mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-10 10:50:37 -04:00
Mike Bayer
1cf80dc5b2
dictionary to use a duck typing approach, i.e.
checks for "keys", to discern between update({})
and update((a, b)). Previously, passing a
dictionary that had tuples as keys would be misinterpreted
as a sequence. [ticket:2275]
1370 lines
45 KiB
Python
1370 lines
45 KiB
Python
from test.lib.testing import eq_, assert_raises
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import copy
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import pickle
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from sqlalchemy import *
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from sqlalchemy.orm import *
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from sqlalchemy.orm.collections import collection, attribute_mapped_collection
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from sqlalchemy.ext.associationproxy import *
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from sqlalchemy.ext.associationproxy import _AssociationList
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from test.lib import *
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from test.lib.testing import assert_raises_message
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from test.lib.util import gc_collect
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from sqlalchemy.sql import not_
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from test.lib import fixtures
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class DictCollection(dict):
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@collection.appender
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def append(self, obj):
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self[obj.foo] = obj
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@collection.remover
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def remove(self, obj):
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del self[obj.foo]
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class SetCollection(set):
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pass
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class ListCollection(list):
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pass
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class ObjectCollection(object):
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def __init__(self):
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self.values = list()
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@collection.appender
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def append(self, obj):
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self.values.append(obj)
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@collection.remover
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def remove(self, obj):
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self.values.remove(obj)
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def __iter__(self):
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return iter(self.values)
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class _CollectionOperations(fixtures.TestBase):
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def setup(self):
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collection_class = self.collection_class
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metadata = MetaData(testing.db)
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parents_table = Table('Parent', metadata,
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Column('id', Integer, primary_key=True,
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test_needs_autoincrement=True),
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Column('name', String(128)))
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children_table = Table('Children', metadata,
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Column('id', Integer, primary_key=True,
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test_needs_autoincrement=True),
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Column('parent_id', Integer,
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ForeignKey('Parent.id')),
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Column('foo', String(128)),
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Column('name', String(128)))
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class Parent(object):
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children = association_proxy('_children', 'name')
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def __init__(self, name):
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self.name = name
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class Child(object):
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if collection_class and issubclass(collection_class, dict):
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def __init__(self, foo, name):
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self.foo = foo
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self.name = name
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else:
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def __init__(self, name):
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self.name = name
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mapper(Parent, parents_table, properties={
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'_children': relationship(Child, lazy='joined',
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collection_class=collection_class)})
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mapper(Child, children_table)
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metadata.create_all()
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self.metadata = metadata
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self.session = create_session()
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self.Parent, self.Child = Parent, Child
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def teardown(self):
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self.metadata.drop_all()
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def roundtrip(self, obj):
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if obj not in self.session:
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self.session.add(obj)
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self.session.flush()
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id, type_ = obj.id, type(obj)
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self.session.expunge_all()
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return self.session.query(type_).get(id)
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def _test_sequence_ops(self):
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Parent, Child = self.Parent, self.Child
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p1 = Parent('P1')
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self.assert_(not p1._children)
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self.assert_(not p1.children)
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ch = Child('regular')
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p1._children.append(ch)
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self.assert_(ch in p1._children)
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self.assert_(len(p1._children) == 1)
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self.assert_(p1.children)
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self.assert_(len(p1.children) == 1)
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self.assert_(ch not in p1.children)
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self.assert_('regular' in p1.children)
