summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_sax.py
blob: 90f301614c6b161e4be0a5c65f63d80a56034307 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
# regression test for SAX 2.0
# $Id$

from xml.sax import make_parser, ContentHandler, \
                    SAXException, SAXReaderNotAvailable, SAXParseException
import unittest
try:
    make_parser()
except SAXReaderNotAvailable:
    # don't try to test this module if we cannot create a parser
    raise unittest.SkipTest("no XML parsers available")
from xml.sax.saxutils import XMLGenerator, escape, unescape, quoteattr, \
                             XMLFilterBase, prepare_input_source
from xml.sax.expatreader import create_parser
from xml.sax.handler import feature_namespaces
from xml.sax.xmlreader import InputSource, AttributesImpl, AttributesNSImpl
from io import BytesIO, StringIO
import codecs
import gc
import os.path
import shutil
from test import support
from test.support import findfile, run_unittest, TESTFN

TEST_XMLFILE = findfile("test.xml", subdir="xmltestdata")
TEST_XMLFILE_OUT = findfile("test.xml.out", subdir="xmltestdata")
try:
    TEST_XMLFILE.encode("utf-8")
    TEST_XMLFILE_OUT.encode("utf-8")
except UnicodeEncodeError:
    raise unittest.SkipTest("filename is not encodable to utf8")

supports_nonascii_filenames = True
if not os.path.supports_unicode_filenames:
    try:
        support.TESTFN_UNICODE.encode(support.TESTFN_ENCODING)
    except (UnicodeError, TypeError):
        # Either the file system encoding is None, or the file name
        # cannot be encoded in the file system encoding.
        supports_nonascii_filenames = False
requires_nonascii_filenames = unittest.skipUnless(
        supports_nonascii_filenames,
        'Requires non-ascii filenames support')

ns_uri = "http://www.python.org/xml-ns/saxtest/"

class XmlTestBase(unittest.TestCase):
    def verify_empty_attrs(self, attrs):
        self.assertRaises(KeyError, attrs.getValue, "attr")
        self.assertRaises(KeyError, attrs.getValueByQName, "attr")
        self.assertRaises(KeyError, attrs.getNameByQName, "attr")
        self.assertRaises(KeyError, attrs.getQNameByName, "attr")
        self.assertRaises(KeyError, attrs.__getitem__, "attr")
        self.assertEqual(attrs.getLength(), 0)
        self.assertEqual(attrs.getNames(), [])
        self.assertEqual(attrs.getQNames(), [])
        self.assertEqual(len(attrs), 0)
        self.assertNotIn("attr", attrs)
        self.assertEqual(list(attrs.keys()), [])
        self.assertEqual(attrs.get("attrs"), None)
        self.assertEqual(attrs.get("attrs", 25), 25)
        self.assertEqual(list(attrs.items()), [])
        self.assertEqual(list(attrs.values()), [])

    def verify_empty_nsattrs(self, attrs):
        self.assertRaises(KeyError, attrs.getValue, (ns_uri, "attr"))
        self.assertRaises(KeyError, attrs.getValueByQName, "ns:attr")
        self.assertRaises(KeyError, attrs.getNameByQName, "ns:attr")
        self.assertRaises(KeyError, attrs.getQNameByName, (ns_uri, "attr"))
        self.assertRaises(KeyError, attrs.__getitem__, (ns_uri, "attr"))
        self.assertEqual(attrs.getLength(), 0)
        self.assertEqual(attrs.getNames(), [])
        self.assertEqual(attrs.getQNames(), [])
        self.assertEqual(len(attrs), 0)
        self.assertNotIn((ns_uri, "attr"), attrs)
        self.assertEqual(list(attrs.keys()), [])
        self.assertEqual(attrs.get((ns_uri, "attr")), None)
        self.assertEqual(attrs.get((ns_uri, "attr"), 25), 25)
        self.assertEqual(list(attrs.items()), [])
        self.assertEqual(list(attrs.values()), [])

    def verify_attrs_wattr(self, attrs):
        self.assertEqual(attrs.getLength(), 1)
        self.assertEqual(attrs.getNames(), ["attr"])
        self.assertEqual(attrs.getQNames(), ["attr"])
        self.assertEqual(len(attrs), 1)
        self.assertIn("attr", attrs)
        self.assertEqual(list(attrs.keys()), ["attr"])
        self.assertEqual(attrs.get("attr"), "val")
        self.assertEqual(attrs.get("attr", 25), "val")
        self.assertEqual(list(attrs.items()), [("attr", "val")])
        self.assertEqual(list(attrs.values()), ["val"])
        self.assertEqual(attrs.getValue("attr"), "val")
        self.assertEqual(attrs.getValueByQName("attr"), "val")
        self.assertEqual(attrs.getNameByQName("attr"), "attr")
        self.assertEqual(attrs["attr"], "val")
        self.assertEqual(attrs.getQNameByName("attr"), "attr")


def xml_str(doc, encoding=None):
    if encoding is None:
        return doc
    return '<?xml version="1.0" encoding="%s"?>\n%s' % (encoding, doc)

