def test_create_component_dict(self):
cdict1 = self._container_type(
(i, self._ctype_factory()) for i in range(5))
self.assertEqual(len(cdict1), 5)
for obj in cdict1.values():
self.assertIs(obj.parent, cdict1)
objects = iter(cdict1.values())
def type_(x, y=None):
self.assertEqual(x, 1)
self.assertEqual(y, 'a')
type_ = lambda x, y=None: six.next(objects)
type_.ctype = cdict1.ctype
# this will result in cdict1 and cdict2
# being "equal" in that they both store the
# same objects, except that cdict2 has stolen
# ownership of the objects from cdict1 (all of the
# .parent weakrefs have been changed)
cdict2 = create_component_dict(self._container_type,
type_,
range(5),
1,
y='a')
self.assertEqual(len(cdict2), 5)
self.assertEqual(cdict1, cdict2)
self.assertIsNot(cdict1, cdict2)
for obj in cdict1.values():
self.assertIs(obj.parent, cdict2)
for obj in cdict2.values():
self.assertIs(obj.parent, cdict2)
def create_variable_dict(keys, *args, **kwds):
"""
Generates a full :class:`variable_dict`.
Args:
keys: The set of keys to used to populate the
variable_dict.
type_: The object type to populate the container
with. Must have the same ctype as
variable_dict. Default: :class:`variable`
*args: arguments used to construct the objects
placed in the container.
**kwds: keywords used to construct the objects
placed in the container.
Returns:
a fully populated :class:`variable_dict`
"""
type_ = kwds.pop('type_', variable)
return create_component_dict(variable_dict, type_, keys, *args, **kwds)