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p1.children.append('proxied')
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self.assert_('proxied' in p1.children)
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self.assert_('proxied' not in p1._children)
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self.assert_(len(p1.children) == 2)
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self.assert_(len(p1._children) == 2)
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self.assert_(p1._children[0].name == 'regular')
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self.assert_(p1._children[1].name == 'proxied')
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del p1._children[1]
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self.assert_(len(p1._children) == 1)
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self.assert_(len(p1.children) == 1)
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self.assert_(p1._children[0] == ch)
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del p1.children[0]
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self.assert_(len(p1._children) == 0)
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self.assert_(len(p1.children) == 0)
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p1.children = ['a','b','c']
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self.assert_(len(p1._children) == 3)
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self.assert_(len(p1.children) == 3)
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del ch
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p1 = self.roundtrip(p1)
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self.assert_(len(p1._children) == 3)
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self.assert_(len(p1.children) == 3)
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popped = p1.children.pop()
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self.assert_(len(p1.children) == 2)
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self.assert_(popped not in p1.children)
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p1 = self.roundtrip(p1)
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self.assert_(len(p1.children) == 2)
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self.assert_(popped not in p1.children)
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p1.children[1] = 'changed-in-place'
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self.assert_(p1.children[1] == 'changed-in-place')
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inplace_id = p1._children[1].id
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p1 = self.roundtrip(p1)
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self.assert_(p1.children[1] == 'changed-in-place')
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assert p1._children[1].id == inplace_id
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p1.children.append('changed-in-place')
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self.assert_(p1.children.count('changed-in-place') == 2)
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p1.children.remove('changed-in-place')
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self.assert_(p1.children.count('changed-in-place') == 1)
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p1 = self.roundtrip(p1)
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self.assert_(p1.children.count('changed-in-place') == 1)
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p1._children = []
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self.assert_(len(p1.children) == 0)
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after = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']
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p1.children = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']
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self.assert_(len(p1.children) == 10)
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self.assert_([c.name for c in p1._children] == after)
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p1.children[2:6] = ['x'] * 4
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after = ['a', 'b', 'x', 'x', 'x', 'x', 'g', 'h', 'i', 'j']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children[2:6] = ['y']
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after = ['a', 'b', 'y', 'g', 'h', 'i', 'j']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children[2:3] = ['z'] * 4
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after = ['a', 'b', 'z', 'z', 'z', 'z', 'g', 'h', 'i', 'j']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children[2::2] = ['O'] * 4
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after = ['a', 'b', 'O', 'z', 'O', 'z', 'O', 'h', 'O', 'j']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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assert_raises(TypeError, set, [p1.children])
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p1.children *= 0
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after = []
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children += ['a', 'b']
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after = ['a', 'b']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children += ['c']
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after = ['a', 'b', 'c']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children *= 1
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after = ['a', 'b', 'c']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children *= 2
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after = ['a', 'b', 'c', 'a', 'b', 'c']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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p1.children = ['a']
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after = ['a']
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self.assert_(p1.children == after)
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self.assert_([c.name for c in p1._children] == after)
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self.assert_((p1.children * 2) == ['a', 'a'])
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self.assert_((2 * p1.children) == ['a', 'a'])
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self.assert_((p1.children * 0) == [])
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self.assert_((0 * p1.children) == [])
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self.assert_((p1.children + ['b']) == ['a', 'b'])
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self.assert_((['b'] + p1.children) == ['b', 'a'])
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try:
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p1.children + 123
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assert False
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except TypeError:
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assert True
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class DefaultTest(_CollectionOperations):
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def __init__(self, *args, **kw):
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super(DefaultTest, self).__init__(*args, **kw)
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self.collection_class = None
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def test_sequence_ops(self):
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self._test_sequence_ops()
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class ListTest(_CollectionOperations):
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def __init__(self, *args, **kw):
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super(ListTest, self).__init__(*args, **kw)
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self.collection_class = list
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def test_sequence_ops(self):