def xml_bytes(doc, encoding, decl_encoding=...):
    if decl_encoding is ...:
        decl_encoding = encoding
    return xml_str(doc, decl_encoding).encode(encoding, 'xmlcharrefreplace')

def make_xml_file(doc, encoding, decl_encoding=...):
    if decl_encoding is ...:
        decl_encoding = encoding
    with open(TESTFN, 'w', encoding=encoding, errors='xmlcharrefreplace') as f:
        f.write(xml_str(doc, decl_encoding))


class ParseTest(unittest.TestCase):
    data = '<money value="$\xa3\u20ac\U0001017b">$\xa3\u20ac\U0001017b</money>'

    def tearDown(self):
        support.unlink(TESTFN)

    def check_parse(self, f):
        from xml.sax import parse
        result = StringIO()
        parse(f, XMLGenerator(result, 'utf-8'))
        self.assertEqual(result.getvalue(), xml_str(self.data, 'utf-8'))

    def test_parse_text(self):
        encodings = ('us-ascii', 'iso-8859-1', 'utf-8',
                     'utf-16', 'utf-16le', 'utf-16be')
        for encoding in encodings:
            self.check_parse(StringIO(xml_str(self.data, encoding)))
            make_xml_file(self.data, encoding)
            with open(TESTFN, 'r', encoding=encoding) as f:
                self.check_parse(f)
            self.check_parse(StringIO(self.data))
            make_xml_file(self.data, encoding, None)
            with open(TESTFN, 'r', encoding=encoding) as f:
                self.check_parse(f)

    def test_parse_bytes(self):
        # UTF-8 is default encoding, US-ASCII is compatible with UTF-8,
        # UTF-16 is autodetected
        encodings = ('us-ascii', 'utf-8', 'utf-16', 'utf-16le', 'utf-16be')
        for encoding in encodings:
            self.check_parse(BytesIO(xml_bytes(self.data, encoding)))
            make_xml_file(self.data, encoding)
            self.check_parse(TESTFN)
            with open(TESTFN, 'rb') as f:
                self.check_parse(f)
            self.check_parse(BytesIO(xml_bytes(self.data, encoding, None)))
            make_xml_file(self.data, encoding, None)
            self.check_parse(TESTFN)
            with open(TESTFN, 'rb') as f:
                self.check_parse(f)
        # accept UTF-8 with BOM
        self.check_parse(BytesIO(xml_bytes(self.data, 'utf-8-sig', 'utf-8')))
        make_xml_file(self.data, 'utf-8-sig', 'utf-8')
        self.check_parse(TESTFN)
        with open(TESTFN, 'rb') as f:
            self.check_parse(f)
        self.check_parse(BytesIO(xml_bytes(self.data, 'utf-8-sig', None)))
        make_xml_file(self.data, 'utf-8-sig', None)
        self.check_parse(TESTFN)
        with open(TESTFN, 'rb') as f:
            self.check_parse(f)
        # accept data with declared encoding
        self.check_parse(BytesIO(xml_bytes(self.data, 'iso-8859-1')))
        make_xml_file(self.data, 'iso-8859-1')
        self.check_parse(TESTFN)
        with open(TESTFN, 'rb') as f:
            self.check_parse(f)
        # fail on non-UTF-8 incompatible data without declared encoding
        with self.assertRaises(SAXException):
            self.check_parse(BytesIO(xml_bytes(self.data, 'iso-8859-1', None)))
        make_xml_file(self.data, 'iso-8859-1', None)
        with support.check_warnings(('unclosed file', ResourceWarning)):
            # XXX Failed parser leaks an opened file.
            with self.assertRaises(SAXException):
                self.check_parse(TESTFN)
            # Collect leaked file.
            gc.collect()
        with open(TESTFN, 'rb') as f:
            with self.assertRaises(SAXException):
                self.check_parse(f)

    def test_parse_InputSource(self):
        # accept data without declared but with explicitly specified encoding
        make_xml_file(self.data, 'iso-8859-1', None)
        with open(TESTFN, 'rb') as f:
            input = InputSource()
            input.setByteStream(f)
            input.setEncoding('iso-8859-1')
            self.check_parse(input)

    def check_parseString(self, s):
        from xml.sax import parseString
        result = StringIO()
        parseString(s, XMLGenerator(result, 'utf-8'))
        self.assertEqual(result.getvalue(), xml_str(self.data, 'utf-8'))

    def test_parseString_bytes(self):
        # UTF-8 is default encoding, US-ASCII is compatible with UTF-8,
        # UTF-16 is autodetected
        encodings = ('us-ascii', 'utf-8', 'utf-16', 'utf-16le', 'utf-16be')
        for encoding in encodings:
            self.check_parseString(xml_bytes(self.data, encoding))
            self.check_parseString(xml_bytes(self.data, encoding, None))
        # accept UTF-8 with BOM
        self.check_parseString(xml_bytes(self.data, 'utf-8-sig', 'utf-8'))
        self.check_parseString(xml_bytes(self.data, 'utf-8-sig', None))
        # accept data with declared encoding
        self.check_parseString(xml_bytes(self.data, 'iso-8859-1'))
        # fail on non-UTF-8 incompatible data without declared encoding
        with self.assertRaises(SAXException):
            self.check_parseString(xml_bytes(self.data, 'iso-8859-1', None))

class MakeParserTest(unittest.TestCase):
    def test_make_parser2(self):
        # Creating parsers several times in a row should succeed.
        # Testing this because there have been failures of this kind
        # before.
        from xml.sax import make_parser
        p = make_parser()
        from xml.sax import make_parser
        p = make_parser()
        from xml.sax import make_parser
        p = make_parser()
        from xml.sax import make_parser
        p = make_parser()
        from xml.sax import make_parser
        p = make_parser()
        from xml.sax import make_parser
        p = make_parser()


