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1
21
22 package nu.xom.tests;
23
24 import java.io.File  ;
25 import java.io.IOException ;
26 import nu.xom.ParsingException;
27
28 import nu.xom.Attribute;
29 import nu.xom.Builder;
30 import nu.xom.Comment;
31 import nu.xom.DocType;
32 import nu.xom.Document;
33 import nu.xom.Element;
34 import nu.xom.Node;
35 import nu.xom.NodeFactory;
36 import nu.xom.Nodes;
37 import nu.xom.ProcessingInstruction;
38 import nu.xom.Text;
39 import nu.xom.ValidityException;
40 import nu.xom.XMLException;
41
42
52 public class NodeFactoryTest extends XOMTestCase {
53
54
55 private File data = new File ("data");
56
57
58 public NodeFactoryTest(String name) {
59 super(name);
60 }
61
62
63 protected void setUp() {
64 numNodesInExternalDTDSubset = 0;
65 }
66
67
68 public void testSkippingComment()
69 throws IOException , ParsingException {
70
71 String data = "<a>1<!--tetetwkfjkl-->8</a>";
72 Builder builder = new Builder(new CommentFilter());
73 Document doc = builder.build(data, "http://www.example.org/");
74 Element root = doc.getRootElement();
75 assertEquals("Skipped comment interrupted text node",
76 2, root.getChildCount());
77 assertEquals("18", doc.getValue());
78 Node first = root.getChild(0);
79 assertEquals(first.getValue(), "1");
80 Node second = root.getChild(1);
81 assertEquals(second.getValue(), "8");
82
83 }
84
85
86 static class CommentFilter extends NodeFactory {
87
88 public Nodes makeComment(String data) {
89 return new Nodes();
90 }
91
92 }
93
94
95 public void testCantAddOneElementMultipleTimes()
96 throws IOException , ParsingException {
97
98 String data = "<a><b>18</b></a>";
99 Builder builder = new Builder(new SingleElementFactory());
100 try {
101 builder.build(data, "http://www.example.org/");
102 fail("Allowed one element in several places");
103 }
104 catch (ParsingException success) {
105 assertNotNull(success.getMessage());
106 }
107
108 }
109
110
111 public void testCantAddOneAttributeMultipleTimes()
112 throws IOException , ParsingException {
113
114 String data = "<a test=\"value\" name=\"data\"></a>";
115 Builder builder = new Builder(new SingleAttributeFactory());
116 try {
117 builder.build(data, "http://www.example.org/");
118 fail("Allowed one attribute twice");
119 }
120 catch (ParsingException success) {
121 assertNotNull(success.getMessage());
122 }
123
124 }
125
126
127 private static class SingleElementFactory extends NodeFactory {
128
129 private Element test = new Element("test");
130
131 public Element startMakingElement(String name, String namespace) {
132 return test;
133 }
134
135 }
136
137
138 private static class SingleAttributeFactory extends NodeFactory {
139
140 private Attribute test = new Attribute("limit", "none");
141
142 public Nodes makeAttribute(String name, String URI,
143 String value, Attribute.Type type) {
144 return new Nodes(test);
145 }
146
147 }
148
149
150 public void testChangingElementName()
151 throws IOException , ParsingException {
152
153 String data
154 = "<a>1<b>2<a>3<b>4<a>innermost</a>5</b>6</a>7</b>8</a>";
155 Builder builder = new Builder(new CFactory());
156 Document doc = builder.build(data, "http://www.example.org/");
157 Element root = doc.getRootElement();
158 assertEquals("1234innermost5678", doc.getValue());
159 assertEquals("c", root.getQualifiedName());
160 assertEquals(3, root.getChildCount());
161 Element b = (Element) root.getChild(1);
162 assertEquals("c", b.getQualifiedName());
163
164 }
165
166
167 static class CFactory extends NodeFactory {
168
169 public Element startMakingElement(
170 String name, String namespace) {
171 return new Element("c");
172 }
173
174 }
175
176
177 public void testMakeRoot() throws IOException , ParsingException {
178
179 String data = "<a><b>18</b></a>";
180 Builder builder = new Builder(new CallsMakeRoot());
181 Document doc = builder.build(data, "http://www.example.org/");
