When MCAS was running rampant for Forkner, was it during a simulation of a failure of the angle of attack sensor that MCAS relied on? If so, then they basically

When MCAS was running rampant for Forkner, was it during a simulation of a failure of the angle of attack sensor that MCAS relied on? If so, then they basically predicted the failure that people are saying likely caused the crashes. If not, then perhaps there is another scenario where MCAS runs amok. Either way it's incredible.