def __init__(self, name, pin, action, reset_state=True):
self.name = name
self.pin = pin
if action not in (Device.ACTION_PULSE, Device.ACTION_SWITCH):
raise DeviceWrongAction("Wrong action selected")
self.action = action
if reset_state:
gpio_commands.mode(pin=self.pin, set_mode="out")
gpio_commands.write(pin=self.pin, value=0)
# We assume that the initial state is "off". It is impossible to read
# actual state as well as the state can be interfered by the physical
# buttons (in case of "PULSE" switches). I will deal with that later. (FIXME)
self.write_state(state=0)
def test_set_wrong_mode(self):
with self.assertRaises(WrongMode):
mode(pin=1, set_mode='wrong_mode')
def test_mode_0_in(self, mock_system):
mode(pin=0, set_mode='in')
mock_system.assert_called_with('gpio -g mode 0 in')
def test_mode_wrong_pin(self):
with self.assertRaises(WrongPinNumber):
mode(pin=26, set_mode='out')
def test_mode_1_out(self, mock_system):
mode(pin=1, set_mode='out')
mock_system.assert_called_with('gpio -g mode 1 out')
