CoCalc -- test

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code directory
Path: CubicBraidGroup / lib / enum / test_enum.py
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1
import enum
2
import sys
3
import unittest
4
from enum import Enum, IntEnum, unique, EnumMeta
5
from pickle import dumps, loads, PicklingError, HIGHEST_PROTOCOL
6

7
pyver = float('%s.%s' % sys.version_info[:2])
8

9
try:
10
    any
11
except NameError:
12
    def any(iterable):
13
        for element in iterable:
14
            if element:
15
                return True
16
        return False
17

18
try:
19
    unicode
20
except NameError:
21
    unicode = str
22

23
try:
24
    from collections import OrderedDict
25
except ImportError:
26
    OrderedDict = None
27

28
# for pickle tests
29
try:
30
    class Stooges(Enum):
31
        LARRY = 1
32
        CURLY = 2
33
        MOE = 3
34
except Exception:
35
    Stooges = sys.exc_info()[1]
36

37
try:
38
    class IntStooges(int, Enum):
39
        LARRY = 1
40
        CURLY = 2
41
        MOE = 3
42
except Exception:
43
    IntStooges = sys.exc_info()[1]
44

45
try:
46
    class FloatStooges(float, Enum):
47
        LARRY = 1.39
48
        CURLY = 2.72
49
        MOE = 3.142596
50
except Exception:
51
    FloatStooges = sys.exc_info()[1]
52

53
# for pickle test and subclass tests
54
try:
55
    class StrEnum(str, Enum):
56
        'accepts only string values'
57
    class Name(StrEnum):
58
        BDFL = 'Guido van Rossum'
59
        FLUFL = 'Barry Warsaw'
60
except Exception:
61
    Name = sys.exc_info()[1]
62

63
try:
64
    Question = Enum('Question', 'who what when where why', module=__name__)
65
except Exception:
66
    Question = sys.exc_info()[1]
67

68
try:
69
    Answer = Enum('Answer', 'him this then there because')
70
except Exception:
71
    Answer = sys.exc_info()[1]
72

73
try:
74
    Theory = Enum('Theory', 'rule law supposition', qualname='spanish_inquisition')
75
except Exception:
76
    Theory = sys.exc_info()[1]
77

78
# for doctests
79
try:
80
    class Fruit(Enum):
81
        tomato = 1
82
        banana = 2
83
        cherry = 3
84
except Exception:
85
    pass
86

87
def test_pickle_dump_load(assertion, source, target=None,
88
        protocol=(0, HIGHEST_PROTOCOL)):
89
    start, stop = protocol
90
    failures = []
91
    for protocol in range(start, stop+1):
92
        try:
93
            if target is None:
94
                assertion(loads(dumps(source, protocol=protocol)) is source)
95
            else:
96
                assertion(loads(dumps(source, protocol=protocol)), target)
97
        except Exception:
98
            exc, tb = sys.exc_info()[1:]
99
            failures.append('%2d: %s' %(protocol, exc))
100
    if failures:
101
        raise ValueError('Failed with protocols: %s' % ', '.join(failures))
102

103
def test_pickle_exception(assertion, exception, obj,
104
        protocol=(0, HIGHEST_PROTOCOL)):
105
    start, stop = protocol
106
    failures = []
107
    for protocol in range(start, stop+1):
108
        try:
109
            assertion(exception, dumps, obj, protocol=protocol)
110
        except Exception:
111
            exc = sys.exc_info()[1]
112
            failures.append('%d: %s %s' % (protocol, exc.__class__.__name__, exc))
113
    if failures:
114
        raise ValueError('Failed with protocols: %s' % ', '.join(failures))
115

116

117
class TestHelpers(unittest.TestCase):
118
    # _is_descriptor, _is_sunder, _is_dunder
119

120
    def test_is_descriptor(self):
121
        class foo:
122
            pass
123
        for attr in ('__get__','__set__','__delete__'):
124
            obj = foo()
125
            self.assertFalse(enum._is_descriptor(obj))
126
            setattr(obj, attr, 1)
127
            self.assertTrue(enum._is_descriptor(obj))
128

129
    def test_is_sunder(self):
130
        for s in ('_a_', '_aa_'):
131
            self.assertTrue(enum._is_sunder(s))
132

133
        for s in ('a', 'a_', '_a', '__a', 'a__', '__a__', '_a__', '__a_', '_',
134
                '__', '___', '____', '_____',):
135
            self.assertFalse(enum._is_sunder(s))
136

137
    def test_is_dunder(self):
138
        for s in ('__a__', '__aa__'):
139
            self.assertTrue(enum._is_dunder(s))
140
        for s in ('a', 'a_', '_a', '__a', 'a__', '_a_', '_a__', '__a_', '_',
141
                '__', '___', '____', '_____',):
142
            self.assertFalse(enum._is_dunder(s))
143

144

145
class TestEnum(unittest.TestCase):
146
    def setUp(self):
147
        class Season(Enum):
148
            SPRING = 1
149
            SUMMER = 2
150
            AUTUMN = 3
151
            WINTER = 4
152
        self.Season = Season
153

154
        class Konstants(float, Enum):
155
            E = 2.7182818
156
            PI = 3.1415926
157
            TAU = 2 * PI
158
        self.Konstants = Konstants
159

160
        class Grades(IntEnum):
161
            A = 5
162
            B = 4
163
            C = 3
164
            D = 2
165
            F = 0
166
        self.Grades = Grades
167

168
        class Directional(str, Enum):
169
            EAST = 'east'
170
            WEST = 'west'
171
            NORTH = 'north'
172
            SOUTH = 'south'
173
        self.Directional = Directional
174

175
        from datetime import date
176
        class Holiday(date, Enum):
177
            NEW_YEAR = 2013, 1, 1
178
            IDES_OF_MARCH = 2013, 3, 15
179
        self.Holiday = Holiday
180

181
    if pyver >= 3.0:     # do not specify custom `dir` on previous versions
182
        def test_dir_on_class(self):
183
            Season = self.Season
184
            self.assertEqual(
185
                set(dir(Season)),
186
                set(['__class__', '__doc__', '__members__', '__module__',
187
                    'SPRING', 'SUMMER', 'AUTUMN', 'WINTER']),
188
                )
189

190
        def test_dir_on_item(self):
191
            Season = self.Season
192
            self.assertEqual(
193
                set(dir(Season.WINTER)),
194
                set(['__class__', '__doc__', '__module__', 'name', 'value']),
195
                )
196

197
        def test_dir_with_added_behavior(self):
198
            class Test(Enum):
199
                this = 'that'
200
                these = 'those'
201
                def wowser(self):
202
                    return ("Wowser! I'm %s!" % self.name)
203
            self.assertEqual(
204
                    set(dir(Test)),
205
                    set(['__class__', '__doc__', '__members__', '__module__', 'this', 'these']),
206
                    )
207
            self.assertEqual(
208
                    set(dir(Test.this)),
209
                    set(['__class__', '__doc__', '__module__', 'name', 'value', 'wowser']),
210
                    )
211

212
        def test_dir_on_sub_with_behavior_on_super(self):
213
            # see issue22506
214
            class SuperEnum(Enum):
215
                def invisible(self):
216
                    return "did you see me?"
217
            class SubEnum(SuperEnum):
218
                sample = 5
219
            self.assertEqual(
220
                    set(dir(SubEnum.sample)),
221
                    set(['__class__', '__doc__', '__module__', 'name', 'value', 'invisible']),
222
                    )
223

224
    if pyver >= 2.7:    # OrderedDict first available here
225
        def test_members_is_ordereddict_if_ordered(self):
226
            class Ordered(Enum):
227
                __order__ = 'first second third'
228
                first = 'bippity'
229
                second = 'boppity'
230
                third = 'boo'
231
            self.assertTrue(type(Ordered.__members__) is OrderedDict)
232

233
        def test_members_is_ordereddict_if_not_ordered(self):
234
            class Unordered(Enum):
235
                this = 'that'
236
                these = 'those'
237
            self.assertTrue(type(Unordered.__members__) is OrderedDict)
238

239
    if pyver >= 3.0:     # all objects are ordered in Python 2.x
240
        def test_members_is_always_ordered(self):
241
            class AlwaysOrdered(Enum):
242
                first = 1
243
                second = 2
244
                third = 3
245
            self.assertTrue(type(AlwaysOrdered.__members__) is OrderedDict)
246

247
        def test_comparisons(self):
248
            def bad_compare():
249
                Season.SPRING > 4
250
            Season = self.Season
251
            self.assertNotEqual(Season.SPRING, 1)
252
            self.assertRaises(TypeError, bad_compare)
253

254
            class Part(Enum):
255
                SPRING = 1
256
                CLIP = 2
257
                BARREL = 3
258

259
            self.assertNotEqual(Season.SPRING, Part.SPRING)
260
            def bad_compare():
261
                Season.SPRING < Part.CLIP
262
            self.assertRaises(TypeError, bad_compare)
263

