def had_pan_tilt_limit_expect_no_exception(self, pan, tilt):
connector = self.setup_connector()
hpt = HeadToPanTilt((pan, tilt))
hpt.perform(connector)
def had_pan_tilt_limit_expect_exception(self, pan, tilt):
connector = self.setup_connector()
hpt = HeadToPanTilt((pan, tilt))
with self.assertRaises(ValueError):
hpt.perform(connector)