# ===========================================================================
#
#   saxutils tests
#
# ===========================================================================

class SaxutilsTest(unittest.TestCase):
    # ===== escape
    def test_escape_basic(self):
        self.assertEqual(escape("Donald Duck & Co"), "Donald Duck &amp; Co")

    def test_escape_all(self):
        self.assertEqual(escape("<Donald Duck & Co>"),
                         "&lt;Donald Duck &amp; Co&gt;")

    def test_escape_extra(self):
        self.assertEqual(escape("Hei på deg", {"å" : "&aring;"}),
                         "Hei p&aring; deg")

    # ===== unescape
    def test_unescape_basic(self):
        self.assertEqual(unescape("Donald Duck &amp; Co"), "Donald Duck & Co")

    def test_unescape_all(self):
        self.assertEqual(unescape("&lt;Donald Duck &amp; Co&gt;"),
                         "<Donald Duck & Co>")

    def test_unescape_extra(self):
        self.assertEqual(unescape("Hei på deg", {"å" : "&aring;"}),
                         "Hei p&aring; deg")

    def test_unescape_amp_extra(self):
        self.assertEqual(unescape("&amp;foo;", {"&foo;": "splat"}), "&foo;")

    # ===== quoteattr
    def test_quoteattr_basic(self):
        self.assertEqual(quoteattr("Donald Duck & Co"),
                         '"Donald Duck &amp; Co"')

    def test_single_quoteattr(self):
        self.assertEqual(quoteattr('Includes "double" quotes'),
                         '\'Includes "double" quotes\'')

    def test_double_quoteattr(self):
        self.assertEqual(quoteattr("Includes 'single' quotes"),
                         "\"Includes 'single' quotes\"")

    def test_single_double_quoteattr(self):
        self.assertEqual(quoteattr("Includes 'single' and \"double\" quotes"),
                         "\"Includes 'single' and &quot;double&quot; quotes\"")

    # ===== make_parser
    def test_make_parser(self):
        # Creating a parser should succeed - it should fall back
        # to the expatreader
        p = make_parser(['xml.parsers.no_such_parser'])


class PrepareInputSourceTest(unittest.TestCase):

    def setUp(self):
        self.file = support.TESTFN
        with open(self.file, "w") as tmp:
            tmp.write("This was read from a file.")

    def tearDown(self):
        support.unlink(self.file)

    def make_byte_stream(self):
        return BytesIO(b"This is a byte stream.")

    def checkContent(self, stream, content):
        self.assertIsNotNone(stream)
        self.assertEqual(stream.read(), content)
        stream.close()


    def test_byte_stream(self):
        # If the source is an InputSource that does not have a character
        # stream but does have a byte stream, use the byte stream.
        src = InputSource(self.file)
        src.setByteStream(self.make_byte_stream())
        prep = prepare_input_source(src)
        self.assertIsNone(prep.getCharacterStream())
        self.checkContent(prep.getByteStream(),
                          b"This is a byte stream.")

    def test_system_id(self):
        # If the source is an InputSource that has neither a character
        # stream nor a byte stream, open the system ID.
        src = InputSource(self.file)
        prep = prepare_input_source(src)
        self.assertIsNone(prep.getCharacterStream())
        self.checkContent(prep.getByteStream(),
                          b"This was read from a file.")

    def test_string(self):
        # If the source is a string, use it as a system ID and open it.
        prep = prepare_input_source(self.file)
        self.assertIsNone(prep.getCharacterStream())
        self.checkContent(prep.getByteStream(),
                          b"This was read from a file.")

    def test_binary_file(self):
        # If the source is a binary file-like object, use it as a byte
        # stream.
        prep = prepare_input_source(self.make_byte_stream())
        self.assertIsNone(prep.getCharacterStream())
        self.checkContent(prep.getByteStream(),
                          b"This is a byte stream.")


