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1   /**
2    * Copyright (c) 2008-2012, 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  package org.yaml.snakeyaml.types;
17  
18  import java.util.List;
19  import java.util.Map;
20  
21  import org.yaml.snakeyaml.YamlDocument;
22  
23  /**
24   * @see http://yaml.org/type/merge.html
25   */
26  public class MergeTagTest extends AbstractTest {
27  
28      @SuppressWarnings("unchecked")
29      public void testMerge() {
30          YamlDocument document = new YamlDocument("types/merge.yaml");
31          List<Object> list = (List<Object>) document.getNativeData();
32          assertEquals(8, list.size());
33          Map<Object, Object> center = (Map<Object, Object>) list.get(0);
34          assertEquals(2, center.size());
35          assertEquals(new Integer(1), center.get("x"));
36          assertEquals(new Integer(2), center.get("y"));
37          //
38          Map<Object, Object> left = (Map<Object, Object>) list.get(1);
39          assertEquals(2, left.size());
40          assertEquals(left.get("x").getClass().toString(), new Integer(0), left.get("x"));
41          assertEquals(new Integer(2), left.get("y"));
42          //
43          Map<Object, Object> big = (Map<Object, Object>) list.get(2);
44          assertEquals(1, big.size());
45          assertEquals(new Integer(10), big.get("r"));
46          //
47          Map<Object, Object> small = (Map<Object, Object>) list.get(3);
48          assertEquals(1, small.size());
49          assertEquals(new Integer(1), small.get("r"));
50          // Explicit keys
51          Map<Object, Object> explicit = (Map<Object, Object>) list.get(4);
52          assertEquals(4, explicit.size());
53          assertEquals(new Integer(1), explicit.get("x"));
54          assertEquals(new Integer(2), explicit.get("y"));
55          assertEquals(new Integer(10), explicit.get("r"));
56          assertEquals("center/big", explicit.get("label"));
57          // Merge one map
58          Map<Object, Object> merged1 = (Map<Object, Object>) list.get(5);
59          assertEquals(explicit, merged1);
60          assertNotSame(explicit, merged1);
61          // Merge multiple maps
62          Map<Object, Object> merged2 = (Map<Object, Object>) list.get(6);
63          assertEquals(explicit, merged2);
64          assertNotSame(explicit, merged2);
65          // Override
66          Map<Object, Object> merged3 = (Map<Object, Object>) list.get(7);
67          assertEquals(explicit, merged3);
68          assertNotSame(explicit, merged3);
69      }
70  }