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1# regression test for SAX 2.0            -*- coding: utf-8 -*-
2# $Id$
3
4from xml.sax import make_parser, ContentHandler, \
5                    SAXException, SAXReaderNotAvailable, SAXParseException
6try:
7    make_parser()
8except SAXReaderNotAvailable:
9    # don't try to test this module if we cannot create a parser
10    raise ImportError("no XML parsers available")
11from xml.sax.saxutils import XMLGenerator, escape, unescape, quoteattr, \
12                             XMLFilterBase
13from xml.sax.expatreader import create_parser
14from xml.sax.handler import feature_namespaces
15from xml.sax.xmlreader import InputSource, AttributesImpl, AttributesNSImpl
16from cStringIO import StringIO
17from test.test_support import findfile, run_unittest
18import unittest
19
20TEST_XMLFILE = findfile("test.xml", subdir="xmltestdata")
21TEST_XMLFILE_OUT = findfile("test.xml.out", subdir="xmltestdata")
22
23ns_uri = "http://www.python.org/xml-ns/saxtest/"
24
25class XmlTestBase(unittest.TestCase):
26    def verify_empty_attrs(self, attrs):
27        self.assertRaises(KeyError, attrs.getValue, "attr")
28        self.assertRaises(KeyError, attrs.getValueByQName, "attr")
29        self.assertRaises(KeyError, attrs.getNameByQName, "attr")
30        self.assertRaises(KeyError, attrs.getQNameByName, "attr")
31        self.assertRaises(KeyError, attrs.__getitem__, "attr")
32        self.assertEqual(attrs.getLength(), 0)
33        self.assertEqual(attrs.getNames(), [])
34        self.assertEqual(attrs.getQNames(), [])
35        self.assertEqual(len(attrs), 0)
36        self.assertFalse(attrs.has_key("attr"))
37        self.assertEqual(attrs.keys(), [])
38        self.assertEqual(attrs.get("attrs"), None)
39        self.assertEqual(attrs.get("attrs", 25), 25)
40        self.assertEqual(attrs.items(), [])
41        self.assertEqual(attrs.values(), [])
42
43    def verify_empty_nsattrs(self, attrs):
44        self.assertRaises(KeyError, attrs.getValue, (ns_uri, "attr"))
45        self.assertRaises(KeyError, attrs.getValueByQName, "ns:attr")
46        self.assertRaises(KeyError, attrs.getNameByQName, "ns:attr")
47        self.assertRaises(KeyError, attrs.getQNameByName, (ns_uri, "attr"))
48        self.assertRaises(KeyError, attrs.__getitem__, (ns_uri, "attr"))
49        self.assertEqual(attrs.getLength(), 0)
50        self.assertEqual(attrs.getNames(), [])
51        self.assertEqual(attrs.getQNames(), [])
52        self.assertEqual(len(attrs), 0)
53        self.assertFalse(attrs.has_key((ns_uri, "attr")))
54        self.assertEqual(attrs.keys(), [])
55        self.assertEqual(attrs.get((ns_uri, "attr")), None)
56        self.assertEqual(attrs.get((ns_uri, "attr"), 25), 25)
57        self.assertEqual(attrs.items(), [])
58        self.assertEqual(attrs.values(), [])
59
60    def verify_attrs_wattr(self, attrs):
61        self.assertEqual(attrs.getLength(), 1)
62        self.assertEqual(attrs.getNames(), ["attr"])
63        self.assertEqual(attrs.getQNames(), ["attr"])
64        self.assertEqual(len(attrs), 1)
65        self.assertTrue(attrs.has_key("attr"))
66        self.assertEqual(attrs.keys(), ["attr"])
67        self.assertEqual(attrs.get("attr"), "val")
68        self.assertEqual(attrs.get("attr", 25), "val")
69        self.assertEqual(attrs.items(), [("attr", "val")])
70        self.assertEqual(attrs.values(), ["val"])
71        self.assertEqual(attrs.getValue("attr"), "val")
72        self.assertEqual(attrs.getValueByQName("attr"), "val")
73        self.assertEqual(attrs.getNameByQName("attr"), "attr")
74        self.assertEqual(attrs["attr"], "val")
75        self.assertEqual(attrs.getQNameByName("attr"), "attr")
76
77class MakeParserTest(unittest.TestCase):
78    def test_make_parser2(self):
79        # Creating parsers several times in a row should succeed.