182 Element root = doc.getRootElement();
183 assertEquals("rootSubstitute", root.getQualifiedName());
184
185 assertNotNull(root.getFirstChildElement("b"));
187
188 }
189
190
191 static class CallsMakeRoot extends NodeFactory {
192
193 public Element makeRootElement(
194 String name, String namepaceURI) {
195 return new Element("rootSubstitute");
196 }
197
198 }
199
200
201 public void testSkippingProcessingInstruction()
202 throws IOException , ParsingException {
203
204 String data = "<a>1<?test some data?>8</a>";
205 Builder builder = new Builder(new ProcessingInstructionFilter());
206 Document doc = builder.build(data, "http://www.example.org/");
207 Element root = doc.getRootElement();
208 assertEquals(
209 "Skipped processing instruction interrupted text node",
210 2, root.getChildCount()
211 );
212 assertEquals("18", doc.getValue());
213 Node first = root.getChild(0);
214 assertEquals(first.getValue(), "1");
215 Node second = root.getChild(1);
216 assertEquals(second.getValue(), "8");
217
218 }
219
220
221 static class ProcessingInstructionFilter extends NodeFactory {
222
223 public Nodes makeProcessingInstruction(
224 String target, String data) {
225 return new Nodes();
226 }
227
228 }
229
230
231 public void testSkipping2() throws IOException , ParsingException {
232
233 String data
234 = "<a>1<b>2<a>3<b>4<a>innermost</a>5</b>6</a>7</b>8</a>";
235 Builder builder = new Builder(new BFilter());
236 Document doc = builder.build(data, "http://www.example.org/");
237 Element root = doc.getRootElement();
238 assertEquals("1234innermost5678", doc.getValue());
239 assertEquals(5, root.getChildCount());
240 Node first = root.getChild(0);
241 assertEquals("1", first.getValue());
242 Node middle = root.getChild(2);
243 assertEquals("34innermost56", middle.getValue());
244 Node last = root.getChild(4);
245 assertEquals("8", last.getValue());
246
247 Node innermost = middle.getChild(2);
248 assertEquals("innermost", innermost.getValue());
249 Node inner1 = middle.getChild(0);
250 assertEquals("3", inner1.getValue());
251 Node inner3 = middle.getChild(4);
252 assertEquals("6", inner3.getValue());
253
254 }
255
256
257 static class BFilter extends NodeFactory {
258
259 public Element startMakingElement(
260 String name, String namespaceURI) {
261 if (name.equals("b")) return null;
262 return super.startMakingElement(name, namespaceURI);
263 }
264
265 }
266
267
268 public void testMinimalizedDocument()
269 throws IOException , ParsingException {
270
271 File input = new File (data, "entitytest.xml");
272 Builder builder = new Builder(new MinimizingFactory());
273 Document doc = builder.build(input);
274 assertEquals(1, doc.getChildCount());
275 Element root = doc.getRootElement();
276 assertEquals("root", root.getQualifiedName());
277 assertEquals("", root.getNamespaceURI());
278 assertEquals(0, root.getChildCount());
279 assertEquals(0, root.getAttributeCount());
280
281 }
282
283
284 public void testValidateWithFactory()
285 throws ParsingException, IOException {
286 Builder validator = new Builder(true, new MinimizingFactory());
287 Document doc = validator.build("<!-- a comment --><!DOCTYPE root [" +
288 "<!ELEMENT root EMPTY>" +
289 "]>" +
290 "<root/><?a processing instruction?>",
291 "http://www.example.org/");
292 assertEquals(1, doc.getChildCount());
293 }
294
295
296 static class MinimizingFactory extends NodeFactory {
299
300 private Nodes empty = new Nodes();
301
302 public Nodes makeComment(String data) {
303 return empty;
304 }
305
306 public Nodes makeText(String data) {
307 return empty;
308 }
309
310 public Nodes finishMakingElement(Element element) {
311 if (element.getParent() instanceof Document) {
312 return new Nodes(element);
313 }
314 return empty;
315 }
316
317 public Nodes makeAttribute(String name, String URI,
318 String value, Attribute.Type type) {
319 return empty;
320 }
321
322 public Nodes makeDocType(String rootElementName,