264
    def test_enum_in_enum_out(self):
265
        Season = self.Season
266
        self.assertTrue(Season(Season.WINTER) is Season.WINTER)
267

268
    def test_enum_value(self):
269
        Season = self.Season
270
        self.assertEqual(Season.SPRING.value, 1)
271

272
    def test_intenum_value(self):
273
        self.assertEqual(IntStooges.CURLY.value, 2)
274

275
    def test_enum(self):
276
        Season = self.Season
277
        lst = list(Season)
278
        self.assertEqual(len(lst), len(Season))
279
        self.assertEqual(len(Season), 4, Season)
280
        self.assertEqual(
281
            [Season.SPRING, Season.SUMMER, Season.AUTUMN, Season.WINTER], lst)
282

283
        for i, season in enumerate('SPRING SUMMER AUTUMN WINTER'.split()):
284
            i += 1
285
            e = Season(i)
286
            self.assertEqual(e, getattr(Season, season))
287
            self.assertEqual(e.value, i)
288
            self.assertNotEqual(e, i)
289
            self.assertEqual(e.name, season)
290
            self.assertTrue(e in Season)
291
            self.assertTrue(type(e) is Season)
292
            self.assertTrue(isinstance(e, Season))
293
            self.assertEqual(str(e), 'Season.' + season)
294
            self.assertEqual(
295
                    repr(e),
296
                    '<Season.%s: %s>' % (season, i),
297
                    )
298

299
    def test_value_name(self):
300
        Season = self.Season
301
        self.assertEqual(Season.SPRING.name, 'SPRING')
302
        self.assertEqual(Season.SPRING.value, 1)
303
        def set_name(obj, new_value):
304
            obj.name = new_value
305
        def set_value(obj, new_value):
306
            obj.value = new_value
307
        self.assertRaises(AttributeError, set_name, Season.SPRING, 'invierno', )
308
        self.assertRaises(AttributeError, set_value, Season.SPRING, 2)
309

310
    def test_attribute_deletion(self):
311
        class Season(Enum):
312
            SPRING = 1
313
            SUMMER = 2
314
            AUTUMN = 3
315
            WINTER = 4
316

317
            def spam(cls):
318
                pass
319

320
        self.assertTrue(hasattr(Season, 'spam'))
321
        del Season.spam
322
        self.assertFalse(hasattr(Season, 'spam'))
323

324
        self.assertRaises(AttributeError, delattr, Season, 'SPRING')
325
        self.assertRaises(AttributeError, delattr, Season, 'DRY')
326
        self.assertRaises(AttributeError, delattr, Season.SPRING, 'name')
327

328
    def test_invalid_names(self):
329
        def create_bad_class_1():
330
            class Wrong(Enum):
331
                mro = 9
332
        def create_bad_class_2():
333
            class Wrong(Enum):
334
                _reserved_ = 3
335
        self.assertRaises(ValueError, create_bad_class_1)
336
        self.assertRaises(ValueError, create_bad_class_2)
337

338
    # TODO: enable when Python 3.6 is released
339
    # def test_bool(self):
340
    #     class Logic(Enum):
341
    #         true = True
342
    #         false = False
343
    #     self.assertTrue(Logic.true)
344
    #     self.assertFalse(Logic.false)
345

346
    def test_contains(self):
347
        Season = self.Season
348
        self.assertTrue(Season.AUTUMN in Season)
349
        self.assertTrue(3 not in Season)
350

351
        val = Season(3)
352
        self.assertTrue(val in Season)
353

354
        class OtherEnum(Enum):
355
            one = 1; two = 2
356
        self.assertTrue(OtherEnum.two not in Season)
357

358
    if pyver >= 2.6:     # when `format` came into being
359

360
        def test_format_enum(self):
361
            Season = self.Season
362
            self.assertEqual('{0}'.format(Season.SPRING),
363
                             '{0}'.format(str(Season.SPRING)))
364
            self.assertEqual( '{0:}'.format(Season.SPRING),
365
                              '{0:}'.format(str(Season.SPRING)))
366
            self.assertEqual('{0:20}'.format(Season.SPRING),
367
                             '{0:20}'.format(str(Season.SPRING)))
368
            self.assertEqual('{0:^20}'.format(Season.SPRING),
369
                             '{0:^20}'.format(str(Season.SPRING)))
370
            self.assertEqual('{0:>20}'.format(Season.SPRING),
371
                             '{0:>20}'.format(str(Season.SPRING)))
372
            self.assertEqual('{0:<20}'.format(Season.SPRING),
373
                             '{0:<20}'.format(str(Season.SPRING)))
374

375
        def test_format_enum_custom(self):
376
            class TestFloat(float, Enum):
377
                one = 1.0
378
                two = 2.0
379
                def __format__(self, spec):
380
                    return 'TestFloat success!'
381
            self.assertEqual('{0}'.format(TestFloat.one), 'TestFloat success!')
382

383
        def assertFormatIsValue(self, spec, member):
384
            self.assertEqual(spec.format(member), spec.format(member.value))
385

386
        def test_format_enum_date(self):
387
            Holiday = self.Holiday
388
            self.assertFormatIsValue('{0}', Holiday.IDES_OF_MARCH)
389
            self.assertFormatIsValue('{0:}', Holiday.IDES_OF_MARCH)
390
            self.assertFormatIsValue('{0:20}', Holiday.IDES_OF_MARCH)
391
            self.assertFormatIsValue('{0:^20}', Holiday.IDES_OF_MARCH)
392
            self.assertFormatIsValue('{0:>20}', Holiday.IDES_OF_MARCH)
393
            self.assertFormatIsValue('{0:<20}', Holiday.IDES_OF_MARCH)
394
            self.assertFormatIsValue('{0:%Y %m}', Holiday.IDES_OF_MARCH)
395
            self.assertFormatIsValue('{0:%Y %m %M:00}', Holiday.IDES_OF_MARCH)
396

397
        def test_format_enum_float(self):
398
            Konstants = self.Konstants
399
            self.assertFormatIsValue('{0}', Konstants.TAU)
400
            self.assertFormatIsValue('{0:}', Konstants.TAU)
401
            self.assertFormatIsValue('{0:20}', Konstants.TAU)
402
            self.assertFormatIsValue('{0:^20}', Konstants.TAU)
403
            self.assertFormatIsValue('{0:>20}', Konstants.TAU)
404
            self.assertFormatIsValue('{0:<20}', Konstants.TAU)
405
            self.assertFormatIsValue('{0:n}', Konstants.TAU)
406
            self.assertFormatIsValue('{0:5.2}', Konstants.TAU)
407
            self.assertFormatIsValue('{0:f}', Konstants.TAU)
408

409
        def test_format_enum_int(self):
410
            Grades = self.Grades
411
            self.assertFormatIsValue('{0}', Grades.C)
412
            self.assertFormatIsValue('{0:}', Grades.C)
413
            self.assertFormatIsValue('{0:20}', Grades.C)
414
            self.assertFormatIsValue('{0:^20}', Grades.C)
415
            self.assertFormatIsValue('{0:>20}', Grades.C)
416
            self.assertFormatIsValue('{0:<20}', Grades.C)
417
            self.assertFormatIsValue('{0:+}', Grades.C)
418
            self.assertFormatIsValue('{0:08X}', Grades.C)
419
            self.assertFormatIsValue('{0:b}', Grades.C)
420

421
        def test_format_enum_str(self):
422
            Directional = self.Directional
423
            self.assertFormatIsValue('{0}', Directional.WEST)
424
            self.assertFormatIsValue('{0:}', Directional.WEST)
425
            self.assertFormatIsValue('{0:20}', Directional.WEST)
426
            self.assertFormatIsValue('{0:^20}', Directional.WEST)
427
            self.assertFormatIsValue('{0:>20}', Directional.WEST)
428
            self.assertFormatIsValue('{0:<20}', Directional.WEST)
429

430
    def test_hash(self):
431
        Season = self.Season
432
        dates = {}
433
        dates[Season.WINTER] = '1225'
434
        dates[Season.SPRING] = '0315'
435
        dates[Season.SUMMER] = '0704'
436
        dates[Season.AUTUMN] = '1031'
437
        self.assertEqual(dates[Season.AUTUMN], '1031')
438

439
    def test_enum_duplicates(self):
440
        __order__ = "SPRING SUMMER AUTUMN WINTER"
441
        class Season(Enum):
442
            SPRING = 1
443
            SUMMER = 2
444
            AUTUMN = FALL = 3
445
            WINTER = 4
446
            ANOTHER_SPRING = 1
447
        lst = list(Season)
448
        self.assertEqual(
449
            lst,
450
            [Season.SPRING, Season.SUMMER,
451
             Season.AUTUMN, Season.WINTER,
452
            ])
453
        self.assertTrue(Season.FALL is Season.AUTUMN)
454
        self.assertEqual(Season.FALL.value, 3)
455
        self.assertEqual(Season.AUTUMN.value, 3)
456
        self.assertTrue(Season(3) is Season.AUTUMN)
457
        self.assertTrue(Season(1) is Season.SPRING)
458
        self.assertEqual(Season.FALL.name, 'AUTUMN')
459
        self.assertEqual(
460
                set([k for k,v in Season.__members__.items() if v.name != k]),
461
                set(['FALL', 'ANOTHER_SPRING']),
462
                )
463

