Faster way to understanding ATPG (Automatic Test Pattern Generation) 

Structural testing is done for finding manufacturing defects i.e. structural integrity. And Digital testing is for finding the functional correctness. So these two go hand-in-hand, and we can't replace one with another right?

2(n+1) patterns needed to find stuck at faults. General rule; n = number of pins. In+out

Hey, great explanation! DFT or Verification engineer???

Any text book on ATPG

Time stamp 2:48😅😂