mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-10 02:39:59 -04:00
Mike Bayer
1205 lines
33 KiB
Python
1205 lines
33 KiB
Python
from test.lib.testing import assert_raises, assert_raises_message
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import copy, threading
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from sqlalchemy import util, sql, exc
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from test.lib.testing import eq_, is_, ne_, fails_if
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from test.lib.util import gc_collect, picklers
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from sqlalchemy.util import classproperty
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from test.lib import fixtures
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class OrderedDictTest(fixtures.TestBase):
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def test_odict(self):
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o = util.OrderedDict()
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o['a'] = 1
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o['b'] = 2
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o['snack'] = 'attack'
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o['c'] = 3
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eq_(o.keys(), ['a', 'b', 'snack', 'c'])
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eq_(o.values(), [1, 2, 'attack', 3])
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o.pop('snack')
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eq_(o.keys(), ['a', 'b', 'c'])
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eq_(o.values(), [1, 2, 3])
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try:
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o.pop('eep')
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assert False
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except KeyError:
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pass
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eq_(o.pop('eep', 'woot'), 'woot')
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try:
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o.pop('whiff', 'bang', 'pow')
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assert False
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except TypeError:
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pass
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eq_(o.keys(), ['a', 'b', 'c'])
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eq_(o.values(), [1, 2, 3])
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o2 = util.OrderedDict(d=4)
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o2['e'] = 5
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eq_(o2.keys(), ['d', 'e'])
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eq_(o2.values(), [4, 5])
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o.update(o2)
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eq_(o.keys(), ['a', 'b', 'c', 'd', 'e'])
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eq_(o.values(), [1, 2, 3, 4, 5])
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o.setdefault('c', 'zzz')
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o.setdefault('f', 6)
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eq_(o.keys(), ['a', 'b', 'c', 'd', 'e', 'f'])
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eq_(o.values(), [1, 2, 3, 4, 5, 6])
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def test_odict_constructor(self):
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o = util.OrderedDict([('name', 'jbe'), ('fullname', 'jonathan'
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), ('password', '')])
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eq_(o.keys(), ['name', 'fullname', 'password'])
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def test_odict_copy(self):
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o = util.OrderedDict()
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o["zzz"] = 1
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o["aaa"] = 2
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eq_(o.keys(), ['zzz', 'aaa'])
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o2 = o.copy()
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eq_(o2.keys(), o.keys())
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o3 = copy.copy(o)
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eq_(o3.keys(), o.keys())
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class OrderedSetTest(fixtures.TestBase):
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def test_mutators_against_iter(self):
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# testing a set modified against an iterator
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o = util.OrderedSet([3,2, 4, 5])
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eq_(o.difference(iter([3,4])), util.OrderedSet([2,5]))
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eq_(o.intersection(iter([3,4, 6])), util.OrderedSet([3, 4]))
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eq_(o.union(iter([3,4, 6])), util.OrderedSet([2, 3, 4, 5, 6]))
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class FrozenDictTest(fixtures.TestBase):
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def test_serialize(self):
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d = util.immutabledict({1:2, 3:4})
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for loads, dumps in picklers():
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print loads(dumps(d))
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class MemoizedAttrTest(fixtures.TestBase):
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def test_memoized_property(self):
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val = [20]
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class Foo(object):
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@util.memoized_property
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def bar(self):
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v = val[0]
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val[0] += 1
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return v
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ne_(Foo.bar, None)
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f1 = Foo()
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assert 'bar' not in f1.__dict__
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eq_(f1.bar, 20)
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eq_(f1.bar, 20)
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eq_(val[0], 21)
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eq_(f1.__dict__['bar'] , 20)
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def test_memoized_instancemethod(self):
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val = [20]
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class Foo(object):
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@util.memoized_instancemethod
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def bar(self):
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v = val[0]
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val[0] += 1
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return v
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ne_(Foo.bar, None)
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f1 = Foo()
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assert 'bar' not in f1.__dict__
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eq_(f1.bar(), 20)
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eq_(f1.bar(), 20)
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eq_(val[0], 21)
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class ColumnCollectionTest(fixtures.TestBase):
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def test_in(self):
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cc = sql.ColumnCollection()
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cc.add(sql.column('col1'))
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cc.add(sql.column('col2'))
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cc.add(sql.column('col3'))
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assert 'col1' in cc
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assert 'col2' in cc
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try:
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cc['col1'] in cc
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assert False
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except exc.ArgumentError, e:
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eq_(str(e), "__contains__ requires a string argument")
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def test_compare(self):
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cc1 = sql.ColumnCollection()
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cc2 = sql.ColumnCollection()
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cc3 = sql.ColumnCollection()
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c1 = sql.column('col1')
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c2 = c1.label('col2')
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c3 = sql.column('col3')
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cc1.add(c1)
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cc2.add(c2)
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cc3.add(c3)
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assert (cc1==cc2).compare(c1 == c2)
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assert not (cc1==cc3).compare(c2 == c3)
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class LRUTest(fixtures.TestBase):
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def test_lru(self):
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class item(object):
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def __init__(self, id):
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self.id = id
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def __str__(self):
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return "item id %d" % self.id
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l = util.LRUCache(10, threshold=.2)
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for id in range(1,20):
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l[id] = item(id)
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# first couple of items should be gone
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assert 1 not in l
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assert 2 not in l
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# next batch over the threshold of 10 should be present
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for id_ in range(11,20):
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assert id_ in l
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l[12]
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l[15]
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l[23] = item(23)
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l[24] = item(24)
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l[25] = item(25)
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l[26] = item(26)
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l[27] = item(27)
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assert 11 not in l
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assert 13 not in l
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for id_ in (25, 24, 23, 14, 12, 19, 18, 17, 16, 15):
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assert id_ in l
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i1 = l[25]
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i2 = item(25)
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l[25] = i2
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assert 25 in l
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assert l[25] is i2
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class ImmutableSubclass(str):
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pass
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class FlattenIteratorTest(fixtures.TestBase):
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def test_flatten(self):
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assert list(util.flatten_iterator([[1, 2, 3], [4, 5, 6], 7,
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8])) == [1, 2, 3, 4, 5, 6, 7, 8]
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def test_str_with_iter(self):
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"""ensure that a str object with an __iter__ method (like in
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PyPy) is not interpreted as an iterable.
