def test_get_gpio_pin_digital_state_bad_mode() -> None:
"""Test that we cannot get a digital state in the wrong mode."""
backend = SBArduinoConsoleBackend(
"TestBoard",
console_class=MockConsole,
)
backend._pins[4].mode = GPIOPinMode.DIGITAL_INPUT_PULLDOWN
with pytest.raises(ValueError):
backend.get_gpio_pin_digital_state(4)
def test_get_gpio_pin_digital_state() -> None:
"""Test that we can get a digital state."""
backend = SBArduinoConsoleBackend(
"TestBoard",
console_class=MockConsole,
)
backend._pins[10].digital_state = False
assert not backend.get_gpio_pin_digital_state(10)
backend._pins[10].digital_state = True
assert backend.get_gpio_pin_digital_state(10)
def test_ultrasound_pulse() -> None:
"""Test that we can read an ultrasound pulse time."""
backend = SBArduinoConsoleBackend(
"TestBoard",
console_class=MockConsole,
)
backend._console.next_input = "2345" # type: ignore
assert backend.get_ultrasound_pulse(3, 4) == timedelta(microseconds=2345)
# Check backend updated its view of what modes the pins are in now.
assert backend.get_gpio_pin_mode(3) is GPIOPinMode.DIGITAL_OUTPUT
assert backend.get_gpio_pin_digital_state(3) is False
assert backend.get_gpio_pin_mode(4) is GPIOPinMode.DIGITAL_INPUT
def test_ultrasound_distance() -> None:
"""Test that we can read an ultrasound distance."""
backend = SBArduinoConsoleBackend(
"TestBoard",
console_class=MockConsole,
)
backend._console.next_input = "1.23" # type: ignore
metres = backend.get_ultrasound_distance(3, 4)
assert metres is not None
assert isclose(metres, 1.23)
# Check backend updated its view of what modes the pins are in now.
assert backend.get_gpio_pin_mode(3) is GPIOPinMode.DIGITAL_OUTPUT
assert backend.get_gpio_pin_digital_state(3) is False
assert backend.get_gpio_pin_mode(4) is GPIOPinMode.DIGITAL_INPUT
