Systems and methods may include sending, to a downhole tool emulator, at least one input signal that represents one or more conditions in a simulated well system. The downhole tool emulator may include one or more electronic components to be placed in a downhole tool. The at least one input signal may be generated based at least partially on a reservoir model of the simulated well system. The method may include receiving at least one output signal that represents a response of the downhole tool emulator to the one or more conditions. The method may also include sending, to the downhole tool emulator, at least one command that represents an operation of the downhole tool emulator. The at least one command may represent a change in the operation of the downhole tool emulator based at least partially on the one or more conditions and the response.