464
    if pyver >= 3.0:
465
        cls = vars()
466
        result = {'Enum':Enum}
467
        exec("""def test_duplicate_name(self):
468
            with self.assertRaises(TypeError):
469
                class Color(Enum):
470
                    red = 1
471
                    green = 2
472
                    blue = 3
473
                    red = 4
474

475
            with self.assertRaises(TypeError):
476
                class Color(Enum):
477
                    red = 1
478
                    green = 2
479
                    blue = 3
480
                    def red(self):
481
                        return 'red'
482

483
            with self.assertRaises(TypeError):
484
                class Color(Enum):
485
                    @property
486

487
                    def red(self):
488
                        return 'redder'
489
                    red = 1
490
                    green = 2
491
                    blue = 3""",
492
            result)
493
        cls['test_duplicate_name'] = result['test_duplicate_name']
494

495
    def test_enum_with_value_name(self):
496
        class Huh(Enum):
497
            name = 1
498
            value = 2
499
        self.assertEqual(
500
            list(Huh),
501
            [Huh.name, Huh.value],
502
            )
503
        self.assertTrue(type(Huh.name) is Huh)
504
        self.assertEqual(Huh.name.name, 'name')
505
        self.assertEqual(Huh.name.value, 1)
506

507
    def test_intenum_from_scratch(self):
508
        class phy(int, Enum):
509
            pi = 3
510
            tau = 2 * pi
511
        self.assertTrue(phy.pi < phy.tau)
512

513
    def test_intenum_inherited(self):
514
        class IntEnum(int, Enum):
515
            pass
516
        class phy(IntEnum):
517
            pi = 3
518
            tau = 2 * pi
519
        self.assertTrue(phy.pi < phy.tau)
520

521
    def test_floatenum_from_scratch(self):
522
        class phy(float, Enum):
523
            pi = 3.1415926
524
            tau = 2 * pi
525
        self.assertTrue(phy.pi < phy.tau)
526

527
    def test_floatenum_inherited(self):
528
        class FloatEnum(float, Enum):
529
            pass
530
        class phy(FloatEnum):
531
            pi = 3.1415926
532
            tau = 2 * pi
533
        self.assertTrue(phy.pi < phy.tau)
534

535
    def test_strenum_from_scratch(self):
536
        class phy(str, Enum):
537
            pi = 'Pi'
538
            tau = 'Tau'
539
        self.assertTrue(phy.pi < phy.tau)
540

541
    def test_strenum_inherited(self):
542
        class StrEnum(str, Enum):
543
            pass
544
        class phy(StrEnum):
545
            pi = 'Pi'
546
            tau = 'Tau'
547
        self.assertTrue(phy.pi < phy.tau)
548

549
    def test_intenum(self):
550
        class WeekDay(IntEnum):
551
            SUNDAY = 1
552
            MONDAY = 2
553
            TUESDAY = 3
554
            WEDNESDAY = 4
555
            THURSDAY = 5
556
            FRIDAY = 6
557
            SATURDAY = 7
558

559
        self.assertEqual(['a', 'b', 'c'][WeekDay.MONDAY], 'c')
560
        self.assertEqual([i for i in range(WeekDay.TUESDAY)], [0, 1, 2])
561

562
        lst = list(WeekDay)
563
        self.assertEqual(len(lst), len(WeekDay))
564
        self.assertEqual(len(WeekDay), 7)
565
        target = 'SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY'
566
        target = target.split()
567
        for i, weekday in enumerate(target):
568
            i += 1
569
            e = WeekDay(i)
570
            self.assertEqual(e, i)
571
            self.assertEqual(int(e), i)
572
            self.assertEqual(e.name, weekday)
573
            self.assertTrue(e in WeekDay)
574
            self.assertEqual(lst.index(e)+1, i)
575
            self.assertTrue(0 < e < 8)
576
            self.assertTrue(type(e) is WeekDay)
577
            self.assertTrue(isinstance(e, int))
578
            self.assertTrue(isinstance(e, Enum))
579

580
    def test_intenum_duplicates(self):
581
        class WeekDay(IntEnum):
582
            __order__ = 'SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY'
583
            SUNDAY = 1
584
            MONDAY = 2
585
            TUESDAY = TEUSDAY = 3
586
            WEDNESDAY = 4
587
            THURSDAY = 5
588
            FRIDAY = 6
589
            SATURDAY = 7
590
        self.assertTrue(WeekDay.TEUSDAY is WeekDay.TUESDAY)
591
        self.assertEqual(WeekDay(3).name, 'TUESDAY')
592
        self.assertEqual([k for k,v in WeekDay.__members__.items()
593
                if v.name != k], ['TEUSDAY', ])
594

595
    def test_pickle_enum(self):
596
        if isinstance(Stooges, Exception):
597
            raise Stooges
598
        test_pickle_dump_load(self.assertTrue, Stooges.CURLY)
599
        test_pickle_dump_load(self.assertTrue, Stooges)
600

601
    def test_pickle_int(self):
602
        if isinstance(IntStooges, Exception):
603
            raise IntStooges
604
        test_pickle_dump_load(self.assertTrue, IntStooges.CURLY)
605
        test_pickle_dump_load(self.assertTrue, IntStooges)
606

607
    def test_pickle_float(self):
608
        if isinstance(FloatStooges, Exception):
609
            raise FloatStooges
610
        test_pickle_dump_load(self.assertTrue, FloatStooges.CURLY)
611
        test_pickle_dump_load(self.assertTrue, FloatStooges)
612

613
    def test_pickle_enum_function(self):
614
        if isinstance(Answer, Exception):
615
            raise Answer
616
        test_pickle_dump_load(self.assertTrue, Answer.him)
617
        test_pickle_dump_load(self.assertTrue, Answer)
618

619
    def test_pickle_enum_function_with_module(self):
620
        if isinstance(Question, Exception):
621
            raise Question
622
        test_pickle_dump_load(self.assertTrue, Question.who)
623
        test_pickle_dump_load(self.assertTrue, Question)
624

625
    if pyver == 3.4:
626
        def test_class_nested_enum_and_pickle_protocol_four(self):
627
            # would normally just have this directly in the class namespace
628
            class NestedEnum(Enum):
629
                twigs = 'common'
630
                shiny = 'rare'
631

632
            self.__class__.NestedEnum = NestedEnum
633
            self.NestedEnum.__qualname__ = '%s.NestedEnum' % self.__class__.__name__
634
            test_pickle_exception(
635
                    self.assertRaises, PicklingError, self.NestedEnum.twigs,
636
                    protocol=(0, 3))
637
            test_pickle_dump_load(self.assertTrue, self.NestedEnum.twigs,
638
                    protocol=(4, HIGHEST_PROTOCOL))
639

640
    elif pyver == 3.5:
641
        def test_class_nested_enum_and_pickle_protocol_four(self):
642
            # would normally just have this directly in the class namespace
643
            class NestedEnum(Enum):
644
                twigs = 'common'
645
                shiny = 'rare'
646

647
            self.__class__.NestedEnum = NestedEnum
648
            self.NestedEnum.__qualname__ = '%s.NestedEnum' % self.__class__.__name__
649
            test_pickle_dump_load(self.assertTrue, self.NestedEnum.twigs,
650
                    protocol=(0, HIGHEST_PROTOCOL))
651

652
    def test_exploding_pickle(self):
653
        BadPickle = Enum('BadPickle', 'dill sweet bread-n-butter')
654
        enum._make_class_unpicklable(BadPickle)
655
        globals()['BadPickle'] = BadPickle
656
        test_pickle_exception(self.assertRaises, TypeError, BadPickle.dill)
657
        test_pickle_exception(self.assertRaises, PicklingError, BadPickle)
658

659
    def test_string_enum(self):
660
        class SkillLevel(str, Enum):
661
            master = 'what is the sound of one hand clapping?'
662
            journeyman = 'why did the chicken cross the road?'
663
            apprentice = 'knock, knock!'
664
        self.assertEqual(SkillLevel.apprentice, 'knock, knock!')
665

666
    def test_getattr_getitem(self):
667
        class Period(Enum):
668
            morning = 1
669
            noon = 2
670
            evening = 3
671
            night = 4
672
        self.assertTrue(Period(2) is Period.noon)
673
        self.assertTrue(getattr(Period, 'night') is Period.night)
674
        self.assertTrue(Period['morning'] is Period.morning)
675

676
    def test_getattr_dunder(self):
677
        Season = self.Season
678
        self.assertTrue(getattr(Season, '__hash__'))
679