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self._test_sequence_ops()
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class CustomListTest(ListTest):
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def __init__(self, *args, **kw):
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super(CustomListTest, self).__init__(*args, **kw)
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self.collection_class = list
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# No-can-do until ticket #213
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class DictTest(_CollectionOperations):
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pass
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class CustomDictTest(DictTest):
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def __init__(self, *args, **kw):
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super(DictTest, self).__init__(*args, **kw)
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self.collection_class = DictCollection
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def test_mapping_ops(self):
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Parent, Child = self.Parent, self.Child
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p1 = Parent('P1')
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self.assert_(not p1._children)
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self.assert_(not p1.children)
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ch = Child('a', 'regular')
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p1._children.append(ch)
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self.assert_(ch in p1._children.values())
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self.assert_(len(p1._children) == 1)
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self.assert_(p1.children)
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self.assert_(len(p1.children) == 1)
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self.assert_(ch not in p1.children)
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self.assert_('a' in p1.children)
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self.assert_(p1.children['a'] == 'regular')
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self.assert_(p1._children['a'] == ch)
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p1.children['b'] = 'proxied'
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self.assert_('proxied' in p1.children.values())
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self.assert_('b' in p1.children)
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self.assert_('proxied' not in p1._children)
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self.assert_(len(p1.children) == 2)
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self.assert_(len(p1._children) == 2)
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self.assert_(p1._children['a'].name == 'regular')
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self.assert_(p1._children['b'].name == 'proxied')
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del p1._children['b']
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self.assert_(len(p1._children) == 1)
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self.assert_(len(p1.children) == 1)
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self.assert_(p1._children['a'] == ch)
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del p1.children['a']
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self.assert_(len(p1._children) == 0)
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self.assert_(len(p1.children) == 0)
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p1.children = {'d': 'v d', 'e': 'v e', 'f': 'v f'}
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self.assert_(len(p1._children) == 3)
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self.assert_(len(p1.children) == 3)
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self.assert_(set(p1.children) == set(['d','e','f']))
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del ch
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p1 = self.roundtrip(p1)
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self.assert_(len(p1._children) == 3)
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self.assert_(len(p1.children) == 3)
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p1.children['e'] = 'changed-in-place'
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self.assert_(p1.children['e'] == 'changed-in-place')
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inplace_id = p1._children['e'].id
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p1 = self.roundtrip(p1)
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self.assert_(p1.children['e'] == 'changed-in-place')
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self.assert_(p1._children['e'].id == inplace_id)
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p1._children = {}
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self.assert_(len(p1.children) == 0)
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try:
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p1._children = []
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self.assert_(False)
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except TypeError:
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self.assert_(True)
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try:
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p1._children = None
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self.assert_(False)
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except TypeError:
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self.assert_(True)
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assert_raises(TypeError, set, [p1.children])
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class SetTest(_CollectionOperations):
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def __init__(self, *args, **kw):
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super(SetTest, self).__init__(*args, **kw)
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self.collection_class = set
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def test_set_operations(self):
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Parent, Child = self.Parent, self.Child
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p1 = Parent('P1')
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self.assert_(not p1._children)
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self.assert_(not p1.children)
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ch1 = Child('regular')
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p1._children.add(ch1)
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self.assert_(ch1 in p1._children)
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self.assert_(len(p1._children) == 1)
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self.assert_(p1.children)
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self.assert_(len(p1.children) == 1)
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self.assert_(ch1 not in p1.children)
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self.assert_('regular' in p1.children)
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p1.children.add('proxied')
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self.assert_('proxied' in p1.children)
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self.assert_('proxied' not in p1._children)
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self.assert_(len(p1.children) == 2)
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self.assert_(len(p1._children) == 2)
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self.assert_(set([o.name for o in p1._children]) ==
