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.pyyaml; 17 18 import java.io.File; 19 import java.io.FileInputStream; 20 import java.io.IOException; 21 import java.io.InputStream; 22 import java.io.StringWriter; 23 import java.util.ArrayList; 24 import java.util.Arrays; 25 import java.util.Iterator; 26 import java.util.List; 27 28 import org.yaml.snakeyaml.DumperOptions; 29 import org.yaml.snakeyaml.emitter.Emitter; 30 import org.yaml.snakeyaml.emitter.EventConstructor; 31 import org.yaml.snakeyaml.events.CollectionStartEvent; 32 import org.yaml.snakeyaml.events.Event; 33 import org.yaml.snakeyaml.events.MappingStartEvent; 34 import org.yaml.snakeyaml.events.NodeEvent; 35 import org.yaml.snakeyaml.events.ScalarEvent; 36 import org.yaml.snakeyaml.events.SequenceStartEvent; 37 import org.yaml.snakeyaml.parser.Parser; 38 import org.yaml.snakeyaml.parser.ParserImpl; 39 import org.yaml.snakeyaml.reader.StreamReader; 40 import org.yaml.snakeyaml.reader.UnicodeReader; 41 42 /** 43 * imported from PyYAML 44 */ 45 public class PyEmitterTest extends PyImportTest { 46 public void testEmitterOnData() { 47 _testEmitter(".data", false); 48 } 49 50 public void testEmitterOnCanonicalNormally() { 51 _testEmitter(".canonical", false); 52 } 53 54 public void testEmitterOnCanonicalCanonically() { 55 _testEmitter(".canonical", true); 56 } 57 58 private void _testEmitter(String mask, boolean canonical) { 59 File[] files = getStreamsByExtension(mask, true); 60 assertTrue("No test files found.", files.length > 0); 61 for (File file : files) { 62 // if (!file.getName().contains("spec-06-01.canonical")) { 63 // continue; 64 // } 65 try { 66 InputStream input = new FileInputStream(file); 67 List<Event> events = parse(input); 68 input.close(); 69 // 70 StringWriter stream = new StringWriter(); 71 DumperOptions options = new DumperOptions(); 72 options.setCanonical(canonical); 73 Emitter emitter = new Emitter(stream, options); 74 for (Event event : events) { 75 emitter.emit(event); 76 } 77 // 78 String data = stream.toString(); 79 List<Event> newEvents = new ArrayList<Event>(); 80 StreamReader reader = new StreamReader(data); 81 Parser parser = new ParserImpl(reader); 82 while (parser.peekEvent() != null) { 83 Event event = parser.getEvent(); 84 newEvents.add(event); 85 } 86 // check 87 assertEquals(events.size(), newEvents.size()); 88 Iterator<Event> iter1 = events.iterator(); 89 Iterator<Event> iter2 = newEvents.iterator(); 90 while (iter1.hasNext()) { 91 Event event = iter1.next(); 92 Event newEvent = iter2.next(); 93 assertEquals(event.getClass().getName(), newEvent.getClass().getName()); 94 if (event instanceof NodeEvent) { 95 NodeEvent e1 = (NodeEvent) event; 96 NodeEvent e2 = (NodeEvent) newEvent; 97 assertEquals(e1.getAnchor(), e2.getAnchor()); 98 } 99 if (event instanceof CollectionStartEvent) { 100 CollectionStartEvent e1 = (CollectionStartEvent) event; 101 CollectionStartEvent e2 = (CollectionStartEvent) newEvent; 102 assertEquals(e1.getTag(), e2.getTag()); 103 } 104 if (event instanceof ScalarEvent) { 105 ScalarEvent e1 = (ScalarEvent) event; 106 ScalarEvent e2 = (ScalarEvent) newEvent; 107 if (e1.getImplicit().bothFalse() && e2.getImplicit().bothFalse()) { 108 assertEquals(e1.getTag(), e2.getTag()); 109 } 110 assertEquals(e1.getValue(), e2.getValue()); 