summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_optparse.py
blob: 811ec3486a908a5d4cb37b69cb8d4ae931038be4 (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
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
#!/usr/bin/python

#
# Test suite for Optik.  Supplied by Johannes Gijsbers
# (taradino@softhome.net) -- translated from the original Optik
# test suite to this PyUnit-based version.
#
# $Id$
#

import sys
import os
import re
import copy
import types
import unittest

from StringIO import StringIO
from pprint import pprint
from test import test_support


from optparse import make_option, Option, IndentedHelpFormatter, \
     TitledHelpFormatter, OptionParser, OptionContainer, OptionGroup, \
     SUPPRESS_HELP, SUPPRESS_USAGE, OptionError, OptionConflictError, \
     BadOptionError, OptionValueError, Values
from optparse import _match_abbrev
from optparse import _parse_num

# Do the right thing with boolean values for all known Python versions.
try:
    True, False
except NameError:
    (True, False) = (1, 0)

retype = type(re.compile(''))

class InterceptedError(Exception):
    def __init__(self,
                 error_message=None,
                 exit_status=None,
                 exit_message=None):
        self.error_message = error_message
        self.exit_status = exit_status
        self.exit_message = exit_message

    def __str__(self):
        return self.error_message or self.exit_message or "intercepted error"

class InterceptingOptionParser(OptionParser):
    def exit(self, status=0, msg=None):
        raise InterceptedError(exit_status=status, exit_message=msg)

    def error(self, msg):
        raise InterceptedError(error_message=msg)


class BaseTest(unittest.TestCase):
    def assertParseOK(self, args, expected_opts, expected_positional_args):
        """Assert the options are what we expected when parsing arguments.

        Otherwise, fail with a nicely formatted message.

        Keyword arguments:
        args -- A list of arguments to parse with OptionParser.
        expected_opts -- The options expected.
        expected_positional_args -- The positional arguments expected.

        Returns the options and positional args for further testing.
        """

        (options, positional_args) = self.parser.parse_args(args)
        optdict = vars(options)

        self.assertEqual(optdict, expected_opts,
                         """
Options are %(optdict)s.
Should be %(expected_opts)s.
Args were %(args)s.""" % locals())

        self.assertEqual(positional_args, expected_positional_args,
                         """
Positional arguments are %(positional_args)s.
Should be %(expected_positional_args)s.
Args were %(args)s.""" % locals ())

        return (options, positional_args)

    def assertRaises(self,
                     func,
                     args,
                     kwargs,
                     expected_exception,
                     expected_message):
        """
        Assert that the expected exception is raised when calling a
        function, and that the right error message is included with
        that exception.

        Arguments:
          func -- the function to call
          args -- positional arguments to `func`
          kwargs -- keyword arguments to `func`
          expected_exception -- exception that should be raised
          expected_message -- expected exception message (or pattern
            if a compiled regex object)

        Returns the exception raised for further testing.
        """
        if args is None:
            args = ()
        if kwargs is None:
            kwargs = {}

        try:
            func(*args, **kwargs)
        except expected_exception as err:
            actual_message = str(err)
            if isinstance(expected_message, retype):
                self.assert_(expected_message.search(actual_message),
                             """\
expected exception message pattern:
/%s/
actual exception message:
'''%s'''
""" % (expected_message.pattern, actual_message))
            else:
                self.assertEqual(actual_message,
                                 expected_message,
                                 """\
expected exception message:
'''%s'''
actual exception message:
'''%s'''
""" % (expected_message, actual_message))

            return err
        else:
            self.fail("""expected exception %(expected_exception)s not raised
called %(func)r
with args %(args)r
and kwargs %(kwargs)r
""" % locals ())


    # -- Assertions used in more than one class --------------------

    def assertParseFail(self, cmdline_args, expected_output):
        """
        Assert the parser fails with the expected message.  Caller
        must ensure that self.parser is an InterceptingOptionParser.
        """
        try:
            self.parser.parse_args(cmdline_args)
        except InterceptedError as err:
            self.assertEqual(err.error_message, expected_output)
        else:
            self.assertFalse("expected parse failure")

    def assertOutput(self,
                     cmdline_args,
                     expected_output,
                     expected_status=0,
                     expected_error=None):
        """Assert the parser prints the expected output on stdout."""
        save_stdout = sys.stdout
        encoding = getattr(save_stdout, 'encoding', None)
        try:
            try:
                sys.stdout = StringIO()
                if encoding:
                    sys.stdout.encoding = encoding
                self.parser.parse_args(cmdline_args)
            finally:
                output = sys.stdout.getvalue()
                sys.stdout = save_stdout

        except InterceptedError as err:
            self.assert_(
                type(output) is types.StringType,
                "expected output to be an ordinary string, not %r"
                % type(output))

            if output != expected_output:
                self.fail("expected: \n'''\n" + expected_output +
                          "'''\nbut got \n'''\n" + output + "'''")
            self.assertEqual(err.exit_status, expected_status)
            self.assertEqual(err.exit_message, expected_error)
        else:
            self.assertFalse("expected parser.exit()")

    def assertTypeError(self, func, expected_message, *args):
        """Assert that TypeError is raised when executing func."""
        self.assertRaises(func, args, None, TypeError, expected_message)

    def assertHelp(self, parser, expected_help):
        actual_help = parser.format_help()
        if actual_help != expected_help:
            raise self.failureException(
                'help text failure; expected:\n"' +
                expected_help + '"; got:\n"' +
                actual_help + '"\n')

# -- Test make_option() aka Option -------------------------------------

# It's not necessary to test correct options here.  All the tests in the
# parser.parse_args() section deal with those, because they're needed
# there.

class TestOptionChecks(BaseTest):
    def setUp(self):
        self.parser = OptionParser(usage=SUPPRESS_USAGE)

    def assertOptionError(self, expected_message, args=[], kwargs={}):
        self.assertRaises(make_option, args, kwargs,
                          OptionError, expected_message)

    def test_opt_string_empty(self):
        self.assertTypeError(make_option,
                             "at least one option string must be supplied")

    def test_opt_string_too_short(self):
        self.assertOptionError(
            "invalid option string 'b': must be at least two characters long",
            ["b"])

    def test_opt_string_short_invalid(self):
        self.assertOptionError(
            "invalid short option string '--': must be "
            "of the form -x, (x any non-dash char)",
            ["--"])

    def test_opt_string_long_invalid(self):
        self.assertOptionError(
            "invalid long option string '---': "
            "must start with --, followed by non-dash",
            ["---"])

    def test_attr_invalid(self):
        self.assertOptionError(
            "option -b: invalid keyword arguments: bar, foo",
            ["-b"], {'foo': None, 'bar': None})

    def test_action_invalid(self):
        self.assertOptionError(
            "option -b: invalid action: 'foo'",
            ["-b"], {'action': 'foo'})