680
    def test_iteration_order(self):
681
        class Season(Enum):
682
            __order__ = 'SUMMER WINTER AUTUMN SPRING'
683
            SUMMER = 2
684
            WINTER = 4
685
            AUTUMN = 3
686
            SPRING = 1
687
        self.assertEqual(
688
                list(Season),
689
                [Season.SUMMER, Season.WINTER, Season.AUTUMN, Season.SPRING],
690
                )
691

692
    def test_iteration_order_reversed(self):
693
        self.assertEqual(
694
                list(reversed(self.Season)),
695
                [self.Season.WINTER, self.Season.AUTUMN, self.Season.SUMMER,
696
                 self.Season.SPRING]
697
                )
698

699
    def test_iteration_order_with_unorderable_values(self):
700
        class Complex(Enum):
701
            a = complex(7, 9)
702
            b = complex(3.14, 2)
703
            c = complex(1, -1)
704
            d = complex(-77, 32)
705
        self.assertEqual(
706
                list(Complex),
707
                [Complex.a, Complex.b, Complex.c, Complex.d],
708
                )
709

710
    def test_programatic_function_string(self):
711
        SummerMonth = Enum('SummerMonth', 'june july august')
712
        lst = list(SummerMonth)
713
        self.assertEqual(len(lst), len(SummerMonth))
714
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
715
        self.assertEqual(
716
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
717
                lst,
718
                )
719
        for i, month in enumerate('june july august'.split()):
720
            i += 1
721
            e = SummerMonth(i)
722
            self.assertEqual(int(e.value), i)
723
            self.assertNotEqual(e, i)
724
            self.assertEqual(e.name, month)
725
            self.assertTrue(e in SummerMonth)
726
            self.assertTrue(type(e) is SummerMonth)
727

728
    def test_programatic_function_string_with_start(self):
729
        SummerMonth = Enum('SummerMonth', 'june july august', start=10)
730
        lst = list(SummerMonth)
731
        self.assertEqual(len(lst), len(SummerMonth))
732
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
733
        self.assertEqual(
734
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
735
                lst,
736
                )
737
        for i, month in enumerate('june july august'.split(), 10):
738
            e = SummerMonth(i)
739
            self.assertEqual(int(e.value), i)
740
            self.assertNotEqual(e, i)
741
            self.assertEqual(e.name, month)
742
            self.assertTrue(e in SummerMonth)
743
            self.assertTrue(type(e) is SummerMonth)
744

745
    def test_programatic_function_string_list(self):
746
        SummerMonth = Enum('SummerMonth', ['june', 'july', 'august'])
747
        lst = list(SummerMonth)
748
        self.assertEqual(len(lst), len(SummerMonth))
749
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
750
        self.assertEqual(
751
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
752
                lst,
753
                )
754
        for i, month in enumerate('june july august'.split()):
755
            i += 1
756
            e = SummerMonth(i)
757
            self.assertEqual(int(e.value), i)
758
            self.assertNotEqual(e, i)
759
            self.assertEqual(e.name, month)
760
            self.assertTrue(e in SummerMonth)
761
            self.assertTrue(type(e) is SummerMonth)
762

763
    def test_programatic_function_string_list_with_start(self):
764
        SummerMonth = Enum('SummerMonth', ['june', 'july', 'august'], start=20)
765
        lst = list(SummerMonth)
766
        self.assertEqual(len(lst), len(SummerMonth))
767
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
768
        self.assertEqual(
769
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
770
                lst,
771
                )
772
        for i, month in enumerate('june july august'.split(), 20):
773
            e = SummerMonth(i)
774
            self.assertEqual(int(e.value), i)
775
            self.assertNotEqual(e, i)
776
            self.assertEqual(e.name, month)
777
            self.assertTrue(e in SummerMonth)
778
            self.assertTrue(type(e) is SummerMonth)
779

780
    def test_programatic_function_iterable(self):
781
        SummerMonth = Enum(
782
                'SummerMonth',
783
                (('june', 1), ('july', 2), ('august', 3))
784
                )
785
        lst = list(SummerMonth)
786
        self.assertEqual(len(lst), len(SummerMonth))
787
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
788
        self.assertEqual(
789
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
790
                lst,
791
                )
792
        for i, month in enumerate('june july august'.split()):
793
            i += 1
794
            e = SummerMonth(i)
795
            self.assertEqual(int(e.value), i)
796
            self.assertNotEqual(e, i)
797
            self.assertEqual(e.name, month)
798
            self.assertTrue(e in SummerMonth)
799
            self.assertTrue(type(e) is SummerMonth)
800

801
    def test_programatic_function_from_dict(self):
802
        SummerMonth = Enum(
803
                'SummerMonth',
804
                dict((('june', 1), ('july', 2), ('august', 3)))
805
                )
806
        lst = list(SummerMonth)
807
        self.assertEqual(len(lst), len(SummerMonth))
808
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
809
        if pyver < 3.0:
810
            self.assertEqual(
811
                    [SummerMonth.june, SummerMonth.july, SummerMonth.august],
812
                    lst,
813
                    )
814
        for i, month in enumerate('june july august'.split()):
815
            i += 1
816
            e = SummerMonth(i)
817
            self.assertEqual(int(e.value), i)
818
            self.assertNotEqual(e, i)
819
            self.assertEqual(e.name, month)
820
            self.assertTrue(e in SummerMonth)
821
            self.assertTrue(type(e) is SummerMonth)
822

823
    def test_programatic_function_type(self):
824
        SummerMonth = Enum('SummerMonth', 'june july august', type=int)
825
        lst = list(SummerMonth)
826
        self.assertEqual(len(lst), len(SummerMonth))
827
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
828
        self.assertEqual(
829
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
830
                lst,
831
                )
832
        for i, month in enumerate('june july august'.split()):
833
            i += 1
834
            e = SummerMonth(i)
835
            self.assertEqual(e, i)
836
            self.assertEqual(e.name, month)
837
            self.assertTrue(e in SummerMonth)
838
            self.assertTrue(type(e) is SummerMonth)
839

840
    def test_programatic_function_type_with_start(self):
841
        SummerMonth = Enum('SummerMonth', 'june july august', type=int, start=30)
842
        lst = list(SummerMonth)
843
        self.assertEqual(len(lst), len(SummerMonth))
844
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
845
        self.assertEqual(
846
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
847
                lst,
848
                )
849
        for i, month in enumerate('june july august'.split(), 30):
850
            e = SummerMonth(i)
851
            self.assertEqual(e, i)
852
            self.assertEqual(e.name, month)
853
            self.assertTrue(e in SummerMonth)
854
            self.assertTrue(type(e) is SummerMonth)
855

856
    def test_programatic_function_type_from_subclass(self):
857
        SummerMonth = IntEnum('SummerMonth', 'june july august')
858
        lst = list(SummerMonth)
859
        self.assertEqual(len(lst), len(SummerMonth))
860
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
861
        self.assertEqual(
862
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
863
                lst,
864
                )
865
        for i, month in enumerate('june july august'.split()):
866
            i += 1
867
            e = SummerMonth(i)
868
            self.assertEqual(e, i)
869
            self.assertEqual(e.name, month)
870
            self.assertTrue(e in SummerMonth)
871
            self.assertTrue(type(e) is SummerMonth)
872

873
    def test_programatic_function_type_from_subclass_with_start(self):
874
        SummerMonth = IntEnum('SummerMonth', 'june july august', start=40)
875
        lst = list(SummerMonth)
876
        self.assertEqual(len(lst), len(SummerMonth))
877
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
878
        self.assertEqual(
879
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
880
                lst,
881
                )
882
        for i, month in enumerate('june july august'.split(), 40):
883
            e = SummerMonth(i)
884
            self.assertEqual(e, i)
885
            self.assertEqual(e.name, month)
886
            self.assertTrue(e in SummerMonth)
887
            self.assertTrue(type(e) is SummerMonth)
888

889
    def test_programatic_function_unicode(self):
890
        SummerMonth = Enum('SummerMonth', unicode('june july august'))
891
        lst = list(SummerMonth)
892
        self.assertEqual(len(lst), len(SummerMonth))
893
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
894
        self.assertEqual(
895
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
896
                lst,
897
                )
898
        for i, month in enumerate(unicode('june july august').split()):
899
            i += 1
900
            e = SummerMonth(i)
901
            self.assertEqual(int(e.value), i)
902
            self.assertNotEqual(e, i)
903
            self.assertEqual(e.name, month)
904
            self.assertTrue(e in SummerMonth)
905
            self.assertTrue(type(e) is SummerMonth)
906

