def test_gc(self):
"""refcount agnostic check that contained objects are freed"""
def before_callback(parent):
return r[0]
def after_callback(parent):
return r[1]
class Obj(object):
pass
p = Obj()
a = Obj()
r = [Obj(), Obj()]
weak_p = weakref.ref(p)
weak_a = weakref.ref(a)
weak_r0 = weakref.ref(r[0])
weak_r1 = weakref.ref(r[1])
weak_before = weakref.ref(before_callback)
weak_after = weakref.ref(after_callback)
kwds = dict(self.view_keywords)
kwds['parent'] = p
kwds['before'] = before_callback
kwds['after'] = after_callback
v = BufferProxy(kwds)
v.some_attribute = a
weak_v = weakref.ref(v)
kwds = p = a = before_callback = after_callback = None
gc.collect()
self.assertTrue(weak_p() is not None)
self.assertTrue(weak_a() is not None)
self.assertTrue(weak_before() is not None)
self.assertTrue(weak_after() is not None)
v = None
[gc.collect() for x in range(4)]
self.assertTrue(weak_v() is None)
self.assertTrue(weak_p() is None)
self.assertTrue(weak_a() is None)
self.assertTrue(weak_before() is None)
self.assertTrue(weak_after() is None)
self.assertTrue(weak_r0() is not None)
self.assertTrue(weak_r1() is not None)
r = None
gc.collect()
self.assertTrue(weak_r0() is None)
self.assertTrue(weak_r1() is None)
# Cycle removal
kwds = dict(self.view_keywords)
kwds['parent'] = []
v = BufferProxy(kwds)
v.some_attribute = v
tracked = True
for o in gc.get_objects():
if o is v:
break
else:
tracked = False
self.assertTrue(tracked)
kwds['parent'].append(v)
kwds = None
gc.collect()
n1 = len(gc.garbage)
v = None
gc.collect()
n2 = len(gc.garbage)
self.assertEqual(n2, n1)
def test_gc(self):
"""refcount agnostic check that contained objects are freed"""
def before_callback(parent):
return r[0]
def after_callback(parent):
return r[1]
class Obj(object):
pass
p = Obj()
a = Obj()
r = [Obj(), Obj()]
weak_p = weakref.ref(p)
weak_a = weakref.ref(a)
weak_r0 = weakref.ref(r[0])
weak_r1 = weakref.ref(r[1])
weak_before = weakref.ref(before_callback)
weak_after = weakref.ref(after_callback)
kwds = dict(self.view_keywords)
kwds['parent'] = p
kwds['before'] = before_callback
kwds['after'] = after_callback
v = BufferProxy(kwds)
v.some_attribute = a
weak_v = weakref.ref(v)
kwds = p = a = before_callback = after_callback = None
gc.collect()
self.assertTrue(weak_p() is not None)
self.assertTrue(weak_a() is not None)
self.assertTrue(weak_before() is not None)
self.assertTrue(weak_after() is not None)
v = None
gc.collect()
self.assertTrue(weak_v() is None)
self.assertTrue(weak_p() is None)
self.assertTrue(weak_a() is None)
self.assertTrue(weak_before() is None)
self.assertTrue(weak_after() is None)
self.assertTrue(weak_r0() is not None)
self.assertTrue(weak_r1() is not None)
r = None
gc.collect()
self.assertTrue(weak_r0() is None)
self.assertTrue(weak_r1() is None)
# Cycle removal
kwds = dict(self.view_keywords)
kwds['parent'] = []
v = BufferProxy(kwds)
v.some_attribute = v
tracked = True
for o in gc.get_objects():
if o is v:
break
else:
tracked = False
self.assertTrue(tracked)
kwds['parent'].append(v)
kwds = None
gc.collect()
n1 = len(gc.garbage)
v = None
gc.collect()
n2 = len(gc.garbage)
self.assertEqual(n2, n1)
