source: python/trunk/Lib/test/test_pyexpat.py

Last change on this file was 391, checked in by dmik, 11 years ago

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1# XXX TypeErrors on calling handlers, or on bad return values from a
2# handler, are obscure and unhelpful.
3
4import StringIO, sys
5import unittest
6
7from xml.parsers import expat
8
9from test import test_support
10from test.test_support import sortdict, run_unittest
11
12
13class SetAttributeTest(unittest.TestCase):
14 def setUp(self):
15 self.parser = expat.ParserCreate(namespace_separator='!')
16 self.set_get_pairs = [
17 [0, 0],
18 [1, 1],
19 [2, 1],
20 [0, 0],
21 ]
22
23 def test_returns_unicode(self):
24 for x, y in self.set_get_pairs:
25 self.parser.returns_unicode = x
26 self.assertEqual(self.parser.returns_unicode, y)
27
28 def test_ordered_attributes(self):
29 for x, y in self.set_get_pairs:
30 self.parser.ordered_attributes = x
31 self.assertEqual(self.parser.ordered_attributes, y)
32
33 def test_specified_attributes(self):
34 for x, y in self.set_get_pairs:
35 self.parser.specified_attributes = x
36 self.assertEqual(self.parser.specified_attributes, y)
37
38
39data = '''\
40<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
41<?xml-stylesheet href="stylesheet.css"?>
42<!-- comment data -->
43<!DOCTYPE quotations SYSTEM "quotations.dtd" [
44<!ELEMENT root ANY>
45<!NOTATION notation SYSTEM "notation.jpeg">
46<!ENTITY acirc "&#226;">
47<!ENTITY external_entity SYSTEM "entity.file">
48<!ENTITY unparsed_entity SYSTEM "entity.file" NDATA notation>
49%unparsed_entity;
50]>
51
52<root attr1="value1" attr2="value2&#8000;">
53<myns:subelement xmlns:myns="http://www.python.org/namespace">
54 Contents of subelements
55</myns:subelement>
56<sub2><![CDATA[contents of CDATA section]]></sub2>
57&external_entity;
58</root>
59'''
60
61
62# Produce UTF-8 output
63class ParseTest(unittest.TestCase):
64 class Outputter:
65 def __init__(self):
66 self.out = []
67
68 def StartElementHandler(self, name, attrs):
69 self.out.append('Start element: ' + repr(name) + ' ' +
70 sortdict(attrs))
71
72 def EndElementHandler(self, name):
73 self.out.append('End element: ' + repr(name))
74
75 def CharacterDataHandler(self, data):
76 data = data.strip()
77 if data:
78 self.out.append('Character data: ' + repr(data))
79
80 def ProcessingInstructionHandler(self, target, data):
81 self.out.append('PI: ' + repr(target) + ' ' + repr(data))
82
83 def StartNamespaceDeclHandler(self, prefix, uri):
84 self.out.append('NS decl: ' + repr(prefix) + ' ' + repr(uri))
85
86 def EndNamespaceDeclHandler(self, prefix):
87 self.out.append('End of NS decl: ' + repr(prefix))
88
89 def StartCdataSectionHandler(self):
90 self.out.append('Start of CDATA section')
91
92 def EndCdataSectionHandler(self):
93 self.out.append('End of CDATA section')
94
95 def CommentHandler(self, text):
96 self.out.append('Comment: ' + repr(text))
97
98 def NotationDeclHandler(self, *args):
99 name, base, sysid, pubid = args
100 self.out.append('Notation declared: %s' %(args,))
101
102 def UnparsedEntityDeclHandler(self, *args):
103 entityName, base, systemId, publicId, notationName = args
104 self.out.append('Unparsed entity decl: %s' %(args,))
105
106 def NotStandaloneHandler(self, userData):
107 self.out.append('Not standalone')
108 return 1
109
110 def ExternalEntityRefHandler(self, *args):
111 context, base, sysId, pubId = args
112 self.out.append('External entity ref: %s' %(args[1:],))
113 return 1
114
115 def DefaultHandler(self, userData):
116 pass
117
118 def DefaultHandlerExpand(self, userData):
119 pass
120
121 handler_names = [
122 'StartElementHandler', 'EndElementHandler',
123 'CharacterDataHandler', 'ProcessingInstructionHandler',
124 'UnparsedEntityDeclHandler', 'NotationDeclHandler',
125 'StartNamespaceDeclHandler', 'EndNamespaceDeclHandler',
126 'CommentHandler', 'StartCdataSectionHandler',
127 'EndCdataSectionHandler',
128 'DefaultHandler', 'DefaultHandlerExpand',
129 #'NotStandaloneHandler',
130 'ExternalEntityRefHandler'
131 ]
132
133 def test_utf8(self):
134
135 out = self.Outputter()
136 parser = expat.ParserCreate(namespace_separator='!')