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set(['regular', 'proxied']))
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ch2 = None
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for o in p1._children:
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if o.name == 'proxied':
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ch2 = o
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break
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p1._children.remove(ch2)
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self.assert_(len(p1._children) == 1)
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self.assert_(len(p1.children) == 1)
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self.assert_(p1._children == set([ch1]))
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p1.children.remove('regular')
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self.assert_(len(p1._children) == 0)
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self.assert_(len(p1.children) == 0)
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p1.children = ['a','b','c']
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self.assert_(len(p1._children) == 3)
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self.assert_(len(p1.children) == 3)
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del ch1
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p1 = self.roundtrip(p1)
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self.assert_(len(p1._children) == 3)
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self.assert_(len(p1.children) == 3)
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self.assert_('a' in p1.children)
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self.assert_('b' in p1.children)
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self.assert_('d' not in p1.children)
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self.assert_(p1.children == set(['a','b','c']))
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try:
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p1.children.remove('d')
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self.fail()
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except KeyError:
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pass
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self.assert_(len(p1.children) == 3)
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p1.children.discard('d')
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self.assert_(len(p1.children) == 3)
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p1 = self.roundtrip(p1)
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self.assert_(len(p1.children) == 3)
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popped = p1.children.pop()
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self.assert_(len(p1.children) == 2)
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self.assert_(popped not in p1.children)
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p1 = self.roundtrip(p1)
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self.assert_(len(p1.children) == 2)
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self.assert_(popped not in p1.children)
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p1.children = ['a','b','c']
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p1 = self.roundtrip(p1)
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self.assert_(p1.children == set(['a','b','c']))
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p1.children.discard('b')
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p1 = self.roundtrip(p1)
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self.assert_(p1.children == set(['a', 'c']))
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p1.children.remove('a')
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p1 = self.roundtrip(p1)
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self.assert_(p1.children == set(['c']))
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p1._children = set()
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self.assert_(len(p1.children) == 0)
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try:
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p1._children = []
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self.assert_(False)
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except TypeError:
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self.assert_(True)
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|
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try:
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p1._children = None
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self.assert_(False)
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except TypeError:
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self.assert_(True)
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assert_raises(TypeError, set, [p1.children])
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|
|
|
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def test_set_comparisons(self):
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Parent, Child = self.Parent, self.Child
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p1 = Parent('P1')
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p1.children = ['a','b','c']
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control = set(['a','b','c'])
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for other in (set(['a','b','c']), set(['a','b','c','d']),
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set(['a']), set(['a','b']),
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set(['c','d']), set(['e', 'f', 'g']),
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set()):
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eq_(p1.children.union(other),
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control.union(other))
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eq_(p1.children.difference(other),
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control.difference(other))
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eq_((p1.children - other),
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(control - other))
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eq_(p1.children.intersection(other),
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control.intersection(other))
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eq_(p1.children.symmetric_difference(other),
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control.symmetric_difference(other))
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eq_(p1.children.issubset(other),
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control.issubset(other))
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eq_(p1.children.issuperset(other),
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control.issuperset(other))
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self.assert_((p1.children == other) == (control == other))
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self.assert_((p1.children != other) == (control != other))
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self.assert_((p1.children < other) == (control < other))
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self.assert_((p1.children <= other) == (control <= other))
|
|
self.assert_((p1.children > other) == (control > other))
|
|
self.assert_((p1.children >= other) == (control >= other))
|
|
|
|
def test_set_mutation(self):
|
|
Parent, Child = self.Parent, self.Child
|
|
|
|
# mutations
|
|
for op in ('update', 'intersection_update',
|
|
'difference_update', 'symmetric_difference_update'):
|
|
for base in (['a', 'b', 'c'], []):
|
|
for other in (set(['a','b','c']), set(['a','b','c','d']),
|
|
set(['a']), set(['a','b']),
|
|
set(['c','d']), set(['e', 'f', 'g']),
