562 lines
22 KiB
Python
562 lines
22 KiB
Python
import unittest, doctest, operator
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from test import test_support
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from collections import namedtuple
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import pickle, cPickle, copy
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import keyword
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import re
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from collections import Hashable, Iterable, Iterator
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from collections import Sized, Container, Callable
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from collections import Set, MutableSet
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from collections import Mapping, MutableMapping
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from collections import Sequence, MutableSequence
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TestNT = namedtuple('TestNT', 'x y z') # type used for pickle tests
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class TestNamedTuple(unittest.TestCase):
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def test_factory(self):
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Point = namedtuple('Point', 'x y')
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self.assertEqual(Point.__name__, 'Point')
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self.assertEqual(Point.__doc__, 'Point(x, y)')
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self.assertEqual(Point.__slots__, ())
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self.assertEqual(Point.__module__, __name__)
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self.assertEqual(Point.__getitem__, tuple.__getitem__)
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self.assertEqual(Point._fields, ('x', 'y'))
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self.assertRaises(ValueError, namedtuple, 'abc%', 'efg ghi') # type has non-alpha char
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self.assertRaises(ValueError, namedtuple, 'class', 'efg ghi') # type has keyword
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self.assertRaises(ValueError, namedtuple, '9abc', 'efg ghi') # type starts with digit
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self.assertRaises(ValueError, namedtuple, 'abc', 'efg g%hi') # field with non-alpha char
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self.assertRaises(ValueError, namedtuple, 'abc', 'abc class') # field has keyword
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self.assertRaises(ValueError, namedtuple, 'abc', '8efg 9ghi') # field starts with digit
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self.assertRaises(ValueError, namedtuple, 'abc', '_efg ghi') # field with leading underscore
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self.assertRaises(ValueError, namedtuple, 'abc', 'efg efg ghi') # duplicate field
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namedtuple('Point0', 'x1 y2') # Verify that numbers are allowed in names
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namedtuple('_', 'a b c') # Test leading underscores in a typename
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nt = namedtuple('nt', u'the quick brown fox') # check unicode input
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self.assert_("u'" not in repr(nt._fields))
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nt = namedtuple('nt', (u'the', u'quick')) # check unicode input
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self.assert_("u'" not in repr(nt._fields))
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self.assertRaises(TypeError, Point._make, [11]) # catch too few args
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self.assertRaises(TypeError, Point._make, [11, 22, 33]) # catch too many args
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def test_instance(self):
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Point = namedtuple('Point', 'x y')
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p = Point(11, 22)
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self.assertEqual(p, Point(x=11, y=22))
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self.assertEqual(p, Point(11, y=22))
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self.assertEqual(p, Point(y=22, x=11))
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self.assertEqual(p, Point(*(11, 22)))
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self.assertEqual(p, Point(**dict(x=11, y=22)))
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self.assertRaises(TypeError, Point, 1) # too few args
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self.assertRaises(TypeError, Point, 1, 2, 3) # too many args
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self.assertRaises(TypeError, eval, 'Point(XXX=1, y=2)', locals()) # wrong keyword argument
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self.assertRaises(TypeError, eval, 'Point(x=1)', locals()) # missing keyword argument
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self.assertEqual(repr(p), 'Point(x=11, y=22)')
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self.assert_('__dict__' not in dir(p)) # verify instance has no dict
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self.assert_('__weakref__' not in dir(p))
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self.assertEqual(p, Point._make([11, 22])) # test _make classmethod
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self.assertEqual(p._fields, ('x', 'y')) # test _fields attribute
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self.assertEqual(p._replace(x=1), (1, 22)) # test _replace method
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self.assertEqual(p._asdict(), dict(x=11, y=22)) # test _asdict method
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try:
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p._replace(x=1, error=2)
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except ValueError:
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pass
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else:
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self._fail('Did not detect an incorrect fieldname')
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# verify that field string can have commas
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Point = namedtuple('Point', 'x, y')
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p = Point(x=11, y=22)
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self.assertEqual(repr(p), 'Point(x=11, y=22)')
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# verify that fieldspec can be a non-string sequence
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Point = namedtuple('Point', ('x', 'y'))
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p = Point(x=11, y=22)
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self.assertEqual(repr(p), 'Point(x=11, y=22)')
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def test_tupleness(self):
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Point = namedtuple('Point', 'x y')
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p = Point(11, 22)
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self.assert_(isinstance(p, tuple))
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self.assertEqual(p, (11, 22)) # matches a real tuple
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self.assertEqual(tuple(p), (11, 22)) # coercable to a real tuple
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self.assertEqual(list(p), [11, 22]) # coercable to a list
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self.assertEqual(max(p), 22) # iterable
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self.assertEqual(max(*p), 22) # star-able
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x, y = p
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self.assertEqual(p, (x, y)) # unpacks like a tuple
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self.assertEqual((p[0], p[1]), (11, 22)) # indexable like a tuple
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self.assertRaises(IndexError, p.__getitem__, 3)
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self.assertEqual(p.x, x)
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self.assertEqual(p.y, y)