137 for name in self.handler_names:
138 setattr(parser, name, getattr(out, name))
139 parser.returns_unicode = 0
140 parser.Parse(data, 1)
141
142 # Verify output
143 op = out.out
144 self.assertEqual(op[0], 'PI: \'xml-stylesheet\' \'href="stylesheet.css"\'')
145 self.assertEqual(op[1], "Comment: ' comment data '")
146 self.assertEqual(op[2], "Notation declared: ('notation', None, 'notation.jpeg', None)")
147 self.assertEqual(op[3], "Unparsed entity decl: ('unparsed_entity', None, 'entity.file', None, 'notation')")
148 self.assertEqual(op[4], "Start element: 'root' {'attr1': 'value1', 'attr2': 'value2\\xe1\\xbd\\x80'}")
149 self.assertEqual(op[5], "NS decl: 'myns' 'http://www.python.org/namespace'")
150 self.assertEqual(op[6], "Start element: 'http://www.python.org/namespace!subelement' {}")
151 self.assertEqual(op[7], "Character data: 'Contents of subelements'")
152 self.assertEqual(op[8], "End element: 'http://www.python.org/namespace!subelement'")
153 self.assertEqual(op[9], "End of NS decl: 'myns'")
154 self.assertEqual(op[10], "Start element: 'sub2' {}")
155 self.assertEqual(op[11], 'Start of CDATA section')
156 self.assertEqual(op[12], "Character data: 'contents of CDATA section'")
157 self.assertEqual(op[13], 'End of CDATA section')
158 self.assertEqual(op[14], "End element: 'sub2'")
159 self.assertEqual(op[15], "External entity ref: (None, 'entity.file', None)")
160 self.assertEqual(op[16], "End element: 'root'")
161
162 def test_unicode(self):
163 # Try the parse again, this time producing Unicode output
164 out = self.Outputter()
165 parser = expat.ParserCreate(namespace_separator='!')
166 parser.returns_unicode = 1
167 for name in self.handler_names:
168 setattr(parser, name, getattr(out, name))
169
170 parser.Parse(data, 1)
171
172 op = out.out
173 self.assertEqual(op[0], 'PI: u\'xml-stylesheet\' u\'href="stylesheet.css"\'')
174 self.assertEqual(op[1], "Comment: u' comment data '")
175 self.assertEqual(op[2], "Notation declared: (u'notation', None, u'notation.jpeg', None)")
176 self.assertEqual(op[3], "Unparsed entity decl: (u'unparsed_entity', None, u'entity.file', None, u'notation')")
177 self.assertEqual(op[4], "Start element: u'root' {u'attr1': u'value1', u'attr2': u'value2\\u1f40'}")
178 self.assertEqual(op[5], "NS decl: u'myns' u'http://www.python.org/namespace'")
179 self.assertEqual(op[6], "Start element: u'http://www.python.org/namespace!subelement' {}")
180 self.assertEqual(op[7], "Character data: u'Contents of subelements'")
181 self.assertEqual(op[8], "End element: u'http://www.python.org/namespace!subelement'")
182 self.assertEqual(op[9], "End of NS decl: u'myns'")
183 self.assertEqual(op[10], "Start element: u'sub2' {}")
184 self.assertEqual(op[11], 'Start of CDATA section')
185 self.assertEqual(op[12], "Character data: u'contents of CDATA section'")
186 self.assertEqual(op[13], 'End of CDATA section')
187 self.assertEqual(op[14], "End element: u'sub2'")
188 self.assertEqual(op[15], "External entity ref: (None, u'entity.file', None)")
189 self.assertEqual(op[16], "End element: u'root'")
190
191 def test_parse_file(self):
192 # Try parsing a file
193 out = self.Outputter()
194 parser = expat.ParserCreate(namespace_separator='!')