    def test_type_invalid(self):
        self.assertOptionError(
            "option -b: invalid option type: 'foo'",
            ["-b"], {'type': 'foo'})
        self.assertOptionError(
            "option -b: invalid option type: 'tuple'",
            ["-b"], {'type': tuple})

    def test_no_type_for_action(self):
        self.assertOptionError(
            "option -b: must not supply a type for action 'count'",
            ["-b"], {'action': 'count', 'type': 'int'})

    def test_no_choices_list(self):
        self.assertOptionError(
            "option -b/--bad: must supply a list of "
            "choices for type 'choice'",
            ["-b", "--bad"], {'type': "choice"})

    def test_bad_choices_list(self):
        typename = type('').__name__
        self.assertOptionError(
            "option -b/--bad: choices must be a list of "
            "strings ('%s' supplied)" % typename,
            ["-b", "--bad"],
            {'type': "choice", 'choices':"bad choices"})

    def test_no_choices_for_type(self):
        self.assertOptionError(
            "option -b: must not supply choices for type 'int'",
            ["-b"], {'type': 'int', 'choices':"bad"})

    def test_no_const_for_action(self):
        self.assertOptionError(
            "option -b: 'const' must not be supplied for action 'store'",
            ["-b"], {'action': 'store', 'const': 1})

    def test_no_nargs_for_action(self):
        self.assertOptionError(
            "option -b: 'nargs' must not be supplied for action 'count'",
            ["-b"], {'action': 'count', 'nargs': 2})

    def test_callback_not_callable(self):
        self.assertOptionError(
            "option -b: callback not callable: 'foo'",
            ["-b"], {'action': 'callback',
                     'callback': 'foo'})

    def dummy(self):
        pass

    def test_callback_args_no_tuple(self):
        self.assertOptionError(
            "option -b: callback_args, if supplied, "
            "must be a tuple: not 'foo'",
            ["-b"], {'action': 'callback',
                     'callback': self.dummy,
                     'callback_args': 'foo'})

    def test_callback_kwargs_no_dict(self):
        self.assertOptionError(
            "option -b: callback_kwargs, if supplied, "
            "must be a dict: not 'foo'",
            ["-b"], {'action': 'callback',
                     'callback': self.dummy,
                     'callback_kwargs': 'foo'})

    def test_no_callback_for_action(self):
        self.assertOptionError(
            "option -b: callback supplied ('foo') for non-callback option",
            ["-b"], {'action': 'store',
                     'callback': 'foo'})

    def test_no_callback_args_for_action(self):
        self.assertOptionError(
            "option -b: callback_args supplied for non-callback option",
            ["-b"], {'action': 'store',
                     'callback_args': 'foo'})

    def test_no_callback_kwargs_for_action(self):
        self.assertOptionError(
            "option -b: callback_kwargs supplied for non-callback option",
            ["-b"], {'action': 'store',
                     'callback_kwargs': 'foo'})

class TestOptionParser(BaseTest):
    def setUp(self):
        self.parser = OptionParser()
        self.parser.add_option("-v", "--verbose", "-n", "--noisy",
                          action="store_true", dest="verbose")
        self.parser.add_option("-q", "--quiet", "--silent",
                          action="store_false", dest="verbose")

    def test_add_option_no_Option(self):
        self.assertTypeError(self.parser.add_option,
                             "not an Option instance: None", None)

    def test_add_option_invalid_arguments(self):
        self.assertTypeError(self.parser.add_option,
                             "invalid arguments", None, None)

    def test_get_option(self):
        opt1 = self.parser.get_option("-v")
        self.assert_(isinstance(opt1, Option))
        self.assertEqual(opt1._short_opts, ["-v", "-n"])
        self.assertEqual(opt1._long_opts, ["--verbose", "--noisy"])
        self.assertEqual(opt1.action, "store_true")
        self.assertEqual(opt1.dest, "verbose")

    def test_get_option_equals(self):
        opt1 = self.parser.get_option("-v")
        opt2 = self.parser.get_option("--verbose")
        opt3 = self.parser.get_option("-n")
        opt4 = self.parser.get_option("--noisy")
        self.assert_(opt1 is opt2 is opt3 is opt4)

    def test_has_option(self):
        self.assert_(self.parser.has_option("-v"))
        self.assert_(self.parser.has_option("--verbose"))

    def assert_removed(self):
        self.assert_(self.parser.get_option("-v") is None)
        self.assert_(self.parser.get_option("--verbose") is None)
        self.assert_(self.parser.get_option("-n") is None)
        self.assert_(self.parser.get_option("--noisy") is None)

        self.failIf(self.parser.has_option("-v"))
        self.failIf(self.parser.has_option("--verbose"))
        self.failIf(self.parser.has_option("-n"))
        self.failIf(self.parser.has_option("--noisy"))

        self.assert_(self.parser.has_option("-q"))
        self.assert_(self.parser.has_option("--silent"))

    def test_remove_short_opt(self):
        self.parser.remove_option("-n")
        self.assert_removed()

    def test_remove_long_opt(self):
        self.parser.remove_option("--verbose")
        self.assert_removed()

    def test_remove_nonexistent(self):
        self.assertRaises(self.parser.remove_option, ('foo',), None,
                          ValueError, "no such option 'foo'")

    def test_refleak(self):
        # If an OptionParser is carrying around a reference to a large
        # object, various cycles can prevent it from being GC'd in
        # a timely fashion.  destroy() breaks the cycles to ensure stuff
        # can be cleaned up.
        big_thing = [42]
        refcount = sys.getrefcount(big_thing)
        parser = OptionParser()
        parser.add_option("-a", "--aaarggh")
        parser.big_thing = big_thing

        parser.destroy()
        #self.assertEqual(refcount, sys.getrefcount(big_thing))
        del parser
        self.assertEqual(refcount, sys.getrefcount(big_thing))


class TestOptionValues(BaseTest):
    def setUp(self):
        pass

    def test_basics(self):
        values = Values()
        self.assertEqual(vars(values), {})
        self.assertEqual(values, {})
        self.assertNotEqual(values, {"foo": "bar"})
        self.assertNotEqual(values, "")

        dict = {"foo": "bar", "baz": 42}
        values = Values(defaults=dict)
        self.assertEqual(vars(values), dict)
        self.assertEqual(values, dict)
        self.assertNotEqual(values, {"foo": "bar"})
        self.assertNotEqual(values, {})
        self.assertNotEqual(values, "")
        self.assertNotEqual(values, [])


class TestTypeAliases(BaseTest):
    def setUp(self):
        self.parser = OptionParser()

    def test_str_aliases_string(self):
        self.parser.add_option("-s", type="str")
        self.assertEquals(self.parser.get_option("-s").type, "string")

    def test_new_type_object(self):
        self.parser.add_option("-s", type=str)
        self.assertEquals(self.parser.get_option("-s").type, "string")
        self.parser.add_option("-x", type=int)
        self.assertEquals(self.parser.get_option("-x").type, "int")

    def test_old_type_object(self):
        self.parser.add_option("-s", type=types.StringType)
        self.assertEquals(self.parser.get_option("-s").type, "string")
        self.parser.add_option("-x", type=types.IntType)
        self.assertEquals(self.parser.get_option("-x").type, "int")


