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1   /**
2    * Copyright (c) 2008-2011, http://www.snakeyaml.org
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.yaml.snakeyaml.issues.issue60;
18  
19  import java.beans.IntrospectionException;
20  import java.util.Arrays;
21  import java.util.Collections;
22  import java.util.LinkedHashSet;
23  import java.util.Set;
24  import java.util.TreeSet;
25  
26  import junit.framework.TestCase;
27  
28  import org.yaml.snakeyaml.Util;
29  import org.yaml.snakeyaml.Yaml;
30  import org.yaml.snakeyaml.introspector.BeanAccess;
31  import org.yaml.snakeyaml.introspector.Property;
32  import org.yaml.snakeyaml.introspector.PropertyUtils;
33  import org.yaml.snakeyaml.representer.Representer;
34  
35  //issue 59
36  public class CustomOrderTest extends TestCase {
37  
38      public void testReversedOrder() {
39          Representer repr = new Representer();
40          repr.setPropertyUtils(new ReversedPropertyUtils());
41          Yaml yaml = new Yaml(repr);
42          String output = yaml.dump(getBean());
43          // System.out.println(output);
44          assertEquals(Util.getLocalResource("issues/issue59-1.yaml"), output);
45      }
46  
47      private class ReversedPropertyUtils extends PropertyUtils {
48          @Override
49          protected Set<Property> createPropertySet(Class<? extends Object> type, BeanAccess bAccess)
50                  throws IntrospectionException {
51              Set<Property> result = new TreeSet<Property>(Collections.reverseOrder());
52              result.addAll(super.createPropertySet(type, bAccess));
53              return result;
54          }
55      }
56  
57      public void testUnsorted() {
58          Representer repr = new Representer();
59          repr.setPropertyUtils(new UnsortedPropertyUtils());
60          Yaml yaml = new Yaml(repr);
61          String output = yaml.dump(getBean());
62          // System.out.println(output);
63          assertEquals(Util.getLocalResource("issues/issue59-2.yaml"), output);
64      }
65  
66      private class UnsortedPropertyUtils extends PropertyUtils {
67          @Override
68          protected Set<Property> createPropertySet(Class<? extends Object> type, BeanAccess bAccess)
69                  throws IntrospectionException {
70              Set<Property> result = new LinkedHashSet<Property>(getPropertiesMap(type,
71                      BeanAccess.FIELD).values());
72              result.remove(result.iterator().next());// drop 'listInt' property
73              return result;
74          }
75      }
76  
77      private SkipBean getBean() {
78          SkipBean bean = new SkipBean();
79          bean.setText("foo");
80          bean.setListDate(null);
81          bean.setListInt(Arrays.asList(new Integer[] { null, 1, 2, 3 }));
82          bean.setListStr(Arrays.asList(new String[] { "bar", null, "foo", null }));
83          return bean;
84      }
85  }