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.betwixt.expression;
18  
19  import junit.framework.TestCase;
20  
21  import org.apache.commons.betwixt.Options;
22  
23  public class TestContextOptions extends TestCase {
24  
25      
26      private static final String OPTION_NAME_ONE = "Option1";
27      private static final String OPTION_NAME_TWO = "Option2";
28      private static final String OPTION_NAME_THREE = "Option3";
29      private static final String OPTION_NAME_FOUR = "Option4";
30      private static final String ALPHA = "ALPHA";
31      private static final String BETA = "BETA";
32      private static final String GAMMA = "GAMMA";
33      
34      public void testOptionInheritance() throws Exception {
35          
36          Options optionsAlpha = new Options();
37          optionsAlpha.addOption(OPTION_NAME_TWO, ALPHA);
38          optionsAlpha.addOption(OPTION_NAME_THREE, ALPHA);
39          optionsAlpha.addOption(OPTION_NAME_FOUR, ALPHA);
40          Options optionsBeta = new Options();
41          optionsBeta.addOption(OPTION_NAME_TWO, BETA);
42          optionsBeta.addOption(OPTION_NAME_THREE, BETA);
43          Options optionsGamma = new Options();
44          optionsGamma.addOption(OPTION_NAME_TWO, GAMMA);
45          
46          Context context = new Context();
47          context.pushOptions(optionsAlpha);
48          context.pushOptions(optionsBeta);
49          context.pushOptions(optionsGamma);
50          
51          assertNull("Null when no option set", context.getInheritedOption(OPTION_NAME_ONE));
52          assertEquals("Return first value when that is set", GAMMA, context.getInheritedOption(OPTION_NAME_TWO));
53          assertEquals("Return first value that is set", BETA, context.getInheritedOption(OPTION_NAME_THREE));
54          assertEquals("Return first value that is set", ALPHA, context.getInheritedOption(OPTION_NAME_FOUR));
55          
56      }
57  }