| import enum |
| import sys |
| import unittest |
| from enum import Enum, IntEnum, unique, EnumMeta |
| from pickle import dumps, loads, PicklingError, HIGHEST_PROTOCOL |
| |
| pyver = float('%s.%s' % sys.version_info[:2]) |
| |
| try: |
| any |
| except NameError: |
| def any(iterable): |
| for element in iterable: |
| if element: |
| return True |
| return False |
| |
| try: |
| unicode |
| except NameError: |
| unicode = str |
| |
| try: |
| from collections import OrderedDict |
| except ImportError: |
| OrderedDict = None |
| |
| # for pickle tests |
| try: |
| class Stooges(Enum): |
| LARRY = 1 |
| CURLY = 2 |
| MOE = 3 |
| except Exception: |
| Stooges = sys.exc_info()[1] |
| |
| try: |
| class IntStooges(int, Enum): |
| LARRY = 1 |
| CURLY = 2 |
| MOE = 3 |
| except Exception: |
| IntStooges = sys.exc_info()[1] |
| |
| try: |
| class FloatStooges(float, Enum): |
| LARRY = 1.39 |
| CURLY = 2.72 |
| MOE = 3.142596 |
| except Exception: |
| FloatStooges = sys.exc_info()[1] |
| |
| # for pickle test and subclass tests |
| try: |
| class StrEnum(str, Enum): |
| 'accepts only string values' |
| class Name(StrEnum): |
| BDFL = 'Guido van Rossum' |
| FLUFL = 'Barry Warsaw' |
| except Exception: |
| Name = sys.exc_info()[1] |
| |
| try: |
| Question = Enum('Question', 'who what when where why', module=__name__) |
| except Exception: |
| Question = sys.exc_info()[1] |
| |
| try: |
| Answer = Enum('Answer', 'him this then there because') |
| except Exception: |
| Answer = sys.exc_info()[1] |
| |
| try: |
| Theory = Enum('Theory', 'rule law supposition', qualname='spanish_inquisition') |
| except Exception: |
| Theory = sys.exc_info()[1] |
| |
| # for doctests |
| try: |
| class Fruit(Enum): |
| tomato = 1 |
| banana = 2 |
| cherry = 3 |
| except Exception: |
| pass |
| |
| def test_pickle_dump_load(assertion, source, target=None, |
| protocol=(0, HIGHEST_PROTOCOL)): |
| start, stop = protocol |
| failures = [] |
| for protocol in range(start, stop+1): |
| try: |
| if target is None: |
| assertion(loads(dumps(source, protocol=protocol)) is source) |
| else: |
| assertion(loads(dumps(source, protocol=protocol)), target) |
| except Exception: |
| exc, tb = sys.exc_info()[1:] |
| failures.append('%2d: %s' %(protocol, exc)) |
| if failures: |
| raise ValueError('Failed with protocols: %s' % ', '.join(failures)) |
| |
| def test_pickle_exception(assertion, exception, obj, |
| protocol=(0, HIGHEST_PROTOCOL)): |
| start, stop = protocol |
| failures = [] |
| for protocol in range(start, stop+1): |
| try: |
| assertion(exception, dumps, obj, protocol=protocol) |
| except Exception: |
| exc = sys.exc_info()[1] |
| failures.append('%d: %s %s' % (protocol, exc.__class__.__name__, exc)) |
| if failures: |
| raise ValueError('Failed with protocols: %s' % ', '.join(failures)) |
| |
| |
| class TestHelpers(unittest.TestCase): |
| # _is_descriptor, _is_sunder, _is_dunder |
| |
| def test_is_descriptor(self): |
| class foo: |
| pass |
| for attr in ('__get__','__set__','__delete__'): |
| obj = foo() |
| self.assertFalse(enum._is_descriptor(obj)) |
| setattr(obj, attr, 1) |
| self.assertTrue(enum._is_descriptor(obj)) |
| |
| def test_is_sunder(self): |
| for s in ('_a_', '_aa_'): |
| self.assertTrue(enum._is_sunder(s)) |
| |
| for s in ('a', 'a_', '_a', '__a', 'a__', '__a__', '_a__', '__a_', '_', |
| '__', '___', '____', '_____',): |
| self.assertFalse(enum._is_sunder(s)) |
| |
| def test_is_dunder(self): |
| for s in ('__a__', '__aa__'): |
| self.assertTrue(enum._is_dunder(s)) |
| for s in ('a', 'a_', '_a', '__a', 'a__', '_a_', '_a__', '__a_', '_', |
| '__', '___', '____', '_____',): |
| self.assertFalse(enum._is_dunder(s)) |
| |
| |
| class TestEnum(unittest.TestCase): |
| def setUp(self): |
| class Season(Enum): |
| SPRING = 1 |
| SUMMER = 2 |
| AUTUMN = 3 |
| WINTER = 4 |
| self.Season = Season |
| |
| class Konstants(float, Enum): |
| E = 2.7182818 |
| PI = 3.1415926 |
| TAU = 2 * PI |
| self.Konstants = Konstants |
| |
| class Grades(IntEnum): |
| A = 5 |
| B = 4 |
| C = 3 |
| D = 2 |
| F = 0 |
| self.Grades = Grades |
| |
| class Directional(str, Enum): |
| EAST = 'east' |
| WEST = 'west' |
| NORTH = 'north' |
| SOUTH = 'south' |
| self.Directional = Directional |
| |
| from datetime import date |
| class Holiday(date, Enum): |
| NEW_YEAR = 2013, 1, 1 |
| IDES_OF_MARCH = 2013, 3, 15 |
| self.Holiday = Holiday |
| |
| if pyver >= 2.6: # cannot specify custom `dir` on previous versions |
| def test_dir_on_class(self): |
| Season = self.Season |
| self.assertEqual( |
| set(dir(Season)), |
| set(['__class__', '__doc__', '__members__', '__module__', |
| 'SPRING', 'SUMMER', 'AUTUMN', 'WINTER']), |
| ) |
| |
| def test_dir_on_item(self): |
| Season = self.Season |
| self.assertEqual( |
| set(dir(Season.WINTER)), |
| set(['__class__', '__doc__', '__module__', 'name', 'value']), |
| ) |
| |
| def test_dir_with_added_behavior(self): |
| class Test(Enum): |
| this = 'that' |
| these = 'those' |
| def wowser(self): |
| return ("Wowser! I'm %s!" % self.name) |
| self.assertEqual( |
| set(dir(Test)), |
| set(['__class__', '__doc__', '__members__', '__module__', 'this', 'these']), |
| ) |
| self.assertEqual( |
| set(dir(Test.this)), |
| set(['__class__', '__doc__', '__module__', 'name', 'value', 'wowser']), |
| ) |
| |
| def test_dir_on_sub_with_behavior_on_super(self): |
| # see issue22506 |
| class SuperEnum(Enum): |
| def invisible(self): |
| return "did you see me?" |
| class SubEnum(SuperEnum): |
| sample = 5 |
| self.assertEqual( |
| set(dir(SubEnum.sample)), |
| set(['__class__', '__doc__', '__module__', 'name', 'value', 'invisible']), |
| ) |
| |
| if pyver >= 2.7: # OrderedDict first available here |
| def test_members_is_ordereddict_if_ordered(self): |
| class Ordered(Enum): |
| __order__ = 'first second third' |
| first = 'bippity' |
| second = 'boppity' |
| third = 'boo' |
| self.assertTrue(type(Ordered.__members__) is OrderedDict) |
| |
| def test_members_is_ordereddict_if_not_ordered(self): |
| class Unordered(Enum): |
