def test_notifyRerun_for_delayed_finalization(self):
gc.collect()
comments = []
class Test_Finalizable(object):
def __init__(self, name):
self.name = name
def __repr__(self):
return "<" + self.name + ">"
def __del__(self):
comments.append("del " + self.name)
a = Test_Finalizable("a")
lst = []
lst1 = [lst]
lst.append(lst1)
a.b = Test_Finalizable("b")
a.b.lst = lst
del lst
del lst1
try:
self.assertTrue(gc.isMonitored(a))
self.assertTrue(gc.isMonitored(a.b))
except AttributeError:
pass
del a
self.assertEqual(gc.collect(),
2) # c is not cyclic and a, b are resurrected,
# the cycle of two lists is counted here
self.assertEqual(comments, ['del a', 'del b'])
def test_notifyRerun_for_delayed_finalization(self):
gc.collect()
comments = []
class Test_Finalizable(object):
def __init__(self, name):
self.name = name
def __repr__(self):
return "<"+self.name+">"
def __del__(self):
comments.append("del "+self.name)
a = Test_Finalizable("a")
lst = []
lst1 = [lst]
lst.append(lst1)
a.b = Test_Finalizable("b")
a.b.lst = lst
del lst
del lst1
try:
self.assertTrue(gc.isMonitored(a))
self.assertTrue(gc.isMonitored(a.b))
except AttributeError:
pass
del a
self.assertEqual(gc.collect(), 2) # c is not cyclic and a, b are resurrected,
# the cycle of two lists is counted here
self.assertEqual(comments, ['del a', 'del b'])
def test_monitor_status_after_delayed_finalization(self):
resurrect = []
comments = []
class Test_Finalizable(object):
def __init__(self, name):
self.name = name
def __repr__(self):
return "<" + self.name + ">"
def __del__(self):
comments.append("del " + self.name)
class Test_Resurrection(object):
def __init__(self, name):
self.name = name
def __repr__(self):
return "<" + self.name + ">"
def __del__(self):
comments.append("del " + self.name)
if hasattr(self, "toResurrect"):
resurrect.append(self.toResurrect)
a = Test_Finalizable("a")
a.b = Test_Finalizable("b")
c = Test_Resurrection("c")
c.toResurrect = a
a.b.a = a
self.assertTrue(gc.isMonitored(a))
self.assertTrue(gc.isMonitored(a.b))
self.assertTrue(gc.isMonitored(c))
gc.collect()
del a
del c
#gc.set_debug(gc.DEBUG_SAVEALL)
self.assertEqual(gc.collect(),
0) #c is not cyclic and a, b are resurrected,
#so nothing to count here
#self.asserEqual(len(gc.garbage), 0)
# if we called gc.set_debug(gc.DEBUG_SAVEALL) above, it would
# be okay for gc.garbage to be empty, because a and b
# are not finalized and c is not cyclic.
self.assertEqual(comments, ['del c'])
self.assertEqual(str(resurrect), "[<a>]")
self.assertTrue(gc.isMonitored(resurrect[0]))
self.assertTrue(gc.isMonitored(resurrect[0].b))
def test_monitor_status_after_delayed_finalization(self):
resurrect = []
comments = []
class Test_Finalizable(object):
def __init__(self, name):
self.name = name
def __repr__(self):
return "<"+self.name+">"
def __del__(self):
comments.append("del "+self.name)
class Test_Resurrection(object):
def __init__(self, name):
self.name = name
def __repr__(self):
return "<"+self.name+">"
def __del__(self):
comments.append("del "+self.name)
if hasattr(self, "toResurrect"):
resurrect.append(self.toResurrect)
a = Test_Finalizable("a")
a.b = Test_Finalizable("b")
c = Test_Resurrection("c")
c.toResurrect = a
a.b.a = a
self.assertTrue(gc.isMonitored(a))
self.assertTrue(gc.isMonitored(a.b))
self.assertTrue(gc.isMonitored(c))
gc.collect()
del a
del c
#gc.set_debug(gc.DEBUG_SAVEALL)
self.assertEqual(gc.collect(), 0) #c is not cyclic and a, b are resurrected,
#so nothing to count here
#self.asserEqual(len(gc.garbage), 0)
#if we called gc.set_debug(gc.DEBUG_SAVEALL) above, it would
#be okay for gc.garbage to be empty, because a and b
#are not finalized and c is not cyclic.
self.assertEqual(comments, ['del c'])
self.assertEqual(str(resurrect), "[<a>]")
self.assertTrue(gc.isMonitored(resurrect[0]))
self.assertTrue(gc.isMonitored(resurrect[0].b))