195 parser.returns_unicode = 1
196 for name in self.handler_names:
197 setattr(parser, name, getattr(out, name))
198 file = StringIO.StringIO(data)
199
200 parser.ParseFile(file)
201
202 op = out.out
203 self.assertEqual(op[0], 'PI: u\'xml-stylesheet\' u\'href="stylesheet.css"\'')
204 self.assertEqual(op[1], "Comment: u' comment data '")
205 self.assertEqual(op[2], "Notation declared: (u'notation', None, u'notation.jpeg', None)")
206 self.assertEqual(op[3], "Unparsed entity decl: (u'unparsed_entity', None, u'entity.file', None, u'notation')")
207 self.assertEqual(op[4], "Start element: u'root' {u'attr1': u'value1', u'attr2': u'value2\\u1f40'}")
208 self.assertEqual(op[5], "NS decl: u'myns' u'http://www.python.org/namespace'")
209 self.assertEqual(op[6], "Start element: u'http://www.python.org/namespace!subelement' {}")
210 self.assertEqual(op[7], "Character data: u'Contents of subelements'")
211 self.assertEqual(op[8], "End element: u'http://www.python.org/namespace!subelement'")
212 self.assertEqual(op[9], "End of NS decl: u'myns'")
213 self.assertEqual(op[10], "Start element: u'sub2' {}")
214 self.assertEqual(op[11], 'Start of CDATA section')
215 self.assertEqual(op[12], "Character data: u'contents of CDATA section'")
216 self.assertEqual(op[13], 'End of CDATA section')
217 self.assertEqual(op[14], "End element: u'sub2'")
218 self.assertEqual(op[15], "External entity ref: (None, u'entity.file', None)")
219 self.assertEqual(op[16], "End element: u'root'")
220
221 # Issue 4877: expat.ParseFile causes segfault on a closed file.
222 fp = open(test_support.TESTFN, 'wb')
223 try:
224 fp.close()
225 parser = expat.ParserCreate()
226 with self.assertRaises(ValueError):
227 parser.ParseFile(fp)
228 finally:
229 test_support.unlink(test_support.TESTFN)
230
231
232class NamespaceSeparatorTest(unittest.TestCase):
233 def test_legal(self):
234 # Tests that make sure we get errors when the namespace_separator value
235 # is illegal, and that we don't for good values:
236 expat.ParserCreate()
237 expat.ParserCreate(namespace_separator=None)
238 expat.ParserCreate(namespace_separator=' ')
239
240 def test_illegal(self):
241 try:
242 expat.ParserCreate(namespace_separator=42)
243 self.fail()
244 except TypeError, e:
245 self.assertEqual(str(e),
246 'ParserCreate() argument 2 must be string or None, not int')
247
248 try:
249 expat.ParserCreate(namespace_separator='too long')
250 self.fail()
251 except ValueError, e:
252 self.assertEqual(str(e),
253 'namespace_separator must be at most one character, omitted, or None')
254
255 def test_zero_length(self):
256 # ParserCreate() needs to accept a namespace_separator of zero length
257 # to satisfy the requirements of RDF applications that are required
258 # to simply glue together the namespace URI and the localname. Though
259 # considered a wart of the RDF specifications, it needs to be supported.
