def test_source_unannotated():
children.reset()
parents.reset()
parent = m.Parent()
assert parents.alive == 1
assert children.created == 0
assert children.destroyed == 0
parent.source()
assert children.created == 1
assert children.destroyed == 1
assert children.alive == 0
del parent
assert parents.alive == 0
def test_ctor_keep_alive():
children.reset()
parents.reset()
assert children.created == 0
assert children.destroyed == 0
assert children.alive == 0
assert parents.alive == 0
parent = m.Parent(m.Child())
assert children.created == 1
assert children.destroyed == 0
assert children.alive == 1
assert parents.alive == 1
del parent
assert parents.alive == 0
assert children.created == 1
assert children.destroyed == 1
assert children.alive == 0
def test_sink_keep_alive_plain():
children.reset()
parents.reset()
parent = m.Parent()
assert parents.alive == 1
assert children.created == 0
assert children.destroyed == 0
assert children.alive == 0
parent.sink_keep_alive_plain(m.Child())
assert children.created == 1
assert children.destroyed == 0
assert children.alive == 1
del parent
assert parents.alive == 0
assert children.created == 1
assert children.destroyed == 1
assert children.alive == 0
def test_sink_unannotated():
children.reset()
parents.reset()
parent = m.Parent()
assert parents.alive == 1
assert children.created == 0
assert children.destroyed == 0
m.Child()
assert children.created == 1
assert children.destroyed == 1
assert children.alive == 0
parent.sink(m.Child())
assert children.created == 2
assert children.destroyed == 2
assert children.alive == 0
del parent
assert parents.alive == 0
def test_source_keep_alive_parent():
children.reset()
parents.reset()
parent = m.Parent()
assert parents.alive == 1
assert children.created == 0
assert children.destroyed == 0
child = parent.source_keep_alive_parent()
assert children.created == 1
assert children.destroyed == 0
assert children.alive == 1
del parent
assert parents.alive == 1
assert children.alive == 1
del child
assert parents.alive == 0
assert children.alive == 0