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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;
     17 
     18 import java.util.ArrayList;
     19 import java.util.Arrays;
     20 import java.util.EnumMap;
     21 import java.util.LinkedHashMap;
     22 import java.util.List;
     23 import java.util.Map;
     24 
     25 import junit.framework.TestCase;
     26 
     27 import org.yaml.snakeyaml.constructor.Constructor;
     28 
     29 public class EnumTest extends TestCase {
     30 
     31     // Dumping
     32     public void testDumpEnum() {
     33         Yaml yaml = new Yaml();
     34         String output = yaml.dump(Suit.CLUBS);
     35         assertEquals("!!org.yaml.snakeyaml.Suit 'CLUBS'\n", output);
     36     }
     37 
     38     public void testDumpOverriddenToString() {
     39         Yaml yaml = new Yaml();
     40         String output = yaml.dump(DumperOptions.FlowStyle.BLOCK);
     41         assertEquals("!!org.yaml.snakeyaml.DumperOptions$FlowStyle 'BLOCK'\n", output);
     42     }
     43 
     44     public void testDumpEnumArray() {
     45         DumperOptions options = new DumperOptions();
     46         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
     47         Yaml yaml = new Yaml(options);
     48         String output = yaml.dump(Suit.values());
     49         assertEquals(
     50                 "- !!org.yaml.snakeyaml.Suit 'CLUBS'\n- !!org.yaml.snakeyaml.Suit 'DIAMONDS'\n- !!org.yaml.snakeyaml.Suit 'HEARTS'\n- !!org.yaml.snakeyaml.Suit 'SPADES'\n",
     51                 output);
     52     }
     53 
     54     public void testDumpEnumList() {
     55         DumperOptions options = new DumperOptions();
     56         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
     57         Yaml yaml = new Yaml(options);
     58         List<Suit> list = Arrays.asList(Suit.values());
     59         String output = yaml.dump(list);
     60         assertEquals(
     61                 "- !!org.yaml.snakeyaml.Suit 'CLUBS'\n- !!org.yaml.snakeyaml.Suit 'DIAMONDS'\n- !!org.yaml.snakeyaml.Suit 'HEARTS'\n- !!org.yaml.snakeyaml.Suit 'SPADES'\n",
     62                 output);
     63     }
     64 
     65     public void testDumpEnumListNoAnchor() {
     66         DumperOptions options = new DumperOptions();
     67         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
     68         Yaml yaml = new Yaml(options);
     69         List<Suit> list = new ArrayList<Suit>(3);
     70         list.add(Suit.CLUBS);
     71         list.add(Suit.DIAMONDS);
     72         list.add(Suit.CLUBS);
     73         String output = yaml.dump(list);
     74         assertEquals(
     75                 "- !!org.yaml.snakeyaml.Suit 'CLUBS'\n- !!org.yaml.snakeyaml.Suit 'DIAMONDS'\n- !!org.yaml.snakeyaml.Suit 'CLUBS'\n",
     76                 output);
     77     }
     78 
     79     public void testDumpEnumMap() {
     80         DumperOptions options = new DumperOptions();
     81         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
     82         Yaml yaml = new Yaml(options);
     83         Map<String, Suit> map = new LinkedHashMap<String, Suit>();
     84         map.put("c", Suit.CLUBS);
     85         map.put("d", Suit.DIAMONDS);
     86         String output = yaml.dump(map);
     87         assertEquals(
     88                 "c: !!org.yaml.snakeyaml.Suit 'CLUBS'\nd: !!org.yaml.snakeyaml.Suit 'DIAMONDS'\n",
     89                 output);
     90     }
     91 
     92     public void testDumpEnumMap2() {
     93         DumperOptions options = new DumperOptions();
     94         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
     95         Yaml yaml = new Yaml(options);
     96         Map<Suit, Integer> map = new EnumMap<Suit, Integer>(Suit.class);
     97         map.put(Suit.CLUBS, 0);
     98         map.put(Suit.DIAMONDS, 123);
     99         String output = yaml.dump(map);
    100         assertEquals(
    101                 "!!org.yaml.snakeyaml.Suit 'CLUBS': 0\n!!org.yaml.snakeyaml.Suit 'DIAMONDS': 123\n",
    102                 output);
    103     }
    104 
    105     public void testDumpEnumBean() {
    106         DumperOptions options = new DumperOptions();
    107         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