260 #
261 # See XML-SIG mailing list thread starting with
262 # http://mail.python.org/pipermail/xml-sig/2001-April/005202.html
263 #
264 expat.ParserCreate(namespace_separator='') # too short
265
266
267class InterningTest(unittest.TestCase):
268 def test(self):
269 # Test the interning machinery.
270 p = expat.ParserCreate()
271 L = []
272 def collector(name, *args):
273 L.append(name)
274 p.StartElementHandler = collector
275 p.EndElementHandler = collector
276 p.Parse("<e> <e/> <e></e> </e>", 1)
277 tag = L[0]
278 self.assertEqual(len(L), 6)
279 for entry in L:
280 # L should have the same string repeated over and over.
281 self.assertTrue(tag is entry)
282
283
284class BufferTextTest(unittest.TestCase):
285 def setUp(self):
286 self.stuff = []
287 self.parser = expat.ParserCreate()
288 self.parser.buffer_text = 1
289 self.parser.CharacterDataHandler = self.CharacterDataHandler
290
291 def check(self, expected, label):
292 self.assertEqual(self.stuff, expected,
293 "%s\nstuff = %r\nexpected = %r"
294 % (label, self.stuff, map(unicode, expected)))
295
296 def CharacterDataHandler(self, text):
297 self.stuff.append(text)
298
299 def StartElementHandler(self, name, attrs):
300 self.stuff.append("<%s>" % name)
301 bt = attrs.get("buffer-text")
302 if bt == "yes":
303 self.parser.buffer_text = 1
304 elif bt == "no":
305 self.parser.buffer_text = 0
306
307 def EndElementHandler(self, name):
308 self.stuff.append("</%s>" % name)
309
310 def CommentHandler(self, data):
311 self.stuff.append("<!--%s-->" % data)
312
313 def setHandlers(self, handlers=[]):
314 for name in handlers:
315 setattr(self.parser, name, getattr(self, name))
316
317 def test_default_to_disabled(self):
318 parser = expat.ParserCreate()
319 self.assertFalse(parser.buffer_text)
320
321 def test_buffering_enabled(self):
322 # Make sure buffering is turned on
323 self.assertTrue(self.parser.buffer_text)
324 self.parser.Parse("<a>1<b/>2<c/>3</a>", 1)
325 self.assertEqual(self.stuff, ['123'],
326 "buffered text not properly collapsed")
327
328 def test1(self):
329 # XXX This test exposes more detail of Expat's text chunking than we
330 # XXX like, but it tests what we need to concisely.
331 self.setHandlers(["StartElementHandler"])
332 self.parser.Parse("<a>1<b buffer-text='no'/>2\n3<c buffer-text='yes'/>4\n5</a>", 1)
333 self.assertEqual(self.stuff,
334 ["<a>", "1", "<b>", "2", "\n", "3", "<c>", "4\n5"],
335 "buffering control not reacting as expected")
336
337 def test2(self):
338 self.parser.Parse("<a>1<b/>&lt;2&gt;<c/>&#32;\n&#x20;3</a>", 1)
339 self.assertEqual(self.stuff, ["1<2> \n 3"],
340 "buffered text not properly collapsed")
341
342 def test3(self):
343 self.setHandlers(["StartElementHandler"])
344 self.parser.Parse("<a>1<b/>2<c/>3</a>", 1)
345 self.assertEqual(self.stuff, ["<a>", "1", "<b>", "2", "<c>", "3"],
346 "buffered text not properly split")
347
348 def test4(self):
349 self.setHandlers(["StartElementHandler", "EndElementHandler"])
350 self.parser.CharacterDataHandler = None
351 self.parser.Parse("<a>1<b/>2<c/>3</a>", 1)
352 self.assertEqual(self.stuff,
353 ["<a>", "<b>", "</b>", "<c>", "</c>", "</a>"])
354
355 def test5(self):
356 self.setHandlers(["StartElementHandler", "EndElementHandler"])
357 self.parser.Parse("<a>1<b></b>2<c/>3</a>", 1)
358 self.assertEqual(self.stuff,
359 ["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "3", "</a>"])
360
361 def test6(self):
362 self.setHandlers(["CommentHandler", "EndElementHandler",
363 "StartElementHandler"])
364 self.parser.Parse("<a>1<b/>2<c></c>345</a> ", 1)