| this = 'that' |
| these = 'those' |
| self.assertTrue(type(Unordered.__members__) is OrderedDict) |
| |
| if pyver >= 3.0: # all objects are ordered in Python 2.x |
| def test_members_is_always_ordered(self): |
| class AlwaysOrdered(Enum): |
| first = 1 |
| second = 2 |
| third = 3 |
| self.assertTrue(type(AlwaysOrdered.__members__) is OrderedDict) |
| |
| def test_comparisons(self): |
| def bad_compare(): |
| Season.SPRING > 4 |
| Season = self.Season |
| self.assertNotEqual(Season.SPRING, 1) |
| self.assertRaises(TypeError, bad_compare) |
| |
| class Part(Enum): |
| SPRING = 1 |
| CLIP = 2 |
| BARREL = 3 |
| |
| self.assertNotEqual(Season.SPRING, Part.SPRING) |
| def bad_compare(): |
| Season.SPRING < Part.CLIP |
| self.assertRaises(TypeError, bad_compare) |
| |
| def test_enum_in_enum_out(self): |
| Season = self.Season |
| self.assertTrue(Season(Season.WINTER) is Season.WINTER) |
| |
| def test_enum_value(self): |
| Season = self.Season |
| self.assertEqual(Season.SPRING.value, 1) |
| |
| def test_intenum_value(self): |
| self.assertEqual(IntStooges.CURLY.value, 2) |
| |
| def test_enum(self): |
| Season = self.Season |
| lst = list(Season) |
| self.assertEqual(len(lst), len(Season)) |
| self.assertEqual(len(Season), 4, Season) |
| self.assertEqual( |
| [Season.SPRING, Season.SUMMER, Season.AUTUMN, Season.WINTER], lst) |
| |
| for i, season in enumerate('SPRING SUMMER AUTUMN WINTER'.split()): |
| i += 1 |
| e = Season(i) |
| self.assertEqual(e, getattr(Season, season)) |
| self.assertEqual(e.value, i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, season) |
| self.assertTrue(e in Season) |
| self.assertTrue(type(e) is Season) |
| self.assertTrue(isinstance(e, Season)) |
| self.assertEqual(str(e), 'Season.' + season) |
| self.assertEqual( |
| repr(e), |
| '<Season.%s: %s>' % (season, i), |
| ) |
| |
| def test_value_name(self): |
| Season = self.Season |
| self.assertEqual(Season.SPRING.name, 'SPRING') |
| self.assertEqual(Season.SPRING.value, 1) |
| def set_name(obj, new_value): |
| obj.name = new_value |
| def set_value(obj, new_value): |
| obj.value = new_value |
| self.assertRaises(AttributeError, set_name, Season.SPRING, 'invierno', ) |
| self.assertRaises(AttributeError, set_value, Season.SPRING, 2) |
| |
| def test_attribute_deletion(self): |
| class Season(Enum): |
| SPRING = 1 |
| SUMMER = 2 |
| AUTUMN = 3 |
| WINTER = 4 |
| |
| def spam(cls): |
| pass |
| |
| self.assertTrue(hasattr(Season, 'spam')) |
| del Season.spam |
| self.assertFalse(hasattr(Season, 'spam')) |
| |
| self.assertRaises(AttributeError, delattr, Season, 'SPRING') |
| self.assertRaises(AttributeError, delattr, Season, 'DRY') |
| self.assertRaises(AttributeError, delattr, Season.SPRING, 'name') |
| |
| def test_invalid_names(self): |
| def create_bad_class_1(): |
| class Wrong(Enum): |
| mro = 9 |
| def create_bad_class_2(): |
| class Wrong(Enum): |
| _reserved_ = 3 |
| self.assertRaises(ValueError, create_bad_class_1) |
| self.assertRaises(ValueError, create_bad_class_2) |
| |
| def test_bool(self): |
| class Logic(Enum): |
| true = True |
| false = False |
| self.assertTrue(Logic.true) |
| self.assertFalse(Logic.false) |
| |
| def test_contains(self): |
| Season = self.Season |
| self.assertTrue(Season.AUTUMN in Season) |
| self.assertTrue(3 not in Season) |
| |
| val = Season(3) |
| self.assertTrue(val in Season) |
| |
| class OtherEnum(Enum): |
| one = 1; two = 2 |
| self.assertTrue(OtherEnum.two not in Season) |
| |
| if pyver >= 2.6: # when `format` came into being |
| |
| def test_format_enum(self): |
| Season = self.Season |
| self.assertEqual('{0}'.format(Season.SPRING), |
| '{0}'.format(str(Season.SPRING))) |
| self.assertEqual( '{0:}'.format(Season.SPRING), |
| '{0:}'.format(str(Season.SPRING))) |
| self.assertEqual('{0:20}'.format(Season.SPRING), |
| '{0:20}'.format(str(Season.SPRING))) |
| self.assertEqual('{0:^20}'.format(Season.SPRING), |
| '{0:^20}'.format(str(Season.SPRING))) |
| self.assertEqual('{0:>20}'.format(Season.SPRING), |
| '{0:>20}'.format(str(Season.SPRING))) |
| self.assertEqual('{0:<20}'.format(Season.SPRING), |
| '{0:<20}'.format(str(Season.SPRING))) |
| |
| def test_format_enum_custom(self): |
| class TestFloat(float, Enum): |
| one = 1.0 |
| two = 2.0 |
| def __format__(self, spec): |
| return 'TestFloat success!' |
| self.assertEqual('{0}'.format(TestFloat.one), 'TestFloat success!') |
| |
| def assertFormatIsValue(self, spec, member): |
| self.assertEqual(spec.format(member), spec.format(member.value)) |
| |
| def test_format_enum_date(self): |
| Holiday = self.Holiday |
| self.assertFormatIsValue('{0}', Holiday.IDES_OF_MARCH) |
| self.assertFormatIsValue('{0:}', Holiday.IDES_OF_MARCH) |
| self.assertFormatIsValue('{0:20}', Holiday.IDES_OF_MARCH) |
| self.assertFormatIsValue('{0:^20}', Holiday.IDES_OF_MARCH) |
| self.assertFormatIsValue('{0:>20}', Holiday.IDES_OF_MARCH) |
| self.assertFormatIsValue('{0:<20}', Holiday.IDES_OF_MARCH) |
| self.assertFormatIsValue('{0:%Y %m}', Holiday.IDES_OF_MARCH) |
| self.assertFormatIsValue('{0:%Y %m %M:00}', Holiday.IDES_OF_MARCH) |
| |
| def test_format_enum_float(self): |
| Konstants = self.Konstants |
| self.assertFormatIsValue('{0}', Konstants.TAU) |
| self.assertFormatIsValue('{0:}', Konstants.TAU) |
| self.assertFormatIsValue('{0:20}', Konstants.TAU) |
| self.assertFormatIsValue('{0:^20}', Konstants.TAU) |
| self.assertFormatIsValue('{0:>20}', Konstants.TAU) |
| self.assertFormatIsValue('{0:<20}', Konstants.TAU) |
| self.assertFormatIsValue('{0:n}', Konstants.TAU) |
| self.assertFormatIsValue('{0:5.2}', Konstants.TAU) |
| self.assertFormatIsValue('{0:f}', Konstants.TAU) |
| |
| def test_format_enum_int(self): |
| Grades = self.Grades |
| self.assertFormatIsValue('{0}', Grades.C) |
| self.assertFormatIsValue('{0:}', Grades.C) |
| self.assertFormatIsValue('{0:20}', Grades.C) |
| self.assertFormatIsValue('{0:^20}', Grades.C) |
| self.assertFormatIsValue('{0:>20}', Grades.C) |
| self.assertFormatIsValue('{0:<20}', Grades.C) |