323 String publicID, String systemID) {
324 return empty;
325 }
326
327 public Nodes makeProcessingInstruction(
328 String target, String data) {
329 return empty;
330 }
331
332 }
333
334
335 public void testCDATASectionsCanBeOverridden()
336 throws ValidityException, ParsingException, IOException {
337
338 String data ="<root><![CDATA[text]]></root>";
339 Builder builder = new Builder(new MinimizingFactory());
340 Document doc = builder.build(data, "http://www.example.com");
341 assertEquals("", doc.getValue());
342
343 }
344
345
346 public void testNullRootNotAllowed()
347 throws IOException , ParsingException {
348
349 File input = new File (data, "entitytest.xml");
350 Builder builder = new Builder(new NullElementFactory());
351 try {
352 builder.build(input);
353 fail("Allowed null root");
354 }
355 catch (ParsingException success) {
356 assertNotNull(success.getMessage());
357 }
358
359 }
360
361
362 static class NullElementFactory extends NodeFactory {
365
366 public Element startMakingElement(
367 String name, String namespaceURI) {
368 return null;
369 }
370
371 }
372
373
374 public void testNullDocumentNotAllowed()
375 throws IOException , ParsingException {
376
377 File input = new File (data, "entitytest.xml");
378 Builder builder = new Builder(new NullDocumentFactory());
379 try {
380 builder.build(input);
381 fail("Allowed null document");
382 }
383 catch (ParsingException success) {
384 assertTrue(success.getCause() instanceof NullPointerException );
385 }
386
387 }
388
389
390 static class NullDocumentFactory extends NodeFactory {
393
394 public Document startMakingDocument() {
395 return null;
396 }
397
398 }
399
400
401 public void testSkipping() throws IOException , ParsingException {
402
403 String data = "<a>data<b>data<a>data</a>data</b>data</a>";
404 Builder builder = new Builder(new BFilter());
405 Document doc = builder.build(data, "http://www.example.org/");
406 Element root = doc.getRootElement();
407 assertEquals(5, root.getChildCount());
408 assertEquals("datadatadatadatadata", root.getValue());
409 Element middle = (Element) root.getChild(2);
410 assertEquals("data", middle.getValue());
411 Node start = root.getChild(0);
412 Node end = root.getChild(4);
413 assertEquals("data", start.getValue());
414 assertEquals("data", end.getValue());
415
416 }
417
418
419 int numNodesInExternalDTDSubset = 0;
420
421 public void testDontReportCommentsAndProcessingInstructionsInExternalDTDSubset()
422 throws IOException , ParsingException {
423
424 File input = new File (data, "contentindtd.xml");
425 Builder builder = new Builder(new Counter());
426 builder.build(input);
427 assertEquals(0, numNodesInExternalDTDSubset);
428
429 }
430
431
432 private class Counter extends NodeFactory {
433
434 public Nodes makeComment(String data) {
435 numNodesInExternalDTDSubset++;
436 return super.makeComment(data);
437 }
438
439 public Nodes makeProcessingInstruction(String target, String data) {
440 numNodesInExternalDTDSubset++;
441 return super.makeProcessingInstruction(target, data);
442 }
443
444 }
445
446
447 public void testDontCoalesceTextNodes()
448 throws IOException , ParsingException {
449
450 String data = "<a>data<!-- comment--> data</a>";
451 Builder builder = new Builder(new CommentFilter());
452 Document doc = builder.build(data, "http://www.example.org/");
453 Element root = doc.getRootElement();
454 assertEquals(2, root.getChildCount());
455 assertEquals("data data", root.getValue());
456 Text text = (Text) root.getChild(0);
457 assertEquals("data", text.getValue());
458
459 }
460
461
462 static class TripleElementFilter extends NodeFactory {
463
464 public Nodes finishMakingElement(Element element) {
465 Nodes result = new Nodes(element);
466 if (!(element.getParent() instanceof Document)) {
467 result.append(element.copy());
468 result.append(element.copy());
469 }
470 return result;
471 }
472
473 }
474