365 self.assertEqual(self.stuff,
366 ["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "345", "</a>"],
367 "buffered text not properly split")
368
369 def test7(self):
370 self.setHandlers(["CommentHandler", "EndElementHandler",
371 "StartElementHandler"])
372 self.parser.Parse("<a>1<b/>2<c></c>3<!--abc-->4<!--def-->5</a> ", 1)
373 self.assertEqual(self.stuff,
374 ["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "3",
375 "<!--abc-->", "4", "<!--def-->", "5", "</a>"],
376 "buffered text not properly split")
377
378
379# Test handling of exception from callback:
380class HandlerExceptionTest(unittest.TestCase):
381 def StartElementHandler(self, name, attrs):
382 raise RuntimeError(name)
383
384 def test(self):
385 parser = expat.ParserCreate()
386 parser.StartElementHandler = self.StartElementHandler
387 try:
388 parser.Parse("<a><b><c/></b></a>", 1)
389 self.fail()
390 except RuntimeError, e:
391 self.assertEqual(e.args[0], 'a',
392 "Expected RuntimeError for element 'a', but" + \
393 " found %r" % e.args[0])
394
395
396# Test Current* members:
397class PositionTest(unittest.TestCase):
398 def StartElementHandler(self, name, attrs):
399 self.check_pos('s')
400
401 def EndElementHandler(self, name):
402 self.check_pos('e')
403
404 def check_pos(self, event):
405 pos = (event,
406 self.parser.CurrentByteIndex,
407 self.parser.CurrentLineNumber,
408 self.parser.CurrentColumnNumber)
409 self.assertTrue(self.upto < len(self.expected_list),
410 'too many parser events')
411 expected = self.expected_list[self.upto]
412 self.assertEqual(pos, expected,
413 'Expected position %s, got position %s' %(pos, expected))
414 self.upto += 1
415
416 def test(self):
417 self.parser = expat.ParserCreate()
418 self.parser.StartElementHandler = self.StartElementHandler
419 self.parser.EndElementHandler = self.EndElementHandler
420 self.upto = 0
421 self.expected_list = [('s', 0, 1, 0), ('s', 5, 2, 1), ('s', 11, 3, 2),
422 ('e', 15, 3, 6), ('e', 17, 4, 1), ('e', 22, 5, 0)]
423
424 xml = '<a>\n <b>\n <c/>\n </b>\n</a>'
425 self.parser.Parse(xml, 1)
426
427
428class sf1296433Test(unittest.TestCase):
429 def test_parse_only_xml_data(self):
430 # http://python.org/sf/1296433
431 #
432 xml = "<?xml version='1.0' encoding='iso8859'?><s>%s</s>" % ('a' * 1025)
433 # this one doesn't crash
434 #xml = "<?xml version='1.0'?><s>%s</s>" % ('a' * 10000)
435
436 class SpecificException(Exception):
437 pass
438
439 def handler(text):
440 raise SpecificException
441
442 parser = expat.ParserCreate()
443 parser.CharacterDataHandler = handler
444
445 self.assertRaises(Exception, parser.Parse, xml)
446
447class ChardataBufferTest(unittest.TestCase):
448 """
449 test setting of chardata buffer size
450 """
451
452 def test_1025_bytes(self):
453 self.assertEqual(self.small_buffer_test(1025), 2)
454
455 def test_1000_bytes(self):
456 self.assertEqual(self.small_buffer_test(1000), 1)
457
458 def test_wrong_size(self):
459 parser = expat.ParserCreate()
460 parser.buffer_text = 1
461 def f(size):
462 parser.buffer_size = size
463
464 self.assertRaises(TypeError, f, sys.maxint+1)
465 self.assertRaises(ValueError, f, -1)
466 self.assertRaises(ValueError, f, 0)
467
468 def test_unchanged_size(self):
469 xml1 = ("<?xml version='1.0' encoding='iso8859'?><s>%s" % ('a' * 512))
470 xml2 = 'a'*512 + '</s>'
471 parser = expat.ParserCreate()
472 parser.CharacterDataHandler = self.counting_handler
473 parser.buffer_size = 512
474 parser.buffer_text = 1
475
476 # Feed 512 bytes of character data: the handler should be called
477 # once.
