1   /*
2    * Copyright (C) 2013 The Guava Authors
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package com.google.common.util.concurrent;
18  
19  import com.google.common.annotations.GwtCompatible;
20  
21  import junit.framework.TestCase;
22  
23  /**
24   * Unit tests for {@link Runnables}.
25   *
26   * @author Olivier Pernet
27   */
28  @GwtCompatible
29  public class RunnablesTest extends TestCase {
30    public void testDoNothingRunnableIsSingleton() {
31      assertSame(Runnables.doNothing(), Runnables.doNothing());
32    }
33  }