    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  package org.apache.commons.configuration;
    18
    19  import java.io.File;
    20
    21  import junit.framework.Test;
    22  import junit.framework.TestCase;
    23  import junit.framework.TestSuite;
    24
    25  import org.apache.commons.configuration.reloading.FileChangedReloadingStrategy;
    26  import org.apache.commons.configuration.tree.xpath.XPathExpressionEngine;
    27
    28  /***
    29   * Unit test for simple MultiConfigurationTest.
    30   */
    31  public class TestPatternSubtreeConfiguration extends TestCase
    32  {
    33      private static String CONFIG_FILE = "target/test-classes/testPatternSubtreeConfig.xml";
    34      private static String PATTERN = "BusinessClient[@name='${sys:Id}']";
    35      private XMLConfiguration conf;
    36
    37      /***
    38       * Create the test case
    39       *
    40       * @param testName name of the test case
    41       */
    42      public TestPatternSubtreeConfiguration( String testName )
    43      {
    44          super( testName );
    45      }
    46
    47      /***
    48       * @return the suite of tests being tested
    49       */
    50      public static Test suite() throws Exception
    51      {
    52          return new TestSuite(TestPatternSubtreeConfiguration.class );
    53      }
    54
    55      protected void setUp() throws Exception
    56      {
    57          conf = new XMLConfiguration();
    58          conf.setFile(new File(CONFIG_FILE));
    59          conf.load();
    60      }
    61
    62      /***
    63       * Rigourous Test :-)
    64       */
    65      public void testMultiConfiguration()
    66      {
    67          //set up a reloading strategy
    68          FileChangedReloadingStrategy strategy = new FileChangedReloadingStrategy();
    69          strategy.setRefreshDelay(10000);
    70
    71          PatternSubtreeConfigurationWrapper config = new PatternSubtreeConfigurationWrapper(this.conf, PATTERN);
    72          config.setReloadingStrategy(strategy);
    73          config.setExpressionEngine(new XPathExpressionEngine());
    74
    75          System.setProperty("Id", "1001");
    76          assertTrue(config.getInt("rowsPerPage") == 15);
    77
    78          System.setProperty("Id", "1002");
    79          assertTrue(config.getInt("rowsPerPage") == 25);
    80
    81          System.setProperty("Id", "1003");
    82          assertTrue(config.getInt("rowsPerPage") == 35);
    83      }
    84  }