null);
// }
//
// /**
// * Make an instance of Map.Entry with the specified key and value.
// * Subclasses should override this method to return a Map.Entry
// * of the type being tested.
// */
// @Override
// public Map.Entry<K, V> makeMapEntry(final K key, final V value) {
// return new DefaultMapEntry<K, V>(key, value);
// }
//
// //-----------------------------------------------------------------------
//
// /**
// * Subclasses should override this method.
// */
// @Override
// @SuppressWarnings("unchecked")
// public void testConstructors() {
// // 1. test key-value constructor
// final Map.Entry<K, V> entry = new DefaultMapEntry<K, V>((K) key, (V) value);
// assertSame(key, entry.getKey());
// assertSame(value, entry.getValue());
//
// // 2. test pair constructor
// final KeyValue<K, V> pair = new DefaultKeyValue<K, V>((K) key, (V) value);
// assertSame(key, pair.getKey());
// assertSame(value, pair.getValue());
//
// // 3. test copy constructor
// final Map.Entry<K, V> entry2 = new DefaultMapEntry<K, V>(entry);
// assertSame(key, entry2.getKey());
// assertSame(value, entry2.getValue());
//
// // test that the objects are independent
// entry.setValue(null);
// assertSame(value, entry2.getValue());
// }
//
// @Override
// @SuppressWarnings("unchecked")
// public void testSelfReferenceHandling() {
// final Map.Entry<K, V> entry = makeMapEntry();
//
// try {
// entry.setValue((V) entry);
// assertSame(entry, entry.getValue());
//
// } catch (final Exception e) {
// fail("This Map.Entry implementation supports value self-reference.");
// }
// }
//
//}