Yes I would definately skip that test. Your test is far better and will tell you what you need to know if you let them all run longer. Hopefully you won't run out of water, but if you do, you'll know the well has drawn down to the pump. That would be a great time to turn off the breaker to the pump to let the well recover and keep the pump from nuking itself. If you time the test, you can get a feel for just how much water you have at any given time after well recovery before running out. If you think you can live with it, fine. If not, you will be looking at a cistern, another pump and tank along with the controls to make it all work and some kind of disinfectant method for the cistern.
bob...