|
|
set()):
|
|
p = Parent('p')
|
|
p.children = base[:]
|
|
control = set(base[:])
|
|
|
|
getattr(p.children, op)(other)
|
|
getattr(control, op)(other)
|
|
try:
|
|
self.assert_(p.children == control)
|
|
except:
|
|
print 'Test %s.%s(%s):' % (set(base), op, other)
|
|
print 'want', repr(control)
|
|
print 'got', repr(p.children)
|
|
raise
|
|
|
|
p = self.roundtrip(p)
|
|
|
|
try:
|
|
self.assert_(p.children == control)
|
|
except:
|
|
print 'Test %s.%s(%s):' % (base, op, other)
|
|
print 'want', repr(control)
|
|
print 'got', repr(p.children)
|
|
raise
|
|
|
|
# in-place mutations
|
|
for op in ('|=', '-=', '&=', '^='):
|
|
for base in (['a', 'b', 'c'], []):
|
|
for other in (set(['a','b','c']), set(['a','b','c','d']),
|
|
set(['a']), set(['a','b']),
|
|
set(['c','d']), set(['e', 'f', 'g']),
|
|
frozenset(['e', 'f', 'g']),
|
|
set()):
|
|
p = Parent('p')
|
|
p.children = base[:]
|
|
control = set(base[:])
|
|
|
|
exec "p.children %s other" % op
|
|
exec "control %s other" % op
|
|
|
|
try:
|
|
self.assert_(p.children == control)
|
|
except:
|
|
print 'Test %s %s %s:' % (set(base), op, other)
|
|
print 'want', repr(control)
|
|
print 'got', repr(p.children)
|
|
raise
|
|
|
|
p = self.roundtrip(p)
|
|
|
|
try:
|
|
self.assert_(p.children == control)
|
|
except:
|
|
print 'Test %s %s %s:' % (base, op, other)
|
|
print 'want', repr(control)
|
|
print 'got', repr(p.children)
|
|
raise
|
|
|
|
|
|
class CustomSetTest(SetTest):
|
|
def __init__(self, *args, **kw):
|
|
super(CustomSetTest, self).__init__(*args, **kw)
|
|
self.collection_class = SetCollection
|
|
|
|
class CustomObjectTest(_CollectionOperations):
|
|
def __init__(self, *args, **kw):
|
|
super(CustomObjectTest, self).__init__(*args, **kw)
|
|
self.collection_class = ObjectCollection
|
|
|
|
def test_basic(self):
|
|
Parent, Child = self.Parent, self.Child
|
|
|
|
p = Parent('p1')
|
|
self.assert_(len(list(p.children)) == 0)
|
|
|
|
p.children.append('child')
|
|
self.assert_(len(list(p.children)) == 1)
|
|
|
|
p = self.roundtrip(p)
|
|
self.assert_(len(list(p.children)) == 1)
|
|
|
|
# We didn't provide an alternate _AssociationList implementation
|
|
# for our ObjectCollection, so indexing will fail.
|
|
|
|
try:
|
|
v = p.children[1]
|
|
self.fail()
|
|
except TypeError:
|
|
pass
|
|
|
|
class ProxyFactoryTest(ListTest):
|
|
def setup(self):
|
|
metadata = MetaData(testing.db)
|
|
|
|
parents_table = Table('Parent', metadata,
|
|
Column('id', Integer, primary_key=True,
|
|
test_needs_autoincrement=True),
|
|
Column('name', String(128)))
|
|
children_table = Table('Children', metadata,
|
|
Column('id', Integer, primary_key=True,
|
|
test_needs_autoincrement=True),
|
|
Column('parent_id', Integer,
|
|
ForeignKey('Parent.id')),
|
|
Column('foo', String(128)),
|
|
Column('name', String(128)))
|
|
|
|
class CustomProxy(_AssociationList):
|
|
def __init__(
|
|
self,
|
|
lazy_collection,
|
|
creator,
|
|
value_attr,
|
|
parent,
|
|
):
|
|
getter, setter = parent._default_getset(lazy_collection)
|
|
_AssociationList.__init__(
|
|
self,
|
|
lazy_collection,
|
|
creator,
|
|
getter,
|
|
setter,
|
|
parent,
|
|
)
|
|
|
|
class Parent(object):
|
|
children = association_proxy('_children', 'name',
|
|
proxy_factory=CustomProxy,
|
|
proxy_bulk_set=CustomProxy.extend
|
|
)
|
|
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
class Child(object):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
mapper(Parent, parents_table, properties={
|
|
'_children': relationship(Child, lazy='joined',
|
|
collection_class=list)})
|
|
mapper(Child, children_table)
|
|
|
|
metadata.create_all()
|
|
|
|
self.metadata = metadata
|
|
self.session = create_session()
|
|
self.Parent, self.Child = Parent, Child
|
|
|
|
def test_sequence_ops(self):
|
|
self._test_sequence_ops()
|
|
|
|
|
|
class ScalarTest(fixtures.TestBase):
|
|
def test_scalar_proxy(self):
|
|
metadata = MetaData(testing.db)
|
|
|
|
parents_table = Table('Parent', metadata,
|
|
Column('id', Integer, primary_key=True,
|
|
test_needs_autoincrement=True),
|
|
Column('name', String(128)))
|
|
children_table = Table('Children', metadata,
|
|
Column('id', Integer, primary_key=True,
|
|
test_needs_autoincrement=True),
|
|
Column('parent_id', Integer,
|
|
ForeignKey('Parent.id')),
|
|
Column('foo', String(128)),
|
|
Column('bar', String(128)),
|
|
Column('baz', String(128)))
|
|
|
|
class Parent(object):
|
|
foo = association_proxy('child', 'foo')
|
|
bar = association_proxy('child', 'bar',
|
|
creator=lambda v: Child(bar=v))
|
|
baz = association_proxy('child', 'baz',
|
|
creator=lambda v: Child(baz=v))
|
|
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
class Child(object):
|
|
def __init__(self, **kw):
|
|
for attr in kw:
|
|
setattr(self, attr, kw[attr])
|
|
|
|
mapper(Parent, parents_table, properties={
|
|
'child': relationship(Child, lazy='joined',
|
|
backref='parent', uselist=False)})
|
|
mapper(Child, children_table)
|
|
|
|
metadata.create_all()
|
|
session = create_session()
|
|
|
|
def roundtrip(obj):
|
|
if obj not in session:
|
|
session.add(obj)
|
|
session.flush()
|
|
id, type_ = obj.id, type(obj)
|
|
session.expunge_all()
|
|
return session.query(type_).get(id)
|
|
|
|
p = Parent('p')
|
|
|
|
# No child
|
|
try:
|
|
v = p.foo
|
|
self.fail()
|
|
except:
|
|
pass
|
|
|
|
p.child = Child(foo='a', bar='b', baz='c')
|
|
|
|
self.assert_(p.foo == 'a')
|
|
self.assert_(p.bar == 'b')
|
|
self.assert_(p.baz == 'c')
|
|
|
|
p.bar = 'x'
|
|
self.assert_(p.foo == 'a')
|
|
self.assert_(p.bar == 'x')
|
|
self.assert_(p.baz == 'c')
|
|
|
|
p = roundtrip(p)
|
|
|
|
self.assert_(p.foo == 'a')
|
|
self.assert_(p.bar == 'x')
|
|
self.assert_(p.baz == 'c')
|
|
|
|
p.child = None
|
|
|
|
# No child again
|
|
try:
|
|
v = p.foo
|
|
self.fail()
|
|
except:
|
|
pass
|
|
|
|
# Bogus creator for this scalar type
|
|
try:
|
|
p.foo = 'zzz'
|
|
self.fail()
|
|
except TypeError:
|
|
pass
|
|
|
|
p.bar = 'yyy'
|
|
|
|
self.assert_(p.foo is None)
|
|
self.assert_(p.bar == 'yyy')
|
|
self.assert_(p.baz is None)
|
|
|
|
del p.child
|
|
|
|
p = roundtrip(p)
|
|
|
|
self.assert_(p.child is None)
|
|
|
|
p.baz = 'xxx'
|
|
|
|
self.assert_(p.foo is None)
|
|
self.assert_(p.bar is None)
|
|
self.assert_(p.baz == 'xxx')
|
|
|
|
p = roundtrip(p)
|
|
|
|
self.assert_(p.foo is None)
|
|
self.assert_(p.bar is None)
|
|
self.assert_(p.baz == 'xxx')
|
|
|
|
# Ensure an immediate __set__ works.
|
|
p2 = Parent('p2')
|
|
p2.bar = 'quux'
|
|
|
|
|
|
class LazyLoadTest(fixtures.TestBase):
|
|
def setup(self):
|
|
metadata = MetaData(testing.db)
|
|
|
|
parents_table = Table('Parent', metadata,
|
|
Column('id', Integer, primary_key=True,
|
|
test_needs_autoincrement=True),
|
|
Column('name', String(128)))
|
|
children_table = Table('Children', metadata,
|
|
Column('id', Integer, primary_key=True,
|
|
test_needs_autoincrement=True),
|
|
Column('parent_id', Integer,
|
|
ForeignKey('Parent.id')),
|
|
Column('foo', String(128)),
|
|
Column('name', String(128)))
|
|
|
|
class Parent(object):
|
|
children = association_proxy('_children', 'name')
|
|
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
class Child(object):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
|
|
mapper(Child, children_table)
|
|
metadata.create_all()
|
|
|
|
self.metadata = metadata
|
|
self.session = create_session()
|
|
self.Parent, self.Child = Parent, Child
|
|
self.table = parents_table
|
|
|
|
def teardown(self):
|
|
self.metadata.drop_all()
|
|
|
|
def roundtrip(self, obj):
|
|
self.session.add(obj)
|
|
self.session.flush()
|
|
id, type_ = obj.id, type(obj)
|
|
self.session.expunge_all()
|
|
return self.session.query(type_).get(id)
|
|
|
|
def test_lazy_list(self):
|
|
Parent, Child = self.Parent, self.Child
|
|
|
|
mapper(Parent, self.table, properties={
|
|
'_children': relationship(Child, lazy='select',
|
|
collection_class=list)})
|
|
|
|
p = Parent('p')
|
|
p.children = ['a','b','c']
|
|
|
|
p = self.roundtrip(p)