# Custom type for testing processing of default values.
_time_units = { 's' : 1, 'm' : 60, 'h' : 60*60, 'd' : 60*60*24 }

def _check_duration(option, opt, value):
    try:
        if value[-1].isdigit():
            return int(value)
        else:
            return int(value[:-1]) * _time_units[value[-1]]
    except ValueError as IndexError:
        raise OptionValueError(
            'option %s: invalid duration: %r' % (opt, value))

class DurationOption(Option):
    TYPES = Option.TYPES + ('duration',)
    TYPE_CHECKER = copy.copy(Option.TYPE_CHECKER)
    TYPE_CHECKER['duration'] = _check_duration

class TestDefaultValues(BaseTest):
    def setUp(self):
        self.parser = OptionParser()
        self.parser.add_option("-v", "--verbose", default=True)
        self.parser.add_option("-q", "--quiet", dest='verbose')
        self.parser.add_option("-n", type="int", default=37)
        self.parser.add_option("-m", type="int")
        self.parser.add_option("-s", default="foo")
        self.parser.add_option("-t")
        self.parser.add_option("-u", default=None)
        self.expected = { 'verbose': True,
                          'n': 37,
                          'm': None,
                          's': "foo",
                          't': None,
                          'u': None }

    def test_basic_defaults(self):
        self.assertEqual(self.parser.get_default_values(), self.expected)

    def test_mixed_defaults_post(self):
        self.parser.set_defaults(n=42, m=-100)
        self.expected.update({'n': 42, 'm': -100})
        self.assertEqual(self.parser.get_default_values(), self.expected)

    def test_mixed_defaults_pre(self):
        self.parser.set_defaults(x="barf", y="blah")
        self.parser.add_option("-x", default="frob")
        self.parser.add_option("-y")

        self.expected.update({'x': "frob", 'y': "blah"})
        self.assertEqual(self.parser.get_default_values(), self.expected)

        self.parser.remove_option("-y")
        self.parser.add_option("-y", default=None)
        self.expected.update({'y': None})
        self.assertEqual(self.parser.get_default_values(), self.expected)

    def test_process_default(self):
        self.parser.option_class = DurationOption
        self.parser.add_option("-d", type="duration", default=300)
        self.parser.add_option("-e", type="duration", default="6m")
        self.parser.set_defaults(n="42")
        self.expected.update({'d': 300, 'e': 360, 'n': 42})
        self.assertEqual(self.parser.get_default_values(), self.expected)

        self.parser.set_process_default_values(False)
        self.expected.update({'d': 300, 'e': "6m", 'n': "42"})
        self.assertEqual(self.parser.get_default_values(), self.expected)


class TestProgName(BaseTest):
    """
    Test that %prog expands to the right thing in usage, version,
    and help strings.
    """

    def assertUsage(self, parser, expected_usage):
        self.assertEqual(parser.get_usage(), expected_usage)

    def assertVersion(self, parser, expected_version):
        self.assertEqual(parser.get_version(), expected_version)


    def test_default_progname(self):
        # Make sure that program name taken from sys.argv[0] by default.
        save_argv = sys.argv[:]
        try:
            sys.argv[0] = os.path.join("foo", "bar", "baz.py")
            parser = OptionParser("%prog ...", version="%prog 1.2")
            expected_usage = "Usage: baz.py ...\n"
            self.assertUsage(parser, expected_usage)
            self.assertVersion(parser, "baz.py 1.2")
            self.assertHelp(parser,
                            expected_usage + "\n" +
                            "Options:\n"
                            "  --version   show program's version number and exit\n"
                            "  -h, --help  show this help message and exit\n")
        finally:
            sys.argv[:] = save_argv

    def test_custom_progname(self):
        parser = OptionParser(prog="thingy",
                              version="%prog 0.1",
                              usage="%prog arg arg")
        parser.remove_option("-h")
        parser.remove_option("--version")
        expected_usage = "Usage: thingy arg arg\n"
        self.assertUsage(parser, expected_usage)
        self.assertVersion(parser, "thingy 0.1")
        self.assertHelp(parser, expected_usage + "\n")


class TestExpandDefaults(BaseTest):
    def setUp(self):
        self.parser = OptionParser(prog="test")
        self.help_prefix = """\
Usage: test [options]

Options:
  -h, --help            show this help message and exit
"""
        self.file_help = "read from FILE [default: %default]"
        self.expected_help_file = self.help_prefix + \
            "  -f FILE, --file=FILE  read from FILE [default: foo.txt]\n"
        self.expected_help_none = self.help_prefix + \
            "  -f FILE, --file=FILE  read from FILE [default: none]\n"

    def test_option_default(self):
        self.parser.add_option("-f", "--file",
                               default="foo.txt",
                               help=self.file_help)
        self.assertHelp(self.parser, self.expected_help_file)

    def test_parser_default_1(self):
        self.parser.add_option("-f", "--file",
                               help=self.file_help)
        self.parser.set_default('file', "foo.txt")
        self.assertHelp(self.parser, self.expected_help_file)

    def test_parser_default_2(self):
        self.parser.add_option("-f", "--file",
                               help=self.file_help)
        self.parser.set_defaults(file="foo.txt")
        self.assertHelp(self.parser, self.expected_help_file)

    def test_no_default(self):
        self.parser.add_option("-f", "--file",
                               help=self.file_help)
        self.assertHelp(self.parser, self.expected_help_none)

    def test_default_none_1(self):
        self.parser.add_option("-f", "--file",
                               default=None,
                               help=self.file_help)
        self.assertHelp(self.parser, self.expected_help_none)

    def test_default_none_2(self):
        self.parser.add_option("-f", "--file",
                               help=self.file_help)
        self.parser.set_defaults(file=None)
        self.assertHelp(self.parser, self.expected_help_none)

    def test_float_default(self):
        self.parser.add_option(
            "-p", "--prob",
            help="blow up with probability PROB [default: %default]")
        self.parser.set_defaults(prob=0.43)
        expected_help = self.help_prefix + \
            "  -p PROB, --prob=PROB  blow up with probability PROB [default: 0.43]\n"
        self.assertHelp(self.parser, expected_help)

    def test_alt_expand(self):
        self.parser.add_option("-f", "--file",
                               default="foo.txt",
                               help="read from FILE [default: *DEFAULT*]")
        self.parser.formatter.default_tag = "*DEFAULT*"
        self.assertHelp(self.parser, self.expected_help_file)

    def test_no_expand(self):
        self.parser.add_option("-f", "--file",
                               default="foo.txt",
                               help="read from %default file")
        self.parser.formatter.default_tag = None
        expected_help = self.help_prefix + \
            "  -f FILE, --file=FILE  read from %default file\n"
        self.assertHelp(self.parser, expected_help)


