ConfigurationMergerTestCase


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87  package org.codehaus.loom.components.configuration.merger;
88  
89  import junit.framework.TestCase;
90  import org.codehaus.dna.impl.ConfigurationUtil;
91  import org.codehaus.dna.impl.DefaultConfiguration;
92  import org.codehaus.loom.components.configuration.merger.ConfigurationMerger;
93  import org.codehaus.loom.components.configuration.merger.ConfigurationSplitter;
94  
95  /**
96   * @author Peter Royal
97   */
98  public class ConfigurationMergerTestCase
99      extends TestCase
100 {
101     public void testAttributeOnlyMerge()
102         throws Exception  
103     {
104         final DefaultConfiguration result = new DefaultConfiguration( "a", "",
105                                                                       "" );
106         result.setAttribute( "a", "1" );
107 
108         final DefaultConfiguration base = new DefaultConfiguration( "a", "",
109                                                                     "" );
110         base.setAttribute( "a", "2" );
111 
112         final DefaultConfiguration layer =
113             new DefaultConfiguration( "a", "", "" );
114         layer.setAttribute( "a", "1" );
115 
116         assertTrue(
117             ConfigurationUtil.equals( result,
118                                       ConfigurationMerger.merge( layer, base ) ) );
119         assertTrue( ConfigurationUtil.equals( layer,
120                                               ConfigurationSplitter.split(
121                                                   result,
122                                                   base ) ) );
123     }
124 
125     public void testAddChild()
126         throws Exception  
127     {
128         final DefaultConfiguration result =
129             new DefaultConfiguration( "a", "", "" );
130         result.addChild( new DefaultConfiguration( "kid1", "", "" ) );
131         result.addChild( new DefaultConfiguration( "kid2", "", "" ) );
132 
133         final DefaultConfiguration base =
134             new DefaultConfiguration( "a", "", "" );
135         base.addChild( new DefaultConfiguration( "kid1", "", "" ) );
136 
137         final DefaultConfiguration layer = new DefaultConfiguration( "a", "",
138                                                                      "" );
139         layer.addChild( new DefaultConfiguration( "kid2", "", "" ) );
140         assertTrue(
141             ConfigurationUtil.equals( result,
142                                       ConfigurationMerger.merge( layer, base ) ) );
143         assertTrue( ConfigurationUtil.equals( layer,
144                                               ConfigurationSplitter.split(
145                                                   result,
146                                                   base ) ) );
147     }
148 
149     public void testOverrideChild()
150         throws Exception  
151     {
152         final DefaultConfiguration result = new DefaultConfiguration( "a", "",
153                                                                       "" );
154         final DefaultConfiguration rkid1 = new DefaultConfiguration( "kid1",
155                                                                      "",
156                                                                      "" );
157         rkid1.setAttribute( "test", "1" );
158         result.addChild( rkid1 );
159 
160         final DefaultConfiguration base = new DefaultConfiguration( "a", "",
161                                                                     "" );
162         final DefaultConfiguration bkid1 = new DefaultConfiguration( "kid1",
163                                                                      "",
164                                                                      "" );
165         bkid1.setAttribute( "test", "0" );
166         base.addChild( bkid1 );
167 
168         final DefaultConfiguration layer = new DefaultConfiguration( "a", "",
169                                                                      "" );
170         final DefaultConfiguration lkid1 = new DefaultConfiguration( "kid1",
171                                                                      "",
172                                                                      "" );
173         lkid1.setAttribute( "test", "1" );
174         layer.addChild( lkid1 );
175 
176         assertTrue( !ConfigurationUtil.equals( result,
177                                                ConfigurationMerger.merge(
178                                                    layer,
179                                                    base ) ) );
180 
181         lkid1.setAttribute( "excalibur-configuration:merge", "true" );
182 
183         assertTrue(
184             ConfigurationUtil.equals( result,
185                                       ConfigurationMerger.merge( layer, base ) ) );
186         assertTrue( ConfigurationUtil.equals( layer,
187                                               ConfigurationSplitter.split(
188                                                   result,
189                                                   base ) ) );
190     }
191 }
192
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