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"""
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class IterString(str):
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def __iter__(self):
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return iter(self + '')
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assert list(util.flatten_iterator([IterString('asdf'),
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[IterString('x'), IterString('y')]])) == ['asdf',
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'x', 'y']
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class HashOverride(object):
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def __init__(self, value=None):
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self.value = value
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def __hash__(self):
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return hash(self.value)
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class EqOverride(object):
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def __init__(self, value=None):
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self.value = value
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__hash__ = object.__hash__
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def __eq__(self, other):
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if isinstance(other, EqOverride):
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return self.value == other.value
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else:
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return False
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def __ne__(self, other):
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if isinstance(other, EqOverride):
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return self.value != other.value
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else:
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return True
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class HashEqOverride(object):
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def __init__(self, value=None):
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self.value = value
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def __hash__(self):
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return hash(self.value)
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def __eq__(self, other):
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if isinstance(other, EqOverride):
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return self.value == other.value
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else:
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return False
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def __ne__(self, other):
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if isinstance(other, EqOverride):
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return self.value != other.value
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else:
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return True
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class IdentitySetTest(fixtures.TestBase):
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def assert_eq(self, identityset, expected_iterable):
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expected = sorted([id(o) for o in expected_iterable])
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found = sorted([id(o) for o in identityset])
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eq_(found, expected)
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def test_init(self):
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ids = util.IdentitySet([1,2,3,2,1])
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self.assert_eq(ids, [1,2,3])
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ids = util.IdentitySet(ids)
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self.assert_eq(ids, [1,2,3])
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ids = util.IdentitySet()
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self.assert_eq(ids, [])
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ids = util.IdentitySet([])
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self.assert_eq(ids, [])
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ids = util.IdentitySet(ids)
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self.assert_eq(ids, [])
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def test_add(self):
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for type_ in (object, ImmutableSubclass):
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data = [type_(), type_()]
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ids = util.IdentitySet()
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for i in range(2) + range(2):
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ids.add(data[i])
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self.assert_eq(ids, data)
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for type_ in (EqOverride, HashOverride, HashEqOverride):
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data = [type_(1), type_(1), type_(2)]
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ids = util.IdentitySet()
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for i in range(3) + range(3):
