View Javadoc

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.lowlevel;
17  
18  import java.io.StringReader;
19  import java.util.ArrayList;
20  import java.util.HashMap;
21  import java.util.List;
22  import java.util.Map;
23  
24  import junit.framework.TestCase;
25  
26  import org.yaml.snakeyaml.Yaml;
27  import org.yaml.snakeyaml.events.Event;
28  import org.yaml.snakeyaml.events.ScalarEvent;
29  import org.yaml.snakeyaml.nodes.Node;
30  
31  public class LowLevelApiTest extends TestCase {
32  
33      public void testLowLevel() {
34          List<Object> list = new ArrayList<Object>();
35          list.add(1);
36          list.add("abc");
37          Map<String, String> map = new HashMap<String, String>();
38          map.put("name", "Tolstoy");
39          map.put("book", "War and People");
40          list.add(map);
41          Yaml yaml = new Yaml();
42          String etalon = yaml.dump(list);
43          // System.out.println(etalon);
44          //
45          Node node = yaml.represent(list);
46          // System.out.println(node);
47          assertEquals(
48                  "Representation tree from an object and from its YAML document must be the same.",
49                  yaml.compose(new StringReader(etalon)).toString(), node.toString());
50          //
51          List<Event> events = yaml.serialize(node);
52          int i = 0;
53          for (Event etalonEvent : yaml.parse(new StringReader(etalon))) {
54              Event ev1 = events.get(i++);
55              assertEquals(etalonEvent.getClass(), ev1.getClass());
56              if (etalonEvent instanceof ScalarEvent) {
57                  ScalarEvent scalar1 = (ScalarEvent) etalonEvent;
58                  ScalarEvent scalar2 = (ScalarEvent) ev1;
59                  assertEquals(scalar1.getAnchor(), scalar2.getAnchor());
60                  assertEquals(scalar1.getValue(), scalar2.getValue());
61              }
62          }
63          assertEquals(i, events.size());
64      }
65  }