# ===== XMLGenerator

class XmlgenTest:
    def test_xmlgen_basic(self):
        result = self.ioclass()
        gen = XMLGenerator(result)
        gen.startDocument()
        gen.startElement("doc", {})
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml("<doc></doc>"))

    def test_xmlgen_basic_empty(self):
        result = self.ioclass()
        gen = XMLGenerator(result, short_empty_elements=True)
        gen.startDocument()
        gen.startElement("doc", {})
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml("<doc/>"))

    def test_xmlgen_content(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startElement("doc", {})
        gen.characters("huhei")
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml("<doc>huhei</doc>"))

    def test_xmlgen_content_empty(self):
        result = self.ioclass()
        gen = XMLGenerator(result, short_empty_elements=True)

        gen.startDocument()
        gen.startElement("doc", {})
        gen.characters("huhei")
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml("<doc>huhei</doc>"))

    def test_xmlgen_pi(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.processingInstruction("test", "data")
        gen.startElement("doc", {})
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(),
            self.xml("<?test data?><doc></doc>"))

    def test_xmlgen_content_escape(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startElement("doc", {})
        gen.characters("<huhei&")
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(),
            self.xml("<doc>&lt;huhei&amp;</doc>"))

    def test_xmlgen_attr_escape(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startElement("doc", {"a": '"'})
        gen.startElement("e", {"a": "'"})
        gen.endElement("e")
        gen.startElement("e", {"a": "'\""})
        gen.endElement("e")
        gen.startElement("e", {"a": "\n\r\t"})
        gen.endElement("e")
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml(
            "<doc a='\"'><e a=\"'\"></e>"
            "<e a=\"'&quot;\"></e>"
            "<e a=\"&#10;&#13;&#9;\"></e></doc>"))

    def test_xmlgen_encoding(self):
        encodings = ('iso-8859-15', 'utf-8', 'utf-8-sig',
                     'utf-16', 'utf-16be', 'utf-16le',
                     'utf-32', 'utf-32be', 'utf-32le')
        for encoding in encodings:
            result = self.ioclass()
            gen = XMLGenerator(result, encoding=encoding)

            gen.startDocument()
            gen.startElement("doc", {"a": '\u20ac'})
            gen.characters("\u20ac")
            gen.endElement("doc")
            gen.endDocument()

            self.assertEqual(result.getvalue(),
                self.xml('<doc a="\u20ac">\u20ac</doc>', encoding=encoding))

    def test_xmlgen_unencodable(self):
        result = self.ioclass()
        gen = XMLGenerator(result, encoding='ascii')

        gen.startDocument()
        gen.startElement("doc", {"a": '\u20ac'})
        gen.characters("\u20ac")
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(),
            self.xml('<doc a="&#8364;">&#8364;</doc>', encoding='ascii'))

    def test_xmlgen_ignorable(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startElement("doc", {})
        gen.ignorableWhitespace(" ")
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml("<doc> </doc>"))

    def test_xmlgen_ignorable_empty(self):
        result = self.ioclass()
        gen = XMLGenerator(result, short_empty_elements=True)

        gen.startDocument()
        gen.startElement("doc", {})
        gen.ignorableWhitespace(" ")
        gen.endElement("doc")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml("<doc> </doc>"))

    def test_xmlgen_encoding_bytes(self):
        encodings = ('iso-8859-15', 'utf-8', 'utf-8-sig',
                     'utf-16', 'utf-16be', 'utf-16le',
                     'utf-32', 'utf-32be', 'utf-32le')
        for encoding in encodings:
            result = self.ioclass()
            gen = XMLGenerator(result, encoding=encoding)

            gen.startDocument()
            gen.startElement("doc", {"a": '\u20ac'})
            gen.characters("\u20ac".encode(encoding))
            gen.ignorableWhitespace(" ".encode(encoding))
            gen.endElement("doc")
            gen.endDocument()

            self.assertEqual(result.getvalue(),
                self.xml('<doc a="\u20ac">\u20ac </doc>', encoding=encoding))

    def test_xmlgen_ns(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startPrefixMapping("ns1", ns_uri)
        gen.startElementNS((ns_uri, "doc"), "ns1:doc", {})
        # add an unqualified name
        gen.startElementNS((None, "udoc"), None, {})
        gen.endElementNS((None, "udoc"), None)
        gen.endElementNS((ns_uri, "doc"), "ns1:doc")
        gen.endPrefixMapping("ns1")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml(
           '<ns1:doc xmlns:ns1="%s"><udoc></udoc></ns1:doc>' %
                                         ns_uri))

    def test_xmlgen_ns_empty(self):
        result = self.ioclass()
        gen = XMLGenerator(result, short_empty_elements=True)

        gen.startDocument()
        gen.startPrefixMapping("ns1", ns_uri)
        gen.startElementNS((ns_uri, "doc"), "ns1:doc", {})
        # add an unqualified name
        gen.startElementNS((None, "udoc"), None, {})
        gen.endElementNS((None, "udoc"), None)
        gen.endElementNS((ns_uri, "doc"), "ns1:doc")
        gen.endPrefixMapping("ns1")
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml(
           '<ns1:doc xmlns:ns1="%s"><udoc/></ns1:doc>' %
                                         ns_uri))

    def test_1463026_1(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startElementNS((None, 'a'), 'a', {(None, 'b'):'c'})
        gen.endElementNS((None, 'a'), 'a')
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml('<a b="c"></a>'))

    def test_1463026_1_empty(self):
        result = self.ioclass()
        gen = XMLGenerator(result, short_empty_elements=True)

        gen.startDocument()
        gen.startElementNS((None, 'a'), 'a', {(None, 'b'):'c'})
        gen.endElementNS((None, 'a'), 'a')
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml('<a b="c"/>'))