|
|
|
|
# Is there a better way to ensure that the association_proxy
|
|
# didn't convert a lazy load to an eager load? This does work though.
|
|
self.assert_('_children' not in p.__dict__)
|
|
self.assert_(len(p._children) == 3)
|
|
self.assert_('_children' in p.__dict__)
|
|
|
|
def test_eager_list(self):
|
|
Parent, Child = self.Parent, self.Child
|
|
|
|
mapper(Parent, self.table, properties={
|
|
'_children': relationship(Child, lazy='joined',
|
|
collection_class=list)})
|
|
|
|
p = Parent('p')
|
|
p.children = ['a','b','c']
|
|
|
|
p = self.roundtrip(p)
|
|
|
|
self.assert_('_children' in p.__dict__)
|
|
self.assert_(len(p._children) == 3)
|
|
|
|
def test_lazy_scalar(self):
|
|
Parent, Child = self.Parent, self.Child
|
|
|
|
mapper(Parent, self.table, properties={
|
|
'_children': relationship(Child, lazy='select', uselist=False)})
|
|
|
|
|
|
p = Parent('p')
|
|
p.children = 'value'
|
|
|
|
p = self.roundtrip(p)
|
|
|
|
self.assert_('_children' not in p.__dict__)
|
|
self.assert_(p._children is not None)
|
|
|
|
def test_eager_scalar(self):
|
|
Parent, Child = self.Parent, self.Child
|
|
|
|
mapper(Parent, self.table, properties={
|
|
'_children': relationship(Child, lazy='joined', uselist=False)})
|
|
|
|
|
|
p = Parent('p')
|
|
p.children = 'value'
|
|
|
|
p = self.roundtrip(p)
|
|
|
|
self.assert_('_children' in p.__dict__)
|
|
self.assert_(p._children is not None)
|
|
|
|
|
|
class Parent(object):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
class Child(object):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
class KVChild(object):
|
|
def __init__(self, name, value):
|
|
self.name = name
|
|
self.value = value
|
|
|
|
class ReconstitutionTest(fixtures.TestBase):
|
|
|
|
def setup(self):
|
|
metadata = MetaData(testing.db)
|
|
parents = Table('parents', metadata, Column('id', Integer,
|
|
primary_key=True,
|
|
test_needs_autoincrement=True), Column('name',
|
|
String(30)))
|
|
children = Table('children', metadata, Column('id', Integer,
|
|
primary_key=True,
|
|
test_needs_autoincrement=True),
|
|
Column('parent_id', Integer,
|
|
ForeignKey('parents.id')), Column('name',
|
|
String(30)))
|
|
metadata.create_all()
|
|
parents.insert().execute(name='p1')
|
|
self.metadata = metadata
|
|
self.parents = parents
|
|
self.children = children
|
|
Parent.kids = association_proxy('children', 'name')
|
|
|
|
def teardown(self):
|
|
self.metadata.drop_all()
|
|
clear_mappers()
|
|
|
|
def test_weak_identity_map(self):
|
|
mapper(Parent, self.parents,
|
|
properties=dict(children=relationship(Child)))
|
|
mapper(Child, self.children)
|
|
session = create_session(weak_identity_map=True)
|
|
|
|
def add_child(parent_name, child_name):
|
|
parent = \
|
|
session.query(Parent).filter_by(name=parent_name).one()
|
|
parent.kids.append(child_name)
|
|
|
|
add_child('p1', 'c1')
|
|
gc_collect()
|
|
add_child('p1', 'c2')
|
|
session.flush()
|
|
p = session.query(Parent).filter_by(name='p1').one()
|
|
assert set(p.kids) == set(['c1', 'c2']), p.kids
|
|
|
|
def test_copy(self):
|
|
mapper(Parent, self.parents,
|
|
properties=dict(children=relationship(Child)))
|
|
mapper(Child, self.children)
|
|
p = Parent('p1')
|
|
p.kids.extend(['c1', 'c2'])
|
|
p_copy = copy.copy(p)
|
|
del p
|
|
gc_collect()
|
|
assert set(p_copy.kids) == set(['c1', 'c2']), p.kids
|
|
|
|
def test_pickle_list(self):
|
|
mapper(Parent, self.parents,
|
|
properties=dict(children=relationship(Child)))
|
|
mapper(Child, self.children)
|
|
p = Parent('p1')
|
|
p.kids.extend(['c1', 'c2'])
|
|
r1 = pickle.loads(pickle.dumps(p))
|
|
assert r1.kids == ['c1', 'c2']
|
|
r2 = pickle.loads(pickle.dumps(p.kids))
|
|
assert r2 == ['c1', 'c2']
|
|
|
|
def test_pickle_set(self):
|
|
mapper(Parent, self.parents,
|
|
properties=dict(children=relationship(Child,
|
|
collection_class=set)))
|
|
mapper(Child, self.children)
|
|
p = Parent('p1')
|
|
p.kids.update(['c1', 'c2'])
|
|
r1 = pickle.loads(pickle.dumps(p))
|
|
assert r1.kids == set(['c1', 'c2'])
|
|
r2 = pickle.loads(pickle.dumps(p.kids))
|
|
assert r2 == set(['c1', 'c2'])
|
|
|
|
def test_pickle_dict(self):
|
|
mapper(Parent, self.parents,
|
|
properties=dict(children=relationship(KVChild,
|
|
collection_class=
|
|
collections.mapped_collection(PickleKeyFunc('name')))))
|
|
mapper(KVChild, self.children)
|
|
p = Parent('p1')
|
|
p.kids.update({'c1': 'v1', 'c2': 'v2'})
|
|
assert p.kids == {'c1': 'c1', 'c2': 'c2'}
|
|
r1 = pickle.loads(pickle.dumps(p))
|
|
assert r1.kids == {'c1': 'c1', 'c2': 'c2'}
|
|
r2 = pickle.loads(pickle.dumps(p.kids))
|
|
assert r2 == {'c1': 'c1', 'c2': 'c2'}
|
|
|
|
class PickleKeyFunc(object):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
def __call__(self, obj):
|
|
return getattr(obj, self.name)
|
|
|
|
class ComparatorTest(fixtures.MappedTest, AssertsCompiledSQL):
|
|
__dialect__ = 'default'
|
|
|
|
run_inserts = 'once'
|
|
run_deletes = None
|
|
run_setup_mappers = 'once'
|
|
run_setup_classes = 'once'
|
|
|
|
@classmethod
|
|
def define_tables(cls, metadata):
|
|
Table('userkeywords', metadata,
|
|
Column('keyword_id', Integer,ForeignKey('keywords.id'), primary_key=True),
|
|
Column('user_id', Integer, ForeignKey('users.id'))
|
|
)
|
|
Table('users', metadata,
|
|
Column('id', Integer,
|
|
primary_key=True, test_needs_autoincrement=True),
|
|
Column('name', String(64)),
|
|
Column('singular_id', Integer, ForeignKey('singular.id'))
|
|
)
|
|
Table('keywords', metadata,
|
|
Column('id', Integer,
|
|
primary_key=True, test_needs_autoincrement=True),
|
|
Column('keyword', String(64)),
|
|
Column('singular_id', Integer, ForeignKey('singular.id'))
|
|
)
|
|
Table('singular', metadata,
|
|
Column('id', Integer,
|
|
primary_key=True, test_needs_autoincrement=True),
|
|
)
|
|
|
|
@classmethod
|
|
def setup_classes(cls):
|
|
class User(cls.Comparable):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
# o2m -> m2o
|
|
# uselist -> nonuselist
|
|
keywords = association_proxy('user_keywords', 'keyword',
|
|
creator=lambda k: UserKeyword(keyword=k))
|
|
|
|
# m2o -> o2m
|
|
# nonuselist -> uselist
|
|
singular_keywords = association_proxy('singular', 'keywords')
|
|
|
|
class Keyword(cls.Comparable):
|
|
def __init__(self, keyword):
|
|
self.keyword = keyword
|
|
|
|
# o2o -> m2o
|
|
# nonuselist -> nonuselist
|
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user = association_proxy('user_keyword', 'user')
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class UserKeyword(cls.Comparable):
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def __init__(self, user=None, keyword=None):
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self.user = user
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self.keyword = keyword
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class Singular(cls.Comparable):
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def __init__(self, value=None):
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self.value = value
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@classmethod
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def setup_mappers(cls):
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users, Keyword, UserKeyword, singular, \
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userkeywords, User, keywords, Singular = (cls.tables.users,
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cls.classes.Keyword,
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cls.classes.UserKeyword,
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cls.tables.singular,
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cls.tables.userkeywords,
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cls.classes.User,
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cls.tables.keywords,
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cls.classes.Singular)
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mapper(User, users, properties={
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'singular':relationship(Singular)
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})
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mapper(Keyword, keywords, properties={
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'user_keyword':relationship(UserKeyword, uselist=False)
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})
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mapper(UserKeyword, userkeywords, properties={