907
    def test_programatic_function_unicode_list(self):
908
        SummerMonth = Enum('SummerMonth', [unicode('june'), unicode('july'), unicode('august')])
909
        lst = list(SummerMonth)
910
        self.assertEqual(len(lst), len(SummerMonth))
911
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
912
        self.assertEqual(
913
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
914
                lst,
915
                )
916
        for i, month in enumerate(unicode('june july august').split()):
917
            i += 1
918
            e = SummerMonth(i)
919
            self.assertEqual(int(e.value), i)
920
            self.assertNotEqual(e, i)
921
            self.assertEqual(e.name, month)
922
            self.assertTrue(e in SummerMonth)
923
            self.assertTrue(type(e) is SummerMonth)
924

925
    def test_programatic_function_unicode_iterable(self):
926
        SummerMonth = Enum(
927
                'SummerMonth',
928
                ((unicode('june'), 1), (unicode('july'), 2), (unicode('august'), 3))
929
                )
930
        lst = list(SummerMonth)
931
        self.assertEqual(len(lst), len(SummerMonth))
932
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
933
        self.assertEqual(
934
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
935
                lst,
936
                )
937
        for i, month in enumerate(unicode('june july august').split()):
938
            i += 1
939
            e = SummerMonth(i)
940
            self.assertEqual(int(e.value), i)
941
            self.assertNotEqual(e, i)
942
            self.assertEqual(e.name, month)
943
            self.assertTrue(e in SummerMonth)
944
            self.assertTrue(type(e) is SummerMonth)
945

946
    def test_programatic_function_from_unicode_dict(self):
947
        SummerMonth = Enum(
948
                'SummerMonth',
949
                dict(((unicode('june'), 1), (unicode('july'), 2), (unicode('august'), 3)))
950
                )
951
        lst = list(SummerMonth)
952
        self.assertEqual(len(lst), len(SummerMonth))
953
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
954
        if pyver < 3.0:
955
            self.assertEqual(
956
                    [SummerMonth.june, SummerMonth.july, SummerMonth.august],
957
                    lst,
958
                    )
959
        for i, month in enumerate(unicode('june july august').split()):
960
            i += 1
961
            e = SummerMonth(i)
962
            self.assertEqual(int(e.value), i)
963
            self.assertNotEqual(e, i)
964
            self.assertEqual(e.name, month)
965
            self.assertTrue(e in SummerMonth)
966
            self.assertTrue(type(e) is SummerMonth)
967

968
    def test_programatic_function_unicode_type(self):
969
        SummerMonth = Enum('SummerMonth', unicode('june july august'), type=int)
970
        lst = list(SummerMonth)
971
        self.assertEqual(len(lst), len(SummerMonth))
972
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
973
        self.assertEqual(
974
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
975
                lst,
976
                )
977
        for i, month in enumerate(unicode('june july august').split()):
978
            i += 1
979
            e = SummerMonth(i)
980
            self.assertEqual(e, i)
981
            self.assertEqual(e.name, month)
982
            self.assertTrue(e in SummerMonth)
983
            self.assertTrue(type(e) is SummerMonth)
984

985
    def test_programatic_function_unicode_type_from_subclass(self):
986
        SummerMonth = IntEnum('SummerMonth', unicode('june july august'))
987
        lst = list(SummerMonth)
988
        self.assertEqual(len(lst), len(SummerMonth))
989
        self.assertEqual(len(SummerMonth), 3, SummerMonth)
990
        self.assertEqual(
991
                [SummerMonth.june, SummerMonth.july, SummerMonth.august],
992
                lst,
993
                )
994
        for i, month in enumerate(unicode('june july august').split()):
995
            i += 1
996
            e = SummerMonth(i)
997
            self.assertEqual(e, i)
998
            self.assertEqual(e.name, month)
999
            self.assertTrue(e in SummerMonth)
1000
            self.assertTrue(type(e) is SummerMonth)
1001

1002
    def test_programmatic_function_unicode_class(self):
1003
        if pyver < 3.0:
1004
            class_names = unicode('SummerMonth'), 'S\xfcmm\xe9rM\xf6nth'.decode('latin1')
1005
        else:
1006
            class_names = 'SummerMonth', 'S\xfcmm\xe9rM\xf6nth'
1007
        for i, class_name in enumerate(class_names):
1008
            if pyver < 3.0 and i == 1:
1009
                self.assertRaises(TypeError, Enum, class_name, unicode('june july august'))
1010
            else:
1011
                SummerMonth = Enum(class_name, unicode('june july august'))
1012
                lst = list(SummerMonth)
1013
                self.assertEqual(len(lst), len(SummerMonth))
1014
                self.assertEqual(len(SummerMonth), 3, SummerMonth)
1015
                self.assertEqual(
1016
                        [SummerMonth.june, SummerMonth.july, SummerMonth.august],
1017
                        lst,
1018
                        )
1019
                for i, month in enumerate(unicode('june july august').split()):
1020
                    i += 1
1021
                    e = SummerMonth(i)
1022
                    self.assertEqual(e.value, i)
1023
                    self.assertEqual(e.name, month)
1024
                    self.assertTrue(e in SummerMonth)
1025
                    self.assertTrue(type(e) is SummerMonth)
1026

1027
    def test_subclassing(self):
1028
        if isinstance(Name, Exception):
1029
            raise Name
1030
        self.assertEqual(Name.BDFL, 'Guido van Rossum')
1031
        self.assertTrue(Name.BDFL, Name('Guido van Rossum'))
1032
        self.assertTrue(Name.BDFL is getattr(Name, 'BDFL'))
1033
        test_pickle_dump_load(self.assertTrue, Name.BDFL)
1034

1035
    def test_extending(self):
1036
        def bad_extension():
1037
            class Color(Enum):
1038
                red = 1
1039
                green = 2
1040
                blue = 3
1041
            class MoreColor(Color):
1042
                cyan = 4
1043
                magenta = 5
1044
                yellow = 6
1045
        self.assertRaises(TypeError, bad_extension)
1046

1047
    def test_exclude_methods(self):
1048
        class whatever(Enum):
1049
            this = 'that'
1050
            these = 'those'
1051
            def really(self):
1052
                return 'no, not %s' % self.value
1053
        self.assertFalse(type(whatever.really) is whatever)
1054
        self.assertEqual(whatever.this.really(), 'no, not that')
1055

1056
    def test_wrong_inheritance_order(self):
1057
        def wrong_inherit():
1058
            class Wrong(Enum, str):
1059
                NotHere = 'error before this point'
1060
        self.assertRaises(TypeError, wrong_inherit)
1061

1062
    def test_intenum_transitivity(self):
1063
        class number(IntEnum):
1064
            one = 1
1065
            two = 2
1066
            three = 3
1067
        class numero(IntEnum):
1068
            uno = 1
1069
            dos = 2
1070
            tres = 3
1071
        self.assertEqual(number.one, numero.uno)
1072
        self.assertEqual(number.two, numero.dos)
1073
        self.assertEqual(number.three, numero.tres)
1074

1075
    def test_introspection(self):
1076
        class Number(IntEnum):
1077
            one = 100
1078
            two = 200
1079
        self.assertTrue(Number.one._member_type_ is int)
1080
        self.assertTrue(Number._member_type_ is int)
1081
        class String(str, Enum):
1082
            yarn = 'soft'
1083
            rope = 'rough'
1084
            wire = 'hard'
1085
        self.assertTrue(String.yarn._member_type_ is str)
1086
        self.assertTrue(String._member_type_ is str)
1087
        class Plain(Enum):
1088
            vanilla = 'white'
1089
            one = 1
1090
        self.assertTrue(Plain.vanilla._member_type_ is object)
1091
        self.assertTrue(Plain._member_type_ is object)
1092

1093
    def test_wrong_enum_in_call(self):
1094
        class Monochrome(Enum):
1095
            black = 0
1096
            white = 1
1097
        class Gender(Enum):
1098
            male = 0
1099
            female = 1
1100
        self.assertRaises(ValueError, Monochrome, Gender.male)
1101

1102
    def test_wrong_enum_in_mixed_call(self):
1103
        class Monochrome(IntEnum):
1104
            black = 0
1105
            white = 1
1106
        class Gender(Enum):
1107
            male = 0
1108
            female = 1
1109
        self.assertRaises(ValueError, Monochrome, Gender.male)
1110

1111
    def test_mixed_enum_in_call_1(self):
1112
        class Monochrome(IntEnum):
1113
            black = 0
1114
            white = 1
1115
        class Gender(IntEnum):
1116
            male = 0
1117
            female = 1
1118
        self.assertTrue(Monochrome(Gender.female) is Monochrome.white)
1119

1120
    def test_mixed_enum_in_call_2(self):
1121
        class Monochrome(Enum):
1122
            black = 0
1123
            white = 1
1124
        class Gender(IntEnum):
1125
            male = 0
1126
            female = 1
1127
        self.assertTrue(Monochrome(Gender.male) is Monochrome.black)
1128

1129
    def test_flufl_enum(self):
1130
        class Fluflnum(Enum):
1131
            def __int__(self):
1132
                return int(self.value)
1133
        class MailManOptions(Fluflnum):
1134
            option1 = 1
1135
            option2 = 2
1136
            option3 = 3
1137
        self.assertEqual(int(MailManOptions.option1), 1)
1138