80        # Testing this because there have been failures of this kind
81        # before.
82        from xml.sax import make_parser
83        p = make_parser()
84        from xml.sax import make_parser
85        p = make_parser()
86        from xml.sax import make_parser
87        p = make_parser()
88        from xml.sax import make_parser
89        p = make_parser()
90        from xml.sax import make_parser
91        p = make_parser()
92        from xml.sax import make_parser
93        p = make_parser()
94
95
96# ===========================================================================
97#
98#   saxutils tests
99#
100# ===========================================================================
101
102class SaxutilsTest(unittest.TestCase):
103    # ===== escape
104    def test_escape_basic(self):
105        self.assertEqual(escape("Donald Duck & Co"), "Donald Duck & Co")
106
107    def test_escape_all(self):
108        self.assertEqual(escape("<Donald Duck & Co>"),
109                         "&lt;Donald Duck &amp; Co&gt;")
110
111    def test_escape_extra(self):
112        self.assertEqual(escape("Hei på deg", {"å" : "&aring;"}),
113                         "Hei p&aring; deg")
114
115    # ===== unescape
116    def test_unescape_basic(self):
117        self.assertEqual(unescape("Donald Duck &amp; Co"), "Donald Duck & Co")
118
119    def test_unescape_all(self):
120        self.assertEqual(unescape("&lt;Donald Duck &amp; Co&gt;"),
121                         "<Donald Duck & Co>")
122
123    def test_unescape_extra(self):
124        self.assertEqual(unescape("Hei på deg", {"å" : "&aring;"}),
125                         "Hei p&aring; deg")
126
127    def test_unescape_amp_extra(self):
128        self.assertEqual(unescape("&amp;foo;", {"&foo;": "splat"}), "&foo;")
129
130    # ===== quoteattr
131    def test_quoteattr_basic(self):
132        self.assertEqual(quoteattr("Donald Duck & Co"),
133                         '"Donald Duck &amp; Co"')
134
135    def test_single_quoteattr(self):
136        self.assertEqual(quoteattr('Includes "double" quotes'),
137                         '\'Includes "double" quotes\'')
138
139    def test_double_quoteattr(self):
140        self.assertEqual(quoteattr("Includes 'single' quotes"),
141                         "\"Includes 'single' quotes\"")
142
143    def test_single_double_quoteattr(self):
144        self.assertEqual(quoteattr("Includes 'single' and \"double\" quotes"),
145                         "\"Includes 'single' and &quot;double&quot; quotes\"")
146
147    # ===== make_parser
148    def test_make_parser(self):
149        # Creating a parser should succeed - it should fall back
150        # to the expatreader
151        p = make_parser(['xml.parsers.no_such_parser'])
152
153
154# ===== XMLGenerator
155
156start = '<?xml version="1.0" encoding="iso-8859-1"?>\n'
157
158class XmlgenTest(unittest.TestCase):
159    def test_xmlgen_basic(self):
160        result = StringIO()
161        gen = XMLGenerator(result)
162        gen.startDocument()
163        gen.startElement("doc", {})
164        gen.endElement("doc")
165        gen.endDocument()
166
167        self.assertEqual(result.getvalue(), start + "<doc></doc>")
168
169    def test_xmlgen_content(self):
170        result = StringIO()
171        gen = XMLGenerator(result)
172
173        gen.startDocument()
174        gen.startElement("doc", {})
175        gen.characters("huhei")
176        gen.endElement("doc")
177        gen.endDocument()
178
179        self.assertEqual(result.getvalue(), start + "<doc>huhei</doc>")
180
181    def test_xmlgen_pi(self):
182        result = StringIO()
183        gen = XMLGenerator(result)
184
185        gen.startDocument()
186        gen.processingInstruction("test", "data")
187        gen.startElement("doc", {})
188        gen.endElement("doc")
189        gen.endDocument()
190