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self.assertRaises(AttributeError, eval, 'p.z', locals())
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def test_odd_sizes(self):
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Zero = namedtuple('Zero', '')
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self.assertEqual(Zero(), ())
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self.assertEqual(Zero._make([]), ())
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self.assertEqual(repr(Zero()), 'Zero()')
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self.assertEqual(Zero()._asdict(), {})
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self.assertEqual(Zero()._fields, ())
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Dot = namedtuple('Dot', 'd')
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self.assertEqual(Dot(1), (1,))
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self.assertEqual(Dot._make([1]), (1,))
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self.assertEqual(Dot(1).d, 1)
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self.assertEqual(repr(Dot(1)), 'Dot(d=1)')
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self.assertEqual(Dot(1)._asdict(), {'d':1})
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self.assertEqual(Dot(1)._replace(d=999), (999,))
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self.assertEqual(Dot(1)._fields, ('d',))
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n = 5000
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import string, random
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names = list(set(''.join([random.choice(string.ascii_letters)
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for j in range(10)]) for i in range(n)))
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n = len(names)
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Big = namedtuple('Big', names)
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b = Big(*range(n))
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self.assertEqual(b, tuple(range(n)))
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self.assertEqual(Big._make(range(n)), tuple(range(n)))
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for pos, name in enumerate(names):
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self.assertEqual(getattr(b, name), pos)
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repr(b) # make sure repr() doesn't blow-up
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d = b._asdict()
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d_expected = dict(zip(names, range(n)))
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self.assertEqual(d, d_expected)
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b2 = b._replace(**dict([(names[1], 999),(names[-5], 42)]))
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b2_expected = range(n)
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b2_expected[1] = 999
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b2_expected[-5] = 42
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self.assertEqual(b2, tuple(b2_expected))
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self.assertEqual(b._fields, tuple(names))
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def test_pickle(self):
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p = TestNT(x=10, y=20, z=30)
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for module in pickle, cPickle:
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loads = getattr(module, 'loads')
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dumps = getattr(module, 'dumps')
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for protocol in -1, 0, 1, 2:
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q = loads(dumps(p, protocol))
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self.assertEqual(p, q)
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self.assertEqual(p._fields, q._fields)
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def test_copy(self):
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p = TestNT(x=10, y=20, z=30)
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for copier in copy.copy, copy.deepcopy:
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q = copier(p)
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self.assertEqual(p, q)
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self.assertEqual(p._fields, q._fields)
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def test_name_conflicts(self):
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# Some names like "self", "cls", "tuple", "itemgetter", and "property"
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# failed when used as field names. Test to make sure these now work.
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T = namedtuple('T', 'itemgetter property self cls tuple')
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t = T(1, 2, 3, 4, 5)
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self.assertEqual(t, (1,2,3,4,5))
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newt = t._replace(itemgetter=10, property=20, self=30, cls=40, tuple=50)
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self.assertEqual(newt, (10,20,30,40,50))
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# Broader test of all interesting names in a template
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with test_support.captured_stdout() as template:
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T = namedtuple('T', 'x', verbose=True)
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words = set(re.findall('[A-Za-z]+', template.getvalue()))
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words -= set(keyword.kwlist)
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T = namedtuple('T', words)
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# test __new__
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values = tuple(range(len(words)))
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t = T(*values)
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self.assertEqual(t, values)
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t = T(**dict(zip(T._fields, values)))
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self.assertEqual(t, values)
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# test _make
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t = T._make(values)
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self.assertEqual(t, values)
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# exercise __repr__
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repr(t)
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# test _asdict
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self.assertEqual(t._asdict(), dict(zip(T._fields, values)))
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# test _replace
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t = T._make(values)
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newvalues = tuple(v*10 for v in values)
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newt = t._replace(**dict(zip(T._fields, newvalues)))
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self.assertEqual(newt, newvalues)
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# test _fields
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self.assertEqual(T._fields, tuple(words))
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# test __getnewargs__
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self.assertEqual(t.__getnewargs__(), values)
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class ABCTestCase(unittest.TestCase):
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def validate_abstract_methods(self, abc, *names):
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methodstubs = dict.fromkeys(names, lambda s, *args: 0)
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# everything should work will all required methods are present
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C = type('C', (abc,), methodstubs)
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C()
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# instantiation should fail if a required method is missing
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for name in names:
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stubs = methodstubs.copy()
