Injector Pop/Nozzle Tester yes.

So called test stand no.
In order to get any idea what the Fuel Injection Pump is doing you have to run it long enough on the Test Stand to get it nice and hot. After that in order to measure the Fuel Quanitiy with any accuracy you need to have a Flow Meter for each Injector or some sort of switching valve so one Flow Meter can be used on each Injector.

Or the older way after clearing the Air out of the system you hit a button on the Test Stand and it channeled the Injected Fuel into Graduates. After X amount of strokes of the Fuel Injection Pump it cut the Fuel (actually Calibration Oil) off from going into the Graduates and you read the measurements of each Graduate (one Graduate per Fuel Injection Pump Element).

There is more to it than that but the above is the bare minimum.

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84 300D, 82 Volvo 244Gl Diesel