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 import java.io.ByteArrayInputStream;
  14 import java.io.ByteArrayOutputStream;
  15 import java.io.IOException;
  16 import java.io.ObjectInputStream;
  17 import java.io.ObjectOutputStream;
  18 import org.junit.Test;
  19 import org.opendaylight.yangtools.concepts.Identifier;
  20
  21 public abstract class AbstractIdentifierTest<T extends Identifier> {
  22     abstract T object();
  23     abstract T differentObject();
  24     abstract T equalObject();
  25
  26     @Test
  27     public final void testEquals() {
  28         assertTrue(object().equals(object()));
  29         assertTrue(object().equals(equalObject()));
  30         assertFalse(object().equals(null));
  31         assertFalse(object().equals("dummy"));
  32         assertFalse(object().equals(differentObject()));
  33     }
  34
  35     @Test
  36     public final void testHashCode() {
  37         assertEquals(object().hashCode(), equalObject().hashCode());
  38     }
  39
  40     @SuppressWarnings("unchecked")
  41     private static <T> T copy(T o) throws IOException, ClassNotFoundException {
  42         final ByteArrayOutputStream bos = new ByteArrayOutputStream();
  43         try (ObjectOutputStream oos = new ObjectOutputStream(bos)) {
  44             oos.writeObject(o);
  45         }
  46
  47         try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray()))) {
  48             return (T) ois.readObject();
  49         }
  50     }
  51
  52     @Test
  53     public final void testSerialization() throws Exception {
  54         assertTrue(object().equals(copy(object())));
  55         assertTrue(object().equals(copy(equalObject())));
  56         assertFalse(differentObject().equals(copy(object())));
  57     }
  58 }