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del stubs[name]
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C = type('C', (abc,), stubs)
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self.assertRaises(TypeError, C, name)
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def validate_isinstance(self, abc, name):
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stub = lambda s, *args: 0
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# new-style class
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C = type('C', (object,), {name: stub})
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self.assertTrue(isinstance(C(), abc))
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self.assertTrue(issubclass(C, abc))
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# old-style class
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class C: pass
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setattr(C, name, stub)
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self.assertTrue(isinstance(C(), abc))
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self.assertTrue(issubclass(C, abc))
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# new-style class
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C = type('C', (object,), {'__hash__': None})
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self.assertFalse(isinstance(C(), abc))
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self.assertFalse(issubclass(C, abc))
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# old-style class
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class C: pass
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self.assertFalse(isinstance(C(), abc))
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self.assertFalse(issubclass(C, abc))
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def validate_comparison(self, instance):
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ops = ['lt', 'gt', 'le', 'ge', 'ne', 'or', 'and', 'xor', 'sub']
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operators = {}
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for op in ops:
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name = '__' + op + '__'
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operators[name] = getattr(operator, name)
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class Other:
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def __init__(self):
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self.right_side = False
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def __eq__(self, other):
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self.right_side = True
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return True
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__lt__ = __eq__
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__gt__ = __eq__
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__le__ = __eq__
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__ge__ = __eq__
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__ne__ = __eq__
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__ror__ = __eq__
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__rand__ = __eq__
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__rxor__ = __eq__
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__rsub__ = __eq__
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for name, op in operators.items():
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if not hasattr(instance, name):
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continue
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other = Other()
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op(instance, other)
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self.assertTrue(other.right_side,'Right side not called for %s.%s'
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% (type(instance), name))
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class TestOneTrickPonyABCs(ABCTestCase):
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def test_Hashable(self):
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# Check some non-hashables
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non_samples = [list(), set(), dict()]
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for x in non_samples:
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self.failIf(isinstance(x, Hashable), repr(x))
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self.failIf(issubclass(type(x), Hashable), repr(type(x)))
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# Check some hashables
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samples = [None,
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int(), float(), complex(),
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str(),
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tuple(), frozenset(),
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int, list, object, type,
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]
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for x in samples:
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self.failUnless(isinstance(x, Hashable), repr(x))
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self.failUnless(issubclass(type(x), Hashable), repr(type(x)))
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self.assertRaises(TypeError, Hashable)
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# Check direct subclassing
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class H(Hashable):
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def __hash__(self):
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return super(H, self).__hash__()
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__eq__ = Hashable.__eq__ # Silence Py3k warning
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self.assertEqual(hash(H()), 0)
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self.failIf(issubclass(int, H))
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self.validate_abstract_methods(Hashable, '__hash__')
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self.validate_isinstance(Hashable, '__hash__')
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def test_Iterable(self):
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# Check some non-iterables
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non_samples = [None, 42, 3.14, 1j]
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for x in non_samples:
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self.failIf(isinstance(x, Iterable), repr(x))
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self.failIf(issubclass(type(x), Iterable), repr(type(x)))
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# Check some iterables
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samples = [str(),
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tuple(), list(), set(), frozenset(), dict(),
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dict().keys(), dict().items(), dict().values(),
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(lambda: (yield))(),
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(x for x in []),
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]
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for x in samples:
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self.failUnless(isinstance(x, Iterable), repr(x))
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self.failUnless(issubclass(type(x), Iterable), repr(type(x)))
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# Check direct subclassing
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class I(Iterable):
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def __iter__(self):
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return super(I, self).__iter__()
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self.assertEqual(list(I()), [])
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self.failIf(issubclass(str, I))
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self.validate_abstract_methods(Iterable, '__iter__')
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self.validate_isinstance(Iterable, '__iter__')
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def test_Iterator(self):
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non_samples = [None, 42, 3.14, 1j, "".encode('ascii'), "", (), [],
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{}, set()]