    def test_1463026_2(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startPrefixMapping(None, 'qux')
        gen.startElementNS(('qux', 'a'), 'a', {})
        gen.endElementNS(('qux', 'a'), 'a')
        gen.endPrefixMapping(None)
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml('<a xmlns="qux"></a>'))

    def test_1463026_2_empty(self):
        result = self.ioclass()
        gen = XMLGenerator(result, short_empty_elements=True)

        gen.startDocument()
        gen.startPrefixMapping(None, 'qux')
        gen.startElementNS(('qux', 'a'), 'a', {})
        gen.endElementNS(('qux', 'a'), 'a')
        gen.endPrefixMapping(None)
        gen.endDocument()

        self.assertEqual(result.getvalue(), self.xml('<a xmlns="qux"/>'))

    def test_1463026_3(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startPrefixMapping('my', 'qux')
        gen.startElementNS(('qux', 'a'), 'a', {(None, 'b'):'c'})
        gen.endElementNS(('qux', 'a'), 'a')
        gen.endPrefixMapping('my')
        gen.endDocument()

        self.assertEqual(result.getvalue(),
            self.xml('<my:a xmlns:my="qux" b="c"></my:a>'))

    def test_1463026_3_empty(self):
        result = self.ioclass()
        gen = XMLGenerator(result, short_empty_elements=True)

        gen.startDocument()
        gen.startPrefixMapping('my', 'qux')
        gen.startElementNS(('qux', 'a'), 'a', {(None, 'b'):'c'})
        gen.endElementNS(('qux', 'a'), 'a')
        gen.endPrefixMapping('my')
        gen.endDocument()

        self.assertEqual(result.getvalue(),
            self.xml('<my:a xmlns:my="qux" b="c"/>'))

    def test_5027_1(self):
        # The xml prefix (as in xml:lang below) is reserved and bound by
        # definition to http://www.w3.org/XML/1998/namespace.  XMLGenerator had
        # a bug whereby a KeyError is raised because this namespace is missing
        # from a dictionary.
        #
        # This test demonstrates the bug by parsing a document.
        test_xml = StringIO(
            '<?xml version="1.0"?>'
            '<a:g1 xmlns:a="http://example.com/ns">'
             '<a:g2 xml:lang="en">Hello</a:g2>'
            '</a:g1>')

        parser = make_parser()
        parser.setFeature(feature_namespaces, True)
        result = self.ioclass()
        gen = XMLGenerator(result)
        parser.setContentHandler(gen)
        parser.parse(test_xml)

        self.assertEqual(result.getvalue(),
                         self.xml(
                         '<a:g1 xmlns:a="http://example.com/ns">'
                          '<a:g2 xml:lang="en">Hello</a:g2>'
                         '</a:g1>'))

    def test_5027_2(self):
        # The xml prefix (as in xml:lang below) is reserved and bound by
        # definition to http://www.w3.org/XML/1998/namespace.  XMLGenerator had
        # a bug whereby a KeyError is raised because this namespace is missing
        # from a dictionary.
        #
        # This test demonstrates the bug by direct manipulation of the
        # XMLGenerator.
        result = self.ioclass()
        gen = XMLGenerator(result)

        gen.startDocument()
        gen.startPrefixMapping('a', 'http://example.com/ns')
        gen.startElementNS(('http://example.com/ns', 'g1'), 'g1', {})
        lang_attr = {('http://www.w3.org/XML/1998/namespace', 'lang'): 'en'}
        gen.startElementNS(('http://example.com/ns', 'g2'), 'g2', lang_attr)
        gen.characters('Hello')
        gen.endElementNS(('http://example.com/ns', 'g2'), 'g2')
        gen.endElementNS(('http://example.com/ns', 'g1'), 'g1')
        gen.endPrefixMapping('a')
        gen.endDocument()

        self.assertEqual(result.getvalue(),
                         self.xml(
                         '<a:g1 xmlns:a="http://example.com/ns">'
                          '<a:g2 xml:lang="en">Hello</a:g2>'
                         '</a:g1>'))

    def test_no_close_file(self):
        result = self.ioclass()
        def func(out):
            gen = XMLGenerator(out)
            gen.startDocument()
            gen.startElement("doc", {})
        func(result)
        self.assertFalse(result.closed)

    def test_xmlgen_fragment(self):
        result = self.ioclass()
        gen = XMLGenerator(result)

        # Don't call gen.startDocument()
        gen.startElement("foo", {"a": "1.0"})
        gen.characters("Hello")
        gen.endElement("foo")
        gen.startElement("bar", {"b": "2.0"})
        gen.endElement("bar")
        # Don't call gen.endDocument()

        self.assertEqual(result.getvalue(),
            self.xml('<foo a="1.0">Hello</foo><bar b="2.0"></bar>')[len(self.xml('')):])

class StringXmlgenTest(XmlgenTest, unittest.TestCase):
    ioclass = StringIO

    def xml(self, doc, encoding='iso-8859-1'):
        return '<?xml version="1.0" encoding="%s"?>\n%s' % (encoding, doc)

