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Java example source code file (ForwardingObjectTest.java)

This example Java source code file (ForwardingObjectTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

forwardingobject, forwardingobjecttest, object, override, set, testcase, util

The ForwardingObjectTest.java Java example source code

/*
 * Copyright (C) 2007 The Guava Authors
 *
 * Licensed 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 com.google.common.collect;

import junit.framework.TestCase;

import java.util.Set;

/**
 * Tests for {@code ForwardingObject}.
 *
 * @author Mike Bostock
 */
public class ForwardingObjectTest extends TestCase {

  public void testEqualsReflexive() {
    final Object delegate = new Object();
    ForwardingObject forward = new ForwardingObject() {
      @Override protected Object delegate() {
        return delegate;
      }
    };
    assertTrue(forward.equals(forward));
  }

  public void testEqualsSymmetric() {
    final Set<String> delegate = Sets.newHashSet("foo");
    ForwardingObject forward = new ForwardingObject() {
      @Override protected Object delegate() {
        return delegate;
      }
    };
    assertEquals(forward.equals(delegate), delegate.equals(forward));
  }
}

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