1139
    def test_no_such_enum_member(self):
1140
        class Color(Enum):
1141
            red = 1
1142
            green = 2
1143
            blue = 3
1144
        self.assertRaises(ValueError, Color, 4)
1145
        self.assertRaises(KeyError, Color.__getitem__, 'chartreuse')
1146

1147
    def test_new_repr(self):
1148
        class Color(Enum):
1149
            red = 1
1150
            green = 2
1151
            blue = 3
1152
            def __repr__(self):
1153
                return "don't you just love shades of %s?" % self.name
1154
        self.assertEqual(
1155
                repr(Color.blue),
1156
                "don't you just love shades of blue?",
1157
                )
1158

1159
    def test_inherited_repr(self):
1160
        class MyEnum(Enum):
1161
            def __repr__(self):
1162
                return "My name is %s." % self.name
1163
        class MyIntEnum(int, MyEnum):
1164
            this = 1
1165
            that = 2
1166
            theother = 3
1167
        self.assertEqual(repr(MyIntEnum.that), "My name is that.")
1168

1169
    def test_multiple_mixin_mro(self):
1170
        class auto_enum(EnumMeta):
1171
            def __new__(metacls, cls, bases, classdict):
1172
                original_dict = classdict
1173
                classdict = enum._EnumDict()
1174
                for k, v in original_dict.items():
1175
                    classdict[k] = v
1176
                temp = type(classdict)()
1177
                names = set(classdict._member_names)
1178
                i = 0
1179
                for k in classdict._member_names:
1180
                    v = classdict[k]
1181
                    if v == ():
1182
                        v = i
1183
                    else:
1184
                        i = v
1185
                    i += 1
1186
                    temp[k] = v
1187
                for k, v in classdict.items():
1188
                    if k not in names:
1189
                        temp[k] = v
1190
                return super(auto_enum, metacls).__new__(
1191
                        metacls, cls, bases, temp)
1192

1193
        AutoNumberedEnum = auto_enum('AutoNumberedEnum', (Enum,), {})
1194

1195
        AutoIntEnum = auto_enum('AutoIntEnum', (IntEnum,), {})
1196

1197
        class TestAutoNumber(AutoNumberedEnum):
1198
            a = ()
1199
            b = 3
1200
            c = ()
1201

1202
        class TestAutoInt(AutoIntEnum):
1203
            a = ()
1204
            b = 3
1205
            c = ()
1206

1207
    def test_subclasses_with_getnewargs(self):
1208
        class NamedInt(int):
1209
            __qualname__ = 'NamedInt'  # needed for pickle protocol 4
1210
            def __new__(cls, *args):
1211
                _args = args
1212
                if len(args) < 1:
1213
                    raise TypeError("name and value must be specified")
1214
                name, args = args[0], args[1:]
1215
                self = int.__new__(cls, *args)
1216
                self._intname = name
1217
                self._args = _args
1218
                return self
1219
            def __getnewargs__(self):
1220
                return self._args
1221
            @property
1222
            def __name__(self):
1223
                return self._intname
1224
            def __repr__(self):
1225
                # repr() is updated to include the name and type info
1226
                return "%s(%r, %s)" % (type(self).__name__,
1227
                                             self.__name__,
1228
                                             int.__repr__(self))
1229
            def __str__(self):
1230
                # str() is unchanged, even if it relies on the repr() fallback
1231
                base = int
1232
                base_str = base.__str__
1233
                if base_str.__objclass__ is object:
1234
                    return base.__repr__(self)
1235
                return base_str(self)
1236
            # for simplicity, we only define one operator that
1237
            # propagates expressions
1238
            def __add__(self, other):
1239
                temp = int(self) + int( other)
1240
                if isinstance(self, NamedInt) and isinstance(other, NamedInt):
1241
                    return NamedInt(
1242
                        '(%s + %s)' % (self.__name__, other.__name__),
1243
                        temp )
1244
                else:
1245
                    return temp
1246

1247
        class NEI(NamedInt, Enum):
1248
            __qualname__ = 'NEI'  # needed for pickle protocol 4
1249
            x = ('the-x', 1)
1250
            y = ('the-y', 2)
1251

1252
        self.assertTrue(NEI.__new__ is Enum.__new__)
1253
        self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)")
1254
        globals()['NamedInt'] = NamedInt
1255
        globals()['NEI'] = NEI
1256
        NI5 = NamedInt('test', 5)
1257
        self.assertEqual(NI5, 5)
1258
        test_pickle_dump_load(self.assertTrue, NI5, 5)
1259
        self.assertEqual(NEI.y.value, 2)
1260
        test_pickle_dump_load(self.assertTrue, NEI.y)
1261

1262
    if pyver >= 3.4:
1263
        def test_subclasses_with_getnewargs_ex(self):
1264
            class NamedInt(int):
1265
                __qualname__ = 'NamedInt'       # needed for pickle protocol 4
1266
                def __new__(cls, *args):
1267
                    _args = args
1268
                    if len(args) < 2:
1269
                        raise TypeError("name and value must be specified")
1270
                    name, args = args[0], args[1:]
1271
                    self = int.__new__(cls, *args)
1272
                    self._intname = name
1273
                    self._args = _args
1274
                    return self
1275
                def __getnewargs_ex__(self):
1276
                    return self._args, {}
1277
                @property
1278
                def __name__(self):
1279
                    return self._intname
1280
                def __repr__(self):
1281
                    # repr() is updated to include the name and type info
1282
                    return "{}({!r}, {})".format(type(self).__name__,
1283
                                                 self.__name__,
1284
                                                 int.__repr__(self))
1285
                def __str__(self):
1286
                    # str() is unchanged, even if it relies on the repr() fallback
1287
                    base = int
1288
                    base_str = base.__str__
1289
                    if base_str.__objclass__ is object:
1290
                        return base.__repr__(self)
1291
                    return base_str(self)
1292
                # for simplicity, we only define one operator that
1293
                # propagates expressions
1294
                def __add__(self, other):
1295
                    temp = int(self) + int( other)
1296
                    if isinstance(self, NamedInt) and isinstance(other, NamedInt):
1297
                        return NamedInt(
1298
                            '({0} + {1})'.format(self.__name__, other.__name__),
1299
                            temp )
1300
                    else:
1301
                        return temp
1302

1303
            class NEI(NamedInt, Enum):
1304
                __qualname__ = 'NEI'      # needed for pickle protocol 4
1305
                x = ('the-x', 1)
1306
                y = ('the-y', 2)
1307

1308

1309
            self.assertIs(NEI.__new__, Enum.__new__)
1310
            self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)")
1311
            globals()['NamedInt'] = NamedInt
1312
            globals()['NEI'] = NEI
1313
            NI5 = NamedInt('test', 5)
1314
            self.assertEqual(NI5, 5)
1315
            test_pickle_dump_load(self.assertEqual, NI5, 5, protocol=(4, HIGHEST_PROTOCOL))
1316
            self.assertEqual(NEI.y.value, 2)
1317
            test_pickle_dump_load(self.assertTrue, NEI.y, protocol=(4, HIGHEST_PROTOCOL))
1318

1319
    def test_subclasses_with_reduce(self):
1320
        class NamedInt(int):
1321
            __qualname__ = 'NamedInt'       # needed for pickle protocol 4
1322
            def __new__(cls, *args):
1323
                _args = args
1324
                if len(args) < 1:
1325
                    raise TypeError("name and value must be specified")
1326
                name, args = args[0], args[1:]
1327
                self = int.__new__(cls, *args)
1328
                self._intname = name
1329
                self._args = _args
1330
                return self
1331
            def __reduce__(self):
1332
                return self.__class__, self._args
1333
            @property
1334
            def __name__(self):
1335
                return self._intname
1336
            def __repr__(self):
1337
                # repr() is updated to include the name and type info
1338
                return "%s(%r, %s)" % (type(self).__name__,
1339
                                             self.__name__,
1340
                                             int.__repr__(self))
1341
            def __str__(self):
1342
                # str() is unchanged, even if it relies on the repr() fallback
1343
                base = int
1344
                base_str = base.__str__
1345
                if base_str.__objclass__ is object:
1346
                    return base.__repr__(self)
1347
                return base_str(self)
1348
            # for simplicity, we only define one operator that
1349
            # propagates expressions
1350
            def __add__(self, other):
1351
                temp = int(self) + int( other)
1352
                if isinstance(self, NamedInt) and isinstance(other, NamedInt):
1353
                    return NamedInt(
1354
                        '(%s + %s)' % (self.__name__, other.__name__),
1355
                        temp )
1356
                else:
1357
                    return temp
1358

1359
        class NEI(NamedInt, Enum):
1360
            __qualname__ = 'NEI'      # needed for pickle protocol 4
1361
            x = ('the-x', 1)
1362
            y = ('the-y', 2)
1363

