public void Off_should_digitalwrite_low()
{
A.CallTo(() => _arduino.DigitalWrite(Pin, DigitalPin.Low)).DoesNothing();
var ledState = LedState.On;
_led.OnStateChanged = state => { ledState = state; };
_led.Off();
_led.State.ShouldEqual(LedState.Off);
A.CallTo(() => _arduino.DigitalWrite(Pin, DigitalPin.Low)).MustHaveHappened(Repeated.Exactly.Twice);
ledState.ShouldEqual(LedState.Off);
}