    test_xmlgen_unencodable = None

class BytesXmlgenTest(XmlgenTest, unittest.TestCase):
    ioclass = BytesIO

    def xml(self, doc, encoding='iso-8859-1'):
        return ('<?xml version="1.0" encoding="%s"?>\n%s' %
                (encoding, doc)).encode(encoding, 'xmlcharrefreplace')

class WriterXmlgenTest(BytesXmlgenTest):
    class ioclass(list):
        write = list.append
        closed = False

        def seekable(self):
            return True

        def tell(self):
            # return 0 at start and not 0 after start
            return len(self)

        def getvalue(self):
            return b''.join(self)

class StreamWriterXmlgenTest(XmlgenTest, unittest.TestCase):
    def ioclass(self):
        raw = BytesIO()
        writer = codecs.getwriter('ascii')(raw, 'xmlcharrefreplace')
        writer.getvalue = raw.getvalue
        return writer

    def xml(self, doc, encoding='iso-8859-1'):
        return ('<?xml version="1.0" encoding="%s"?>\n%s' %
                (encoding, doc)).encode('ascii', 'xmlcharrefreplace')

class StreamReaderWriterXmlgenTest(XmlgenTest, unittest.TestCase):
    fname = support.TESTFN + '-codecs'

    def ioclass(self):
        writer = codecs.open(self.fname, 'w', encoding='ascii',
                             errors='xmlcharrefreplace', buffering=0)
        def cleanup():
            writer.close()
            support.unlink(self.fname)
        self.addCleanup(cleanup)
        def getvalue():
            # Windows will not let use reopen without first closing
            writer.close()
            with open(writer.name, 'rb') as f:
                return f.read()
        writer.getvalue = getvalue
        return writer

    def xml(self, doc, encoding='iso-8859-1'):
        return ('<?xml version="1.0" encoding="%s"?>\n%s' %
                (encoding, doc)).encode('ascii', 'xmlcharrefreplace')

start = b'<?xml version="1.0" encoding="iso-8859-1"?>\n'


class XMLFilterBaseTest(unittest.TestCase):
    def test_filter_basic(self):
        result = BytesIO()
        gen = XMLGenerator(result)
        filter = XMLFilterBase()
        filter.setContentHandler(gen)

        filter.startDocument()
        filter.startElement("doc", {})
        filter.characters("content")
        filter.ignorableWhitespace(" ")
        filter.endElement("doc")
        filter.endDocument()

        self.assertEqual(result.getvalue(), start + b"<doc>content </doc>")

# ===========================================================================
#
#   expatreader tests
#
# ===========================================================================

with open(TEST_XMLFILE_OUT, 'rb') as f:
    xml_test_out = f.read()

class ExpatReaderTest(XmlTestBase):

    # ===== XMLReader support

    def test_expat_binary_file(self):
        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        with open(TEST_XMLFILE, 'rb') as f:
            parser.parse(f)

        self.assertEqual(result.getvalue(), xml_test_out)

    def test_expat_text_file(self):
        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        with open(TEST_XMLFILE, 'rt', encoding='iso-8859-1') as f:
            parser.parse(f)

        self.assertEqual(result.getvalue(), xml_test_out)

    @requires_nonascii_filenames
    def test_expat_binary_file_nonascii(self):
        fname = support.TESTFN_UNICODE
        shutil.copyfile(TEST_XMLFILE, fname)
        self.addCleanup(support.unlink, fname)

        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        parser.parse(open(fname, 'rb'))

        self.assertEqual(result.getvalue(), xml_test_out)

    def test_expat_binary_file_bytes_name(self):
        fname = os.fsencode(TEST_XMLFILE)
        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        with open(fname, 'rb') as f:
            parser.parse(f)

        self.assertEqual(result.getvalue(), xml_test_out)

    def test_expat_binary_file_int_name(self):
        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        with open(TEST_XMLFILE, 'rb') as f:
            with open(f.fileno(), 'rb', closefd=False) as f2:
                parser.parse(f2)

        self.assertEqual(result.getvalue(), xml_test_out)

    # ===== DTDHandler support

    class TestDTDHandler:

        def __init__(self):
            self._notations = []
            self._entities  = []

        def notationDecl(self, name, publicId, systemId):
            self._notations.append((name, publicId, systemId))

        def unparsedEntityDecl(self, name, publicId, systemId, ndata):
            self._entities.append((name, publicId, systemId, ndata))

    def test_expat_dtdhandler(self):
        parser = create_parser()
        handler = self.TestDTDHandler()
        parser.setDTDHandler(handler)

        parser.feed('<!DOCTYPE doc [\n')
        parser.feed('  <!ENTITY img SYSTEM "expat.gif" NDATA GIF>\n')
        parser.feed('  <!NOTATION GIF PUBLIC "-//CompuServe//NOTATION Graphics Interchange Format 89a//EN">\n')
        parser.feed(']>\n')
        parser.feed('<doc></doc>')
        parser.close()

        self.assertEqual(handler._notations,
            [("GIF", "-//CompuServe//NOTATION Graphics Interchange Format 89a//EN", None)])
        self.assertEqual(handler._entities, [("img", None, "expat.gif", "GIF")])

