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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.lowlevel;
18  
19  import java.io.StringReader;
20  import java.util.ArrayList;
21  import java.util.HashMap;
22  import java.util.List;
23  import java.util.Map;
24  
25  import junit.framework.TestCase;
26  
27  import org.yaml.snakeyaml.Yaml;
28  import org.yaml.snakeyaml.events.Event;
29  import org.yaml.snakeyaml.events.ScalarEvent;
30  import org.yaml.snakeyaml.nodes.Node;
31  
32  public class LowLevelApiTest extends TestCase {
33  
34      public void testLowLevel() {
35          List<Object> list = new ArrayList<Object>();
36          list.add(1);
37          list.add("abc");
38          Map<String, String> map = new HashMap<String, String>();
39          map.put("name", "Tolstoy");
40          map.put("book", "War and People");
41          list.add(map);
42          Yaml yaml = new Yaml();
43          String etalon = yaml.dump(list);
44          // System.out.println(etalon);
45          //
46          Node node = yaml.represent(list);
47          // System.out.println(node);
48          assertEquals(
49                  "Representation tree from an object and from its YAML document must be the same.",
50                  yaml.compose(new StringReader(etalon)).toString(), node.toString());
51          //
52          List<Event> events = yaml.serialize(node);
53          int i = 0;
54          for (Event etalonEvent : yaml.parse(new StringReader(etalon))) {
55              Event ev1 = events.get(i++);
56              assertEquals(etalonEvent.getClass(), ev1.getClass());
57              if (etalonEvent instanceof ScalarEvent) {
58                  ScalarEvent scalar1 = (ScalarEvent) etalonEvent;
59                  ScalarEvent scalar2 = (ScalarEvent) ev1;
60                  assertEquals(scalar1.getAnchor(), scalar2.getAnchor());
61                  assertEquals(scalar1.getValue(), scalar2.getValue());
62              }
63          }
64          assertEquals(i, events.size());
65      }
66  }