1364

1365
        self.assertTrue(NEI.__new__ is Enum.__new__)
1366
        self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)")
1367
        globals()['NamedInt'] = NamedInt
1368
        globals()['NEI'] = NEI
1369
        NI5 = NamedInt('test', 5)
1370
        self.assertEqual(NI5, 5)
1371
        test_pickle_dump_load(self.assertEqual, NI5, 5)
1372
        self.assertEqual(NEI.y.value, 2)
1373
        test_pickle_dump_load(self.assertTrue, NEI.y)
1374

1375
    def test_subclasses_with_reduce_ex(self):
1376
        class NamedInt(int):
1377
            __qualname__ = 'NamedInt'       # needed for pickle protocol 4
1378
            def __new__(cls, *args):
1379
                _args = args
1380
                if len(args) < 1:
1381
                    raise TypeError("name and value must be specified")
1382
                name, args = args[0], args[1:]
1383
                self = int.__new__(cls, *args)
1384
                self._intname = name
1385
                self._args = _args
1386
                return self
1387
            def __reduce_ex__(self, proto):
1388
                return self.__class__, self._args
1389
            @property
1390
            def __name__(self):
1391
                return self._intname
1392
            def __repr__(self):
1393
                # repr() is updated to include the name and type info
1394
                return "%s(%r, %s)" % (type(self).__name__,
1395
                                             self.__name__,
1396
                                             int.__repr__(self))
1397
            def __str__(self):
1398
                # str() is unchanged, even if it relies on the repr() fallback
1399
                base = int
1400
                base_str = base.__str__
1401
                if base_str.__objclass__ is object:
1402
                    return base.__repr__(self)
1403
                return base_str(self)
1404
            # for simplicity, we only define one operator that
1405
            # propagates expressions
1406
            def __add__(self, other):
1407
                temp = int(self) + int( other)
1408
                if isinstance(self, NamedInt) and isinstance(other, NamedInt):
1409
                    return NamedInt(
1410
                        '(%s + %s)' % (self.__name__, other.__name__),
1411
                        temp )
1412
                else:
1413
                    return temp
1414

1415
        class NEI(NamedInt, Enum):
1416
            __qualname__ = 'NEI'      # needed for pickle protocol 4
1417
            x = ('the-x', 1)
1418
            y = ('the-y', 2)
1419

1420

1421
        self.assertTrue(NEI.__new__ is Enum.__new__)
1422
        self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)")
1423
        globals()['NamedInt'] = NamedInt
1424
        globals()['NEI'] = NEI
1425
        NI5 = NamedInt('test', 5)
1426
        self.assertEqual(NI5, 5)
1427
        test_pickle_dump_load(self.assertEqual, NI5, 5)
1428
        self.assertEqual(NEI.y.value, 2)
1429
        test_pickle_dump_load(self.assertTrue, NEI.y)
1430

1431
    def test_subclasses_without_direct_pickle_support(self):
1432
        class NamedInt(int):
1433
            __qualname__ = 'NamedInt'
1434
            def __new__(cls, *args):
1435
                _args = args
1436
                name, args = args[0], args[1:]
1437
                if len(args) == 0:
1438
                    raise TypeError("name and value must be specified")
1439
                self = int.__new__(cls, *args)
1440
                self._intname = name
1441
                self._args = _args
1442
                return self
1443
            @property
1444
            def __name__(self):
1445
                return self._intname
1446
            def __repr__(self):
1447
                # repr() is updated to include the name and type info
1448
                return "%s(%r, %s)" % (type(self).__name__,
1449
                                             self.__name__,
1450
                                             int.__repr__(self))
1451
            def __str__(self):
1452
                # str() is unchanged, even if it relies on the repr() fallback
1453
                base = int
1454
                base_str = base.__str__
1455
                if base_str.__objclass__ is object:
1456
                    return base.__repr__(self)
1457
                return base_str(self)
1458
            # for simplicity, we only define one operator that
1459
            # propagates expressions
1460
            def __add__(self, other):
1461
                temp = int(self) + int( other)
1462
                if isinstance(self, NamedInt) and isinstance(other, NamedInt):
1463
                    return NamedInt(
1464
                        '(%s + %s)' % (self.__name__, other.__name__),
1465
                        temp )
1466
                else:
1467
                    return temp
1468

1469
        class NEI(NamedInt, Enum):
1470
            __qualname__ = 'NEI'
1471
            x = ('the-x', 1)
1472
            y = ('the-y', 2)
1473

1474
        self.assertTrue(NEI.__new__ is Enum.__new__)
1475
        self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)")
1476
        globals()['NamedInt'] = NamedInt
1477
        globals()['NEI'] = NEI
1478
        NI5 = NamedInt('test', 5)
1479
        self.assertEqual(NI5, 5)
1480
        self.assertEqual(NEI.y.value, 2)
1481
        test_pickle_exception(self.assertRaises, TypeError, NEI.x)
1482
        test_pickle_exception(self.assertRaises, PicklingError, NEI)
1483

1484
    def test_subclasses_without_direct_pickle_support_using_name(self):
1485
        class NamedInt(int):
1486
            __qualname__ = 'NamedInt'
1487
            def __new__(cls, *args):
1488
                _args = args
1489
                name, args = args[0], args[1:]
1490
                if len(args) == 0:
1491
                    raise TypeError("name and value must be specified")
1492
                self = int.__new__(cls, *args)
1493
                self._intname = name
1494
                self._args = _args
1495
                return self
1496
            @property
1497
            def __name__(self):
1498
                return self._intname
1499
            def __repr__(self):
1500
                # repr() is updated to include the name and type info
1501
                return "%s(%r, %s)" % (type(self).__name__,
1502
                                             self.__name__,
1503
                                             int.__repr__(self))
1504
            def __str__(self):
1505
                # str() is unchanged, even if it relies on the repr() fallback
1506
                base = int
1507
                base_str = base.__str__
1508
                if base_str.__objclass__ is object:
1509
                    return base.__repr__(self)
1510
                return base_str(self)
1511
            # for simplicity, we only define one operator that
1512
            # propagates expressions
1513
            def __add__(self, other):
1514
                temp = int(self) + int( other)
1515
                if isinstance(self, NamedInt) and isinstance(other, NamedInt):
1516
                    return NamedInt(
1517
                        '(%s + %s)' % (self.__name__, other.__name__),
1518
                        temp )
1519
                else:
1520
                    return temp
1521

1522
        class NEI(NamedInt, Enum):
1523
            __qualname__ = 'NEI'
1524
            x = ('the-x', 1)
1525
            y = ('the-y', 2)
1526
            def __reduce_ex__(self, proto):
1527
                return getattr, (self.__class__, self._name_)
1528

1529
        self.assertTrue(NEI.__new__ is Enum.__new__)
1530
        self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)")
1531
        globals()['NamedInt'] = NamedInt
1532
        globals()['NEI'] = NEI
1533
        NI5 = NamedInt('test', 5)
1534
        self.assertEqual(NI5, 5)
1535
        self.assertEqual(NEI.y.value, 2)
1536
        test_pickle_dump_load(self.assertTrue, NEI.y)
1537
        test_pickle_dump_load(self.assertTrue, NEI)
1538

1539
    def test_tuple_subclass(self):
1540
        class SomeTuple(tuple, Enum):
1541
            __qualname__ = 'SomeTuple'
1542
            first = (1, 'for the money')
1543
            second = (2, 'for the show')
1544
            third = (3, 'for the music')
1545
        self.assertTrue(type(SomeTuple.first) is SomeTuple)
1546
        self.assertTrue(isinstance(SomeTuple.second, tuple))
1547
        self.assertEqual(SomeTuple.third, (3, 'for the music'))
1548
        globals()['SomeTuple'] = SomeTuple
1549
        test_pickle_dump_load(self.assertTrue, SomeTuple.first)
1550

1551
    def test_duplicate_values_give_unique_enum_items(self):
1552
        class AutoNumber(Enum):
1553
            __order__ = 'enum_m enum_d enum_y'
1554
            enum_m = ()
1555
            enum_d = ()
1556
            enum_y = ()
1557
            def __new__(cls):
1558
                value = len(cls.__members__) + 1
1559
                obj = object.__new__(cls)
1560
                obj._value_ = value
1561
                return obj
1562
            def __int__(self):
1563
                return int(self._value_)
1564
        self.assertEqual(int(AutoNumber.enum_d), 2)
1565
        self.assertEqual(AutoNumber.enum_y.value, 3)
1566
        self.assertTrue(AutoNumber(1) is AutoNumber.enum_m)
1567
        self.assertEqual(
1568
            list(AutoNumber),
1569
            [AutoNumber.enum_m, AutoNumber.enum_d, AutoNumber.enum_y],
1570
            )
1571

