opendaylight/md-sal/cds-access-api/src/test/java/org/opendaylight/controller/cluster/access/concepts/AbstractIdentifierTest.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.access.concepts;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertFalse;
  12 import static org.junit.Assert.assertTrue;
  13
  14 import java.io.ByteArrayInputStream;
  15 import java.io.ByteArrayOutputStream;
  16 import java.io.IOException;
  17 import java.io.ObjectInputStream;
  18 import java.io.ObjectOutputStream;
  19 import org.junit.Test;
  20 import org.opendaylight.yangtools.concepts.Identifier;
  21
  22 public abstract class AbstractIdentifierTest<T extends Identifier> {
  23     abstract T object();
  24
  25     abstract T differentObject();
  26
  27     abstract T equalObject();
  28
  29     @Test
  30     public final void testEquals() {
  31         assertTrue(object().equals(object()));
  32         assertTrue(object().equals(equalObject()));
  33         assertFalse(object().equals(null));
  34         assertFalse(object().equals("dummy"));
  35         assertFalse(object().equals(differentObject()));
  36     }
  37
  38     @Test
  39     public final void testHashCode() {
  40         assertEquals(object().hashCode(), equalObject().hashCode());
  41     }
  42
  43     @SuppressWarnings("unchecked")
  44     private static <T> T copy(T obj) throws IOException, ClassNotFoundException {
  45         final ByteArrayOutputStream bos = new ByteArrayOutputStream();
  46         try (ObjectOutputStream oos = new ObjectOutputStream(bos)) {
  47             oos.writeObject(obj);
  48         }
  49
  50         try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray()))) {
  51             return (T) ois.readObject();
  52         }
  53     }
  54
  55     @Test
  56     public final void testSerialization() throws Exception {
  57         assertTrue(object().equals(copy(object())));
  58         assertTrue(object().equals(copy(equalObject())));
  59         assertFalse(differentObject().equals(copy(object())));
  60     }
  61 }