| self.assertFormatIsValue('{0:+}', Grades.C) |
| self.assertFormatIsValue('{0:08X}', Grades.C) |
| self.assertFormatIsValue('{0:b}', Grades.C) |
| |
| def test_format_enum_str(self): |
| Directional = self.Directional |
| self.assertFormatIsValue('{0}', Directional.WEST) |
| self.assertFormatIsValue('{0:}', Directional.WEST) |
| self.assertFormatIsValue('{0:20}', Directional.WEST) |
| self.assertFormatIsValue('{0:^20}', Directional.WEST) |
| self.assertFormatIsValue('{0:>20}', Directional.WEST) |
| self.assertFormatIsValue('{0:<20}', Directional.WEST) |
| |
| def test_hash(self): |
| Season = self.Season |
| dates = {} |
| dates[Season.WINTER] = '1225' |
| dates[Season.SPRING] = '0315' |
| dates[Season.SUMMER] = '0704' |
| dates[Season.AUTUMN] = '1031' |
| self.assertEqual(dates[Season.AUTUMN], '1031') |
| |
| def test_enum_duplicates(self): |
| __order__ = "SPRING SUMMER AUTUMN WINTER" |
| class Season(Enum): |
| SPRING = 1 |
| SUMMER = 2 |
| AUTUMN = FALL = 3 |
| WINTER = 4 |
| ANOTHER_SPRING = 1 |
| lst = list(Season) |
| self.assertEqual( |
| lst, |
| [Season.SPRING, Season.SUMMER, |
| Season.AUTUMN, Season.WINTER, |
| ]) |
| self.assertTrue(Season.FALL is Season.AUTUMN) |
| self.assertEqual(Season.FALL.value, 3) |
| self.assertEqual(Season.AUTUMN.value, 3) |
| self.assertTrue(Season(3) is Season.AUTUMN) |
| self.assertTrue(Season(1) is Season.SPRING) |
| self.assertEqual(Season.FALL.name, 'AUTUMN') |
| self.assertEqual( |
| set([k for k,v in Season.__members__.items() if v.name != k]), |
| set(['FALL', 'ANOTHER_SPRING']), |
| ) |
| |
| if pyver >= 3.0: |
| cls = vars() |
| result = {'Enum':Enum} |
| exec("""def test_duplicate_name(self): |
| with self.assertRaises(TypeError): |
| class Color(Enum): |
| red = 1 |
| green = 2 |
| blue = 3 |
| red = 4 |
| |
| with self.assertRaises(TypeError): |
| class Color(Enum): |
| red = 1 |
| green = 2 |
| blue = 3 |
| def red(self): |
| return 'red' |
| |
| with self.assertRaises(TypeError): |
| class Color(Enum): |
| @property |
| |
| def red(self): |
| return 'redder' |
| red = 1 |
| green = 2 |
| blue = 3""", |
| result) |
| cls['test_duplicate_name'] = result['test_duplicate_name'] |
| |
| def test_enum_with_value_name(self): |
| class Huh(Enum): |
| name = 1 |
| value = 2 |
| self.assertEqual( |
| list(Huh), |
| [Huh.name, Huh.value], |
| ) |
| self.assertTrue(type(Huh.name) is Huh) |
| self.assertEqual(Huh.name.name, 'name') |
| self.assertEqual(Huh.name.value, 1) |
| |
| def test_intenum_from_scratch(self): |
| class phy(int, Enum): |
| pi = 3 |
| tau = 2 * pi |
| self.assertTrue(phy.pi < phy.tau) |
| |
| def test_intenum_inherited(self): |
| class IntEnum(int, Enum): |
| pass |
| class phy(IntEnum): |
| pi = 3 |
| tau = 2 * pi |
| self.assertTrue(phy.pi < phy.tau) |
| |
| def test_floatenum_from_scratch(self): |
| class phy(float, Enum): |
| pi = 3.1415926 |
| tau = 2 * pi |
| self.assertTrue(phy.pi < phy.tau) |
| |
| def test_floatenum_inherited(self): |
| class FloatEnum(float, Enum): |
| pass |
| class phy(FloatEnum): |
| pi = 3.1415926 |
| tau = 2 * pi |
| self.assertTrue(phy.pi < phy.tau) |
| |
| def test_strenum_from_scratch(self): |
| class phy(str, Enum): |
| pi = 'Pi' |
| tau = 'Tau' |
| self.assertTrue(phy.pi < phy.tau) |
| |
| def test_strenum_inherited(self): |
| class StrEnum(str, Enum): |
| pass |
| class phy(StrEnum): |
| pi = 'Pi' |
| tau = 'Tau' |
| self.assertTrue(phy.pi < phy.tau) |
| |
| def test_intenum(self): |
| class WeekDay(IntEnum): |
| SUNDAY = 1 |
| MONDAY = 2 |
| TUESDAY = 3 |
| WEDNESDAY = 4 |
| THURSDAY = 5 |
| FRIDAY = 6 |
| SATURDAY = 7 |
| |
| self.assertEqual(['a', 'b', 'c'][WeekDay.MONDAY], 'c') |
| self.assertEqual([i for i in range(WeekDay.TUESDAY)], [0, 1, 2]) |
| |
| lst = list(WeekDay) |
| self.assertEqual(len(lst), len(WeekDay)) |
| self.assertEqual(len(WeekDay), 7) |
| target = 'SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY' |
| target = target.split() |
| for i, weekday in enumerate(target): |
| i += 1 |
| e = WeekDay(i) |
| self.assertEqual(e, i) |
| self.assertEqual(int(e), i) |
| self.assertEqual(e.name, weekday) |
| self.assertTrue(e in WeekDay) |
| self.assertEqual(lst.index(e)+1, i) |
| self.assertTrue(0 < e < 8) |
| self.assertTrue(type(e) is WeekDay) |
| self.assertTrue(isinstance(e, int)) |
| self.assertTrue(isinstance(e, Enum)) |
| |
| def test_intenum_duplicates(self): |
| class WeekDay(IntEnum): |
| __order__ = 'SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY' |
| SUNDAY = 1 |
| MONDAY = 2 |
| TUESDAY = TEUSDAY = 3 |
| WEDNESDAY = 4 |
| THURSDAY = 5 |
| FRIDAY = 6 |
| SATURDAY = 7 |
| self.assertTrue(WeekDay.TEUSDAY is WeekDay.TUESDAY) |
| self.assertEqual(WeekDay(3).name, 'TUESDAY') |
| self.assertEqual([k for k,v in WeekDay.__members__.items() |
| if v.name != k], ['TEUSDAY', ]) |
| |
| def test_pickle_enum(self): |
| if isinstance(Stooges, Exception): |
| raise Stooges |
| test_pickle_dump_load(self.assertTrue, Stooges.CURLY) |
| test_pickle_dump_load(self.assertTrue, Stooges) |
| |
| def test_pickle_int(self): |
| if isinstance(IntStooges, Exception): |
| raise IntStooges |
| test_pickle_dump_load(self.assertTrue, IntStooges.CURLY) |
| test_pickle_dump_load(self.assertTrue, IntStooges) |
| |
| def test_pickle_float(self): |
| if isinstance(FloatStooges, Exception): |
| raise FloatStooges |
| test_pickle_dump_load(self.assertTrue, FloatStooges.CURLY) |
| test_pickle_dump_load(self.assertTrue, FloatStooges) |
| |
| def test_pickle_enum_function(self): |
| if isinstance(Answer, Exception): |
| raise Answer |
| test_pickle_dump_load(self.assertTrue, Answer.him) |
| test_pickle_dump_load(self.assertTrue, Answer) |
| |
| def test_pickle_enum_function_with_module(self): |
| if isinstance(Question, Exception): |
| raise Question |
| test_pickle_dump_load(self.assertTrue, Question.who) |
| test_pickle_dump_load(self.assertTrue, Question) |
| |
| if pyver == 3.4: |
| def test_class_nested_enum_and_pickle_protocol_four(self): |
| # would normally just have this directly in the class namespace |
