1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.configuration.reloading;
19  
20  import java.io.File;
21  import java.io.FileWriter;
22  
23  import org.apache.commons.configuration.PropertiesConfiguration;
24  
25  import junit.framework.TestCase;
26  
27  /***
28   * Test case for the ManagedReloadingStrategy class.
29   *
30   * @author Nicolas De loof
31   */
32  public class TestManagedReloadingStrategy extends TestCase
33  {
34  
35      public void testManagedRefresh() throws Exception
36      {
37          File file = new File("target/testReload.properties");
38          if (file.exists())
39          {
40              file.delete();
41          }
42          // create the configuration file
43          FileWriter out = new FileWriter(file);
44          out.write("string=value1");
45          out.flush();
46          out.close();
47  
48          // load the configuration
49          PropertiesConfiguration config = new PropertiesConfiguration("target/testReload.properties");
50          ManagedReloadingStrategy strategy = new ManagedReloadingStrategy();
51          config.setReloadingStrategy(strategy);
52          assertEquals("Initial value", "value1", config.getString("string"));
53  
54          // change the file
55          out = new FileWriter(file);
56          out.write("string=value2");
57          out.flush();
58          out.close();
59  
60          // test the automatic reloading
61          assertEquals("No automatic reloading", "value1", config.getString("string"));
62          strategy.refresh();
63          assertEquals("Modified value with enabled reloading", "value2", config.getString("string"));
64      }
65  
66  }