# -- Test parser.parse_args() ------------------------------------------

class TestStandard(BaseTest):
    def setUp(self):
        options = [make_option("-a", type="string"),
                   make_option("-b", "--boo", type="int", dest='boo'),
                   make_option("--foo", action="append")]

        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE,
                                               option_list=options)

    def test_required_value(self):
        self.assertParseFail(["-a"], "-a option requires an argument")

    def test_invalid_integer(self):
        self.assertParseFail(["-b", "5x"],
                             "option -b: invalid integer value: '5x'")

    def test_no_such_option(self):
        self.assertParseFail(["--boo13"], "no such option: --boo13")

    def test_long_invalid_integer(self):
        self.assertParseFail(["--boo=x5"],
                             "option --boo: invalid integer value: 'x5'")

    def test_empty(self):
        self.assertParseOK([], {'a': None, 'boo': None, 'foo': None}, [])

    def test_shortopt_empty_longopt_append(self):
        self.assertParseOK(["-a", "", "--foo=blah", "--foo="],
                           {'a': "", 'boo': None, 'foo': ["blah", ""]},
                           [])

    def test_long_option_append(self):
        self.assertParseOK(["--foo", "bar", "--foo", "", "--foo=x"],
                           {'a': None,
                            'boo': None,
                            'foo': ["bar", "", "x"]},
                           [])

    def test_option_argument_joined(self):
        self.assertParseOK(["-abc"],
                           {'a': "bc", 'boo': None, 'foo': None},
                           [])

    def test_option_argument_split(self):
        self.assertParseOK(["-a", "34"],
                           {'a': "34", 'boo': None, 'foo': None},
                           [])

    def test_option_argument_joined_integer(self):
        self.assertParseOK(["-b34"],
                           {'a': None, 'boo': 34, 'foo': None},
                           [])

    def test_option_argument_split_negative_integer(self):
        self.assertParseOK(["-b", "-5"],
                           {'a': None, 'boo': -5, 'foo': None},
                           [])

    def test_long_option_argument_joined(self):
        self.assertParseOK(["--boo=13"],
                           {'a': None, 'boo': 13, 'foo': None},
                           [])

    def test_long_option_argument_split(self):
        self.assertParseOK(["--boo", "111"],
                           {'a': None, 'boo': 111, 'foo': None},
                           [])

    def test_long_option_short_option(self):
        self.assertParseOK(["--foo=bar", "-axyz"],
                           {'a': 'xyz', 'boo': None, 'foo': ["bar"]},
                           [])

    def test_abbrev_long_option(self):
        self.assertParseOK(["--f=bar", "-axyz"],
                           {'a': 'xyz', 'boo': None, 'foo': ["bar"]},
                           [])

    def test_defaults(self):
        (options, args) = self.parser.parse_args([])
        defaults = self.parser.get_default_values()
        self.assertEqual(vars(defaults), vars(options))

    def test_ambiguous_option(self):
        self.parser.add_option("--foz", action="store",
                               type="string", dest="foo")
        self.assertParseFail(["--f=bar"],
                             "ambiguous option: --f (--foo, --foz?)")


    def test_short_and_long_option_split(self):
        self.assertParseOK(["-a", "xyz", "--foo", "bar"],
                           {'a': 'xyz', 'boo': None, 'foo': ["bar"]},
                           []),

    def test_short_option_split_long_option_append(self):
        self.assertParseOK(["--foo=bar", "-b", "123", "--foo", "baz"],
                           {'a': None, 'boo': 123, 'foo': ["bar", "baz"]},
                           [])

    def test_short_option_split_one_positional_arg(self):
        self.assertParseOK(["-a", "foo", "bar"],
                           {'a': "foo", 'boo': None, 'foo': None},
                           ["bar"]),

    def test_short_option_consumes_separator(self):
        self.assertParseOK(["-a", "--", "foo", "bar"],
                           {'a': "--", 'boo': None, 'foo': None},
                           ["foo", "bar"]),
        self.assertParseOK(["-a", "--", "--foo", "bar"],
                           {'a': "--", 'boo': None, 'foo': ["bar"]},
                           []),

    def test_short_option_joined_and_separator(self):
        self.assertParseOK(["-ab", "--", "--foo", "bar"],
                           {'a': "b", 'boo': None, 'foo': None},
                           ["--foo", "bar"]),

    def test_hyphen_becomes_positional_arg(self):
        self.assertParseOK(["-ab", "-", "--foo", "bar"],
                           {'a': "b", 'boo': None, 'foo': ["bar"]},
                           ["-"])

    def test_no_append_versus_append(self):
        self.assertParseOK(["-b3", "-b", "5", "--foo=bar", "--foo", "baz"],
                           {'a': None, 'boo': 5, 'foo': ["bar", "baz"]},
                           [])

    def test_option_consumes_optionlike_string(self):
        self.assertParseOK(["-a", "-b3"],
                           {'a': "-b3", 'boo': None, 'foo': None},
                           [])

class TestBool(BaseTest):
    def setUp(self):
        options = [make_option("-v",
                               "--verbose",
                               action="store_true",
                               dest="verbose",
                               default=''),
                   make_option("-q",
                               "--quiet",
                               action="store_false",
                               dest="verbose")]
        self.parser = OptionParser(option_list = options)

    def test_bool_default(self):
        self.assertParseOK([],
                           {'verbose': ''},
                           [])

    def test_bool_false(self):
        (options, args) = self.assertParseOK(["-q"],
                                             {'verbose': 0},
                                             [])
        if hasattr(__builtins__, 'False'):
            self.failUnless(options.verbose is False)

    def test_bool_true(self):
        (options, args) = self.assertParseOK(["-v"],
                                             {'verbose': 1},
                                             [])
        if hasattr(__builtins__, 'True'):
            self.failUnless(options.verbose is True)

    def test_bool_flicker_on_and_off(self):
        self.assertParseOK(["-qvq", "-q", "-v"],
                           {'verbose': 1},
                           [])

class TestChoice(BaseTest):
    def setUp(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)
        self.parser.add_option("-c", action="store", type="choice",
                               dest="choice", choices=["one", "two", "three"])

    def test_valid_choice(self):
        self.assertParseOK(["-c", "one", "xyz"],
                           {'choice': 'one'},
                           ["xyz"])

    def test_invalid_choice(self):
        self.assertParseFail(["-c", "four", "abc"],
                             "option -c: invalid choice: 'four' "
                             "(choose from 'one', 'two', 'three')")

    def test_add_choice_option(self):
        self.parser.add_option("-d", "--default",
                               choices=["four", "five", "six"])
        opt = self.parser.get_option("-d")
        self.assertEqual(opt.type, "choice")
        self.assertEqual(opt.action, "store")

