public void GetVoltage_WhenCalled_ReturnPowerSupplyDeviceUpdatedWithVoltage()
        {
            const string comPort = "COM2";

            var powerSupplyDevice = _powerSupplyServiceClient.Connect(comPort);

            var result = _powerSupplyServiceClient.GetVoltage();

            Assert.That(result, Is.EqualTo(6.5));
        }