| class NestedEnum(Enum): |
| twigs = 'common' |
| shiny = 'rare' |
| |
| self.__class__.NestedEnum = NestedEnum |
| self.NestedEnum.__qualname__ = '%s.NestedEnum' % self.__class__.__name__ |
| test_pickle_exception( |
| self.assertRaises, PicklingError, self.NestedEnum.twigs, |
| protocol=(0, 3)) |
| test_pickle_dump_load(self.assertTrue, self.NestedEnum.twigs, |
| protocol=(4, HIGHEST_PROTOCOL)) |
| |
| elif pyver == 3.5: |
| def test_class_nested_enum_and_pickle_protocol_four(self): |
| # would normally just have this directly in the class namespace |
| class NestedEnum(Enum): |
| twigs = 'common' |
| shiny = 'rare' |
| |
| self.__class__.NestedEnum = NestedEnum |
| self.NestedEnum.__qualname__ = '%s.NestedEnum' % self.__class__.__name__ |
| test_pickle_dump_load(self.assertTrue, self.NestedEnum.twigs, |
| protocol=(0, HIGHEST_PROTOCOL)) |
| |
| def test_exploding_pickle(self): |
| BadPickle = Enum('BadPickle', 'dill sweet bread-n-butter') |
| enum._make_class_unpicklable(BadPickle) |
| globals()['BadPickle'] = BadPickle |
| test_pickle_exception(self.assertRaises, TypeError, BadPickle.dill) |
| test_pickle_exception(self.assertRaises, PicklingError, BadPickle) |
| |
| def test_string_enum(self): |
| class SkillLevel(str, Enum): |
| master = 'what is the sound of one hand clapping?' |
| journeyman = 'why did the chicken cross the road?' |
| apprentice = 'knock, knock!' |
| self.assertEqual(SkillLevel.apprentice, 'knock, knock!') |
| |
| def test_getattr_getitem(self): |
| class Period(Enum): |
| morning = 1 |
| noon = 2 |
| evening = 3 |
| night = 4 |
| self.assertTrue(Period(2) is Period.noon) |
| self.assertTrue(getattr(Period, 'night') is Period.night) |
| self.assertTrue(Period['morning'] is Period.morning) |
| |
| def test_getattr_dunder(self): |
| Season = self.Season |
| self.assertTrue(getattr(Season, '__hash__')) |
| |
| def test_iteration_order(self): |
| class Season(Enum): |
| __order__ = 'SUMMER WINTER AUTUMN SPRING' |
| SUMMER = 2 |
| WINTER = 4 |
| AUTUMN = 3 |
| SPRING = 1 |
| self.assertEqual( |
| list(Season), |
| [Season.SUMMER, Season.WINTER, Season.AUTUMN, Season.SPRING], |
| ) |
| |
| def test_iteration_order_reversed(self): |
| self.assertEqual( |
| list(reversed(self.Season)), |
| [self.Season.WINTER, self.Season.AUTUMN, self.Season.SUMMER, |
| self.Season.SPRING] |
| ) |
| |
| def test_iteration_order_with_unorderable_values(self): |
| class Complex(Enum): |
| a = complex(7, 9) |
| b = complex(3.14, 2) |
| c = complex(1, -1) |
| d = complex(-77, 32) |
| self.assertEqual( |
| list(Complex), |
| [Complex.a, Complex.b, Complex.c, Complex.d], |
| ) |
| |
| def test_programatic_function_string(self): |
| SummerMonth = Enum('SummerMonth', 'june july august') |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_string_with_start(self): |
| SummerMonth = Enum('SummerMonth', 'june july august', start=10) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split(), 10): |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_string_list(self): |
| SummerMonth = Enum('SummerMonth', ['june', 'july', 'august']) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_string_list_with_start(self): |
| SummerMonth = Enum('SummerMonth', ['june', 'july', 'august'], start=20) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split(), 20): |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_iterable(self): |
| SummerMonth = Enum( |
| 'SummerMonth', |
| (('june', 1), ('july', 2), ('august', 3)) |
| ) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_from_dict(self): |
| SummerMonth = Enum( |
| 'SummerMonth', |
| dict((('june', 1), ('july', 2), ('august', 3))) |
| ) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| if pyver < 3.0: |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_type(self): |
| SummerMonth = Enum('SummerMonth', 'june july august', type=int) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_type_with_start(self): |
| SummerMonth = Enum('SummerMonth', 'june july august', type=int, start=30) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split(), 30): |
| e = SummerMonth(i) |
| self.assertEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_type_from_subclass(self): |
| SummerMonth = IntEnum('SummerMonth', 'june july august') |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_type_from_subclass_with_start(self): |
| SummerMonth = IntEnum('SummerMonth', 'june july august', start=40) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate('june july august'.split(), 40): |
| e = SummerMonth(i) |
| self.assertEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_unicode(self): |
| SummerMonth = Enum('SummerMonth', unicode('june july august')) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate(unicode('june july august').split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_unicode_list(self): |
| SummerMonth = Enum('SummerMonth', [unicode('june'), unicode('july'), unicode('august')]) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate(unicode('june july august').split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_unicode_iterable(self): |
| SummerMonth = Enum( |
| 'SummerMonth', |
| ((unicode('june'), 1), (unicode('july'), 2), (unicode('august'), 3)) |
| ) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate(unicode('june july august').split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_from_unicode_dict(self): |
| SummerMonth = Enum( |
| 'SummerMonth', |
| dict(((unicode('june'), 1), (unicode('july'), 2), (unicode('august'), 3))) |
| ) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| if pyver < 3.0: |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate(unicode('june july august').split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(int(e.value), i) |
| self.assertNotEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_unicode_type(self): |
| SummerMonth = Enum('SummerMonth', unicode('june july august'), type=int) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate(unicode('june july august').split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programatic_function_unicode_type_from_subclass(self): |