class TestCount(BaseTest):
    def setUp(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)
        self.v_opt = make_option("-v", action="count", dest="verbose")
        self.parser.add_option(self.v_opt)
        self.parser.add_option("--verbose", type="int", dest="verbose")
        self.parser.add_option("-q", "--quiet",
                               action="store_const", dest="verbose", const=0)

    def test_empty(self):
        self.assertParseOK([], {'verbose': None}, [])

    def test_count_one(self):
        self.assertParseOK(["-v"], {'verbose': 1}, [])

    def test_count_three(self):
        self.assertParseOK(["-vvv"], {'verbose': 3}, [])

    def test_count_three_apart(self):
        self.assertParseOK(["-v", "-v", "-v"], {'verbose': 3}, [])

    def test_count_override_amount(self):
        self.assertParseOK(["-vvv", "--verbose=2"], {'verbose': 2}, [])

    def test_count_override_quiet(self):
        self.assertParseOK(["-vvv", "--verbose=2", "-q"], {'verbose': 0}, [])

    def test_count_overriding(self):
        self.assertParseOK(["-vvv", "--verbose=2", "-q", "-v"],
                           {'verbose': 1}, [])

    def test_count_interspersed_args(self):
        self.assertParseOK(["--quiet", "3", "-v"],
                           {'verbose': 1},
                           ["3"])

    def test_count_no_interspersed_args(self):
        self.parser.disable_interspersed_args()
        self.assertParseOK(["--quiet", "3", "-v"],
                           {'verbose': 0},
                           ["3", "-v"])

    def test_count_no_such_option(self):
        self.assertParseFail(["-q3", "-v"], "no such option: -3")

    def test_count_option_no_value(self):
        self.assertParseFail(["--quiet=3", "-v"],
                             "--quiet option does not take a value")

    def test_count_with_default(self):
        self.parser.set_default('verbose', 0)
        self.assertParseOK([], {'verbose':0}, [])

    def test_count_overriding_default(self):
        self.parser.set_default('verbose', 0)
        self.assertParseOK(["-vvv", "--verbose=2", "-q", "-v"],
                           {'verbose': 1}, [])

class TestMultipleArgs(BaseTest):
    def setUp(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)
        self.parser.add_option("-p", "--point",
                               action="store", nargs=3, type="float", dest="point")

    def test_nargs_with_positional_args(self):
        self.assertParseOK(["foo", "-p", "1", "2.5", "-4.3", "xyz"],
                           {'point': (1.0, 2.5, -4.3)},
                           ["foo", "xyz"])

    def test_nargs_long_opt(self):
        self.assertParseOK(["--point", "-1", "2.5", "-0", "xyz"],
                           {'point': (-1.0, 2.5, -0.0)},
                           ["xyz"])

    def test_nargs_invalid_float_value(self):
        self.assertParseFail(["-p", "1.0", "2x", "3.5"],
                             "option -p: "
                             "invalid floating-point value: '2x'")

    def test_nargs_required_values(self):
        self.assertParseFail(["--point", "1.0", "3.5"],
                             "--point option requires 3 arguments")

class TestMultipleArgsAppend(BaseTest):
    def setUp(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)
        self.parser.add_option("-p", "--point", action="store", nargs=3,
                               type="float", dest="point")
        self.parser.add_option("-f", "--foo", action="append", nargs=2,
                               type="int", dest="foo")
        self.parser.add_option("-z", "--zero", action="append_const",
                               dest="foo", const=(0, 0))

    def test_nargs_append(self):
        self.assertParseOK(["-f", "4", "-3", "blah", "--foo", "1", "666"],
                           {'point': None, 'foo': [(4, -3), (1, 666)]},
                           ["blah"])

    def test_nargs_append_required_values(self):
        self.assertParseFail(["-f4,3"],
                             "-f option requires 2 arguments")

    def test_nargs_append_simple(self):
        self.assertParseOK(["--foo=3", "4"],
                           {'point': None, 'foo':[(3, 4)]},
                           [])

    def test_nargs_append_const(self):
        self.assertParseOK(["--zero", "--foo", "3", "4", "-z"],
                           {'point': None, 'foo':[(0, 0), (3, 4), (0, 0)]},
                           [])

class TestVersion(BaseTest):
    def test_version(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE,
                                               version="%prog 0.1")
        save_argv = sys.argv[:]
        try:
            sys.argv[0] = os.path.join(os.curdir, "foo", "bar")
            self.assertOutput(["--version"], "bar 0.1\n")
        finally:
            sys.argv[:] = save_argv

    def test_no_version(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)
        self.assertParseFail(["--version"],
                             "no such option: --version")

# -- Test conflicting default values and parser.parse_args() -----------

class TestConflictingDefaults(BaseTest):
    """Conflicting default values: the last one should win."""
    def setUp(self):
        self.parser = OptionParser(option_list=[
            make_option("-v", action="store_true", dest="verbose", default=1)])

    def test_conflict_default(self):
        self.parser.add_option("-q", action="store_false", dest="verbose",
                               default=0)
        self.assertParseOK([], {'verbose': 0}, [])

    def test_conflict_default_none(self):
        self.parser.add_option("-q", action="store_false", dest="verbose",
                               default=None)
        self.assertParseOK([], {'verbose': None}, [])

class TestOptionGroup(BaseTest):
    def setUp(self):
        self.parser = OptionParser(usage=SUPPRESS_USAGE)

    def test_option_group_create_instance(self):
        group = OptionGroup(self.parser, "Spam")
        self.parser.add_option_group(group)
        group.add_option("--spam", action="store_true",
                         help="spam spam spam spam")
        self.assertParseOK(["--spam"], {'spam': 1}, [])

    def test_add_group_no_group(self):
        self.assertTypeError(self.parser.add_option_group,
                             "not an OptionGroup instance: None", None)

    def test_add_group_invalid_arguments(self):
        self.assertTypeError(self.parser.add_option_group,
                             "invalid arguments", None, None)

    def test_add_group_wrong_parser(self):
        group = OptionGroup(self.parser, "Spam")
        group.parser = OptionParser()
        self.assertRaises(self.parser.add_option_group, (group,), None,
                          ValueError, "invalid OptionGroup (wrong parser)")

    def test_group_manipulate(self):
        group = self.parser.add_option_group("Group 2",
                                             description="Some more options")
        group.set_title("Bacon")
        group.add_option("--bacon", type="int")
        self.assert_(self.parser.get_option_group("--bacon"), group)

# -- Test extending and parser.parse_args() ----------------------------

class TestExtendAddTypes(BaseTest):
    def setUp(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE,
                                               option_class=self.MyOption)
        self.parser.add_option("-a", None, type="string", dest="a")
        self.parser.add_option("-f", "--file", type="file", dest="file")

    def tearDown(self):
        if os.path.isdir(test_support.TESTFN):
            os.rmdir(test_support.TESTFN)
        elif os.path.isfile(test_support.TESTFN):
            os.unlink(test_support.TESTFN)

    class MyOption (Option):
        def check_file(option, opt, value):
            if not os.path.exists(value):
                raise OptionValueError("%s: file does not exist" % value)
            elif not os.path.isfile(value):
                raise OptionValueError("%s: not a regular file" % value)
            return value

