public void RfidReader_OnRfidRead_EventFired()
        {
            int Argument  = 0;
            var wasCalled = false;

            _uut.RfidDetectedEvent += ((sender, e) => { wasCalled = true;
                                                        Argument = e.id; });
            _uut.RfidRead(200);
            Assert.True(wasCalled);
            Assert.That(Argument, Is.EqualTo(200));
        }