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ids.add(data[i])
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self.assert_eq(ids, data)
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def test_dunder_sub(self):
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IdentitySet = util.IdentitySet
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o1, o2, o3 = object(), object(), object()
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ids1 = IdentitySet([o1])
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ids2 = IdentitySet([o1, o2, o3])
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eq_(
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ids2 - ids1,
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IdentitySet([o2, o3])
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)
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ids2 -= ids1
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eq_(ids2, IdentitySet([o2, o3]))
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def test_basic_sanity(self):
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IdentitySet = util.IdentitySet
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o1, o2, o3 = object(), object(), object()
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ids = IdentitySet([o1])
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ids.discard(o1)
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ids.discard(o1)
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ids.add(o1)
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ids.remove(o1)
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assert_raises(KeyError, ids.remove, o1)
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eq_(ids.copy(), ids)
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# explicit __eq__ and __ne__ tests
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assert ids != None
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assert not(ids == None)
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ne_(ids, IdentitySet([o1,o2,o3]))
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ids.clear()
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assert o1 not in ids
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ids.add(o2)
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assert o2 in ids
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eq_(ids.pop(), o2)
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ids.add(o1)
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eq_(len(ids), 1)
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isuper = IdentitySet([o1,o2])
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assert ids < isuper
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assert ids.issubset(isuper)
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assert isuper.issuperset(ids)
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assert isuper > ids
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eq_(ids.union(isuper), isuper)
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eq_(ids | isuper, isuper)
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eq_(isuper - ids, IdentitySet([o2]))
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eq_(isuper.difference(ids), IdentitySet([o2]))
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eq_(ids.intersection(isuper), IdentitySet([o1]))
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eq_(ids & isuper, IdentitySet([o1]))
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eq_(ids.symmetric_difference(isuper), IdentitySet([o2]))
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eq_(ids ^ isuper, IdentitySet([o2]))
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ids.update(isuper)
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ids |= isuper
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ids.difference_update(isuper)
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ids -= isuper
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ids.intersection_update(isuper)
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ids &= isuper
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ids.symmetric_difference_update(isuper)
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ids ^= isuper
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ids.update('foobar')
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try:
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ids |= 'foobar'
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assert False
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except TypeError:
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assert True
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try:
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s = set([o1,o2])
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s |= ids
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assert False
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except TypeError:
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assert True
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assert_raises(TypeError, util.cmp, ids)
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assert_raises(TypeError, hash, ids)
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def test_difference(self):
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os1 = util.IdentitySet([1,2,3])