1572
    def test_inherited_new_from_enhanced_enum(self):
1573
        class AutoNumber2(Enum):
1574
            def __new__(cls):
1575
                value = len(cls.__members__) + 1
1576
                obj = object.__new__(cls)
1577
                obj._value_ = value
1578
                return obj
1579
            def __int__(self):
1580
                return int(self._value_)
1581
        class Color(AutoNumber2):
1582
            __order__ = 'red green blue'
1583
            red = ()
1584
            green = ()
1585
            blue = ()
1586
        self.assertEqual(len(Color), 3, "wrong number of elements: %d (should be %d)" % (len(Color), 3))
1587
        self.assertEqual(list(Color), [Color.red, Color.green, Color.blue])
1588
        if pyver >= 3.0:
1589
            self.assertEqual(list(map(int, Color)), [1, 2, 3])
1590

1591
    def test_inherited_new_from_mixed_enum(self):
1592
        class AutoNumber3(IntEnum):
1593
            def __new__(cls):
1594
                value = len(cls.__members__) + 1
1595
                obj = int.__new__(cls, value)
1596
                obj._value_ = value
1597
                return obj
1598
        class Color(AutoNumber3):
1599
            red = ()
1600
            green = ()
1601
            blue = ()
1602
        self.assertEqual(len(Color), 3, "wrong number of elements: %d (should be %d)" % (len(Color), 3))
1603
        Color.red
1604
        Color.green
1605
        Color.blue
1606

1607
    def test_equality(self):
1608
        class AlwaysEqual:
1609
            def __eq__(self, other):
1610
                return True
1611
        class OrdinaryEnum(Enum):
1612
            a = 1
1613
        self.assertEqual(AlwaysEqual(), OrdinaryEnum.a)
1614
        self.assertEqual(OrdinaryEnum.a, AlwaysEqual())
1615

1616
    def test_ordered_mixin(self):
1617
        class OrderedEnum(Enum):
1618
            def __ge__(self, other):
1619
                if self.__class__ is other.__class__:
1620
                    return self._value_ >= other._value_
1621
                return NotImplemented
1622
            def __gt__(self, other):
1623
                if self.__class__ is other.__class__:
1624
                    return self._value_ > other._value_
1625
                return NotImplemented
1626
            def __le__(self, other):
1627
                if self.__class__ is other.__class__:
1628
                    return self._value_ <= other._value_
1629
                return NotImplemented
1630
            def __lt__(self, other):
1631
                if self.__class__ is other.__class__:
1632
                    return self._value_ < other._value_
1633
                return NotImplemented
1634
        class Grade(OrderedEnum):
1635
            __order__ = 'A B C D F'
1636
            A = 5
1637
            B = 4
1638
            C = 3
1639
            D = 2
1640
            F = 1
1641
        self.assertEqual(list(Grade), [Grade.A, Grade.B, Grade.C, Grade.D, Grade.F])
1642
        self.assertTrue(Grade.A > Grade.B)
1643
        self.assertTrue(Grade.F <= Grade.C)
1644
        self.assertTrue(Grade.D < Grade.A)
1645
        self.assertTrue(Grade.B >= Grade.B)
1646

1647
    def test_extending2(self):
1648
        def bad_extension():
1649
            class Shade(Enum):
1650
                def shade(self):
1651
                    print(self.name)
1652
            class Color(Shade):
1653
                red = 1
1654
                green = 2
1655
                blue = 3
1656
            class MoreColor(Color):
1657
                cyan = 4
1658
                magenta = 5
1659
                yellow = 6
1660
        self.assertRaises(TypeError, bad_extension)
1661

1662
    def test_extending3(self):
1663
        class Shade(Enum):
1664
            def shade(self):
1665
                return self.name
1666
        class Color(Shade):
1667
            def hex(self):
1668
                return '%s hexlified!' % self.value
1669
        class MoreColor(Color):
1670
            cyan = 4
1671
            magenta = 5
1672
            yellow = 6
1673
        self.assertEqual(MoreColor.magenta.hex(), '5 hexlified!')
1674

1675
    def test_no_duplicates(self):
1676
        def bad_duplicates():
1677
            class UniqueEnum(Enum):
1678
                def __init__(self, *args):
1679
                    cls = self.__class__
1680
                    if any(self.value == e.value for e in cls):
1681
                        a = self.name
1682
                        e = cls(self.value).name
1683
                        raise ValueError(
1684
                                "aliases not allowed in UniqueEnum:  %r --> %r"
1685
                                % (a, e)
1686
                                )
1687
            class Color(UniqueEnum):
1688
                red = 1
1689
                green = 2
1690
                blue = 3
1691
            class Color(UniqueEnum):
1692
                red = 1
1693
                green = 2
1694
                blue = 3
1695
                grene = 2
1696
        self.assertRaises(ValueError, bad_duplicates)
1697

1698
    def test_init(self):
1699
        class Planet(Enum):
1700
            MERCURY = (3.303e+23, 2.4397e6)
1701
            VENUS   = (4.869e+24, 6.0518e6)
1702
            EARTH   = (5.976e+24, 6.37814e6)
1703
            MARS    = (6.421e+23, 3.3972e6)
1704
            JUPITER = (1.9e+27,   7.1492e7)
1705
            SATURN  = (5.688e+26, 6.0268e7)
1706
            URANUS  = (8.686e+25, 2.5559e7)
1707
            NEPTUNE = (1.024e+26, 2.4746e7)
1708
            def __init__(self, mass, radius):
1709
                self.mass = mass       # in kilograms
1710
                self.radius = radius   # in meters
1711
            @property
1712
            def surface_gravity(self):
1713
                # universal gravitational constant  (m3 kg-1 s-2)
1714
                G = 6.67300E-11
1715
                return G * self.mass / (self.radius * self.radius)
1716
        self.assertEqual(round(Planet.EARTH.surface_gravity, 2), 9.80)
1717
        self.assertEqual(Planet.EARTH.value, (5.976e+24, 6.37814e6))
1718

1719
    def test_nonhash_value(self):
1720
        class AutoNumberInAList(Enum):
1721
            def __new__(cls):
1722
                value = [len(cls.__members__) + 1]
1723
                obj = object.__new__(cls)
1724
                obj._value_ = value
1725
                return obj
1726
        class ColorInAList(AutoNumberInAList):
1727
            __order__ = 'red green blue'
1728
            red = ()
1729
            green = ()
1730
            blue = ()
1731
        self.assertEqual(list(ColorInAList), [ColorInAList.red, ColorInAList.green, ColorInAList.blue])
1732
        self.assertEqual(ColorInAList.red.value, [1])
1733
        self.assertEqual(ColorInAList([1]), ColorInAList.red)
1734

1735
    def test_conflicting_types_resolved_in_new(self):
1736
        class LabelledIntEnum(int, Enum):
1737
            def __new__(cls, *args):
1738
                value, label = args
1739
                obj = int.__new__(cls, value)
1740
                obj.label = label
1741
                obj._value_ = value
1742
                return obj
1743

1744
        class LabelledList(LabelledIntEnum):
1745
            unprocessed = (1, "Unprocessed")
1746
            payment_complete = (2, "Payment Complete")
1747

1748
        self.assertEqual(list(LabelledList), [LabelledList.unprocessed, LabelledList.payment_complete])
1749
        self.assertEqual(LabelledList.unprocessed, 1)
1750
        self.assertEqual(LabelledList(1), LabelledList.unprocessed)
1751

1752
    def test_empty_with_functional_api(self):
1753
        empty = enum.IntEnum('Foo', {})
1754
        self.assertEqual(len(empty), 0)
1755

1756

1757
class TestUnique(unittest.TestCase):
1758
    """2.4 doesn't allow class decorators, use function syntax."""
1759

1760
    def test_unique_clean(self):
1761
        class Clean(Enum):
1762
            one = 1
1763
            two = 'dos'
1764
            tres = 4.0
1765
        unique(Clean)
1766
        class Cleaner(IntEnum):
1767
            single = 1
1768
            double = 2
1769
            triple = 3
1770
        unique(Cleaner)
1771

1772
    def test_unique_dirty(self):
1773
        try:
1774
            class Dirty(Enum):
1775
                __order__ = 'one two tres'
1776
                one = 1
1777
                two = 'dos'
1778
                tres = 1
1779
            unique(Dirty)
1780
        except ValueError:
1781
            exc = sys.exc_info()[1]
1782
            message = exc.args[0]
1783
        self.assertTrue('tres -> one' in message)
1784

1785
        try:
1786
            class Dirtier(IntEnum):
1787
                __order__ = 'single double triple turkey'
1788
                single = 1
1789
                double = 1
1790
                triple = 3
1791
                turkey = 3
1792
            unique(Dirtier)
1793
        except ValueError:
1794
            exc = sys.exc_info()[1]
1795
            message = exc.args[0]
1796
        self.assertTrue('double -> single' in message)
1797
        self.assertTrue('turkey -> triple' in message)
1798

1799

1800
class TestMe(unittest.TestCase):
1801

1802
    pass
1803

1804
if __name__ == '__main__':
1805
    unittest.main()
1806

1807
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