| SummerMonth = IntEnum('SummerMonth', unicode('june july august')) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate(unicode('june july august').split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(e, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_programmatic_function_unicode_class(self): |
| if pyver < 3.0: |
| class_names = unicode('SummerMonth'), 'S\xfcmm\xe9rM\xf6nth'.decode('latin1') |
| else: |
| class_names = 'SummerMonth', 'S\xfcmm\xe9rM\xf6nth' |
| for i, class_name in enumerate(class_names): |
| if pyver < 3.0 and i == 1: |
| self.assertRaises(TypeError, Enum, class_name, unicode('june july august')) |
| else: |
| SummerMonth = Enum(class_name, unicode('june july august')) |
| lst = list(SummerMonth) |
| self.assertEqual(len(lst), len(SummerMonth)) |
| self.assertEqual(len(SummerMonth), 3, SummerMonth) |
| self.assertEqual( |
| [SummerMonth.june, SummerMonth.july, SummerMonth.august], |
| lst, |
| ) |
| for i, month in enumerate(unicode('june july august').split()): |
| i += 1 |
| e = SummerMonth(i) |
| self.assertEqual(e.value, i) |
| self.assertEqual(e.name, month) |
| self.assertTrue(e in SummerMonth) |
| self.assertTrue(type(e) is SummerMonth) |
| |
| def test_subclassing(self): |
| if isinstance(Name, Exception): |
| raise Name |
| self.assertEqual(Name.BDFL, 'Guido van Rossum') |
| self.assertTrue(Name.BDFL, Name('Guido van Rossum')) |
| self.assertTrue(Name.BDFL is getattr(Name, 'BDFL')) |
| test_pickle_dump_load(self.assertTrue, Name.BDFL) |
| |
| def test_extending(self): |
| def bad_extension(): |
| class Color(Enum): |
| red = 1 |
| green = 2 |
| blue = 3 |
| class MoreColor(Color): |
| cyan = 4 |
| magenta = 5 |
| yellow = 6 |
| self.assertRaises(TypeError, bad_extension) |
| |
| def test_exclude_methods(self): |
| class whatever(Enum): |
| this = 'that' |
| these = 'those' |
| def really(self): |
| return 'no, not %s' % self.value |
| self.assertFalse(type(whatever.really) is whatever) |
| self.assertEqual(whatever.this.really(), 'no, not that') |
| |
| def test_wrong_inheritance_order(self): |
| def wrong_inherit(): |
| class Wrong(Enum, str): |
| NotHere = 'error before this point' |
| self.assertRaises(TypeError, wrong_inherit) |
| |
| def test_intenum_transitivity(self): |
| class number(IntEnum): |
| one = 1 |
| two = 2 |
| three = 3 |
| class numero(IntEnum): |
| uno = 1 |
| dos = 2 |
| tres = 3 |
| self.assertEqual(number.one, numero.uno) |
| self.assertEqual(number.two, numero.dos) |
| self.assertEqual(number.three, numero.tres) |
| |
| def test_introspection(self): |
| class Number(IntEnum): |
| one = 100 |
| two = 200 |
| self.assertTrue(Number.one._member_type_ is int) |
| self.assertTrue(Number._member_type_ is int) |
| class String(str, Enum): |
| yarn = 'soft' |
| rope = 'rough' |
| wire = 'hard' |
| self.assertTrue(String.yarn._member_type_ is str) |
| self.assertTrue(String._member_type_ is str) |
| class Plain(Enum): |
| vanilla = 'white' |
| one = 1 |
| self.assertTrue(Plain.vanilla._member_type_ is object) |
| self.assertTrue(Plain._member_type_ is object) |
| |
| def test_wrong_enum_in_call(self): |
| class Monochrome(Enum): |
| black = 0 |
| white = 1 |
| class Gender(Enum): |
| male = 0 |
| female = 1 |
| self.assertRaises(ValueError, Monochrome, Gender.male) |
| |
| def test_wrong_enum_in_mixed_call(self): |
| class Monochrome(IntEnum): |
| black = 0 |
| white = 1 |
| class Gender(Enum): |
| male = 0 |
| female = 1 |
| self.assertRaises(ValueError, Monochrome, Gender.male) |
| |
| def test_mixed_enum_in_call_1(self): |
| class Monochrome(IntEnum): |
| black = 0 |
| white = 1 |
| class Gender(IntEnum): |
| male = 0 |
| female = 1 |
| self.assertTrue(Monochrome(Gender.female) is Monochrome.white) |
| |
| def test_mixed_enum_in_call_2(self): |
| class Monochrome(Enum): |
| black = 0 |
| white = 1 |
| class Gender(IntEnum): |
| male = 0 |
| female = 1 |
| self.assertTrue(Monochrome(Gender.male) is Monochrome.black) |
| |
| def test_flufl_enum(self): |
| class Fluflnum(Enum): |
| def __int__(self): |
| return int(self.value) |
| class MailManOptions(Fluflnum): |
| option1 = 1 |
| option2 = 2 |
| option3 = 3 |
| self.assertEqual(int(MailManOptions.option1), 1) |
| |
| def test_no_such_enum_member(self): |
| class Color(Enum): |
| red = 1 |
| green = 2 |
| blue = 3 |
| self.assertRaises(ValueError, Color, 4) |
| self.assertRaises(KeyError, Color.__getitem__, 'chartreuse') |
| |
| def test_new_repr(self): |
| class Color(Enum): |
| red = 1 |
| green = 2 |
| blue = 3 |
| def __repr__(self): |
| return "don't you just love shades of %s?" % self.name |
| self.assertEqual( |
| repr(Color.blue), |
| "don't you just love shades of blue?", |
| ) |
| |
| def test_inherited_repr(self): |
| class MyEnum(Enum): |
| def __repr__(self): |
| return "My name is %s." % self.name |
| class MyIntEnum(int, MyEnum): |
| this = 1 |
| that = 2 |
| theother = 3 |
| self.assertEqual(repr(MyIntEnum.that), "My name is that.") |
| |
| def test_multiple_mixin_mro(self): |
| class auto_enum(EnumMeta): |
| def __new__(metacls, cls, bases, classdict): |
| original_dict = classdict |
| classdict = enum._EnumDict() |
| for k, v in original_dict.items(): |
| classdict[k] = v |
| temp = type(classdict)() |
| names = set(classdict._member_names) |
| i = 0 |
| for k in classdict._member_names: |
| v = classdict[k] |
| if v == (): |
| v = i |
| else: |
| i = v |
| i += 1 |
| temp[k] = v |
| for k, v in classdict.items(): |
| if k not in names: |
| temp[k] = v |
| return super(auto_enum, metacls).__new__( |
| metacls, cls, bases, temp) |
| |
| AutoNumberedEnum = auto_enum('AutoNumberedEnum', (Enum,), {}) |
| |
| AutoIntEnum = auto_enum('AutoIntEnum', (IntEnum,), {}) |
| |
| class TestAutoNumber(AutoNumberedEnum): |
| a = () |
| b = 3 |
| c = () |
| |
| class TestAutoInt(AutoIntEnum): |
| a = () |
| b = 3 |
| c = () |
| |