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for x in non_samples:
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self.failIf(isinstance(x, Iterator), repr(x))
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self.failIf(issubclass(type(x), Iterator), repr(type(x)))
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samples = [iter(str()),
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iter(tuple()), iter(list()), iter(dict()),
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iter(set()), iter(frozenset()),
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iter(dict().keys()), iter(dict().items()),
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iter(dict().values()),
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(lambda: (yield))(),
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(x for x in []),
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]
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for x in samples:
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self.failUnless(isinstance(x, Iterator), repr(x))
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self.failUnless(issubclass(type(x), Iterator), repr(type(x)))
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self.validate_abstract_methods(Iterator, 'next')
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self.validate_isinstance(Iterator, 'next')
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def test_Sized(self):
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non_samples = [None, 42, 3.14, 1j,
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(lambda: (yield))(),
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(x for x in []),
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]
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for x in non_samples:
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self.failIf(isinstance(x, Sized), repr(x))
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self.failIf(issubclass(type(x), Sized), repr(type(x)))
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samples = [str(),
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tuple(), list(), set(), frozenset(), dict(),
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dict().keys(), dict().items(), dict().values(),
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]
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for x in samples:
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self.failUnless(isinstance(x, Sized), repr(x))
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self.failUnless(issubclass(type(x), Sized), repr(type(x)))
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self.validate_abstract_methods(Sized, '__len__')
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self.validate_isinstance(Sized, '__len__')
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def test_Container(self):
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non_samples = [None, 42, 3.14, 1j,
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(lambda: (yield))(),
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(x for x in []),
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]
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for x in non_samples:
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self.failIf(isinstance(x, Container), repr(x))
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self.failIf(issubclass(type(x), Container), repr(type(x)))
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samples = [str(),
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tuple(), list(), set(), frozenset(), dict(),
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dict().keys(), dict().items(),
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]
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for x in samples:
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self.failUnless(isinstance(x, Container), repr(x))
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self.failUnless(issubclass(type(x), Container), repr(type(x)))
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self.validate_abstract_methods(Container, '__contains__')
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self.validate_isinstance(Container, '__contains__')
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def test_Callable(self):
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non_samples = [None, 42, 3.14, 1j,
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"", "".encode('ascii'), (), [], {}, set(),
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(lambda: (yield))(),
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(x for x in []),
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]
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for x in non_samples:
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self.failIf(isinstance(x, Callable), repr(x))
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self.failIf(issubclass(type(x), Callable), repr(type(x)))
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samples = [lambda: None,
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type, int, object,
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len,
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list.append, [].append,
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]
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for x in samples:
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self.failUnless(isinstance(x, Callable), repr(x))
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self.failUnless(issubclass(type(x), Callable), repr(type(x)))
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self.validate_abstract_methods(Callable, '__call__')
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self.validate_isinstance(Callable, '__call__')
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def test_direct_subclassing(self):
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for B in Hashable, Iterable, Iterator, Sized, Container, Callable:
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class C(B):
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pass
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self.failUnless(issubclass(C, B))
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self.failIf(issubclass(int, C))
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def test_registration(self):
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for B in Hashable, Iterable, Iterator, Sized, Container, Callable:
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class C:
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__metaclass__ = type
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__hash__ = None # Make sure it isn't hashable by default
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self.failIf(issubclass(C, B), B.__name__)
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B.register(C)
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self.failUnless(issubclass(C, B))
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class WithSet(MutableSet):
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def __init__(self, it=()):
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self.data = set(it)
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def __len__(self):
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return len(self.data)
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def __iter__(self):
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return iter(self.data)
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def __contains__(self, item):
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return item in self.data
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def add(self, item):
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self.data.add(item)
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def discard(self, item):
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self.data.discard(item)
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class TestCollectionABCs(ABCTestCase):
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# XXX For now, we only test some virtual inheritance properties.
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# We should also test the proper behavior of the collection ABCs
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# as real base classes or mix-in classes.