475
476 public void testTriple()
477 throws IOException , ParsingException {
478
479 String data = "<a><b><c/></b></a>";
480 Builder builder = new Builder(new TripleElementFilter());
481 Document doc = builder.build(data, "http://www.example.org/");
482 Element root = doc.getRootElement();
483 assertEquals(3, root.getChildCount());
484 assertEquals("", root.getValue());
485 Element b = (Element) root.getChild(0);
486 assertEquals("b", b.getLocalName());
487 assertEquals(
488 "<a><b><c /><c /><c /></b><b><c /><c /><c /></b><b><c /><c /><c /></b></a>",
489 root.toXML());
490
491 }
492
493
494 static class UncommentFilter extends NodeFactory {
495
496 public Nodes makeComment(String data) {
497 Nodes result = new Nodes(new Text(data));
498 return result;
499 }
500
501 }
502
503
504 public void testUncomment()
505 throws ParsingException, IOException {
506
507 String data = "<!-- test --><a></a>";
508 Builder builder = new Builder(new UncommentFilter());
509 try {
510 builder.build(data, "http://www.example.org/");
511 fail("built Text into prolog");
512 }
513 catch (ParsingException success) {
514 assertNotNull(success.getMessage());
515 }
516
517 }
518
519
520 static class DocumentFilter extends NodeFactory {
521
522 public Nodes makeComment(String data) {
523 Element root = new Element("root");
524 Nodes result = new Nodes(new Document(root));
525 return result;
526 }
527
528 }
529
530
531 public void testCantAddDocument()
532 throws ParsingException, IOException {
533
534 String data = "<a><!-- test --></a>";
535 Builder builder = new Builder(new DocumentFilter());
536 try {
537 builder.build(data, "http://www.example.org/");
538 fail("built document into document");
539 }
540 catch (ParsingException success) {
541 assertNotNull(success.getMessage());
542 }
543
544 }
545
546
547 public void testCantAddTwoDoctypes()
548 throws ParsingException, IOException {
549
550 String data = "<!DOCTYPE a><a></a>";
551 Builder builder = new Builder(new NodeFactory() {
552
553 public Nodes makeDocType(String name, String publicID, String systemID) {
554 Nodes result = new Nodes();
555 result.append(new DocType(name, publicID, systemID));
556 result.append(new Comment("sajdha"));
557 result.append(new DocType(name, publicID, systemID));
558 return result;
559 }
560
561 });
562 try {
563 builder.build(data, "http://www.example.org/");
564 fail("built two doctypes");
565 }
566 catch (ParsingException success) {
567 assertNotNull(success.getMessage());
568 }
569
570 }
571
572
573 public void testChangeAttributesToElements()
574 throws ParsingException, IOException {
575
576 String data = "<a name=\"test\" value=\"data\"/>";
577 Builder builder = new Builder(new NodeFactory() {
578
579 public Nodes makeAttribute(String name, String URI,
580 String value, Attribute.Type type) {
581 Nodes result = new Nodes();
582 Element element = new Element(name, URI);
583 element.appendChild(value);
584 result.append(element);
585 return result;
586 }
587
588 });
589 Document doc = builder.build(data, "http://www.example.org/");
590 Element root = doc.getRootElement();
591 assertEquals(2, root.getChildCount());
592 Element name = root.getFirstChildElement("name");
593 Element value = root.getFirstChildElement("value");
594 assertEquals("test", name.getValue());
595 assertEquals("data", value.getValue());
596 assertEquals("name", name.getLocalName());
597 assertEquals("value", value.getQualifiedName());
598
599 }
600
601
602 public void testInsertElementsInInternalDTDSubsetViaProcessingInstruction()
603 throws ParsingException, IOException {
604
605 String data = "<!DOCTYPE a [<?target data?>]><a><b>data1</b><c>text</c></a>";
606 Builder builder = new Builder(new NodeFactory() {
607
608 public Nodes makeProcessingInstruction(String target, String data) {
609 Nodes result = new Nodes();
610 Element e = new Element(target);
611 e.appendChild(data);
612 result.append(e);