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os2 = util.IdentitySet([3,4,5])
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s1 = set([1,2,3])
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s2 = set([3,4,5])
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eq_(os1 - os2, util.IdentitySet([1, 2]))
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eq_(os2 - os1, util.IdentitySet([4, 5]))
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assert_raises(TypeError, lambda: os1 - s2)
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assert_raises(TypeError, lambda: os1 - [3, 4, 5])
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assert_raises(TypeError, lambda: s1 - os2)
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assert_raises(TypeError, lambda: s1 - [3, 4, 5])
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class OrderedIdentitySetTest(fixtures.TestBase):
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def assert_eq(self, identityset, expected_iterable):
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expected = [id(o) for o in expected_iterable]
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found = [id(o) for o in identityset]
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eq_(found, expected)
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def test_add(self):
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elem = object
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s = util.OrderedIdentitySet()
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s.add(elem())
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s.add(elem())
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def test_intersection(self):
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elem = object
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eq_ = self.assert_eq
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a, b, c, d, e, f, g = \
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elem(), elem(), elem(), elem(), elem(), elem(), elem()
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s1 = util.OrderedIdentitySet([a, b, c])
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s2 = util.OrderedIdentitySet([d, e, f])
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s3 = util.OrderedIdentitySet([a, d, f, g])
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eq_(s1.intersection(s2), [])
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eq_(s1.intersection(s3), [a])
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eq_(s1.union(s2).intersection(s3), [a, d, f])
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class DictlikeIteritemsTest(fixtures.TestBase):
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baseline = set([('a', 1), ('b', 2), ('c', 3)])
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def _ok(self, instance):
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iterator = util.dictlike_iteritems(instance)
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eq_(set(iterator), self.baseline)
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def _notok(self, instance):
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assert_raises(TypeError,
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util.dictlike_iteritems,
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instance)
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def test_dict(self):
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d = dict(a=1,b=2,c=3)
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self._ok(d)
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def test_subdict(self):
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class subdict(dict):
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pass
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d = subdict(a=1,b=2,c=3)
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self._ok(d)
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# Py2K
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def test_UserDict(self):
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import UserDict
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d = UserDict.UserDict(a=1,b=2,c=3)
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self._ok(d)
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# end Py2K
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def test_object(self):
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self._notok(object())
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# Py2K
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def test_duck_1(self):
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class duck1(object):
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def iteritems(duck):
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return iter(self.baseline)
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self._ok(duck1())
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# end Py2K
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def test_duck_2(self):
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class duck2(object):
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def items(duck):
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return list(self.baseline)
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self._ok(duck2())
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# Py2K
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def test_duck_3(self):