191        self.assertEqual(result.getvalue(), start + "<?test data?><doc></doc>")
192
193    def test_xmlgen_content_escape(self):
194        result = StringIO()
195        gen = XMLGenerator(result)
196
197        gen.startDocument()
198        gen.startElement("doc", {})
199        gen.characters("<huhei&")
200        gen.endElement("doc")
201        gen.endDocument()
202
203        self.assertEqual(result.getvalue(),
204            start + "<doc>&lt;huhei&amp;</doc>")
205
206    def test_xmlgen_attr_escape(self):
207        result = StringIO()
208        gen = XMLGenerator(result)
209
210        gen.startDocument()
211        gen.startElement("doc", {"a": '"'})
212        gen.startElement("e", {"a": "'"})
213        gen.endElement("e")
214        gen.startElement("e", {"a": "'\""})
215        gen.endElement("e")
216        gen.startElement("e", {"a": "\n\r\t"})
217        gen.endElement("e")
218        gen.endElement("doc")
219        gen.endDocument()
220
221        self.assertEqual(result.getvalue(), start +
222            ("<doc a='\"'><e a=\"'\"></e>"
223             "<e a=\"'&quot;\"></e>"
224             "<e a=\"&#10;&#13;&#9;\"></e></doc>"))
225
226    def test_xmlgen_ignorable(self):
227        result = StringIO()
228        gen = XMLGenerator(result)
229
230        gen.startDocument()
231        gen.startElement("doc", {})
232        gen.ignorableWhitespace(" ")
233        gen.endElement("doc")
234        gen.endDocument()
235
236        self.assertEqual(result.getvalue(), start + "<doc> </doc>")
237
238    def test_xmlgen_ns(self):
239        result = StringIO()
240        gen = XMLGenerator(result)
241
242        gen.startDocument()
243        gen.startPrefixMapping("ns1", ns_uri)
244        gen.startElementNS((ns_uri, "doc"), "ns1:doc", {})
245        # add an unqualified name
246        gen.startElementNS((None, "udoc"), None, {})
247        gen.endElementNS((None, "udoc"), None)
248        gen.endElementNS((ns_uri, "doc"), "ns1:doc")
249        gen.endPrefixMapping("ns1")
250        gen.endDocument()
251
252        self.assertEqual(result.getvalue(), start + \
253           ('<ns1:doc xmlns:ns1="%s"><udoc></udoc></ns1:doc>' %
254                                         ns_uri))
255
256    def test_1463026_1(self):
257        result = StringIO()
258        gen = XMLGenerator(result)
259
260        gen.startDocument()
261        gen.startElementNS((None, 'a'), 'a', {(None, 'b'):'c'})
262        gen.endElementNS((None, 'a'), 'a')
263        gen.endDocument()
264
265        self.assertEqual(result.getvalue(), start+'<a b="c"></a>')
266
267    def test_1463026_2(self):
268        result = StringIO()
269        gen = XMLGenerator(result)
270
271        gen.startDocument()
272        gen.startPrefixMapping(None, 'qux')
273        gen.startElementNS(('qux', 'a'), 'a', {})
274        gen.endElementNS(('qux', 'a'), 'a')
275        gen.endPrefixMapping(None)
276        gen.endDocument()
277
278        self.assertEqual(result.getvalue(), start+'<a xmlns="qux"></a>')
279
280    def test_1463026_3(self):
281        result = StringIO()
282        gen = XMLGenerator(result)
283
284        gen.startDocument()
285        gen.startPrefixMapping('my', 'qux')
286        gen.startElementNS(('qux', 'a'), 'a', {(None, 'b'):'c'})
287        gen.endElementNS(('qux', 'a'), 'a')
288        gen.endPrefixMapping('my')
289        gen.endDocument()
290
291        self.assertEqual(result.getvalue(),
292            start+'<my:a xmlns:my="qux" b="c"></my:a>')
293
294    def test_5027_1(self):
295        # The xml prefix (as in xml:lang below) is reserved and bound by
296        # definition to http://www.w3.org/XML/1998/namespace.  XMLGenerator had
297        # a bug whereby a KeyError is thrown because this namespace is missing
298        # from a dictionary.
299        #
300        # This test demonstrates the bug by parsing a document.