111 } 112 } 113 } catch (Exception e) { 114 System.out.println("Failed File: " + file); 115 // fail("Failed File: " + file + "; " + e.getMessage()); 116 throw new RuntimeException(e); 117 } 118 } 119 } 120 121 public void testEmitterStyles() { 122 File[] canonicalFiles = getStreamsByExtension(".canonical", false); 123 assertTrue("No test files found.", canonicalFiles.length > 0); 124 File[] dataFiles = getStreamsByExtension(".data", true); 125 assertTrue("No test files found.", dataFiles.length > 0); 126 List<File> allFiles = new ArrayList<File>(Arrays.asList(canonicalFiles)); 127 allFiles.addAll(Arrays.asList(dataFiles)); 128 for (File file : allFiles) { 129 try { 130 List<Event> events = new ArrayList<Event>(); 131 InputStream input = new FileInputStream(file); 132 StreamReader reader = new StreamReader(new UnicodeReader(input)); 133 Parser parser = new ParserImpl(reader); 134 while (parser.peekEvent() != null) { 135 Event event = parser.getEvent(); 136 events.add(event); 137 } 138 input.close(); 139 // 140 for (Boolean flowStyle : new Boolean[] { Boolean.FALSE, Boolean.TRUE }) { 141 for (DumperOptions.ScalarStyle style : DumperOptions.ScalarStyle.values()) { 142 List<Event> styledEvents = new ArrayList<Event>(); 143 for (Event event : events) { 144 if (event instanceof ScalarEvent) { 145 ScalarEvent scalar = (ScalarEvent) event; 146 event = new ScalarEvent(scalar.getAnchor(), scalar.getTag(), 147 scalar.getImplicit(), scalar.getValue(), 148 scalar.getStartMark(), scalar.getEndMark(), style.getChar()); 149 } else if (event instanceof SequenceStartEvent) { 150 SequenceStartEvent seqStart = (SequenceStartEvent) event; 151 event = new SequenceStartEvent(seqStart.getAnchor(), 152 seqStart.getTag(), seqStart.getImplicit(), 153 seqStart.getStartMark(), seqStart.getEndMark(), flowStyle); 154 } else if (event instanceof MappingStartEvent) { 155 MappingStartEvent mapStart = (MappingStartEvent) event; 156 event = new MappingStartEvent(mapStart.getAnchor(), 157 mapStart.getTag(), mapStart.getImplicit(), 158 mapStart.getStartMark(), mapStart.getEndMark(), flowStyle); 159 } 160 styledEvents.add(event); 161 } 162 // emit 163 String data = emit(styledEvents); 164 List<Event> newEvents = parse(data); 165 assertEquals("Events must not change. File: " + file, events.size(), 166 newEvents.size()); 167 Iterator<Event> oldIter = events.iterator(); 168 Iterator<Event> newIter = newEvents.iterator(); 169 while (oldIter.hasNext()) { 170 Event event = oldIter.next(); 171 Event newEvent = newIter.next(); 172 assertEquals(event.getClass(), newEvent.getClass()); 173 if (event instanceof NodeEvent) { 174 assertEquals(((NodeEvent) event).getAnchor(), 175 ((NodeEvent) newEvent).getAnchor()); 176 } 177 if (event instanceof CollectionStartEvent) { 178 assertEquals(((CollectionStartEvent) event).getTag(), 179 ((CollectionStartEvent) newEvent).getTag()); 180 } 181 if (event instanceof ScalarEvent) { 182 ScalarEvent scalarOld = (ScalarEvent) event; 183 ScalarEvent scalarNew = (ScalarEvent) newEvent; 184 if (scalarOld.getImplicit().bothFalse() 185 && scalarNew.getImplicit().bothFalse()) { 186 assertEquals(scalarOld.getTag(), scalarNew.getTag()); 187 } 188 assertEquals(scalarOld.getValue(), scalarNew.getValue()); 189 } 190 } 191 } 192 } 193 194 } catch (Exception e) { 195 System.out.println("Failed File: " + file); 196 // fail("Failed File: " + file + "; " + e.getMessage()); 197 throw new RuntimeException(e); 198 } 199 } 200 } 201 202 private String emit(List<Event> events) throws IOException { 203 StringWriter writer = new StringWriter(); 204 Emitter emitter = new Emitter(writer, new DumperOptions()); 205 for (Event event : events) { 206 emitter.emit(event); 207 } 208 return writer.toString(); 209 } 210 211 private List<Event> parse(String data) { 212 ParserImpl parser = new ParserImpl(new StreamReader(data)); 213 List<Event> newEvents = new ArrayList<Event>(); 214 while (parser.peekEvent() != null) { 215 newEvents.add(parser.getEvent()); 216 } 217 return newEvents; 218 } 219 220 @SuppressWarnings("unchecked") 221 public void testEmitterEvents() { 222 File[] files = getStreamsByExtension(".events", false); 223 assertTrue("No test files found.", files.length > 0); 224 for (File file : files) { 225 // if (!file.getName().contains("spec-06-01.canonical")) { 226 // continue; 227 // } 228 try { 229 List<Event> events = new ArrayList<Event>(); 230 String content = getResource(file.getName()); 231 events = (List<Event>) load(new EventConstructor(), content); 232 // 233 StringWriter stream = new StringWriter(); 234 Emitter emitter = new Emitter(stream, new DumperOptions()); 235 for (Event event : events) { 236 emitter.emit(event); 237 } 238 // 239 String data = stream.toString(); 240 List<Event> newEvents = new ArrayList<Event>(); 241 StreamReader reader = new StreamReader(data); 242 Parser parser = new ParserImpl(reader); 243 while (parser.peekEvent() != null) { 244 Event event = parser.getEvent(); 245 newEvents.add(event); 246 } 247 // check 248 assertEquals(events.size(), newEvents.size()); 249 Iterator<Event> iter1 = events.iterator(); 250 Iterator<Event> iter2 = newEvents.iterator(); 251 while (iter1.hasNext()) { 252 Event event = iter1.next(); 253 Event newEvent = iter2.next(); 254 assertEquals(event.getClass().getName(), newEvent.getClass().getName()); 255 if (event instanceof NodeEvent) { 256 NodeEvent e1 = (NodeEvent) event; 257 NodeEvent e2 = (NodeEvent) newEvent; 258 assertEquals(e1.getAnchor(), e2.getAnchor()); 259 } 260 if (event instanceof CollectionStartEvent) { 261 CollectionStartEvent e1 = (CollectionStartEvent) event; 262 CollectionStartEvent e2 = (CollectionStartEvent) newEvent; 263 assertEquals(e1.getTag(), e2.getTag()); 264 } 265 if (event instanceof ScalarEvent) { 266 ScalarEvent e1 = (ScalarEvent) event; 267 ScalarEvent e2 = (ScalarEvent) newEvent; 268 if (e1.getImplicit().canOmitTagInPlainScalar() == e2.getImplicit() 269 .canOmitTagInPlainScalar() 270 && e1.getImplicit().canOmitTagInNonPlainScalar() == e2 271 .getImplicit().canOmitTagInNonPlainScalar()) { 272 273 } else { 274 if ((e1.getTag() == null || e2.getTag() == null) 275 || e1.getTag().equals(e2.getTag())) { 276 } else { 277 System.out.println("tag1: " + e1.getTag()); 278 System.out.println("tag2: " + e2.getTag()); 279 fail("in file: " + file); 280 } 281 } 282 assertEquals(e1.getValue(), e2.getValue()); 283 } 284 } 285 } catch (Exception e) { 286 System.out.println("Failed File: " + file); 287 // fail("Failed File: " + file + "; " + e.getMessage()); 288 throw new RuntimeException(e); 289 } 290 } 291 } 292 } 293
