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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 examples;
17  
18  import java.io.StringWriter;
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.DumperOptions;
27  import org.yaml.snakeyaml.Yaml;
28  
29  public class DumpExampleTest extends TestCase {
30      public void testDump() {
31          Map<String, Object> data = new HashMap<String, Object>();
32          data.put("name", "Silenthand Olleander");
33          data.put("race", "Human");
34          data.put("traits", new String[] { "ONE_HAND", "ONE_EYE" });
35          Yaml yaml = new Yaml();
36          String output = yaml.dump(data);
37          assertTrue(output.contains("name: Silenthand Olleander"));
38          assertTrue(output.contains("race: Human"));
39          assertTrue(output.contains("traits: [ONE_HAND, ONE_EYE]"));
40      }
41  
42      public void testDumpWriter() {
43          Map<String, Object> data = new HashMap<String, Object>();
44          data.put("name", "Silenthand Olleander");
45          data.put("race", "Human");
46          data.put("traits", new String[] { "ONE_HAND", "ONE_EYE" });
47          Yaml yaml = new Yaml();
48          StringWriter writer = new StringWriter();
49          yaml.dump(data, writer);
50          assertTrue(writer.toString().contains("name: Silenthand Olleander"));
51          assertTrue(writer.toString().contains("race: Human"));
52          assertTrue(writer.toString().contains("traits: [ONE_HAND, ONE_EYE]"));
53      }
54  
55      public void testDumpMany() {
56          List<Integer> docs = new ArrayList<Integer>();
57          for (int i = 1; i < 4; i++) {
58              docs.add(i);
59          }
60          DumperOptions options = new DumperOptions();
61          options.setExplicitStart(true);
62          Yaml yaml = new Yaml(options);
63          String result = yaml.dumpAll(docs.iterator());
64          assertNotNull(result);
65          assertTrue(result.contains("--- 2"));
66      }
67  
68      public void testDumpCustomJavaClass() {
69          Hero hero = new Hero("Galain Ysseleg", -3, 2);
70          DumperOptions options = new DumperOptions();
71          options.setAllowReadOnlyProperties(true);
72          Yaml yaml = new Yaml(options);
73          String output = yaml.dump(hero);
74          assertEquals("!!examples.Hero {hp: -3, name: Galain Ysseleg, sp: 2}\n", output);
75      }
76  
77      public void testDumperOptions() {
78          List<Integer> data = new ArrayList<Integer>();
79          for (int i = 0; i < 50; i++) {
80              data.add(i);
81          }
82          Yaml yaml = new Yaml();
83          String output = yaml.dump(data);
84          assertTrue(output.contains("[0, 1, 2, 3, 4, 5, 6, 7, 8"));
85          //
86          DumperOptions options = new DumperOptions();
87          options.setWidth(50);
88          options.setIndent(4);
89          yaml = new Yaml(options);
90          output = yaml.dump(data);
91          assertTrue(output.contains("1, 2"));
92      }
93  
94      public void testDumperOptionsCanonical() {
95          List<Integer> data = new ArrayList<Integer>();
96          for (int i = 0; i < 5; i++) {
97              data.add(i);
98          }
99          DumperOptions options = new DumperOptions();
100         options.setCanonical(true);
101         Yaml yaml = new Yaml(options);
102         String output = yaml.dump(data);
103         assertTrue(output.contains("---"));
104         assertTrue(output.contains("!!seq ["));
105         assertTrue(output.contains("!!int \"3\","));
106     }
107 
108     public void testDumperOptionsFlowStyle() {
109         List<Integer> data = new ArrayList<Integer>();
110         for (int i = 0; i < 5; i++) {
111             data.add(i);
112         }
113         DumperOptions options = new DumperOptions();
114         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
115         Yaml yaml = new Yaml(options);
116         String output = yaml.dump(data);
117         assertTrue(output.contains("- 0\n"));
118         assertTrue(output.contains("- 1\n"));
119         assertTrue(output.contains("- 4\n"));
120     }
121 
122     public void testDumperOptionsStyle() {
123         List<Integer> data = new ArrayList<Integer>();
124         for (int i = 0; i < 5; i++) {
125             data.add(i);
126         }
127         DumperOptions options = new DumperOptions();
128         options.setDefaultScalarStyle(DumperOptions.ScalarStyle.DOUBLE_QUOTED);
129         Yaml yaml = new Yaml(options);
130         String output = yaml.dump(data);
131         assertTrue(output.contains("- !!int \"0\""));
132         assertTrue(output.contains("- !!int \"1\""));
133         assertTrue(output.contains("- !!int \"4\""));
134     }
135 }