The invention relates to a device and a method for testing systems or devices with visual output and at least one mechanical input element. The device comprises an input unit for the automated mechanical actuation of the at least one input element of the device, an image analysis unit, which acquires and analyzes the visual output of the device, and a control unit, which controls the input unit and image analysis unit, and automatically determines a test result based on predetermined desired outputs and the findings of the image analysis unit.