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'user' : relationship(User, backref='user_keywords'),
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'keyword' : relationship(Keyword)
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})
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mapper(Singular, singular, properties={
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'keywords': relationship(Keyword)
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})
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@classmethod
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def insert_data(cls):
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UserKeyword, User, Keyword, Singular = (cls.classes.UserKeyword,
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cls.classes.User,
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cls.classes.Keyword,
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cls.classes.Singular)
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session = sessionmaker()()
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words = (
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'quick', 'brown',
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'fox', 'jumped', 'over',
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'the', 'lazy',
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)
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for ii in range(4):
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user = User('user%d' % ii)
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user.singular = Singular()
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session.add(user)
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for jj in words[ii:ii + 3]:
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k = Keyword(jj)
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user.keywords.append(k)
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user.singular.keywords.append(k)
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orphan = Keyword('orphan')
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orphan.user_keyword = UserKeyword(keyword=orphan, user=None)
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session.add(orphan)
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session.commit()
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cls.u = user
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cls.kw = user.keywords[0]
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cls.session = session
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def _equivalent(self, q_proxy, q_direct):
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eq_(q_proxy.all(), q_direct.all())
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def test_filter_any_kwarg_ul_nul(self):
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UserKeyword, User = self.classes.UserKeyword, self.classes.User
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self._equivalent(self.session.query(User).
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filter(User.keywords.any(keyword='jumped'
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)),
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self.session.query(User).filter(
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User.user_keywords.any(
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UserKeyword.keyword.has(keyword='jumped'
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))))
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def test_filter_has_kwarg_nul_nul(self):
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UserKeyword, Keyword = self.classes.UserKeyword, self.classes.Keyword
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self._equivalent(self.session.query(Keyword).
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filter(Keyword.user.has(name='user2'
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)),
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self.session.query(Keyword).
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filter(Keyword.user_keyword.has(
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UserKeyword.user.has(name='user2'
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))))
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def test_filter_has_kwarg_nul_ul(self):
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User, Singular = self.classes.User, self.classes.Singular
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self._equivalent(
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self.session.query(User).\
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filter(User.singular_keywords.any(keyword='jumped')),
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self.session.query(User).\
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filter(
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User.singular.has(
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Singular.keywords.any(keyword='jumped')
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)
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)
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)
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def test_filter_any_criterion_ul_nul(self):
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UserKeyword, User, Keyword = (self.classes.UserKeyword,
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self.classes.User,
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self.classes.Keyword)
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self._equivalent(self.session.query(User).
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filter(User.keywords.any(Keyword.keyword
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== 'jumped')),
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self.session.query(User).
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filter(User.user_keywords.any(
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UserKeyword.keyword.has(Keyword.keyword
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== 'jumped'))))
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def test_filter_has_criterion_nul_nul(self):
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UserKeyword, User, Keyword = (self.classes.UserKeyword,
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self.classes.User,
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self.classes.Keyword)
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self._equivalent(self.session.query(Keyword).
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filter(Keyword.user.has(User.name
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== 'user2')),
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self.session.query(Keyword).
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filter(Keyword.user_keyword.has(
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UserKeyword.user.has(User.name
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== 'user2'))))
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def test_filter_any_criterion_nul_ul(self):
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User, Keyword, Singular = (self.classes.User,
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self.classes.Keyword,
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self.classes.Singular)
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self._equivalent(
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self.session.query(User).\
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filter(User.singular_keywords.any(Keyword.keyword=='jumped')),
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self.session.query(User).\
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filter(
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User.singular.has(
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Singular.keywords.any(Keyword.keyword=='jumped')
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)
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)
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)
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def test_filter_contains_ul_nul(self):
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User = self.classes.User
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self._equivalent(self.session.query(User).