301        test_xml = StringIO(
302            '<?xml version="1.0"?>'
303            '<a:g1 xmlns:a="http://example.com/ns">'
304             '<a:g2 xml:lang="en">Hello</a:g2>'
305            '</a:g1>')
306
307        parser = make_parser()
308        parser.setFeature(feature_namespaces, True)
309        result = StringIO()
310        gen = XMLGenerator(result)
311        parser.setContentHandler(gen)
312        parser.parse(test_xml)
313
314        self.assertEqual(result.getvalue(),
315                         start + (
316                         '<a:g1 xmlns:a="http://example.com/ns">'
317                          '<a:g2 xml:lang="en">Hello</a:g2>'
318                         '</a:g1>'))
319
320    def test_5027_2(self):
321        # The xml prefix (as in xml:lang below) is reserved and bound by
322        # definition to http://www.w3.org/XML/1998/namespace.  XMLGenerator had
323        # a bug whereby a KeyError is thrown because this namespace is missing
324        # from a dictionary.
325        #
326        # This test demonstrates the bug by direct manipulation of the
327        # XMLGenerator.
328        result = StringIO()
329        gen = XMLGenerator(result)
330
331        gen.startDocument()
332        gen.startPrefixMapping('a', 'http://example.com/ns')
333        gen.startElementNS(('http://example.com/ns', 'g1'), 'g1', {})
334        lang_attr = {('http://www.w3.org/XML/1998/namespace', 'lang'): 'en'}
335        gen.startElementNS(('http://example.com/ns', 'g2'), 'g2', lang_attr)
336        gen.characters('Hello')
337        gen.endElementNS(('http://example.com/ns', 'g2'), 'g2')
338        gen.endElementNS(('http://example.com/ns', 'g1'), 'g1')
339        gen.endPrefixMapping('a')
340        gen.endDocument()
341
342        self.assertEqual(result.getvalue(),
343                         start + (
344                         '<a:g1 xmlns:a="http://example.com/ns">'
345                          '<a:g2 xml:lang="en">Hello</a:g2>'
346                         '</a:g1>'))
347
348
349class XMLFilterBaseTest(unittest.TestCase):
350    def test_filter_basic(self):
351        result = StringIO()
352        gen = XMLGenerator(result)
353        filter = XMLFilterBase()
354        filter.setContentHandler(gen)
355
356        filter.startDocument()
357        filter.startElement("doc", {})
358        filter.characters("content")
359        filter.ignorableWhitespace(" ")
360        filter.endElement("doc")
361        filter.endDocument()
362
363        self.assertEqual(result.getvalue(), start + "<doc>content </doc>")
364
365# ===========================================================================
366#
367#   expatreader tests
368#
369# ===========================================================================
370
371xml_test_out = open(TEST_XMLFILE_OUT).read()
372
373class ExpatReaderTest(XmlTestBase):
374
375    # ===== XMLReader support
376
377    def test_expat_file(self):
378        parser = create_parser()
379        result = StringIO()
380        xmlgen = XMLGenerator(result)
381
382        parser.setContentHandler(xmlgen)
383        parser.parse(open(TEST_XMLFILE))
384
385        self.assertEqual(result.getvalue(), xml_test_out)
386
387    # ===== DTDHandler support
388
389    class TestDTDHandler:
390
391        def __init__(self):
392            self._notations = []
393            self._entities  = []
394
395        def notationDecl(self, name, publicId, systemId):
396            self._notations.append((name, publicId, systemId))
397
398        def unparsedEntityDecl(self, name, publicId, systemId, ndata):
399            self._entities.append((name, publicId, systemId, ndata))
400
401    def test_expat_dtdhandler(self):
402        parser = create_parser()
403        handler = self.TestDTDHandler()
404        parser.setDTDHandler(handler)
405
406        parser.feed('<!DOCTYPE doc [\n')
407        parser.feed('  <!ENTITY img SYSTEM "expat.gif" NDATA GIF>\n')
408        parser.feed('  <!NOTATION GIF PUBLIC "-//CompuServe//NOTATION Graphics Interchange Format 89a//EN">\n')
409        parser.feed(']>\n')
410        parser.feed('<doc></doc>')
411        parser.close()
412
413        self.assertEqual(handler._notations,
