def test_subclasses_weakref(self):
""" Make sure that dynamically created subclasses are not held
strongly by HasTraits.
"""
previous_subclasses = HasTraits.__subclasses__()
_create_subclass()
_create_subclass()
_create_subclass()
_create_subclass()
gc.collect()
self.assertEqual(previous_subclasses, HasTraits.__subclasses__())
def test_subclasses_weakref(self):
""" Make sure that dynamically created subclasses are not held
strongly by HasTraits.
"""
previous_subclasses = HasTraits.__subclasses__()
_create_subclass()
_create_subclass()
_create_subclass()
_create_subclass()
gc.collect()
self.assertEqual(previous_subclasses, HasTraits.__subclasses__())
def test_subclasses_weakref(self):
""" Make sure that dynamically created subclasses are not held
strongly by HasTraits.
"""
previous_subclasses = HasTraits.__subclasses__()
_create_subclass()
_create_subclass()
_create_subclass()
_create_subclass()
gc.collect()
# In Python < 3.6, we can end up seeing the same subclasses but in
# a different order, so use assertCountEqual rather than assertEqual.
# Ref: enthought/traits#1282.
self.assertCountEqual(previous_subclasses, HasTraits.__subclasses__())