478 self.n = 0
479 parser.Parse(xml1)
480 self.assertEqual(self.n, 1)
481
482 # Reassign to buffer_size, but assign the same size.
483 parser.buffer_size = parser.buffer_size
484 self.assertEqual(self.n, 1)
485
486 # Try parsing rest of the document
487 parser.Parse(xml2)
488 self.assertEqual(self.n, 2)
489
490
491 def test_disabling_buffer(self):
492 xml1 = "<?xml version='1.0' encoding='iso8859'?><a>%s" % ('a' * 512)
493 xml2 = ('b' * 1024)
494 xml3 = "%s</a>" % ('c' * 1024)
495 parser = expat.ParserCreate()
496 parser.CharacterDataHandler = self.counting_handler
497 parser.buffer_text = 1
498 parser.buffer_size = 1024
499 self.assertEqual(parser.buffer_size, 1024)
500
501 # Parse one chunk of XML
502 self.n = 0
503 parser.Parse(xml1, 0)
504 self.assertEqual(parser.buffer_size, 1024)
505 self.assertEqual(self.n, 1)
506
507 # Turn off buffering and parse the next chunk.
508 parser.buffer_text = 0
509 self.assertFalse(parser.buffer_text)
510 self.assertEqual(parser.buffer_size, 1024)
511 for i in range(10):
512 parser.Parse(xml2, 0)
513 self.assertEqual(self.n, 11)
514
515 parser.buffer_text = 1
516 self.assertTrue(parser.buffer_text)
517 self.assertEqual(parser.buffer_size, 1024)
518 parser.Parse(xml3, 1)
519 self.assertEqual(self.n, 12)
520
521
522
523 def make_document(self, bytes):
524 return ("<?xml version='1.0'?><tag>" + bytes * 'a' + '</tag>')
525
526 def counting_handler(self, text):
527 self.n += 1
528
529 def small_buffer_test(self, buffer_len):
530 xml = "<?xml version='1.0' encoding='iso8859'?><s>%s</s>" % ('a' * buffer_len)
531 parser = expat.ParserCreate()
532 parser.CharacterDataHandler = self.counting_handler
533 parser.buffer_size = 1024
534 parser.buffer_text = 1
535
536 self.n = 0
537 parser.Parse(xml)
538 return self.n
539
540 def test_change_size_1(self):
541 xml1 = "<?xml version='1.0' encoding='iso8859'?><a><s>%s" % ('a' * 1024)
542 xml2 = "aaa</s><s>%s</s></a>" % ('a' * 1025)
543 parser = expat.ParserCreate()
544 parser.CharacterDataHandler = self.counting_handler
545 parser.buffer_text = 1
546 parser.buffer_size = 1024
547 self.assertEqual(parser.buffer_size, 1024)
548
549 self.n = 0
550 parser.Parse(xml1, 0)
551 parser.buffer_size *= 2
552 self.assertEqual(parser.buffer_size, 2048)
553 parser.Parse(xml2, 1)
554 self.assertEqual(self.n, 2)
555
556 def test_change_size_2(self):
557 xml1 = "<?xml version='1.0' encoding='iso8859'?><a>a<s>%s" % ('a' * 1023)
558 xml2 = "aaa</s><s>%s</s></a>" % ('a' * 1025)
559 parser = expat.ParserCreate()
560 parser.CharacterDataHandler = self.counting_handler
561 parser.buffer_text = 1
562 parser.buffer_size = 2048
563 self.assertEqual(parser.buffer_size, 2048)
564
565 self.n=0
566 parser.Parse(xml1, 0)
567 parser.buffer_size //= 2
568 self.assertEqual(parser.buffer_size, 1024)
569 parser.Parse(xml2, 1)
570 self.assertEqual(self.n, 4)
571