| def test_subclasses_with_getnewargs(self): |
| class NamedInt(int): |
| __qualname__ = 'NamedInt' # needed for pickle protocol 4 |
| def __new__(cls, *args): |
| _args = args |
| if len(args) < 1: |
| raise TypeError("name and value must be specified") |
| name, args = args[0], args[1:] |
| self = int.__new__(cls, *args) |
| self._intname = name |
| self._args = _args |
| return self |
| def __getnewargs__(self): |
| return self._args |
| @property |
| def __name__(self): |
| return self._intname |
| def __repr__(self): |
| # repr() is updated to include the name and type info |
| return "%s(%r, %s)" % (type(self).__name__, |
| self.__name__, |
| int.__repr__(self)) |
| def __str__(self): |
| # str() is unchanged, even if it relies on the repr() fallback |
| base = int |
| base_str = base.__str__ |
| if base_str.__objclass__ is object: |
| return base.__repr__(self) |
| return base_str(self) |
| # for simplicity, we only define one operator that |
| # propagates expressions |
| def __add__(self, other): |
| temp = int(self) + int( other) |
| if isinstance(self, NamedInt) and isinstance(other, NamedInt): |
| return NamedInt( |
| '(%s + %s)' % (self.__name__, other.__name__), |
| temp ) |
| else: |
| return temp |
| |
| class NEI(NamedInt, Enum): |
| __qualname__ = 'NEI' # needed for pickle protocol 4 |
| x = ('the-x', 1) |
| y = ('the-y', 2) |
| |
| self.assertTrue(NEI.__new__ is Enum.__new__) |
| self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)") |
| globals()['NamedInt'] = NamedInt |
| globals()['NEI'] = NEI |
| NI5 = NamedInt('test', 5) |
| self.assertEqual(NI5, 5) |
| test_pickle_dump_load(self.assertTrue, NI5, 5) |
| self.assertEqual(NEI.y.value, 2) |
| test_pickle_dump_load(self.assertTrue, NEI.y) |
| |
| if pyver >= 3.4: |
| def test_subclasses_with_getnewargs_ex(self): |
| class NamedInt(int): |
| __qualname__ = 'NamedInt' # needed for pickle protocol 4 |
| def __new__(cls, *args): |
| _args = args |
| if len(args) < 2: |
| raise TypeError("name and value must be specified") |
| name, args = args[0], args[1:] |
| self = int.__new__(cls, *args) |
| self._intname = name |
| self._args = _args |
| return self |
| def __getnewargs_ex__(self): |
| return self._args, {} |
| @property |
| def __name__(self): |
| return self._intname |
| def __repr__(self): |
| # repr() is updated to include the name and type info |
| return "{}({!r}, {})".format(type(self).__name__, |
| self.__name__, |
| int.__repr__(self)) |
| def __str__(self): |
| # str() is unchanged, even if it relies on the repr() fallback |
| base = int |
| base_str = base.__str__ |
| if base_str.__objclass__ is object: |
| return base.__repr__(self) |
| return base_str(self) |
| # for simplicity, we only define one operator that |
| # propagates expressions |
| def __add__(self, other): |
| temp = int(self) + int( other) |
| if isinstance(self, NamedInt) and isinstance(other, NamedInt): |
| return NamedInt( |
| '({0} + {1})'.format(self.__name__, other.__name__), |
| temp ) |
| else: |
| return temp |
| |
| class NEI(NamedInt, Enum): |
| __qualname__ = 'NEI' # needed for pickle protocol 4 |
| x = ('the-x', 1) |
| y = ('the-y', 2) |
| |
| |
| self.assertIs(NEI.__new__, Enum.__new__) |
| self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)") |
| globals()['NamedInt'] = NamedInt |
| globals()['NEI'] = NEI |
| NI5 = NamedInt('test', 5) |
| self.assertEqual(NI5, 5) |
| test_pickle_dump_load(self.assertEqual, NI5, 5, protocol=(4, HIGHEST_PROTOCOL)) |
| self.assertEqual(NEI.y.value, 2) |
| test_pickle_dump_load(self.assertTrue, NEI.y, protocol=(4, HIGHEST_PROTOCOL)) |
| |
| def test_subclasses_with_reduce(self): |
| class NamedInt(int): |
| __qualname__ = 'NamedInt' # needed for pickle protocol 4 |
| def __new__(cls, *args): |
| _args = args |
| if len(args) < 1: |
| raise TypeError("name and value must be specified") |
| name, args = args[0], args[1:] |
| self = int.__new__(cls, *args) |
| self._intname = name |
| self._args = _args |
| return self |
| def __reduce__(self): |
| return self.__class__, self._args |
| @property |
| def __name__(self): |
| return self._intname |
| def __repr__(self): |
| # repr() is updated to include the name and type info |
| return "%s(%r, %s)" % (type(self).__name__, |
| self.__name__, |
| int.__repr__(self)) |
| def __str__(self): |
| # str() is unchanged, even if it relies on the repr() fallback |
| base = int |
| base_str = base.__str__ |
| if base_str.__objclass__ is object: |
| return base.__repr__(self) |
| return base_str(self) |
| # for simplicity, we only define one operator that |
| # propagates expressions |
| def __add__(self, other): |
| temp = int(self) + int( other) |
| if isinstance(self, NamedInt) and isinstance(other, NamedInt): |
| return NamedInt( |
| '(%s + %s)' % (self.__name__, other.__name__), |
| temp ) |
| else: |
| return temp |
| |
| class NEI(NamedInt, Enum): |
| __qualname__ = 'NEI' # needed for pickle protocol 4 |
| x = ('the-x', 1) |
| y = ('the-y', 2) |
| |
| |
| self.assertTrue(NEI.__new__ is Enum.__new__) |
| self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)") |
| globals()['NamedInt'] = NamedInt |
| globals()['NEI'] = NEI |
| NI5 = NamedInt('test', 5) |
| self.assertEqual(NI5, 5) |
| test_pickle_dump_load(self.assertEqual, NI5, 5) |
| self.assertEqual(NEI.y.value, 2) |
| test_pickle_dump_load(self.assertTrue, NEI.y) |
| |
| def test_subclasses_with_reduce_ex(self): |
| class NamedInt(int): |
| __qualname__ = 'NamedInt' # needed for pickle protocol 4 |
| def __new__(cls, *args): |
| _args = args |
| if len(args) < 1: |
| raise TypeError("name and value must be specified") |
| name, args = args[0], args[1:] |
| self = int.__new__(cls, *args) |
| self._intname = name |
| self._args = _args |
| return self |
| def __reduce_ex__(self, proto): |
| return self.__class__, self._args |
| @property |
| def __name__(self): |
| return self._intname |
| def __repr__(self): |
| # repr() is updated to include the name and type info |
| return "%s(%r, %s)" % (type(self).__name__, |