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class duck3(object):
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def iterkeys(duck):
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return iter(['a', 'b', 'c'])
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def __getitem__(duck, key):
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return dict(a=1,b=2,c=3).get(key)
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self._ok(duck3())
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# end Py2K
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def test_duck_4(self):
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class duck4(object):
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def iterkeys(duck):
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return iter(['a', 'b', 'c'])
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self._notok(duck4())
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def test_duck_5(self):
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class duck5(object):
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def keys(duck):
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return ['a', 'b', 'c']
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def get(duck, key):
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return dict(a=1,b=2,c=3).get(key)
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self._ok(duck5())
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def test_duck_6(self):
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class duck6(object):
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def keys(duck):
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return ['a', 'b', 'c']
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self._notok(duck6())
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|
|
|
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class DuckTypeCollectionTest(fixtures.TestBase):
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def test_sets(self):
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# Py2K
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import sets
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# end Py2K
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class SetLike(object):
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def add(self):
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pass
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class ForcedSet(list):
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__emulates__ = set
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for type_ in (set,
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# Py2K
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sets.Set,
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# end Py2K
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SetLike,
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ForcedSet):
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eq_(util.duck_type_collection(type_), set)
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instance = type_()
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eq_(util.duck_type_collection(instance), set)
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for type_ in (frozenset,
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# Py2K
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sets.ImmutableSet
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# end Py2K
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):
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is_(util.duck_type_collection(type_), None)
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instance = type_()
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is_(util.duck_type_collection(instance), None)
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|
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class ArgInspectionTest(fixtures.TestBase):
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def test_get_cls_kwargs(self):
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class A(object):
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def __init__(self, a):
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pass
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class A1(A):
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def __init__(self, a1):
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pass
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class A11(A1):
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def __init__(self, a11, **kw):
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pass
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class B(object):
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def __init__(self, b, **kw):
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pass
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class B1(B):
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def __init__(self, b1, **kw):
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pass
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class AB(A, B):
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def __init__(self, ab):
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pass
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class BA(B, A):
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def __init__(self, ba, **kwargs):