    # ===== EntityResolver support

    class TestEntityResolver:

        def resolveEntity(self, publicId, systemId):
            inpsrc = InputSource()
            inpsrc.setByteStream(BytesIO(b"<entity/>"))
            return inpsrc

    def test_expat_entityresolver(self):
        parser = create_parser()
        parser.setEntityResolver(self.TestEntityResolver())
        result = BytesIO()
        parser.setContentHandler(XMLGenerator(result))

        parser.feed('<!DOCTYPE doc [\n')
        parser.feed('  <!ENTITY test SYSTEM "whatever">\n')
        parser.feed(']>\n')
        parser.feed('<doc>&test;</doc>')
        parser.close()

        self.assertEqual(result.getvalue(), start +
                         b"<doc><entity></entity></doc>")

    # ===== Attributes support

    class AttrGatherer(ContentHandler):

        def startElement(self, name, attrs):
            self._attrs = attrs

        def startElementNS(self, name, qname, attrs):
            self._attrs = attrs

    def test_expat_attrs_empty(self):
        parser = create_parser()
        gather = self.AttrGatherer()
        parser.setContentHandler(gather)

        parser.feed("<doc/>")
        parser.close()

        self.verify_empty_attrs(gather._attrs)

    def test_expat_attrs_wattr(self):
        parser = create_parser()
        gather = self.AttrGatherer()
        parser.setContentHandler(gather)

        parser.feed("<doc attr='val'/>")
        parser.close()

        self.verify_attrs_wattr(gather._attrs)

    def test_expat_nsattrs_empty(self):
        parser = create_parser(1)
        gather = self.AttrGatherer()
        parser.setContentHandler(gather)

        parser.feed("<doc/>")
        parser.close()

        self.verify_empty_nsattrs(gather._attrs)

    def test_expat_nsattrs_wattr(self):
        parser = create_parser(1)
        gather = self.AttrGatherer()
        parser.setContentHandler(gather)

        parser.feed("<doc xmlns:ns='%s' ns:attr='val'/>" % ns_uri)
        parser.close()

        attrs = gather._attrs

        self.assertEqual(attrs.getLength(), 1)
        self.assertEqual(attrs.getNames(), [(ns_uri, "attr")])
        self.assertTrue((attrs.getQNames() == [] or
                         attrs.getQNames() == ["ns:attr"]))
        self.assertEqual(len(attrs), 1)
        self.assertIn((ns_uri, "attr"), attrs)
        self.assertEqual(attrs.get((ns_uri, "attr")), "val")
        self.assertEqual(attrs.get((ns_uri, "attr"), 25), "val")
        self.assertEqual(list(attrs.items()), [((ns_uri, "attr"), "val")])
        self.assertEqual(list(attrs.values()), ["val"])
        self.assertEqual(attrs.getValue((ns_uri, "attr")), "val")
        self.assertEqual(attrs[(ns_uri, "attr")], "val")

    # ===== InputSource support

    def test_expat_inpsource_filename(self):
        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        parser.parse(TEST_XMLFILE)

        self.assertEqual(result.getvalue(), xml_test_out)

    def test_expat_inpsource_sysid(self):
        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        parser.parse(InputSource(TEST_XMLFILE))

        self.assertEqual(result.getvalue(), xml_test_out)

    @requires_nonascii_filenames
    def test_expat_inpsource_sysid_nonascii(self):
        fname = support.TESTFN_UNICODE
        shutil.copyfile(TEST_XMLFILE, fname)
        self.addCleanup(support.unlink, fname)

        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        parser.parse(InputSource(fname))

        self.assertEqual(result.getvalue(), xml_test_out)

    def test_expat_inpsource_byte_stream(self):
        parser = create_parser()
        result = BytesIO()
        xmlgen = XMLGenerator(result)

        parser.setContentHandler(xmlgen)
        inpsrc = InputSource()
        with open(TEST_XMLFILE, 'rb') as f:
            inpsrc.setByteStream(f)
            parser.parse(inpsrc)

        self.assertEqual(result.getvalue(), xml_test_out)

    # ===== IncrementalParser support

    def test_expat_incremental(self):
        result = BytesIO()
        xmlgen = XMLGenerator(result)
        parser = create_parser()
        parser.setContentHandler(xmlgen)

        parser.feed("<doc>")
        parser.feed("</doc>")
        parser.close()

        self.assertEqual(result.getvalue(), start + b"<doc></doc>")

    def test_expat_incremental_reset(self):
        result = BytesIO()
        xmlgen = XMLGenerator(result)
        parser = create_parser()
        parser.setContentHandler(xmlgen)

        parser.feed("<doc>")
        parser.feed("text")

        result = BytesIO()
        xmlgen = XMLGenerator(result)
        parser.setContentHandler(xmlgen)
        parser.reset()

        parser.feed("<doc>")
        parser.feed("text")
        parser.feed("</doc>")
        parser.close()

        self.assertEqual(result.getvalue(), start + b"<doc>text</doc>")