414            [("GIF", "-//CompuServe//NOTATION Graphics Interchange Format 89a//EN", None)])
415        self.assertEqual(handler._entities, [("img", None, "expat.gif", "GIF")])
416
417    # ===== EntityResolver support
418
419    class TestEntityResolver:
420
421        def resolveEntity(self, publicId, systemId):
422            inpsrc = InputSource()
423            inpsrc.setByteStream(StringIO("<entity/>"))
424            return inpsrc
425
426    def test_expat_entityresolver(self):
427        parser = create_parser()
428        parser.setEntityResolver(self.TestEntityResolver())
429        result = StringIO()
430        parser.setContentHandler(XMLGenerator(result))
431
432        parser.feed('<!DOCTYPE doc [\n')
433        parser.feed('  <!ENTITY test SYSTEM "whatever">\n')
434        parser.feed(']>\n')
435        parser.feed('<doc>&test;</doc>')
436        parser.close()
437
438        self.assertEqual(result.getvalue(), start +
439                         "<doc><entity></entity></doc>")
440
441    # ===== Attributes support
442
443    class AttrGatherer(ContentHandler):
444
445        def startElement(self, name, attrs):
446            self._attrs = attrs
447
448        def startElementNS(self, name, qname, attrs):
449            self._attrs = attrs
450
451    def test_expat_attrs_empty(self):
452        parser = create_parser()
453        gather = self.AttrGatherer()
454        parser.setContentHandler(gather)
455
456        parser.feed("<doc/>")
457        parser.close()
458
459        self.verify_empty_attrs(gather._attrs)
460
461    def test_expat_attrs_wattr(self):
462        parser = create_parser()
463        gather = self.AttrGatherer()
464        parser.setContentHandler(gather)
465
466        parser.feed("<doc attr='val'/>")
467        parser.close()
468
469        self.verify_attrs_wattr(gather._attrs)
470
471    def test_expat_nsattrs_empty(self):
472        parser = create_parser(1)
473        gather = self.AttrGatherer()
474        parser.setContentHandler(gather)
475
476        parser.feed("<doc/>")
477        parser.close()
478
479        self.verify_empty_nsattrs(gather._attrs)
480
481    def test_expat_nsattrs_wattr(self):
482        parser = create_parser(1)
483        gather = self.AttrGatherer()
484        parser.setContentHandler(gather)
485
486        parser.feed("<doc xmlns:ns='%s' ns:attr='val'/>" % ns_uri)
487        parser.close()
488
489        attrs = gather._attrs
490
491        self.assertEqual(attrs.getLength(), 1)
492        self.assertEqual(attrs.getNames(), [(ns_uri, "attr")])
493        self.assertTrue((attrs.getQNames() == [] or
494                         attrs.getQNames() == ["ns:attr"]))
495        self.assertEqual(len(attrs), 1)
496        self.assertTrue(attrs.has_key((ns_uri, "attr")))
497        self.assertEqual(attrs.get((ns_uri, "attr")), "val")
498        self.assertEqual(attrs.get((ns_uri, "attr"), 25), "val")
499        self.assertEqual(attrs.items(), [((ns_uri, "attr"), "val")])
500        self.assertEqual(attrs.values(), ["val"])
501        self.assertEqual(attrs.getValue((ns_uri, "attr")), "val")
502        self.assertEqual(attrs[(ns_uri, "attr")], "val")
503
504    # ===== InputSource support
505
506    def test_expat_inpsource_filename(self):
507        parser = create_parser()
508        result = StringIO()
509        xmlgen = XMLGenerator(result)
510
511        parser.setContentHandler(xmlgen)
512        parser.parse(TEST_XMLFILE)
513
514        self.assertEqual(result.getvalue(), xml_test_out)
515
516    def test_expat_inpsource_sysid(self):
517        parser = create_parser()
518        result = StringIO()
519        xmlgen = XMLGenerator(result)
520
521        parser.setContentHandler(xmlgen)
522        parser.parse(InputSource(TEST_XMLFILE))
523
524        self.assertEqual(result.getvalue(), xml_test_out)
525
526    def test_expat_inpsource_stream(self):
527        parser = create_parser()
528        result = StringIO()
529        xmlgen = XMLGenerator(result)
530
531        parser.setContentHandler(xmlgen)
532        inpsrc = InputSource()
533        inpsrc.setByteStream(open(TEST_XMLFILE))
534        parser.parse(inpsrc)
535
536        self.assertEqual(result.getvalue(), xml_test_out)