        TYPES = Option.TYPES + ("file",)
        TYPE_CHECKER = copy.copy(Option.TYPE_CHECKER)
        TYPE_CHECKER["file"] = check_file

    def test_filetype_ok(self):
        open(test_support.TESTFN, "w").close()
        self.assertParseOK(["--file", test_support.TESTFN, "-afoo"],
                           {'file': test_support.TESTFN, 'a': 'foo'},
                           [])

    def test_filetype_noexist(self):
        self.assertParseFail(["--file", test_support.TESTFN, "-afoo"],
                             "%s: file does not exist" %
                             test_support.TESTFN)

    def test_filetype_notfile(self):
        os.mkdir(test_support.TESTFN)
        self.assertParseFail(["--file", test_support.TESTFN, "-afoo"],
                             "%s: not a regular file" %
                             test_support.TESTFN)


class TestExtendAddActions(BaseTest):
    def setUp(self):
        options = [self.MyOption("-a", "--apple", action="extend",
                                 type="string", dest="apple")]
        self.parser = OptionParser(option_list=options)

    class MyOption (Option):
        ACTIONS = Option.ACTIONS + ("extend",)
        STORE_ACTIONS = Option.STORE_ACTIONS + ("extend",)
        TYPED_ACTIONS = Option.TYPED_ACTIONS + ("extend",)

        def take_action(self, action, dest, opt, value, values, parser):
            if action == "extend":
                lvalue = value.split(",")
                values.ensure_value(dest, []).extend(lvalue)
            else:
                Option.take_action(self, action, dest, opt, parser, value,
                                   values)

    def test_extend_add_action(self):
        self.assertParseOK(["-afoo,bar", "--apple=blah"],
                           {'apple': ["foo", "bar", "blah"]},
                           [])

    def test_extend_add_action_normal(self):
        self.assertParseOK(["-a", "foo", "-abar", "--apple=x,y"],
                           {'apple': ["foo", "bar", "x", "y"]},
                           [])

# -- Test callbacks and parser.parse_args() ----------------------------

class TestCallback(BaseTest):
    def setUp(self):
        options = [make_option("-x",
                               None,
                               action="callback",
                               callback=self.process_opt),
                   make_option("-f",
                               "--file",
                               action="callback",
                               callback=self.process_opt,
                               type="string",
                               dest="filename")]
        self.parser = OptionParser(option_list=options)

    def process_opt(self, option, opt, value, parser_):
        if opt == "-x":
            self.assertEqual(option._short_opts, ["-x"])
            self.assertEqual(option._long_opts, [])
            self.assert_(parser_ is self.parser)
            self.assert_(value is None)
            self.assertEqual(vars(parser_.values), {'filename': None})

            parser_.values.x = 42
        elif opt == "--file":
            self.assertEqual(option._short_opts, ["-f"])
            self.assertEqual(option._long_opts, ["--file"])
            self.assert_(parser_ is self.parser)
            self.assertEqual(value, "foo")
            self.assertEqual(vars(parser_.values), {'filename': None, 'x': 42})

            setattr(parser_.values, option.dest, value)
        else:
            self.fail("Unknown option %r in process_opt." % opt)

    def test_callback(self):
        self.assertParseOK(["-x", "--file=foo"],
                           {'filename': "foo", 'x': 42},
                           [])

    def test_callback_help(self):
        # This test was prompted by SF bug #960515 -- the point is
        # not to inspect the help text, just to make sure that
        # format_help() doesn't crash.
        parser = OptionParser(usage=SUPPRESS_USAGE)
        parser.remove_option("-h")
        parser.add_option("-t", "--test", action="callback",
                          callback=lambda: None, type="string",
                          help="foo")

        expected_help = ("Options:\n"
                         "  -t TEST, --test=TEST  foo\n")
        self.assertHelp(parser, expected_help)


class TestCallbackExtraArgs(BaseTest):
    def setUp(self):
        options = [make_option("-p", "--point", action="callback",
                               callback=self.process_tuple,
                               callback_args=(3, int), type="string",
                               dest="points", default=[])]
        self.parser = OptionParser(option_list=options)

    def process_tuple(self, option, opt, value, parser_, len, type):
        self.assertEqual(len, 3)
        self.assert_(type is int)

        if opt == "-p":
            self.assertEqual(value, "1,2,3")
        elif opt == "--point":
            self.assertEqual(value, "4,5,6")

        value = tuple(map(type, value.split(",")))
        getattr(parser_.values, option.dest).append(value)

    def test_callback_extra_args(self):
        self.assertParseOK(["-p1,2,3", "--point", "4,5,6"],
                           {'points': [(1,2,3), (4,5,6)]},
                           [])

class TestCallbackMeddleArgs(BaseTest):
    def setUp(self):
        options = [make_option(str(x), action="callback",
                               callback=self.process_n, dest='things')
                   for x in range(-1, -6, -1)]
        self.parser = OptionParser(option_list=options)

    # Callback that meddles in rargs, largs
    def process_n(self, option, opt, value, parser_):
        # option is -3, -5, etc.
        nargs = int(opt[1:])
        rargs = parser_.rargs
        if len(rargs) < nargs:
            self.fail("Expected %d arguments for %s option." % (nargs, opt))
        dest = parser_.values.ensure_value(option.dest, [])
        dest.append(tuple(rargs[0:nargs]))
        parser_.largs.append(nargs)
        del rargs[0:nargs]

    def test_callback_meddle_args(self):
        self.assertParseOK(["-1", "foo", "-3", "bar", "baz", "qux"],
                           {'things': [("foo",), ("bar", "baz", "qux")]},
                           [1, 3])

    def test_callback_meddle_args_separator(self):
        self.assertParseOK(["-2", "foo", "--"],
                           {'things': [('foo', '--')]},
                           [2])

class TestCallbackManyArgs(BaseTest):
    def setUp(self):
        options = [make_option("-a", "--apple", action="callback", nargs=2,
                               callback=self.process_many, type="string"),
                   make_option("-b", "--bob", action="callback", nargs=3,
                               callback=self.process_many, type="int")]
        self.parser = OptionParser(option_list=options)

    def process_many(self, option, opt, value, parser_):
        if opt == "-a":
            self.assertEqual(value, ("foo", "bar"))
        elif opt == "--apple":
            self.assertEqual(value, ("ding", "dong"))
        elif opt == "-b":
            self.assertEqual(value, (1, 2, 3))
        elif opt == "--bob":
            self.assertEqual(value, (-666, 42, 0))

    def test_many_args(self):
        self.assertParseOK(["-a", "foo", "bar", "--apple", "ding", "dong",
                            "-b", "1", "2", "3", "--bob", "-666", "42",
                            "0"],
                           {"apple": None, "bob": None},
                           [])