    # ===== Locator support

    def test_expat_locator_noinfo(self):
        result = BytesIO()
        xmlgen = XMLGenerator(result)
        parser = create_parser()
        parser.setContentHandler(xmlgen)

        parser.feed("<doc>")
        parser.feed("</doc>")
        parser.close()

        self.assertEqual(parser.getSystemId(), None)
        self.assertEqual(parser.getPublicId(), None)
        self.assertEqual(parser.getLineNumber(), 1)

    def test_expat_locator_withinfo(self):
        result = BytesIO()
        xmlgen = XMLGenerator(result)
        parser = create_parser()
        parser.setContentHandler(xmlgen)
        parser.parse(TEST_XMLFILE)

        self.assertEqual(parser.getSystemId(), TEST_XMLFILE)
        self.assertEqual(parser.getPublicId(), None)

    @requires_nonascii_filenames
    def test_expat_locator_withinfo_nonascii(self):
        fname = support.TESTFN_UNICODE
        shutil.copyfile(TEST_XMLFILE, fname)
        self.addCleanup(support.unlink, fname)

        result = BytesIO()
        xmlgen = XMLGenerator(result)
        parser = create_parser()
        parser.setContentHandler(xmlgen)
        parser.parse(fname)

        self.assertEqual(parser.getSystemId(), fname)
        self.assertEqual(parser.getPublicId(), None)


# ===========================================================================
#
#   error reporting
#
# ===========================================================================

class ErrorReportingTest(unittest.TestCase):
    def test_expat_inpsource_location(self):
        parser = create_parser()
        parser.setContentHandler(ContentHandler()) # do nothing
        source = InputSource()
        source.setByteStream(BytesIO(b"<foo bar foobar>"))   #ill-formed
        name = "a file name"
        source.setSystemId(name)
        try:
            parser.parse(source)
            self.fail()
        except SAXException as e:
            self.assertEqual(e.getSystemId(), name)

    def test_expat_incomplete(self):
        parser = create_parser()
        parser.setContentHandler(ContentHandler()) # do nothing
        self.assertRaises(SAXParseException, parser.parse, StringIO("<foo>"))
        self.assertEqual(parser.getColumnNumber(), 5)
        self.assertEqual(parser.getLineNumber(), 1)

    def test_sax_parse_exception_str(self):
        # pass various values from a locator to the SAXParseException to
        # make sure that the __str__() doesn't fall apart when None is
        # passed instead of an integer line and column number
        #
        # use "normal" values for the locator:
        str(SAXParseException("message", None,
                              self.DummyLocator(1, 1)))
        # use None for the line number:
        str(SAXParseException("message", None,
                              self.DummyLocator(None, 1)))
        # use None for the column number:
        str(SAXParseException("message", None,
                              self.DummyLocator(1, None)))
        # use None for both:
        str(SAXParseException("message", None,
                              self.DummyLocator(None, None)))

    class DummyLocator:
        def __init__(self, lineno, colno):
            self._lineno = lineno
            self._colno = colno

        def getPublicId(self):
            return "pubid"

        def getSystemId(self):
            return "sysid"

        def getLineNumber(self):
            return self._lineno

        def getColumnNumber(self):
            return self._colno

# ===========================================================================
#
#   xmlreader tests
#
# ===========================================================================

class XmlReaderTest(XmlTestBase):

    # ===== AttributesImpl
    def test_attrs_empty(self):
        self.verify_empty_attrs(AttributesImpl({}))

    def test_attrs_wattr(self):
        self.verify_attrs_wattr(AttributesImpl({"attr" : "val"}))

    def test_nsattrs_empty(self):
        self.verify_empty_nsattrs(AttributesNSImpl({}, {}))

    def test_nsattrs_wattr(self):
        attrs = AttributesNSImpl({(ns_uri, "attr") : "val"},
                                 {(ns_uri, "attr") : "ns:attr"})

        self.assertEqual(attrs.getLength(), 1)
        self.assertEqual(attrs.getNames(), [(ns_uri, "attr")])
        self.assertEqual(attrs.getQNames(), ["ns:attr"])
        self.assertEqual(len(attrs), 1)
        self.assertIn((ns_uri, "attr"), attrs)
        self.assertEqual(list(attrs.keys()), [(ns_uri, "attr")])
        self.assertEqual(attrs.get((ns_uri, "attr")), "val")
        self.assertEqual(attrs.get((ns_uri, "attr"), 25), "val")
        self.assertEqual(list(attrs.items()), [((ns_uri, "attr"), "val")])
        self.assertEqual(list(attrs.values()), ["val"])
        self.assertEqual(attrs.getValue((ns_uri, "attr")), "val")
        self.assertEqual(attrs.getValueByQName("ns:attr"), "val")
        self.assertEqual(attrs.getNameByQName("ns:attr"), (ns_uri, "attr"))
        self.assertEqual(attrs[(ns_uri, "attr")], "val")
        self.assertEqual(attrs.getQNameByName((ns_uri, "attr")), "ns:attr")


def test_main():
    run_unittest(MakeParserTest,
                 ParseTest,
                 SaxutilsTest,
                 PrepareInputSourceTest,
                 StringXmlgenTest,
                 BytesXmlgenTest,
                 WriterXmlgenTest,
                 StreamWriterXmlgenTest,
                 StreamReaderWriterXmlgenTest,
                 ExpatReaderTest,
                 ErrorReportingTest,
                 XmlReaderTest)

if __name__ == "__main__":
    test_main()