def test_Disposable_dispose():
disposed = [False]
def action():
disposed[0] = True
d = Disposable(action)
assert not disposed[0]
d.dispose()
assert disposed[0]
def test_Disposable_dispose():
disposed = [False]
def action():
disposed[0] = True
d = Disposable(action)
assert not disposed[0]
d.dispose()
assert disposed[0]
def test_emptydisposable():
d = Disposable()
assert d
d.dispose()
def test_emptydisposable():
d = Disposable()
assert d
d.dispose()