537
538    # ===== IncrementalParser support
539
540    def test_expat_incremental(self):
541        result = StringIO()
542        xmlgen = XMLGenerator(result)
543        parser = create_parser()
544        parser.setContentHandler(xmlgen)
545
546        parser.feed("<doc>")
547        parser.feed("</doc>")
548        parser.close()
549
550        self.assertEqual(result.getvalue(), start + "<doc></doc>")
551
552    def test_expat_incremental_reset(self):
553        result = StringIO()
554        xmlgen = XMLGenerator(result)
555        parser = create_parser()
556        parser.setContentHandler(xmlgen)
557
558        parser.feed("<doc>")
559        parser.feed("text")
560
561        result = StringIO()
562        xmlgen = XMLGenerator(result)
563        parser.setContentHandler(xmlgen)
564        parser.reset()
565
566        parser.feed("<doc>")
567        parser.feed("text")
568        parser.feed("</doc>")
569        parser.close()
570
571        self.assertEqual(result.getvalue(), start + "<doc>text</doc>")
572
573    # ===== Locator support
574
575    def test_expat_locator_noinfo(self):
576        result = StringIO()
577        xmlgen = XMLGenerator(result)
578        parser = create_parser()
579        parser.setContentHandler(xmlgen)
580
581        parser.feed("<doc>")
582        parser.feed("</doc>")
583        parser.close()
584
585        self.assertEqual(parser.getSystemId(), None)
586        self.assertEqual(parser.getPublicId(), None)
587        self.assertEqual(parser.getLineNumber(), 1)
588
589    def test_expat_locator_withinfo(self):
590        result = StringIO()
591        xmlgen = XMLGenerator(result)
592        parser = create_parser()
593        parser.setContentHandler(xmlgen)
594        parser.parse(TEST_XMLFILE)
595
596        self.assertEqual(parser.getSystemId(), TEST_XMLFILE)
597        self.assertEqual(parser.getPublicId(), None)
598
599
600# ===========================================================================
601#
602#   error reporting
603#
604# ===========================================================================
605
606class ErrorReportingTest(unittest.TestCase):
607    def test_expat_inpsource_location(self):
608        parser = create_parser()
609        parser.setContentHandler(ContentHandler()) # do nothing
610        source = InputSource()
611        source.setByteStream(StringIO("<foo bar foobar>"))   #ill-formed
612        name = "a file name"
613        source.setSystemId(name)
614        try:
615            parser.parse(source)
616            self.fail()
617        except SAXException, e:
618            self.assertEqual(e.getSystemId(), name)
619
620    def test_expat_incomplete(self):
621        parser = create_parser()
622        parser.setContentHandler(ContentHandler()) # do nothing
623        self.assertRaises(SAXParseException, parser.parse, StringIO("<foo>"))
624
625    def test_sax_parse_exception_str(self):
626        # pass various values from a locator to the SAXParseException to
627        # make sure that the __str__() doesn't fall apart when None is
628        # passed instead of an integer line and column number
629        #
630        # use "normal" values for the locator:
631        str(SAXParseException("message", None,
632                              self.DummyLocator(1, 1)))
633        # use None for the line number:
634        str(SAXParseException("message", None,
635                              self.DummyLocator(None, 1)))
636        # use None for the column number:
637        str(SAXParseException("message", None,
638                              self.DummyLocator(1, None)))
639        # use None for both:
640        str(SAXParseException("message", None,
641                              self.DummyLocator(None, None)))
642
643    class DummyLocator:
644        def __init__(self, lineno, colno):
645            self._lineno = lineno
646            self._colno = colno
647
648        def getPublicId(self):
649            return "pubid"
650
651        def getSystemId(self):
652            return "sysid"
653
654        def getLineNumber(self):
655            return self._lineno
656
657        def getColumnNumber(self):