613 return result;
614 }
615
616 });
617 try {
618 builder.build(data, "http://www.example.org/");
619 fail("Allowed element in internal DTD subset via processing instruction");
620 }
621 catch (ParsingException success) {
622 assertNotNull(success.getMessage());
623 }
624
625 }
626
627
628 public void testInsertElementsInInternalDTDSubsetViaComment()
629 throws ParsingException, IOException {
630
631 String data = "<!DOCTYPE a [<!--data-->]><a><b>data1</b><c>text</c></a>";
632 Builder builder = new Builder(new NodeFactory() {
633
634 public Nodes makeComment(String data) {
635 Nodes result = new Nodes();
636 Element e = new Element("comment");
637 e.appendChild(data);
638 result.append(e);
639 return result;
640 }
641
642 });
643 try {
644 builder.build(data, "http://www.example.org/");
645 fail("Allowed element in internal DTD subset via comment");
646 }
647 catch (ParsingException success) {
648 assertNotNull(success.getMessage());
649 }
650
651 }
652
653
654 public void testChangeElementsToAttributes()
655 throws ParsingException, IOException {
656
657 String data = "<a><b>data1</b><c>text</c></a>";
658 Builder builder = new Builder(new NodeFactory() {
659
660 public Nodes finishMakingElement(Element element) {
661 Nodes result = new Nodes();
662 if (element.getParent() instanceof Document) {
663 result.append(element);
664 }
665 else {
666 result.append(new Attribute(element.getLocalName(), element.getValue()));
667 }
668 return result;
669 }
670
671 });
672 Document doc = builder.build(data, "http://www.example.org/");
673 Element root = doc.getRootElement();
674 assertEquals(0, root.getChildCount());
675 assertEquals(2, root.getAttributeCount());
676 assertEquals("data1", root.getAttribute("b").getValue());
677 assertEquals("text", root.getAttribute("c").getValue());
678
679 }
680
681
682 public void testChangeTextToAttributes()
683 throws ParsingException, IOException {
684
685 String data = "<a><b>data1</b><c>text</c></a>";
686 Builder builder = new Builder(new NodeFactory() {
687
688 public Nodes makeText(String text) {
689 Nodes result = new Nodes();
690 result.append(new Attribute("name", text));
691 return result;
692 }
693
694 });
695 Document doc = builder.build(data, "http://www.example.org/");
696 Element root = doc.getRootElement();
697 assertEquals(2, root.getChildCount());
698 assertEquals(0, root.getAttributeCount());
699 assertEquals("", root.getValue());
700 Element b = root.getFirstChildElement("b");
701 Element c = root.getFirstChildElement("c");
702 assertEquals("data1", b.getAttribute("name").getValue());
703 assertEquals("text", c.getAttribute("name").getValue());
704
705 }
706
707
708 public void testChangeRootElementsToAttribute()
709 throws ParsingException, IOException {
710
711 String data = "<a><b>data1</b><c>text</c></a>";
712 Builder builder = new Builder(new NodeFactory() {
713
714 public Nodes finishMakingElement(Element element) {
715 Nodes result = new Nodes();
716 result.append(new Attribute(element.getLocalName(), element.getValue()));
717 return result;
718 }
719
720 });
721 try {
722 builder.build(data, "http://www.example.org/");
723 fail("replaced root element with attribute");
724 }
725 catch (ParsingException success) {
726 assertNotNull(success.getMessage());
727 }
728
729 }
730
731
732 public void testCantBypassMultipleParentChecks()
733 throws ParsingException, IOException {
734
735 String doc = "<root><a/><a/></root>";
736 Builder builder = new Builder(new NodeFactory() {
737
738 private Element a = new Element("a");
739
740 public Element startMakingElement(String name, String namespace) {
741 if (name.equals("a")) return a;
742 return new Element(name, namespace);
743 }
744
745 });
746 try {
747 builder.build(doc, "http://www.example.org/");
748 fail("built with multiple parents");
749 }
750 &
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Java API By Example, From Geeks To Geeks.