If it is digging and loading normally and the transmission temperature stays within the design limits, no alarms and within gauge indications, just keep working. If you feel you have to run a test to satisfy an operator, then I suggest a full stall test. This works for a standard power shift transmission and torque converter machine. Raise the boom all the way up or tilt the bucket all the way back against the stops. Now hold the service brakes tight and put the transmission in third gear and floor the accelerator pedal to get full engine output. Check the engine speed in this condition and write it down. Now while holding this condition hold your hydraulics over relief by dogging in the bucket tilt or boom and and read the engine RPM again. Write it down. You should also watch the transmission temperature while doing this test. It should raise up pretty quickly. Once done put the hydraulic function in hold and let off the engine speed and take the transmission out of gear. Watch the transmission temperature and it should drop as quick as it rose up. Now you have a specification that you can compare against the manufacturer's specification to know that the output of the engine and condition of the drive train and hydraulics is normal or not. If you have a high
If you have a hydrostatic drive machine, all that I know that you can do is check cycle times, pressures and watch your temperatures.