def test_run(self):
ar = Arduino()
ar.stop = False
ar.no_serial = False
cb = MagicMock()
ar.ser = MagicMock()
def fake_readline(val):
return b"l"
ar.ser.readline = fake_readline
ar.subscribers = [cb]
ar.start()
ar.stop = True
ar.join()
cb.assert_called_with("l")
def test_send_value(self):
ar = Arduino()
ar.ser = MagicMock()
ar.no_serial = True
ar.previously_sent = None
ar.send_value("1")
self.assertFalse(ar.ser.write.called)
ar.no_serial = False
ar.previously_sent = None
ar.send_value("1")
ar.ser.write.assert_called_with(bytes("1", "UTF-8"))
self.assertEqual(ar.previously_sent, "1")
ar.ser.write.reset_mock()
ar.previously_sent = "1"
ar.send_value("1")
self.assertFalse(ar.ser.write.called)