572class MalformedInputText(unittest.TestCase):
573 def test1(self):
574 xml = "\0\r\n"
575 parser = expat.ParserCreate()
576 try:
577 parser.Parse(xml, True)
578 self.fail()
579 except expat.ExpatError as e:
580 self.assertEqual(str(e), 'unclosed token: line 2, column 0')
581
582 def test2(self):
583 xml = "<?xml version\xc2\x85='1.0'?>\r\n"
584 parser = expat.ParserCreate()
585 try:
586 parser.Parse(xml, True)
587 self.fail()
588 except expat.ExpatError as e:
589 self.assertEqual(str(e), 'XML declaration not well-formed: line 1, column 14')
590
591class ForeignDTDTests(unittest.TestCase):
592 """
593 Tests for the UseForeignDTD method of expat parser objects.
594 """
595 def test_use_foreign_dtd(self):
596 """
597 If UseForeignDTD is passed True and a document without an external
598 entity reference is parsed, ExternalEntityRefHandler is first called
599 with None for the public and system ids.
600 """
601 handler_call_args = []
602 def resolve_entity(context, base, system_id, public_id):
603 handler_call_args.append((public_id, system_id))
604 return 1
605
606 parser = expat.ParserCreate()
607 parser.UseForeignDTD(True)
608 parser.SetParamEntityParsing(expat.XML_PARAM_ENTITY_PARSING_ALWAYS)
609 parser.ExternalEntityRefHandler = resolve_entity
610 parser.Parse("<?xml version='1.0'?><element/>")
611 self.assertEqual(handler_call_args, [(None, None)])
612
613 # test UseForeignDTD() is equal to UseForeignDTD(True)
614 handler_call_args[:] = []
615
616 parser = expat.ParserCreate()
617 parser.UseForeignDTD()
618 parser.SetParamEntityParsing(expat.XML_PARAM_ENTITY_PARSING_ALWAYS)
619 parser.ExternalEntityRefHandler = resolve_entity
620 parser.Parse("<?xml version='1.0'?><element/>")
621 self.assertEqual(handler_call_args, [(None, None)])
622
623 def test_ignore_use_foreign_dtd(self):
624 """
625 If UseForeignDTD is passed True and a document with an external
626 entity reference is parsed, ExternalEntityRefHandler is called with
627 the public and system ids from the document.
628 """
629 handler_call_args = []
630 def resolve_entity(context, base, system_id, public_id):
631 handler_call_args.append((public_id, system_id))
632 return 1
633
634 parser = expat.ParserCreate()
635 parser.UseForeignDTD(True)
636 parser.SetParamEntityParsing(expat.XML_PARAM_ENTITY_PARSING_ALWAYS)
637 parser.ExternalEntityRefHandler = resolve_entity
638 parser.Parse(
639 "<?xml version='1.0'?><!DOCTYPE foo PUBLIC 'bar' 'baz'><element/>")
640 self.assertEqual(handler_call_args, [("bar", "baz")])
641
642
643def test_main():
644 run_unittest(SetAttributeTest,
645 ParseTest,
646 NamespaceSeparatorTest,
647 InterningTest,
648 BufferTextTest,
649 HandlerExceptionTest,
650 PositionTest,
651 sf1296433Test,
652 ChardataBufferTest,
653 MalformedInputText,
654 ForeignDTDTests)
655
656if __name__ == "__main__":
657 test_main()
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