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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.serializer;
17  
18  import java.io.IOException;
19  import java.io.StringWriter;
20  import java.text.NumberFormat;
21  
22  import junit.framework.TestCase;
23  
24  import org.yaml.snakeyaml.DumperOptions;
25  import org.yaml.snakeyaml.emitter.Emitter;
26  import org.yaml.snakeyaml.nodes.ScalarNode;
27  import org.yaml.snakeyaml.nodes.Tag;
28  import org.yaml.snakeyaml.resolver.Resolver;
29  
30  public class SerializerTest extends TestCase {
31      private Serializer serializer;
32  
33      @Override
34      protected void setUp() {
35          DumperOptions config = new DumperOptions();
36          StringWriter writer = new StringWriter();
37          serializer = new Serializer(new Emitter(writer, config), new Resolver(), config, null);
38      }
39  
40      public void testSerializerIsAlreadyOpened() throws IOException {
41          serializer.open();
42          try {
43              serializer.open();
44              fail();
45          } catch (RuntimeException e) {
46              assertEquals("serializer is already opened", e.getMessage());
47          }
48      }
49  
50      public void testSerializerIsClosed1() throws IOException {
51          serializer.open();
52          serializer.close();
53          try {
54              serializer.open();
55              fail();
56          } catch (RuntimeException e) {
57              assertEquals("serializer is closed", e.getMessage());
58          }
59      }
60  
61      public void testSerializerIsClosed2() throws IOException {
62          serializer.open();
63          serializer.close();
64          try {
65              serializer.serialize(new ScalarNode(new Tag("!foo"), "bar", null, null, (char) 0));
66              fail();
67          } catch (RuntimeException e) {
68              assertEquals("serializer is closed", e.getMessage());
69          }
70      }
71  
72      public void testSerializerIsClosed3() throws IOException {
73          serializer.open();
74          serializer.close();
75          serializer.close();// no problem to close twice
76      }
77  
78      public void testSerializerIsNotOpened1() throws IOException {
79          try {
80              serializer.close();
81              fail();
82          } catch (RuntimeException e) {
83              assertEquals("serializer is not opened", e.getMessage());
84          }
85      }
86  
87      public void testSerializerIsNotOpened2() throws IOException {
88          try {
89              serializer.serialize(new ScalarNode(new Tag("!foo"), "bar", null, null, (char) 0));
90              fail();
91          } catch (RuntimeException e) {
92              assertEquals("serializer is not opened", e.getMessage());
93          }
94      }
95  
96      public void testGenerateAnchor() {
97          NumberFormat format = NumberFormat.getNumberInstance();
98          format.setMinimumIntegerDigits(3);
99          String anchor = format.format(3L);
100         assertEquals("003", anchor);
101     }
102 }