    108         Yaml yaml = new Yaml(options);
    109         EnumBean bean = new EnumBean();
    110         bean.setId(17);
    111         bean.setSuit(Suit.SPADES);
    112         LinkedHashMap<Suit, Integer> map = new LinkedHashMap<Suit, Integer>();
    113         map.put(Suit.CLUBS, 1);
    114         map.put(Suit.DIAMONDS, 2);
    115         bean.setMap(map);
    116         String output = yaml.dump(bean);
    117         assertEquals(
    118                 "!!org.yaml.snakeyaml.EnumBean\nid: 17\nmap:\n  CLUBS: 1\n  DIAMONDS: 2\nsuit: SPADES\n",
    119                 output);
    120     }
    121 
    122     // Loading
    123     public void testLoadEnum() {
    124         Yaml yaml = new Yaml();
    125         Suit suit = (Suit) yaml.load("!!org.yaml.snakeyaml.Suit 'CLUBS'\n");
    126         assertEquals(Suit.CLUBS, suit);
    127     }
    128 
    129     public void testLoadOverridenToString() {
    130         Yaml yaml = new Yaml();
    131         assertEquals(DumperOptions.FlowStyle.BLOCK,
    132                 yaml.load("!!org.yaml.snakeyaml.DumperOptions$FlowStyle 'BLOCK'\n"));
    133     }
    134 
    135     @SuppressWarnings("unchecked")
    136     public void testLoadEnumList() {
    137         Yaml yaml = new Yaml();
    138         List<Suit> list = (List<Suit>) yaml
    139                 .load("- !!org.yaml.snakeyaml.Suit 'CLUBS'\n- !!org.yaml.snakeyaml.Suit 'DIAMONDS'\n- !!org.yaml.snakeyaml.Suit 'HEARTS'\n- !!org.yaml.snakeyaml.Suit 'SPADES'");
    140         assertEquals(4, list.size());
    141         assertEquals(Suit.CLUBS, list.get(0));
    142         assertEquals(Suit.DIAMONDS, list.get(1));
    143         assertEquals(Suit.HEARTS, list.get(2));
    144         assertEquals(Suit.SPADES, list.get(3));
    145     }
    146 
    147     @SuppressWarnings("unchecked")
    148     public void testLoadEnumMap() {
    149         Yaml yaml = new Yaml();
    150         Map<Integer, Suit> map = (Map<Integer, Suit>) yaml
    151                 .load("1: !!org.yaml.snakeyaml.Suit 'HEARTS'\n2: !!org.yaml.snakeyaml.Suit 'DIAMONDS'");
    152         assertEquals(2, map.size());
    153         assertEquals(Suit.HEARTS, map.get(1));
    154         assertEquals(Suit.DIAMONDS, map.get(2));
    155     }
    156 
    157     public void testLoadEnumBean() {
    158         Yaml yaml = new Yaml();
    159         EnumBean bean = (EnumBean) yaml
    160                 .load("!!org.yaml.snakeyaml.EnumBean\nid: 174\nmap:\n  !!org.yaml.snakeyaml.Suit 'CLUBS': 1\n  !!org.yaml.snakeyaml.Suit 'DIAMONDS': 2\nsuit: CLUBS");
    161 
    162         LinkedHashMap<Suit, Integer> map = new LinkedHashMap<Suit, Integer>();
    163         map.put(Suit.CLUBS, 1);
    164         map.put(Suit.DIAMONDS, 2);
    165 
    166         assertEquals(Suit.CLUBS, bean.getSuit());
    167         assertEquals(174, bean.getId());
    168         assertEquals(map, bean.getMap());
    169     }
    170 
    171     public void testLoadEnumBean2() {
    172         Constructor c = new Constructor();
    173         TypeDescription td = new TypeDescription(EnumBean.class);
    174         td.putMapPropertyType("map", Suit.class, Object.class);
    175         c.addTypeDescription(td);
    176         Yaml yaml = new Yaml(c);
    177         EnumBean bean = (EnumBean) yaml
    178                 .load("!!org.yaml.snakeyaml.EnumBean\nid: 174\nmap:\n  CLUBS: 1\n  DIAMONDS: 2\nsuit: CLUBS");
    179 
    180         LinkedHashMap<Suit, Integer> map = new LinkedHashMap<Suit, Integer>();
    181         map.put(Suit.CLUBS, 1);
    182         map.put(Suit.DIAMONDS, 2);
    183 
    184         assertEquals(Suit.CLUBS, bean.getSuit());
    185         assertEquals(174, bean.getId());
    186         assertEquals(map, bean.getMap());
    187     }
    188 
    189     public void testLoadWrongEnum() {
    190         Yaml yaml = new Yaml();
    191         try {
    192             yaml.load("1: !!org.yaml.snakeyaml.Suit 'HEARTS'\n2: !!org.yaml.snakeyaml.Suit 'KOSYR'");
    193             fail("KOSYR is not Suit");
    194         } catch (Exception e) {
    195             assertTrue("KOSYR must be reported",
    196                     e.getMessage().contains("Unable to find enum value 'KOSYR' for enum"));
    197         }
    198     }
    199 }
    200