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def test_Set(self):
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for sample in [set, frozenset]:
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self.failUnless(isinstance(sample(), Set))
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self.failUnless(issubclass(sample, Set))
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self.validate_abstract_methods(Set, '__contains__', '__iter__', '__len__')
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class MySet(Set):
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def __contains__(self, x):
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return False
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def __len__(self):
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return 0
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def __iter__(self):
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return iter([])
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self.validate_comparison(MySet())
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def test_hash_Set(self):
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class OneTwoThreeSet(Set):
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def __init__(self):
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self.contents = [1, 2, 3]
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def __contains__(self, x):
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return x in self.contents
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def __len__(self):
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return len(self.contents)
|
|
def __iter__(self):
|
|
return iter(self.contents)
|
|
def __hash__(self):
|
|
return self._hash()
|
|
a, b = OneTwoThreeSet(), OneTwoThreeSet()
|
|
self.failUnless(hash(a) == hash(b))
|
|
|
|
def test_MutableSet(self):
|
|
self.failUnless(isinstance(set(), MutableSet))
|
|
self.failUnless(issubclass(set, MutableSet))
|
|
self.failIf(isinstance(frozenset(), MutableSet))
|
|
self.failIf(issubclass(frozenset, MutableSet))
|
|
self.validate_abstract_methods(MutableSet, '__contains__', '__iter__', '__len__',
|
|
'add', 'discard')
|
|
|
|
def test_issue_5647(self):
|
|
# MutableSet.__iand__ mutated the set during iteration
|
|
s = WithSet('abcd')
|
|
s &= WithSet('cdef') # This used to fail
|
|
self.assertEqual(set(s), set('cd'))
|
|
|
|
def test_issue_4920(self):
|
|
# MutableSet.pop() method did not work
|
|
class MySet(collections.MutableSet):
|
|
__slots__=['__s']
|
|
def __init__(self,items=None):
|
|
if items is None:
|
|
items=[]
|
|
self.__s=set(items)
|
|
def __contains__(self,v):
|
|
return v in self.__s
|
|
def __iter__(self):
|
|
return iter(self.__s)
|
|
def __len__(self):
|
|
return len(self.__s)
|
|
def add(self,v):
|
|
result=v not in self.__s
|
|
self.__s.add(v)
|
|
return result
|
|
def discard(self,v):
|
|
result=v in self.__s
|
|
self.__s.discard(v)
|
|
return result
|
|
def __repr__(self):
|
|
return "MySet(%s)" % repr(list(self))
|
|
s = MySet([5,43,2,1])
|
|
self.assertEqual(s.pop(), 1)
|
|
|
|
def test_Mapping(self):
|
|
for sample in [dict]:
|
|
self.failUnless(isinstance(sample(), Mapping))
|
|
self.failUnless(issubclass(sample, Mapping))
|
|
self.validate_abstract_methods(Mapping, '__contains__', '__iter__', '__len__',
|
|
'__getitem__')
|
|
class MyMapping(collections.Mapping):
|
|
def __len__(self):
|
|
return 0
|
|
def __getitem__(self, i):
|
|
raise IndexError
|
|
def __iter__(self):
|
|
return iter(())
|
|
self.validate_comparison(MyMapping())
|
|
|
|
def test_MutableMapping(self):
|
|
for sample in [dict]:
|
|
self.failUnless(isinstance(sample(), MutableMapping))
|
|
self.failUnless(issubclass(sample, MutableMapping))
|
|
self.validate_abstract_methods(MutableMapping, '__contains__', '__iter__', '__len__',
|
|
'__getitem__', '__setitem__', '__delitem__')
|
|
|
|
def test_Sequence(self):
|
|
for sample in [tuple, list, str]:
|
|
self.failUnless(isinstance(sample(), Sequence))
|
|
self.failUnless(issubclass(sample, Sequence))
|
|
self.failUnless(issubclass(basestring, Sequence))
|
|
self.failUnless(isinstance(range(10), Sequence))
|
|
self.failUnless(issubclass(xrange, Sequence))
|
|
self.failUnless(issubclass(str, Sequence))
|
|
self.validate_abstract_methods(Sequence, '__contains__', '__iter__', '__len__',
|
|
'__getitem__')
|
|
|
|
def test_MutableSequence(self):
|
|
for sample in [tuple, str]:
|
|
self.failIf(isinstance(sample(), MutableSequence))
|
|
self.failIf(issubclass(sample, MutableSequence))
|
|
for sample in [list]:
|
|
self.failUnless(isinstance(sample(), MutableSequence))
|
|
self.failUnless(issubclass(sample, MutableSequence))
|
|
self.failIf(issubclass(basestring, MutableSequence))
|
|
self.validate_abstract_methods(MutableSequence, '__contains__', '__iter__',
|
|
'__len__', '__getitem__', '__setitem__', '__delitem__', 'insert')
|
|
|
|
import collections
|
|
|
|
def test_main(verbose=None):
|
|
NamedTupleDocs = doctest.DocTestSuite(module=collections)
|
|
test_classes = [TestNamedTuple, NamedTupleDocs, TestOneTrickPonyABCs, TestCollectionABCs]
|
|
test_support.run_unittest(*test_classes)
|
|
test_support.run_doctest(collections, verbose)
|
|
|
|
if __name__ == "__main__":
|
|
test_main(verbose=True)
|