/**
* Licensed to the Austrian Association for Software Tool Integration (AASTI)
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. The AASTI 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.openengsb.core.common;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.hamcrest.CoreMatchers.sameInstance;
import static org.junit.Assert.assertThat;
import org.apache.commons.collections.map.AbstractReferenceMap;
import org.apache.commons.collections.map.ReferenceMap;
import org.junit.Test;
public class WeakMapUT {
@Test
public void testReferenceMap_shouldWork() throws Exception {
ReferenceMap map = new ReferenceMap(AbstractReferenceMap.HARD, AbstractReferenceMap.WEAK);
Object referent = new Object();
map.put("42", referent);
assertThat(map.containsKey("42"), is(true));
assertThat(map.get("42"), sameInstance(referent));
referent = null;
System.gc();
assertThat(map.containsKey("42"), is(false));
assertThat(map.get("42"), nullValue());
}
}