class TestCallbackCheckAbbrev(BaseTest):
    def setUp(self):
        self.parser = OptionParser()
        self.parser.add_option("--foo-bar", action="callback",
                               callback=self.check_abbrev)

    def check_abbrev(self, option, opt, value, parser):
        self.assertEqual(opt, "--foo-bar")

    def test_abbrev_callback_expansion(self):
        self.assertParseOK(["--foo"], {}, [])

class TestCallbackVarArgs(BaseTest):
    def setUp(self):
        options = [make_option("-a", type="int", nargs=2, dest="a"),
                   make_option("-b", action="store_true", dest="b"),
                   make_option("-c", "--callback", action="callback",
                               callback=self.variable_args, dest="c")]
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE,
                                               option_list=options)

    def variable_args(self, option, opt, value, parser):
        self.assert_(value is None)
        done = 0
        value = []
        rargs = parser.rargs
        while rargs:
            arg = rargs[0]
            if ((arg[:2] == "--" and len(arg) > 2) or
                (arg[:1] == "-" and len(arg) > 1 and arg[1] != "-")):
                break
            else:
                value.append(arg)
                del rargs[0]
        setattr(parser.values, option.dest, value)

    def test_variable_args(self):
        self.assertParseOK(["-a3", "-5", "--callback", "foo", "bar"],
                           {'a': (3, -5), 'b': None, 'c': ["foo", "bar"]},
                           [])

    def test_consume_separator_stop_at_option(self):
        self.assertParseOK(["-c", "37", "--", "xxx", "-b", "hello"],
                           {'a': None,
                            'b': True,
                            'c': ["37", "--", "xxx"]},
                           ["hello"])

    def test_positional_arg_and_variable_args(self):
        self.assertParseOK(["hello", "-c", "foo", "-", "bar"],
                           {'a': None,
                            'b': None,
                            'c':["foo", "-", "bar"]},
                           ["hello"])

    def test_stop_at_option(self):
        self.assertParseOK(["-c", "foo", "-b"],
                           {'a': None, 'b': True, 'c': ["foo"]},
                           [])

    def test_stop_at_invalid_option(self):
        self.assertParseFail(["-c", "3", "-5", "-a"], "no such option: -5")


# -- Test conflict handling and parser.parse_args() --------------------

class ConflictBase(BaseTest):
    def setUp(self):
        options = [make_option("-v", "--verbose", action="count",
                               dest="verbose", help="increment verbosity")]
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE,
                                               option_list=options)

    def show_version(self, option, opt, value, parser):
        parser.values.show_version = 1

class TestConflict(ConflictBase):
    """Use the default conflict resolution for Optik 1.2: error."""
    def assert_conflict_error(self, func):
        err = self.assertRaises(
            func, ("-v", "--version"), {'action' : "callback",
                                        'callback' : self.show_version,
                                        'help' : "show version"},
            OptionConflictError,
            "option -v/--version: conflicting option string(s): -v")

        self.assertEqual(err.msg, "conflicting option string(s): -v")
        self.assertEqual(err.option_id, "-v/--version")

    def test_conflict_error(self):
        self.assert_conflict_error(self.parser.add_option)

    def test_conflict_error_group(self):
        group = OptionGroup(self.parser, "Group 1")
        self.assert_conflict_error(group.add_option)

    def test_no_such_conflict_handler(self):
        self.assertRaises(
            self.parser.set_conflict_handler, ('foo',), None,
            ValueError, "invalid conflict_resolution value 'foo'")


class TestConflictResolve(ConflictBase):
    def setUp(self):
        ConflictBase.setUp(self)
        self.parser.set_conflict_handler("resolve")
        self.parser.add_option("-v", "--version", action="callback",
                               callback=self.show_version, help="show version")

    def test_conflict_resolve(self):
        v_opt = self.parser.get_option("-v")
        verbose_opt = self.parser.get_option("--verbose")
        version_opt = self.parser.get_option("--version")

        self.assert_(v_opt is version_opt)
        self.assert_(v_opt is not verbose_opt)
        self.assertEqual(v_opt._long_opts, ["--version"])
        self.assertEqual(version_opt._short_opts, ["-v"])
        self.assertEqual(version_opt._long_opts, ["--version"])
        self.assertEqual(verbose_opt._short_opts, [])
        self.assertEqual(verbose_opt._long_opts, ["--verbose"])

    def test_conflict_resolve_help(self):
        self.assertOutput(["-h"], """\
Options:
  --verbose      increment verbosity
  -h, --help     show this help message and exit
  -v, --version  show version
""")

    def test_conflict_resolve_short_opt(self):
        self.assertParseOK(["-v"],
                           {'verbose': None, 'show_version': 1},
                           [])

    def test_conflict_resolve_long_opt(self):
        self.assertParseOK(["--verbose"],
                           {'verbose': 1},
                           [])

    def test_conflict_resolve_long_opts(self):
        self.assertParseOK(["--verbose", "--version"],
                           {'verbose': 1, 'show_version': 1},
                           [])

class TestConflictOverride(BaseTest):
    def setUp(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)
        self.parser.set_conflict_handler("resolve")
        self.parser.add_option("-n", "--dry-run",
                               action="store_true", dest="dry_run",
                               help="don't do anything")
        self.parser.add_option("--dry-run", "-n",
                               action="store_const", const=42, dest="dry_run",
                               help="dry run mode")

    def test_conflict_override_opts(self):
        opt = self.parser.get_option("--dry-run")
        self.assertEqual(opt._short_opts, ["-n"])
        self.assertEqual(opt._long_opts, ["--dry-run"])

    def test_conflict_override_help(self):
        self.assertOutput(["-h"], """\
Options:
  -h, --help     show this help message and exit
  -n, --dry-run  dry run mode
""")

    def test_conflict_override_args(self):
        self.assertParseOK(["-n"],
                           {'dry_run': 42},
                           [])

# -- Other testing. ----------------------------------------------------

_expected_help_basic = """\
Usage: bar.py [options]

Options:
  -a APPLE           throw APPLEs at basket
  -b NUM, --boo=NUM  shout "boo!" NUM times (in order to frighten away all the
                     evil spirits that cause trouble and mayhem)
  --foo=FOO          store FOO in the foo list for later fooing
  -h, --help         show this help message and exit
"""

_expected_help_long_opts_first = """\
Usage: bar.py [options]

Options:
  -a APPLE           throw APPLEs at basket
  --boo=NUM, -b NUM  shout "boo!" NUM times (in order to frighten away all the
                     evil spirits that cause trouble and mayhem)
  --foo=FOO          store FOO in the foo list for later fooing
  --help, -h         show this help message and exit
"""

_expected_help_title_formatter = """\
Usage
=====
  bar.py [options]

Options
=======
-a APPLE           throw APPLEs at basket
--boo=NUM, -b NUM  shout "boo!" NUM times (in order to frighten away all the
                   evil spirits that cause trouble and mayhem)
--foo=FOO          store FOO in the foo list for later fooing
--help, -h         show this help message and exit
"""