658            return self._colno
659
660# ===========================================================================
661#
662#   xmlreader tests
663#
664# ===========================================================================
665
666class XmlReaderTest(XmlTestBase):
667
668    # ===== AttributesImpl
669    def test_attrs_empty(self):
670        self.verify_empty_attrs(AttributesImpl({}))
671
672    def test_attrs_wattr(self):
673        self.verify_attrs_wattr(AttributesImpl({"attr" : "val"}))
674
675    def test_nsattrs_empty(self):
676        self.verify_empty_nsattrs(AttributesNSImpl({}, {}))
677
678    def test_nsattrs_wattr(self):
679        attrs = AttributesNSImpl({(ns_uri, "attr") : "val"},
680                                 {(ns_uri, "attr") : "ns:attr"})
681
682        self.assertEqual(attrs.getLength(), 1)
683        self.assertEqual(attrs.getNames(), [(ns_uri, "attr")])
684        self.assertEqual(attrs.getQNames(), ["ns:attr"])
685        self.assertEqual(len(attrs), 1)
686        self.assertTrue(attrs.has_key((ns_uri, "attr")))
687        self.assertEqual(attrs.keys(), [(ns_uri, "attr")])
688        self.assertEqual(attrs.get((ns_uri, "attr")), "val")
689        self.assertEqual(attrs.get((ns_uri, "attr"), 25), "val")
690        self.assertEqual(attrs.items(), [((ns_uri, "attr"), "val")])
691        self.assertEqual(attrs.values(), ["val"])
692        self.assertEqual(attrs.getValue((ns_uri, "attr")), "val")
693        self.assertEqual(attrs.getValueByQName("ns:attr"), "val")
694        self.assertEqual(attrs.getNameByQName("ns:attr"), (ns_uri, "attr"))
695        self.assertEqual(attrs[(ns_uri, "attr")], "val")
696        self.assertEqual(attrs.getQNameByName((ns_uri, "attr")), "ns:attr")
697
698
699    # During the development of Python 2.5, an attempt to move the "xml"
700    # package implementation to a new package ("xmlcore") proved painful.
701    # The goal of this change was to allow applications to be able to
702    # obtain and rely on behavior in the standard library implementation
703    # of the XML support without needing to be concerned about the
704    # availability of the PyXML implementation.
705    #
706    # While the existing import hackery in Lib/xml/__init__.py can cause
707    # PyXML's _xmlpus package to supplant the "xml" package, that only
708    # works because either implementation uses the "xml" package name for
709    # imports.
710    #
711    # The move resulted in a number of problems related to the fact that
712    # the import machinery's "package context" is based on the name that's
713    # being imported rather than the __name__ of the actual package
714    # containment; it wasn't possible for the "xml" package to be replaced
715    # by a simple module that indirected imports to the "xmlcore" package.
716    #
717    # The following two tests exercised bugs that were introduced in that
718    # attempt.  Keeping these tests around will help detect problems with
719    # other attempts to provide reliable access to the standard library's
720    # implementation of the XML support.
721
722    def test_sf_1511497(self):
723        # Bug report: http://www.python.org/sf/1511497
724        import sys
725        old_modules = sys.modules.copy()
726        for modname in sys.modules.keys():
727            if modname.startswith("xml."):
728                del sys.modules[modname]
729        try:
730            import xml.sax.expatreader
731            module = xml.sax.expatreader
732            self.assertEqual(module.__name__, "xml.sax.expatreader")
733        finally:
734            sys.modules.update(old_modules)
735
736    def test_sf_1513611(self):
737        # Bug report: http://www.python.org/sf/1513611
738        sio = StringIO("invalid")
739        parser = make_parser()
740        from xml.sax import SAXParseException
741        self.assertRaises(SAXParseException, parser.parse, sio)
742
743
744def test_main():
745    run_unittest(MakeParserTest,
746                 SaxutilsTest,
747                 XmlgenTest,
748                 ExpatReaderTest,
749                 ErrorReportingTest,
750                 XmlReaderTest)
751
752if __name__ == "__main__":
753    test_main()
754