/*
* 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.harmony.luni.tests.java.lang.ref;
import java.lang.ref.PhantomReference;
import java.lang.ref.ReferenceQueue;
public class PhantomReferenceTest extends junit.framework.TestCase {
static Boolean bool;
protected void doneSuite() {
bool = null;
}
/**
* @tests java.lang.ref.PhantomReference#get()
*/
public void test_get() {
ReferenceQueue rq = new ReferenceQueue();
bool = new Boolean(false);
PhantomReference pr = new PhantomReference(bool, rq);
assertNull("Same object returned.", pr.get());
}
/**
* @tests java.lang.ref.PhantomReference#PhantomReference(java.lang.Object,
* java.lang.ref.ReferenceQueue)
*/
public void test_ConstructorLjava_lang_ObjectLjava_lang_ref_ReferenceQueue() throws Exception {
ReferenceQueue rq = new ReferenceQueue();
bool = new Boolean(true);
PhantomReference pr = new PhantomReference(bool, rq);
// Allow the finalizer to run to potentially enqueue
Thread.sleep(1000);
assertTrue("Initialization failed.", !pr.isEnqueued());
// need a reference to bool so the jit does not optimize it away
assertTrue("should always pass", bool.booleanValue());
boolean exception = false;
try {
new PhantomReference(bool, null);
} catch (NullPointerException e) {
exception = true;
}
assertTrue("Should not throw NullPointerException", !exception);
}
protected void setUp() {
}
protected void tearDown() {
}
}