def initial(self):
return null_sink()
def test_closed_sink_raises_stop_iteration(self):
sink = null_sink()
sink.close()
with self.assertRaises(StopIteration):
sink.send(42)
def test_sent_items_are_sunk(self):
sink = null_sink()
for i in range(100):
sink.send(100)
sink.close()
def initial(self):
return null_sink()