_expected_help_short_lines = """\
Usage: bar.py [options]

Options:
  -a APPLE           throw APPLEs at basket
  -b NUM, --boo=NUM  shout "boo!" NUM times (in order to
                     frighten away all the evil spirits
                     that cause trouble and mayhem)
  --foo=FOO          store FOO in the foo list for later
                     fooing
  -h, --help         show this help message and exit
"""

class TestHelp(BaseTest):
    def setUp(self):
        self.parser = self.make_parser(80)

    def make_parser(self, columns):
        options = [
            make_option("-a", type="string", dest='a',
                        metavar="APPLE", help="throw APPLEs at basket"),
            make_option("-b", "--boo", type="int", dest='boo',
                        metavar="NUM",
                        help=
                        "shout \"boo!\" NUM times (in order to frighten away "
                        "all the evil spirits that cause trouble and mayhem)"),
            make_option("--foo", action="append", type="string", dest='foo',
                        help="store FOO in the foo list for later fooing"),
            ]

        # We need to set COLUMNS for the OptionParser constructor, but
        # we must restore its original value -- otherwise, this test
        # screws things up for other tests when it's part of the Python
        # test suite.
        orig_columns = os.environ.get('COLUMNS')
        os.environ['COLUMNS'] = str(columns)
        try:
            return InterceptingOptionParser(option_list=options)
        finally:
            if orig_columns is None:
                del os.environ['COLUMNS']
            else:
                os.environ['COLUMNS'] = orig_columns

    def assertHelpEquals(self, expected_output):
        if type(expected_output) is types.UnicodeType:
            encoding = self.parser._get_encoding(sys.stdout)
            expected_output = expected_output.encode(encoding, "replace")

        save_argv = sys.argv[:]
        try:
            # Make optparse believe bar.py is being executed.
            sys.argv[0] = os.path.join("foo", "bar.py")
            self.assertOutput(["-h"], expected_output)
        finally:
            sys.argv[:] = save_argv

    def test_help(self):
        self.assertHelpEquals(_expected_help_basic)

    def test_help_old_usage(self):
        self.parser.set_usage("Usage: %prog [options]")
        self.assertHelpEquals(_expected_help_basic)

    def test_help_long_opts_first(self):
        self.parser.formatter.short_first = 0
        self.assertHelpEquals(_expected_help_long_opts_first)

    def test_help_title_formatter(self):
        save = os.environ.get("COLUMNS")
        try:
            os.environ["COLUMNS"] = "80"
            self.parser.formatter = TitledHelpFormatter()
            self.assertHelpEquals(_expected_help_title_formatter)
        finally:
            if save is not None:
                os.environ["COLUMNS"] = save
            else:
                del os.environ["COLUMNS"]

    def test_wrap_columns(self):
        # Ensure that wrapping respects $COLUMNS environment variable.
        # Need to reconstruct the parser, since that's the only time
        # we look at $COLUMNS.
        self.parser = self.make_parser(60)
        self.assertHelpEquals(_expected_help_short_lines)

    def test_help_unicode(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)
        self.parser.add_option("-a", action="store_true", help="ol\u00E9!")
        expect = """\
Options:
  -h, --help  show this help message and exit
  -a          ol\u00E9!
"""
        self.assertHelpEquals(expect)

    def test_help_unicode_description(self):
        self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE,
                                               description="ol\u00E9!")
        expect = """\
ol\u00E9!

Options:
  -h, --help  show this help message and exit
"""
        self.assertHelpEquals(expect)

    def test_help_description_groups(self):
        self.parser.set_description(
            "This is the program description for %prog.  %prog has "
            "an option group as well as single options.")

        group = OptionGroup(
            self.parser, "Dangerous Options",
            "Caution: use of these options is at your own risk.  "
            "It is believed that some of them bite.")
        group.add_option("-g", action="store_true", help="Group option.")
        self.parser.add_option_group(group)

        expect = """\
Usage: bar.py [options]

This is the program description for bar.py.  bar.py has an option group as
well as single options.

Options:
  -a APPLE           throw APPLEs at basket
  -b NUM, --boo=NUM  shout "boo!" NUM times (in order to frighten away all the
                     evil spirits that cause trouble and mayhem)
  --foo=FOO          store FOO in the foo list for later fooing
  -h, --help         show this help message and exit

  Dangerous Options:
    Caution: use of these options is at your own risk.  It is believed
    that some of them bite.

    -g               Group option.
"""

        self.assertHelpEquals(expect)

        self.parser.epilog = "Please report bugs to /dev/null."
        self.assertHelpEquals(expect + "\nPlease report bugs to /dev/null.\n")


class TestMatchAbbrev(BaseTest):
    def test_match_abbrev(self):
        self.assertEqual(_match_abbrev("--f",
                                       {"--foz": None,
                                        "--foo": None,
                                        "--fie": None,
                                        "--f": None}),
                         "--f")

    def test_match_abbrev_error(self):
        s = "--f"
        wordmap = {"--foz": None, "--foo": None, "--fie": None}
        self.assertRaises(
            _match_abbrev, (s, wordmap), None,
            BadOptionError, "ambiguous option: --f (--fie, --foo, --foz?)")


class TestParseNumber(BaseTest):
    def setUp(self):
        self.parser = InterceptingOptionParser()
        self.parser.add_option("-n", type=int)
        self.parser.add_option("-l", type=int)

    def test_parse_num_fail(self):
        self.assertRaises(
            _parse_num, ("", int), {},
            ValueError,
            re.compile(r"invalid literal for int().*: '?'?"))
        self.assertRaises(
            _parse_num, ("0xOoops", int), {},
            ValueError,
            re.compile(r"invalid literal for int().*: '?0xOoops'?"))

    def test_parse_num_ok(self):
        self.assertEqual(_parse_num("0", int), 0)
        self.assertEqual(_parse_num("0x10", int), 16)
        self.assertEqual(_parse_num("0XA", int), 10)
        self.assertEqual(_parse_num("010", int), 8)
        self.assertEqual(_parse_num("0b11", int), 3)
        self.assertEqual(_parse_num("0b", int), 0)

    def test_numeric_options(self):
        self.assertParseOK(["-n", "42", "-l", "0x20"],
                           { "n": 42, "l": 0x20 }, [])
        self.assertParseOK(["-n", "0b0101", "-l010"],
                           { "n": 5, "l": 8 }, [])
        self.assertParseFail(["-n008"],
                             "option -n: invalid integer value: '008'")
        self.assertParseFail(["-l0b0123"],
                             "option -l: invalid integer value: '0b0123'")
        self.assertParseFail(["-l", "0x12x"],
                             "option -l: invalid integer value: '0x12x'")


def test_main():
    test_support.run_unittest(__name__)

if __name__ == '__main__':
    test_main()