| self.__name__, |
| int.__repr__(self)) |
| def __str__(self): |
| # str() is unchanged, even if it relies on the repr() fallback |
| base = int |
| base_str = base.__str__ |
| if base_str.__objclass__ is object: |
| return base.__repr__(self) |
| return base_str(self) |
| # for simplicity, we only define one operator that |
| # propagates expressions |
| def __add__(self, other): |
| temp = int(self) + int( other) |
| if isinstance(self, NamedInt) and isinstance(other, NamedInt): |
| return NamedInt( |
| '(%s + %s)' % (self.__name__, other.__name__), |
| temp ) |
| else: |
| return temp |
| |
| class NEI(NamedInt, Enum): |
| __qualname__ = 'NEI' # needed for pickle protocol 4 |
| x = ('the-x', 1) |
| y = ('the-y', 2) |
| |
| |
| self.assertTrue(NEI.__new__ is Enum.__new__) |
| self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)") |
| globals()['NamedInt'] = NamedInt |
| globals()['NEI'] = NEI |
| NI5 = NamedInt('test', 5) |
| self.assertEqual(NI5, 5) |
| test_pickle_dump_load(self.assertEqual, NI5, 5) |
| self.assertEqual(NEI.y.value, 2) |
| test_pickle_dump_load(self.assertTrue, NEI.y) |
| |
| def test_subclasses_without_direct_pickle_support(self): |
| class NamedInt(int): |
| __qualname__ = 'NamedInt' |
| def __new__(cls, *args): |
| _args = args |
| name, args = args[0], args[1:] |
| if len(args) == 0: |
| raise TypeError("name and value must be specified") |
| self = int.__new__(cls, *args) |
| self._intname = name |
| self._args = _args |
| return self |
| @property |
| def __name__(self): |
| return self._intname |
| def __repr__(self): |
| # repr() is updated to include the name and type info |
| return "%s(%r, %s)" % (type(self).__name__, |
| self.__name__, |
| int.__repr__(self)) |
| def __str__(self): |
| # str() is unchanged, even if it relies on the repr() fallback |
| base = int |
| base_str = base.__str__ |
| if base_str.__objclass__ is object: |
| return base.__repr__(self) |
| return base_str(self) |
| # for simplicity, we only define one operator that |
| # propagates expressions |
| def __add__(self, other): |
| temp = int(self) + int( other) |
| if isinstance(self, NamedInt) and isinstance(other, NamedInt): |
| return NamedInt( |
| '(%s + %s)' % (self.__name__, other.__name__), |
| temp ) |
| else: |
| return temp |
| |
| class NEI(NamedInt, Enum): |
| __qualname__ = 'NEI' |
| x = ('the-x', 1) |
| y = ('the-y', 2) |
| |
| self.assertTrue(NEI.__new__ is Enum.__new__) |
| self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)") |
| globals()['NamedInt'] = NamedInt |
| globals()['NEI'] = NEI |
| NI5 = NamedInt('test', 5) |
| self.assertEqual(NI5, 5) |
| self.assertEqual(NEI.y.value, 2) |
| test_pickle_exception(self.assertRaises, TypeError, NEI.x) |
| test_pickle_exception(self.assertRaises, PicklingError, NEI) |
| |
| def test_subclasses_without_direct_pickle_support_using_name(self): |
| class NamedInt(int): |
| __qualname__ = 'NamedInt' |
| def __new__(cls, *args): |
| _args = args |
| name, args = args[0], args[1:] |
| if len(args) == 0: |
| raise TypeError("name and value must be specified") |
| self = int.__new__(cls, *args) |
| self._intname = name |
| self._args = _args |
| return self |
| @property |
| def __name__(self): |
| return self._intname |
| def __repr__(self): |
| # repr() is updated to include the name and type info |
| return "%s(%r, %s)" % (type(self).__name__, |
| self.__name__, |
| int.__repr__(self)) |
| def __str__(self): |
| # str() is unchanged, even if it relies on the repr() fallback |
| base = int |
| base_str = base.__str__ |
| if base_str.__objclass__ is object: |
| return base.__repr__(self) |
| return base_str(self) |
| # for simplicity, we only define one operator that |
| # propagates expressions |
| def __add__(self, other): |
| temp = int(self) + int( other) |
| if isinstance(self, NamedInt) and isinstance(other, NamedInt): |
| return NamedInt( |
| '(%s + %s)' % (self.__name__, other.__name__), |
| temp ) |
| else: |
| return temp |
| |
| class NEI(NamedInt, Enum): |
| __qualname__ = 'NEI' |
| x = ('the-x', 1) |
| y = ('the-y', 2) |
| def __reduce_ex__(self, proto): |
| return getattr, (self.__class__, self._name_) |
| |
| self.assertTrue(NEI.__new__ is Enum.__new__) |
| self.assertEqual(repr(NEI.x + NEI.y), "NamedInt('(the-x + the-y)', 3)") |
| globals()['NamedInt'] = NamedInt |
| globals()['NEI'] = NEI |
| NI5 = NamedInt('test', 5) |
| self.assertEqual(NI5, 5) |
| self.assertEqual(NEI.y.value, 2) |
| test_pickle_dump_load(self.assertTrue, NEI.y) |
| test_pickle_dump_load(self.assertTrue, NEI) |
| |
| def test_tuple_subclass(self): |
| class SomeTuple(tuple, Enum): |
| __qualname__ = 'SomeTuple' |
| first = (1, 'for the money') |
| second = (2, 'for the show') |
| third = (3, 'for the music') |
| self.assertTrue(type(SomeTuple.first) is SomeTuple) |
| self.assertTrue(isinstance(SomeTuple.second, tuple)) |
| self.assertEqual(SomeTuple.third, (3, 'for the music')) |
| globals()['SomeTuple'] = SomeTuple |
| test_pickle_dump_load(self.assertTrue, SomeTuple.first) |
| |
| def test_duplicate_values_give_unique_enum_items(self): |
| class AutoNumber(Enum): |
| __order__ = 'enum_m enum_d enum_y' |
| enum_m = () |
| enum_d = () |
| enum_y = () |
| def __new__(cls): |
| value = len(cls.__members__) + 1 |
| obj = object.__new__(cls) |
| obj._value_ = value |
| return obj |
| def __int__(self): |
| return int(self._value_) |
| self.assertEqual(int(AutoNumber.enum_d), 2) |
| self.assertEqual(AutoNumber.enum_y.value, 3) |
| self.assertTrue(AutoNumber(1) is AutoNumber.enum_m) |
| self.assertEqual( |
| list(AutoNumber), |
| [AutoNumber.enum_m, AutoNumber.enum_d, AutoNumber.enum_y], |
| ) |
| |
| def test_inherited_new_from_enhanced_enum(self): |
| class AutoNumber2(Enum): |
| def __new__(cls): |
| value = len(cls.__members__) + 1 |
| obj = object.__new__(cls) |
| obj._value_ = value |
| return obj |
| def __int__(self): |
| return int(self._value_) |
| class Color(AutoNumber2): |
| __order__ = 'red green blue' |
| red = () |
| green = () |
