A device is tested using a system that includes automatic test equipment (ATE) and a computer. At the ATE, the testing includes receiving data from the device, and processing the data to obtain processed data. At the computer, the testing includes executing a computer program while the data is being processed at the ATE, where the computer program processes an object that contains a pointer, passing the object to the ATE, and receiving the object from the ATE. The pointer in the object is replaced with the processed data.