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filter(User.keywords.contains(self.kw)),
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self.session.query(User).
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filter(User.user_keywords.any(keyword=self.kw)))
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def test_filter_contains_nul_ul(self):
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User, Singular = self.classes.User, self.classes.Singular
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self._equivalent(
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self.session.query(User).filter(
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User.singular_keywords.contains(self.kw)
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),
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self.session.query(User).filter(
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User.singular.has(
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Singular.keywords.contains(self.kw)
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)
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),
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)
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def test_filter_eq_nul_nul(self):
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Keyword = self.classes.Keyword
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self._equivalent(self.session.query(Keyword).filter(Keyword.user
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== self.u),
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self.session.query(Keyword).
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filter(Keyword.user_keyword.has(user=self.u)))
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def test_filter_ne_nul_nul(self):
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Keyword = self.classes.Keyword
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self._equivalent(self.session.query(Keyword).filter(Keyword.user
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!= self.u),
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self.session.query(Keyword).
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filter(not_(Keyword.user_keyword.has(user=self.u))))
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def test_filter_eq_null_nul_nul(self):
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UserKeyword, Keyword = self.classes.UserKeyword, self.classes.Keyword
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self._equivalent(self.session.query(Keyword).filter(Keyword.user
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== None),
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self.session.query(Keyword).
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filter(Keyword.user_keyword.has(UserKeyword.user
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== None)))
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def test_filter_scalar_contains_fails_nul_nul(self):
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Keyword = self.classes.Keyword
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assert_raises(exceptions.InvalidRequestError, lambda : \
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Keyword.user.contains(self.u))
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def test_filter_scalar_any_fails_nul_nul(self):
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Keyword = self.classes.Keyword
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assert_raises(exceptions.InvalidRequestError, lambda : \
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Keyword.user.any(name='user2'))
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def test_filter_collection_has_fails_ul_nul(self):
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User = self.classes.User
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assert_raises(exceptions.InvalidRequestError, lambda : \
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User.keywords.has(keyword='quick'))
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def test_filter_collection_eq_fails_ul_nul(self):
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User = self.classes.User
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assert_raises(exceptions.InvalidRequestError, lambda : \
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User.keywords == self.kw)
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def test_filter_collection_ne_fails_ul_nul(self):
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User = self.classes.User
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assert_raises(exceptions.InvalidRequestError, lambda : \
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User.keywords != self.kw)
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def test_join_separate_attr(self):
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User = self.classes.User
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self.assert_compile(
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self.session.query(User).join(
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User.keywords.local_attr,
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User.keywords.remote_attr),
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"SELECT users.id AS users_id, users.name AS users_name, "
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"users.singular_id AS users_singular_id "
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"FROM users JOIN userkeywords ON users.id = "
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"userkeywords.user_id JOIN keywords ON keywords.id = "
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"userkeywords.keyword_id"
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)
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def test_join_single_attr(self):
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User = self.classes.User
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self.assert_compile(
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self.session.query(User).join(
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*User.keywords.attr),
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"SELECT users.id AS users_id, users.name AS users_name, "
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"users.singular_id AS users_singular_id "
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"FROM users JOIN userkeywords ON users.id = "
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"userkeywords.user_id JOIN keywords ON keywords.id = "
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"userkeywords.keyword_id"
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)
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class DictOfTupleUpdateTest(fixtures.TestBase):
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def setup(self):
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class B(object):
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def __init__(self, key, elem):
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self.key = key
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self.elem = elem
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class A(object):
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elements = association_proxy("orig", "elem", creator=B)
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m = MetaData()
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a = Table('a', m, Column('id', Integer, primary_key=True))
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b = Table('b', m, Column('id', Integer, primary_key=True),
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Column('aid', Integer, ForeignKey('a.id')))
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mapper(A, a, properties={
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'orig':relationship(B, collection_class=attribute_mapped_collection('key'))
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})
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mapper(B, b)
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self.A = A
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self.B = B
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def test_update_one_elem_dict(self):
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a1 = self.A()
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a1.elements.update({("B", 3): 'elem2'})
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eq_(a1.elements, {("B",3):'elem2'})
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def test_update_multi_elem_dict(self):
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a1 = self.A()
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a1.elements.update({("B", 3): 'elem2', ("C", 4): "elem3"})
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eq_(a1.elements, {("B",3):'elem2', ("C", 4): "elem3"})
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def test_update_one_elem_list(self):
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a1 = self.A()
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a1.elements.update([(("B", 3), 'elem2')])
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eq_(a1.elements, {("B",3):'elem2'})
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def test_update_multi_elem_list(self):
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a1 = self.A()
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a1.elements.update([(("B", 3), 'elem2'), (("C", 4), "elem3")])
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eq_(a1.elements, {("B",3):'elem2', ("C", 4): "elem3"})
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def test_update_one_elem_varg(self):
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a1 = self.A()
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assert_raises_message(
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ValueError,
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"dictionary update sequence requires "
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"2-element tuples",
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a1.elements.update, (("B", 3), 'elem2')
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)
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def test_update_multi_elem_varg(self):
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a1 = self.A()
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assert_raises_message(
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TypeError,
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"update expected at most 1 arguments, got 2",
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a1.elements.update,
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(("B", 3), 'elem2'), (("C", 4), "elem3")
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)
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