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pass
|
|
class BA1(BA):
|
|
pass
|
|
class CAB(A, B):
|
|
pass
|
|
class CBA(B, A):
|
|
pass
|
|
class CAB1(A, B1):
|
|
pass
|
|
class CB1A(B1, A):
|
|
pass
|
|
class D(object):
|
|
pass
|
|
|
|
def test(cls, *expected):
|
|
eq_(set(util.get_cls_kwargs(cls)), set(expected))
|
|
|
|
test(A, 'a')
|
|
test(A1, 'a1')
|
|
test(A11, 'a11', 'a1')
|
|
test(B, 'b')
|
|
test(B1, 'b1', 'b')
|
|
test(AB, 'ab')
|
|
test(BA, 'ba', 'b', 'a')
|
|
test(BA1, 'ba', 'b', 'a')
|
|
test(CAB, 'a')
|
|
test(CBA, 'b')
|
|
test(CAB1, 'a')
|
|
test(CB1A, 'b1', 'b')
|
|
test(D)
|
|
|
|
def test_get_func_kwargs(self):
|
|
def f1(): pass
|
|
def f2(foo): pass
|
|
def f3(*foo): pass
|
|
def f4(**foo): pass
|
|
|
|
def test(fn, *expected):
|
|
eq_(set(util.get_func_kwargs(fn)), set(expected))
|
|
|
|
test(f1)
|
|
test(f2, 'foo')
|
|
test(f3)
|
|
test(f4)
|
|
|
|
class SymbolTest(fixtures.TestBase):
|
|
def test_basic(self):
|
|
sym1 = util.symbol('foo')
|
|
assert sym1.name == 'foo'
|
|
sym2 = util.symbol('foo')
|
|
|
|
assert sym1 is sym2
|
|
assert sym1 == sym2
|
|
|
|
sym3 = util.symbol('bar')
|
|
assert sym1 is not sym3
|
|
assert sym1 != sym3
|
|
|
|
def test_pickle(self):
|
|
sym1 = util.symbol('foo')
|
|
sym2 = util.symbol('foo')
|
|
|
|
assert sym1 is sym2
|
|
|
|
# default
|
|
s = util.pickle.dumps(sym1)
|
|
sym3 = util.pickle.loads(s)
|
|
|
|
for protocol in 0, 1, 2:
|
|
print protocol
|
|
serial = util.pickle.dumps(sym1)
|
|
rt = util.pickle.loads(serial)
|
|
assert rt is sym1
|
|
assert rt is sym2
|
|
|
|
def test_bitflags(self):
|
|
sym1 = util.symbol('sym1', canonical=1)
|
|
sym2 = util.symbol('sym2', canonical=2)
|
|
|
|
assert sym1 & sym1
|
|
assert not sym1 & sym2
|
|
assert not sym1 & sym1 & sym2
|
|
|
|
def test_composites(self):
|
|
sym1 = util.symbol('sym1', canonical=1)
|
|
sym2 = util.symbol('sym2', canonical=2)
|
|
sym3 = util.symbol('sym3', canonical=4)
|
|
sym4 = util.symbol('sym4', canonical=8)
|
|
|
|
assert sym1 & (sym2 | sym1 | sym4)
|
|
assert not sym1 & (sym2 | sym3)
|
|
|
|
assert not (sym1 | sym2) & (sym3 | sym4)
|
|
assert (sym1 | sym2) & (sym2 | sym4)
|
|
|
|
|
|
class WeakIdentityMappingTest(fixtures.TestBase):
|
|
class Data(object):
|
|
pass
|
|
|
|
def _some_data(self, some=20):
|
|
return [self.Data() for _ in xrange(some)]
|
|
|
|
def _fixture(self, some=20):
|
|
data = self._some_data()
|
|
wim = util.WeakIdentityMapping()
|
|
for idx, obj in enumerate(data):
|
|
wim[obj] = idx
|
|
return data, wim
|
|
|
|
def test_delitem(self):
|
|
data, wim = self._fixture()
|
|
needle = data[-1]
|
|
|
|
assert needle in wim
|
|
assert id(needle) in wim.by_id
|
|
eq_(wim[needle], wim.by_id[id(needle)])
|
|
|
|
del wim[needle]
|
|
|
|
assert needle not in wim
|
|
assert id(needle) not in wim.by_id
|
|
eq_(len(wim), (len(data) - 1))
|
|
|
|
data.remove(needle)
|
|
|
|
assert needle not in wim
|
|
assert id(needle) not in wim.by_id
|
|
eq_(len(wim), len(data))
|
|
|
|
def test_setitem(self):
|
|
data, wim = self._fixture()
|
|
|
|
o1, oid1 = data[-1], id(data[-1])
|
|
|
|
assert o1 in wim
|
|
assert oid1 in wim.by_id
|
|
eq_(wim[o1], wim.by_id[oid1])
|
|
id_keys = set(wim.by_id.keys())
|
|
|
|
wim[o1] = 1234
|
|
assert o1 in wim
|
|
assert oid1 in wim.by_id
|
|
eq_(wim[o1], wim.by_id[oid1])
|
|
eq_(set(wim.by_id.keys()), id_keys)
|
|
|
|
o2 = self.Data()
|
|
oid2 = id(o2)
|
|
|
|
wim[o2] = 5678
|
|
assert o2 in wim
|
|
assert oid2 in wim.by_id
|
|
eq_(wim[o2], wim.by_id[oid2])
|
|
|
|
def test_pop(self):
|
|
data, wim = self._fixture()
|
|
needle = data[-1]
|
|
|
|
needle = data.pop()
|
|
assert needle in wim
|
|
assert id(needle) in wim.by_id
|
|
eq_(wim[needle], wim.by_id[id(needle)])
|
|
eq_(len(wim), (len(data) + 1))
|
|
|
|
wim.pop(needle)
|
|
assert needle not in wim
|
|
assert id(needle) not in wim.by_id
|
|
eq_(len(wim), len(data))
|
|
|
|
def test_pop_default(self):
|
|
data, wim = self._fixture()
|
|
needle = data[-1]
|
|
|
|
value = wim[needle]
|
|
x = wim.pop(needle, 123)
|
|
ne_(x, 123)
|
|
eq_(x, value)
|
|
assert needle not in wim
|
|
assert id(needle) not in wim.by_id
|
|
eq_(len(data), (len(wim) + 1))
|
|
|
|
n2 = self.Data()
|
|
y = wim.pop(n2, 456)
|
|
eq_(y, 456)
|
|
assert n2 not in wim
|
|
assert id(n2) not in wim.by_id
|
|
eq_(len(data), (len(wim) + 1))
|
|
|
|
def test_popitem(self):
|
|
data, wim = self._fixture()
|
|
(needle, idx) = wim.popitem()
|
|
|
|
assert needle in data
|
|
eq_(len(data), (len(wim) + 1))
|
|
assert id(needle) not in wim.by_id
|
|
|
|
def test_setdefault(self):
|
|
data, wim = self._fixture()
|
|
|
|
o1 = self.Data()
|
|
oid1 = id(o1)
|
|
|
|
assert o1 not in wim
|
|
|
|
res1 = wim.setdefault(o1, 123)
|
|
assert o1 in wim
|
|
assert oid1 in wim.by_id
|
|
eq_(res1, 123)
|
|
id_keys = set(wim.by_id.keys())
|
|
|
|
res2 = wim.setdefault(o1, 456)
|
|
assert o1 in wim
|
|
assert oid1 in wim.by_id
|
|
eq_(res2, 123)
|
|
assert set(wim.by_id.keys()) == id_keys
|
|
|
|
del wim[o1]
|
|
assert o1 not in wim
|
|
assert oid1 not in wim.by_id
|
|
ne_(set(wim.by_id.keys()), id_keys)
|
|
|
|
res3 = wim.setdefault(o1, 789)
|
|
assert o1 in wim
|
|
assert oid1 in wim.by_id
|
|
eq_(res3, 789)
|
|
eq_(set(wim.by_id.keys()), id_keys)
|
|
|
|
def test_clear(self):
|
|
data, wim = self._fixture()
|
|
|
|
assert len(data) == len(wim) == len(wim.by_id)
|
|
wim.clear()
|
|
|
|
eq_(wim, {})
|
|
eq_(wim.by_id, {})
|
|
|
|
def test_update(self):
|
|
data, wim = self._fixture()
