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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 examples;
18  
19  import java.io.StringWriter;
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.DumperOptions;
28  import org.yaml.snakeyaml.Yaml;
29  
30  public class DumpExampleTest extends TestCase {
31      public void testDump() {
32          Map<String, Object> data = new HashMap<String, Object>();
33          data.put("name", "Silenthand Olleander");
34          data.put("race", "Human");
35          data.put("traits", new String[] { "ONE_HAND", "ONE_EYE" });
36          Yaml yaml = new Yaml();
37          String output = yaml.dump(data);
38          assertTrue(output.contains("name: Silenthand Olleander"));
39          assertTrue(output.contains("race: Human"));
40          assertTrue(output.contains("traits: [ONE_HAND, ONE_EYE]"));
41      }
42  
43      public void testDumpWriter() {
44          Map<String, Object> data = new HashMap<String, Object>();
45          data.put("name", "Silenthand Olleander");
46          data.put("race", "Human");
47          data.put("traits", new String[] { "ONE_HAND", "ONE_EYE" });
48          Yaml yaml = new Yaml();
49          StringWriter writer = new StringWriter();
50          yaml.dump(data, writer);
51          assertTrue(writer.toString().contains("name: Silenthand Olleander"));
52          assertTrue(writer.toString().contains("race: Human"));
53          assertTrue(writer.toString().contains("traits: [ONE_HAND, ONE_EYE]"));
54      }
55  
56      public void testDumpMany() {
57          List<Integer> docs = new ArrayList<Integer>();
58          for (int i = 1; i < 4; i++) {
59              docs.add(i);
60          }
61          DumperOptions options = new DumperOptions();
62          options.setExplicitStart(true);
63          Yaml yaml = new Yaml(options);
64          String result = yaml.dumpAll(docs.iterator());
65          assertNotNull(result);
66          assertTrue(result.contains("--- 2"));
67      }
68  
69      public void testDumpCustomJavaClass() {
70          Hero hero = new Hero("Galain Ysseleg", -3, 2);
71          DumperOptions options = new DumperOptions();
72          options.setAllowReadOnlyProperties(true);
73          Yaml yaml = new Yaml(options);
74          String output = yaml.dump(hero);
75          assertEquals("!!examples.Hero {hp: -3, name: Galain Ysseleg, sp: 2}\n", output);
76      }
77  
78      public void testDumperOptions() {
79          List<Integer> data = new ArrayList<Integer>();
80          for (int i = 0; i < 50; i++) {
81              data.add(i);
82          }
83          Yaml yaml = new Yaml();
84          String output = yaml.dump(data);
85          assertTrue(output.contains("[0, 1, 2, 3, 4, 5, 6, 7, 8"));
86          //
87          DumperOptions options = new DumperOptions();
88          options.setWidth(50);
89          options.setIndent(4);
90          yaml = new Yaml(options);
91          output = yaml.dump(data);
92          assertTrue(output.contains("1, 2"));
93      }
94  
95      public void testDumperOptionsCanonical() {
96          List<Integer> data = new ArrayList<Integer>();
97          for (int i = 0; i < 5; i++) {
98              data.add(i);
99          }
100         DumperOptions options = new DumperOptions();
101         options.setCanonical(true);
102         Yaml yaml = new Yaml(options);
103         String output = yaml.dump(data);
104         assertTrue(output.contains("---"));
105         assertTrue(output.contains("!!seq ["));
106         assertTrue(output.contains("!!int \"3\","));
107     }
108 
109     public void testDumperOptionsFlowStyle() {
110         List<Integer> data = new ArrayList<Integer>();
111         for (int i = 0; i < 5; i++) {
112             data.add(i);
113         }
114         DumperOptions options = new DumperOptions();
115         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
116         Yaml yaml = new Yaml(options);
117         String output = yaml.dump(data);
118         assertTrue(output.contains("- 0\n"));
119         assertTrue(output.contains("- 1\n"));
120         assertTrue(output.contains("- 4\n"));
121     }
122 
123     public void testDumperOptionsStyle() {
124         List<Integer> data = new ArrayList<Integer>();
125         for (int i = 0; i < 5; i++) {
126             data.add(i);
127         }
128         DumperOptions options = new DumperOptions();
129         options.setDefaultScalarStyle(DumperOptions.ScalarStyle.DOUBLE_QUOTED);
130         Yaml yaml = new Yaml(options);
131         String output = yaml.dump(data);
132         assertTrue(output.contains("- !!int \"0\""));
133         assertTrue(output.contains("- !!int \"1\""));
134         assertTrue(output.contains("- !!int \"4\""));
135     }
136 }