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      1 /**
      2  * Copyright (c) 2008, 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.types;
     17 
     18 import java.util.HashMap;
     19 import java.util.Map;
     20 
     21 import org.yaml.snakeyaml.DumperOptions;
     22 import org.yaml.snakeyaml.DumperOptions.FlowStyle;
     23 import org.yaml.snakeyaml.Yaml;
     24 import org.yaml.snakeyaml.nodes.Node;
     25 import org.yaml.snakeyaml.nodes.Tag;
     26 import org.yaml.snakeyaml.representer.Represent;
     27 import org.yaml.snakeyaml.representer.Representer;
     28 
     29 /**
     30  * @see <a href="http://yaml.org/type/bool.html"></a>
     31  */
     32 public class BoolTagTest extends AbstractTest {
     33     public void testBool() {
     34         assertEquals(Boolean.TRUE, getMapValue("canonical: true", "canonical"));
     35         assertEquals(Boolean.FALSE, getMapValue("answer: NO", "answer"));
     36         assertEquals(Boolean.TRUE, getMapValue("logical: True", "logical"));
     37         assertEquals(Boolean.TRUE, getMapValue("option: on", "option"));
     38     }
     39 
     40     public void testBoolCanonical() {
     41         assertEquals(Boolean.TRUE, getMapValue("canonical: Yes", "canonical"));
     42         assertEquals(Boolean.TRUE, getMapValue("canonical: yes", "canonical"));
     43         assertEquals(Boolean.TRUE, getMapValue("canonical: YES", "canonical"));
     44         assertEquals("yES", getMapValue("canonical: yES", "canonical"));
     45         assertEquals(Boolean.FALSE, getMapValue("canonical: No", "canonical"));
     46         assertEquals(Boolean.FALSE, getMapValue("canonical: NO", "canonical"));
     47         assertEquals(Boolean.FALSE, getMapValue("canonical: no", "canonical"));
     48         assertEquals(Boolean.FALSE, getMapValue("canonical: off", "canonical"));
     49         assertEquals(Boolean.FALSE, getMapValue("canonical: Off", "canonical"));
     50         assertEquals(Boolean.FALSE, getMapValue("canonical: OFF", "canonical"));
     51         assertEquals(Boolean.TRUE, getMapValue("canonical: ON", "canonical"));
     52         assertEquals(Boolean.TRUE, getMapValue("canonical: On", "canonical"));
     53         assertEquals(Boolean.TRUE, getMapValue("canonical: on", "canonical"));
     54         // it looks like it is against the specification but it is like in
     55         // PyYAML
     56         assertEquals("n", getMapValue("canonical: n", "canonical"));
     57         assertEquals("N", getMapValue("canonical: N", "canonical"));
     58         assertEquals("y", getMapValue("canonical: y", "canonical"));
     59         assertEquals("Y", getMapValue("canonical: Y", "canonical"));
     60     }
     61 
     62     public void testBoolShorthand() {
     63         assertEquals(Boolean.TRUE, getMapValue("boolean: !!bool true", "boolean"));
     64     }
     65 
     66     public void testBoolTag() {
     67         assertEquals(Boolean.TRUE,
     68                 getMapValue("boolean: !<tag:yaml.org,2002:bool> true", "boolean"));
     69     }
     70 
     71     public void testBoolOut() {
     72         Map<String, Boolean> map = new HashMap<String, Boolean>();
     73         map.put("boolean", Boolean.TRUE);
     74         String output = dump(map);
     75         assertTrue(output, output.contains("boolean: true"));
     76     }
     77 
     78     public void testBoolOutAsYes() {
     79         Yaml yaml = new Yaml(new BoolRepresenter("YES"));
     80         String output = yaml.dump(true);
     81         assertEquals("YES\n", output);
     82     }
     83 
     84     /**
     85      * test flow style
     86      */
     87     public void testBoolOutAsEmpty2() {
     88         Yaml yaml = new Yaml(new BoolRepresenter("on"));
     89         Map<String, Boolean> map = new HashMap<String, Boolean>();
     90         map.put("aaa", false);
     91         map.put("bbb", true);
     92         String output = yaml.dump(map);
     93         assertEquals("{aaa: false, bbb: on}\n", output);
     94     }
     95 
     96     /**
     97      * test block style
     98      */
     99     public void testBoolOutAsEmpty3() {
    100         DumperOptions options = new DumperOptions();
    101         options.setDefaultFlowStyle(FlowStyle.BLOCK);
    102         Yaml yaml = new Yaml(new BoolRepresenter("True"), options);
    103         Map<String, Boolean> map = new HashMap<String, Boolean>();
    104         map.put("aaa", false);
    105         map.put("bbb", true);
    106         String output = yaml.dump(map);
    107         assertEquals("aaa: false\nbbb: True\n", output);
    108     }
    109 
    110     private class BoolRepresenter extends Representer {
    111         private String value;
    112 
    113         public BoolRepresenter(String value) {
    114             super();
    115             this.value = value;
    116             this.representers.put(Boolean.class, new RepresentBool());
    117         }
    118 
    119         // possible values are here http://yaml.org/type/bool.html
    120         // y, Y, n, N should not be used
    121         private class RepresentBool implements Represent {
    122             public Node representData(Object data) {
    123                 String v;
    124                 if (Boolean.TRUE.equals(data)) {
    125                     v = value;
    126                 } else {
    127                     v = "false";
    128                 }
    129                 return representScalar(Tag.BOOL, v);
    130             }
    131         }
    132     }
    133 }
    134