|
|
assert_raises(NotImplementedError, wim.update)
|
|
|
|
def test_weak_clear(self):
|
|
data, wim = self._fixture()
|
|
|
|
assert len(data) == len(wim) == len(wim.by_id)
|
|
|
|
del data[:]
|
|
gc_collect()
|
|
|
|
eq_(wim, {})
|
|
eq_(wim.by_id, {})
|
|
eq_(wim._weakrefs, {})
|
|
|
|
def test_weak_single(self):
|
|
data, wim = self._fixture()
|
|
|
|
assert len(data) == len(wim) == len(wim.by_id)
|
|
|
|
oid = id(data[0])
|
|
del data[0]
|
|
gc_collect()
|
|
|
|
assert len(data) == len(wim) == len(wim.by_id)
|
|
assert oid not in wim.by_id
|
|
|
|
def test_weak_threadhop(self):
|
|
data, wim = self._fixture()
|
|
data = set(data)
|
|
|
|
cv = threading.Condition()
|
|
|
|
def empty(obj):
|
|
cv.acquire()
|
|
obj.clear()
|
|
cv.notify()
|
|
cv.release()
|
|
|
|
th = threading.Thread(target=empty, args=(data,))
|
|
|
|
cv.acquire()
|
|
th.start()
|
|
cv.wait()
|
|
cv.release()
|
|
gc_collect()
|
|
|
|
eq_(wim, {})
|
|
eq_(wim.by_id, {})
|
|
eq_(wim._weakrefs, {})
|
|
|
|
|
|
class TestFormatArgspec(fixtures.TestBase):
|
|
def test_specs(self):
|
|
def test(fn, wanted, grouped=None):
|
|
if grouped is None:
|
|
parsed = util.format_argspec_plus(fn)
|
|
else:
|
|
parsed = util.format_argspec_plus(fn, grouped=grouped)
|
|
eq_(parsed, wanted)
|
|
|
|
test(lambda: None,
|
|
{'args': '()', 'self_arg': None,
|
|
'apply_kw': '()', 'apply_pos': '()' })
|
|
|
|
test(lambda: None,
|
|
{'args': '', 'self_arg': None,
|
|
'apply_kw': '', 'apply_pos': '' },
|
|
grouped=False)
|
|
|
|
test(lambda self: None,
|
|
{'args': '(self)', 'self_arg': 'self',
|
|
'apply_kw': '(self)', 'apply_pos': '(self)' })
|
|
|
|
test(lambda self: None,
|
|
{'args': 'self', 'self_arg': 'self',
|
|
'apply_kw': 'self', 'apply_pos': 'self' },
|
|
grouped=False)
|
|
|
|
test(lambda *a: None,
|
|
{'args': '(*a)', 'self_arg': 'a[0]',
|
|
'apply_kw': '(*a)', 'apply_pos': '(*a)' })
|
|
|
|
test(lambda **kw: None,
|
|
{'args': '(**kw)', 'self_arg': None,
|
|
'apply_kw': '(**kw)', 'apply_pos': '(**kw)' })
|
|
|
|
test(lambda *a, **kw: None,
|
|
{'args': '(*a, **kw)', 'self_arg': 'a[0]',
|
|
'apply_kw': '(*a, **kw)', 'apply_pos': '(*a, **kw)' })
|
|
|
|
test(lambda a, *b: None,
|
|
{'args': '(a, *b)', 'self_arg': 'a',
|
|
'apply_kw': '(a, *b)', 'apply_pos': '(a, *b)' })
|
|
|
|
test(lambda a, **b: None,
|
|
{'args': '(a, **b)', 'self_arg': 'a',
|
|
'apply_kw': '(a, **b)', 'apply_pos': '(a, **b)' })
|
|
|
|
test(lambda a, *b, **c: None,
|
|
{'args': '(a, *b, **c)', 'self_arg': 'a',
|
|
'apply_kw': '(a, *b, **c)', 'apply_pos': '(a, *b, **c)' })
|
|
|
|
test(lambda a, b=1, **c: None,
|
|
{'args': '(a, b=1, **c)', 'self_arg': 'a',
|
|
'apply_kw': '(a, b=b, **c)', 'apply_pos': '(a, b, **c)' })
|
|
|
|
test(lambda a=1, b=2: None,
|
|
{'args': '(a=1, b=2)', 'self_arg': 'a',
|
|
'apply_kw': '(a=a, b=b)', 'apply_pos': '(a, b)' })
|
|
|
|
test(lambda a=1, b=2: None,
|
|
{'args': 'a=1, b=2', 'self_arg': 'a',
|
|
'apply_kw': 'a=a, b=b', 'apply_pos': 'a, b' },
|
|
grouped=False)
|
|
|
|
@fails_if(lambda: util.pypy, "object.__init__ is introspectable")
|
|
def test_init_grouped(self):
|
|
object_spec = {
|
|
'args': '(self)', 'self_arg': 'self',
|
|
'apply_pos': '(self)', 'apply_kw': '(self)'}
|
|
wrapper_spec = {
|
|
'args': '(self, *args, **kwargs)', 'self_arg': 'self',
|
|
'apply_pos': '(self, *args, **kwargs)',
|
|
'apply_kw': '(self, *args, **kwargs)'}
|
|
custom_spec = {
|
|
'args': '(slef, a=123)', 'self_arg': 'slef', # yes, slef
|
|
'apply_pos': '(slef, a)', 'apply_kw': '(slef, a=a)'}
|
|
|
|
self._test_init(None, object_spec, wrapper_spec, custom_spec)
|
|
self._test_init(True, object_spec, wrapper_spec, custom_spec)
|
|
|
|
@fails_if(lambda: util.pypy, "object.__init__ can be introspected")
|
|
def test_init_bare(self):
|
|
object_spec = {
|
|
'args': 'self', 'self_arg': 'self',
|
|
'apply_pos': 'self', 'apply_kw': 'self'}
|
|
wrapper_spec = {
|
|
'args': 'self, *args, **kwargs', 'self_arg': 'self',
|
|
'apply_pos': 'self, *args, **kwargs',
|
|
'apply_kw': 'self, *args, **kwargs'}
|
|
custom_spec = {
|
|
'args': 'slef, a=123', 'self_arg': 'slef', # yes, slef
|
|
'apply_pos': 'slef, a', 'apply_kw': 'slef, a=a'}
|
|
|
|
self._test_init(False, object_spec, wrapper_spec, custom_spec)
|
|
|
|
def _test_init(self, grouped, object_spec, wrapper_spec, custom_spec):
|
|
def test(fn, wanted):
|
|
if grouped is None:
|
|
parsed = util.format_argspec_init(fn)
|
|
else:
|
|
parsed = util.format_argspec_init(fn, grouped=grouped)
|
|
eq_(parsed, wanted)
|
|
|
|
class O(object): pass
|
|
|
|
test(O.__init__, object_spec)
|
|
|
|
class O(object):
|
|
def __init__(self):
|
|
pass
|
|
|
|
test(O.__init__, object_spec)
|
|
|
|
class O(object):
|
|
def __init__(slef, a=123):
|
|
pass
|
|
|
|
test(O.__init__, custom_spec)
|
|
|
|
class O(list): pass
|
|
|
|
test(O.__init__, wrapper_spec)
|
|
|
|
class O(list):
|
|
def __init__(self, *args, **kwargs):
|
|
pass
|
|
|
|
test(O.__init__, wrapper_spec)
|
|
|
|
class O(list):
|
|
def __init__(self):
|
|
pass
|
|
|
|
test(O.__init__, object_spec)
|
|
|
|
class O(list):
|
|
def __init__(slef, a=123):
|
|
pass
|
|
|
|
test(O.__init__, custom_spec)
|
|
|
|
|
|
class GenericReprTest(fixtures.TestBase):
|
|
def test_all_positional(self):
|
|
class Foo(object):
|
|
def __init__(self, a, b, c):
|
|
self.a = a
|
|
self.b = b
|
|
self.c = c
|
|
eq_(
|
|
util.generic_repr(Foo(1, 2, 3)),
|
|
"Foo(1, 2, 3)"
|
|
)
|
|
|
|
def test_positional_plus_kw(self):
|
|
class Foo(object):