| blue = () |
| self.assertEqual(len(Color), 3, "wrong number of elements: %d (should be %d)" % (len(Color), 3)) |
| self.assertEqual(list(Color), [Color.red, Color.green, Color.blue]) |
| if pyver >= 3.0: |
| self.assertEqual(list(map(int, Color)), [1, 2, 3]) |
| |
| def test_inherited_new_from_mixed_enum(self): |
| class AutoNumber3(IntEnum): |
| def __new__(cls): |
| value = len(cls.__members__) + 1 |
| obj = int.__new__(cls, value) |
| obj._value_ = value |
| return obj |
| class Color(AutoNumber3): |
| red = () |
| green = () |
| blue = () |
| self.assertEqual(len(Color), 3, "wrong number of elements: %d (should be %d)" % (len(Color), 3)) |
| Color.red |
| Color.green |
| Color.blue |
| |
| def test_equality(self): |
| class AlwaysEqual: |
| def __eq__(self, other): |
| return True |
| class OrdinaryEnum(Enum): |
| a = 1 |
| self.assertEqual(AlwaysEqual(), OrdinaryEnum.a) |
| self.assertEqual(OrdinaryEnum.a, AlwaysEqual()) |
| |
| def test_ordered_mixin(self): |
| class OrderedEnum(Enum): |
| def __ge__(self, other): |
| if self.__class__ is other.__class__: |
| return self._value_ >= other._value_ |
| return NotImplemented |
| def __gt__(self, other): |
| if self.__class__ is other.__class__: |
| return self._value_ > other._value_ |
| return NotImplemented |
| def __le__(self, other): |
| if self.__class__ is other.__class__: |
| return self._value_ <= other._value_ |
| return NotImplemented |
| def __lt__(self, other): |
| if self.__class__ is other.__class__: |
| return self._value_ < other._value_ |
| return NotImplemented |
| class Grade(OrderedEnum): |
| __order__ = 'A B C D F' |
| A = 5 |
| B = 4 |
| C = 3 |
| D = 2 |
| F = 1 |
| self.assertEqual(list(Grade), [Grade.A, Grade.B, Grade.C, Grade.D, Grade.F]) |
| self.assertTrue(Grade.A > Grade.B) |
| self.assertTrue(Grade.F <= Grade.C) |
| self.assertTrue(Grade.D < Grade.A) |
| self.assertTrue(Grade.B >= Grade.B) |
| |
| def test_extending2(self): |
| def bad_extension(): |
| class Shade(Enum): |
| def shade(self): |
| print(self.name) |
| class Color(Shade): |
| red = 1 |
| green = 2 |
| blue = 3 |
| class MoreColor(Color): |
| cyan = 4 |
| magenta = 5 |
| yellow = 6 |
| self.assertRaises(TypeError, bad_extension) |
| |
| def test_extending3(self): |
| class Shade(Enum): |
| def shade(self): |
| return self.name |
| class Color(Shade): |
| def hex(self): |
| return '%s hexlified!' % self.value |
| class MoreColor(Color): |
| cyan = 4 |
| magenta = 5 |
| yellow = 6 |
| self.assertEqual(MoreColor.magenta.hex(), '5 hexlified!') |
| |
| def test_no_duplicates(self): |
| def bad_duplicates(): |
| class UniqueEnum(Enum): |
| def __init__(self, *args): |
| cls = self.__class__ |
| if any(self.value == e.value for e in cls): |
| a = self.name |
| e = cls(self.value).name |
| raise ValueError( |
| "aliases not allowed in UniqueEnum: %r --> %r" |
| % (a, e) |
| ) |
| class Color(UniqueEnum): |
| red = 1 |
| green = 2 |
| blue = 3 |
| class Color(UniqueEnum): |
| red = 1 |
| green = 2 |
| blue = 3 |
| grene = 2 |
| self.assertRaises(ValueError, bad_duplicates) |
| |
| def test_init(self): |
| class Planet(Enum): |
| MERCURY = (3.303e+23, 2.4397e6) |
| VENUS = (4.869e+24, 6.0518e6) |
| EARTH = (5.976e+24, 6.37814e6) |
| MARS = (6.421e+23, 3.3972e6) |
| JUPITER = (1.9e+27, 7.1492e7) |
| SATURN = (5.688e+26, 6.0268e7) |
| URANUS = (8.686e+25, 2.5559e7) |
| NEPTUNE = (1.024e+26, 2.4746e7) |
| def __init__(self, mass, radius): |
| self.mass = mass # in kilograms |
| self.radius = radius # in meters |
| @property |
| def surface_gravity(self): |
| # universal gravitational constant (m3 kg-1 s-2) |
| G = 6.67300E-11 |
| return G * self.mass / (self.radius * self.radius) |
| self.assertEqual(round(Planet.EARTH.surface_gravity, 2), 9.80) |
| self.assertEqual(Planet.EARTH.value, (5.976e+24, 6.37814e6)) |
| |
| def test_nonhash_value(self): |
| class AutoNumberInAList(Enum): |
| def __new__(cls): |
| value = [len(cls.__members__) + 1] |
| obj = object.__new__(cls) |
| obj._value_ = value |
| return obj |
| class ColorInAList(AutoNumberInAList): |
| __order__ = 'red green blue' |
| red = () |
| green = () |
| blue = () |
| self.assertEqual(list(ColorInAList), [ColorInAList.red, ColorInAList.green, ColorInAList.blue]) |
| self.assertEqual(ColorInAList.red.value, [1]) |
| self.assertEqual(ColorInAList([1]), ColorInAList.red) |
| |
| def test_conflicting_types_resolved_in_new(self): |
| class LabelledIntEnum(int, Enum): |
| def __new__(cls, *args): |
| value, label = args |
| obj = int.__new__(cls, value) |
| obj.label = label |
| obj._value_ = value |
| return obj |
| |
| class LabelledList(LabelledIntEnum): |
| unprocessed = (1, "Unprocessed") |
| payment_complete = (2, "Payment Complete") |
| |
| self.assertEqual(list(LabelledList), [LabelledList.unprocessed, LabelledList.payment_complete]) |
| self.assertEqual(LabelledList.unprocessed, 1) |
| self.assertEqual(LabelledList(1), LabelledList.unprocessed) |
| |
| class TestUnique(unittest.TestCase): |
| """2.4 doesn't allow class decorators, use function syntax.""" |
| |
| def test_unique_clean(self): |
| class Clean(Enum): |
| one = 1 |
| two = 'dos' |
| tres = 4.0 |
| unique(Clean) |
| class Cleaner(IntEnum): |
| single = 1 |
| double = 2 |
| triple = 3 |
| unique(Cleaner) |
| |
| def test_unique_dirty(self): |
| try: |
| class Dirty(Enum): |
| __order__ = 'one two tres' |
| one = 1 |
| two = 'dos' |
| tres = 1 |
| unique(Dirty) |
| except ValueError: |
| exc = sys.exc_info()[1] |
| message = exc.args[0] |
| self.assertTrue('tres -> one' in message) |
| |
| try: |
| class Dirtier(IntEnum): |
| __order__ = 'single double triple turkey' |
| single = 1 |
| double = 1 |
| triple = 3 |
| turkey = 3 |
| unique(Dirtier) |
| except ValueError: |
| exc = sys.exc_info()[1] |
| message = exc.args[0] |
| self.assertTrue('double -> single' in message) |
| self.assertTrue('turkey -> triple' in message) |
| |
| |
| class TestMe(unittest.TestCase): |
| |
| pass |
| |
| if __name__ == '__main__': |
| unittest.main() |
