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1   package org.apache.maven.shared.utils.logging;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import static org.hamcrest.CoreMatchers.not;
23  import static org.hamcrest.CoreMatchers.sameInstance;
24  import static org.junit.Assert.assertThat;
25  
26  import java.io.PrintStream;
27  
28  import org.junit.Test;
29  
30  public class MessageUtilsTest
31  {
32      @Test
33      public void testSystem()
34      {
35          PrintStream currentOut = System.out;
36          try
37          {
38              MessageUtils.systemInstall();
39              assertThat( System.out, not( sameInstance( currentOut ) ) );
40              MessageUtils.systemUninstall();
41              assertThat( System.out, sameInstance( currentOut ) );
42          }
43          finally
44          {
45              System.setOut( currentOut );
46          }
47      }
48  }