|
|
def __init__(self, a, b, c=5, d=4):
|
|
self.a = a
|
|
self.b = b
|
|
self.c = c
|
|
self.d = d
|
|
eq_(
|
|
util.generic_repr(Foo(1, 2, 3, 6)),
|
|
"Foo(1, 2, c=3, d=6)"
|
|
)
|
|
|
|
def test_kw_defaults(self):
|
|
class Foo(object):
|
|
def __init__(self, a=1, b=2, c=3, d=4):
|
|
self.a = a
|
|
self.b = b
|
|
self.c = c
|
|
self.d = d
|
|
eq_(
|
|
util.generic_repr(Foo(1, 5, 3, 7)),
|
|
"Foo(b=5, d=7)"
|
|
)
|
|
|
|
def test_discard_vargs(self):
|
|
class Foo(object):
|
|
def __init__(self, a, b, *args):
|
|
self.a = a
|
|
self.b = b
|
|
self.c, self.d = args[0:2]
|
|
eq_(
|
|
util.generic_repr(Foo(1, 2, 3, 4)),
|
|
"Foo(1, 2)"
|
|
)
|
|
|
|
def test_discard_vargs_kwargs(self):
|
|
class Foo(object):
|
|
def __init__(self, a, b, *args, **kw):
|
|
self.a = a
|
|
self.b = b
|
|
self.c, self.d = args[0:2]
|
|
eq_(
|
|
util.generic_repr(Foo(1, 2, 3, 4, x=7, y=4)),
|
|
"Foo(1, 2)"
|
|
)
|
|
|
|
def test_significant_vargs(self):
|
|
class Foo(object):
|
|
def __init__(self, a, b, *args):
|
|
self.a = a
|
|
self.b = b
|
|
self.args = args
|
|
eq_(
|
|
util.generic_repr(Foo(1, 2, 3, 4)),
|
|
"Foo(1, 2, 3, 4)"
|
|
)
|
|
|
|
def test_no_args(self):
|
|
class Foo(object):
|
|
def __init__(self):
|
|
pass
|
|
eq_(
|
|
util.generic_repr(Foo()),
|
|
"Foo()"
|
|
)
|
|
|
|
def test_no_init(self):
|
|
class Foo(object):
|
|
pass
|
|
eq_(
|
|
util.generic_repr(Foo()),
|
|
"Foo()"
|
|
)
|
|
|
|
class AsInterfaceTest(fixtures.TestBase):
|
|
|
|
class Something(object):
|
|
def _ignoreme(self): pass
|
|
def foo(self): pass
|
|
def bar(self): pass
|
|
|
|
class Partial(object):
|
|
def bar(self): pass
|
|
|
|
class Object(object): pass
|
|
|
|
def test_instance(self):
|
|
obj = object()
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
cls=self.Something)
|
|
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
methods=('foo'))
|
|
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
cls=self.Something, required=('foo'))
|
|
|
|
obj = self.Something()
|
|
eq_(obj, util.as_interface(obj, cls=self.Something))
|
|
eq_(obj, util.as_interface(obj, methods=('foo',)))
|
|
eq_(
|
|
obj, util.as_interface(obj, cls=self.Something,
|
|
required=('outofband',)))
|
|
partial = self.Partial()
|
|
|
|
slotted = self.Object()
|
|
slotted.bar = lambda self: 123
|
|
|
|
for obj in partial, slotted:
|
|
eq_(obj, util.as_interface(obj, cls=self.Something))
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
methods=('foo'))
|
|
eq_(obj, util.as_interface(obj, methods=('bar',)))
|
|
eq_(obj, util.as_interface(obj, cls=self.Something,
|
|
required=('bar',)))
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
cls=self.Something, required=('foo',))
|
|
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
cls=self.Something, required=self.Something)
|
|
|
|
def test_dict(self):
|
|
obj = {}
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
cls=self.Something)
|
|
assert_raises(TypeError, util.as_interface, obj, methods='foo')
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
cls=self.Something, required='foo')
|
|
|
|
def assertAdapted(obj, *methods):
|
|
assert isinstance(obj, type)
|
|
found = set([m for m in dir(obj) if not m.startswith('_')])
|
|
for method in methods:
|
|
assert method in found
|
|
found.remove(method)
|
|
assert not found
|
|
|
|
fn = lambda self: 123
|
|
obj = {'foo': fn, 'bar': fn}
|
|
res = util.as_interface(obj, cls=self.Something)
|
|
assertAdapted(res, 'foo', 'bar')
|
|
res = util.as_interface(obj, cls=self.Something,
|
|
required=self.Something)
|
|
assertAdapted(res, 'foo', 'bar')
|
|
res = util.as_interface(obj, cls=self.Something, required=('foo'
|
|
, ))
|
|
assertAdapted(res, 'foo', 'bar')
|
|
res = util.as_interface(obj, methods=('foo', 'bar'))
|
|
assertAdapted(res, 'foo', 'bar')
|
|
res = util.as_interface(obj, methods=('foo', 'bar', 'baz'))
|
|
assertAdapted(res, 'foo', 'bar')
|
|
res = util.as_interface(obj, methods=('foo', 'bar'),
|
|
required=('foo', ))
|
|
assertAdapted(res, 'foo', 'bar')
|
|
assert_raises(TypeError, util.as_interface, obj, methods=('foo'
|
|
, ))
|
|
assert_raises(TypeError, util.as_interface, obj, methods=('foo'
|
|
, 'bar', 'baz'), required=('baz', ))
|
|
obj = {'foo': 123}
|
|
assert_raises(TypeError, util.as_interface, obj,
|
|
cls=self.Something)
|
|
|
|
|
|
class TestClassHierarchy(fixtures.TestBase):
|
|
def test_object(self):
|
|
eq_(set(util.class_hierarchy(object)), set((object,)))
|
|
|
|
def test_single(self):
|
|
class A(object):
|
|
pass
|
|
|
|
class B(object):
|
|
pass
|
|
|
|
eq_(set(util.class_hierarchy(A)), set((A, object)))
|
|
eq_(set(util.class_hierarchy(B)), set((B, object)))
|
|
|
|
class C(A, B):
|
|
pass
|
|
|
|
eq_(set(util.class_hierarchy(A)), set((A, B, C, object)))
|
|
eq_(set(util.class_hierarchy(B)), set((A, B, C, object)))
|
|
|
|
# Py2K
|
|
def test_oldstyle_mixin(self):
|
|
class A(object):
|
|
pass
|
|
|
|
class Mixin:
|
|
pass
|
|
|
|
class B(A, Mixin):
|
|
pass
|
|
|
|
eq_(set(util.class_hierarchy(B)), set((A, B, object)))
|
|
eq_(set(util.class_hierarchy(Mixin)), set())
|
|
eq_(set(util.class_hierarchy(A)), set((A, B, object)))
|
|
# end Py2K
|
|
|
|
|
|
class TestClassProperty(fixtures.TestBase):
|
|
|
|
def test_simple(self):
|
|
class A(object):
|
|
something = {'foo':1}
|
|
|
|
class B(A):
|
|
|
|
@classproperty
|
|
def something(cls):
|
|
d = dict(super(B,cls).something)
|
|
d.update({'bazz':2})
|
|
return d
|
|
|
|
eq_(B.something,{
|
|
'foo':1,
|
|
'bazz':2,
|
|
})
|