1. A device comprising: a housing; one or more sensors supported by the housing; and one or more modules disposed within the housing that are implemented at least partially in hardware, the one or more modules configured to test the one or more sensors by: processing inputs detected using the one or more sensors under test; and exposing one or more application programming interfaces to a robot to cause the robot to perform one or more operations that are detectable by the one or more sensors under test, the one or more operations usable to test detection performed by the one or more sensors and the processing of the inputs performed by the one or more modules under test.