Item 5 in TFA is one that I found related to performance most. Using filters to toss out bad input means you're potentially generating thousands of inputs for dozens of tests. Aggregate this across all your tests and it's an incredible waste of time. Constructing proper inputs directly can get you closer to the minimum time required to execute the tests and help achieve that desired performance threshold. (NB: Not used professionally, only got one office to even entertain them but they wouldn't take it and run with it even after I showed them a dozen errors I'd found in an hour of using them. Consequently my experience is still limited.)
Comments
Item 5 in TFA is one that I found related to performance most. Using filters to toss out bad input means you're potentially generating thousands of inputs for dozens of tests. Aggregate this across all your tests and it's an incredible waste of time. Constructing proper inputs directly can get you closer to the minimum time required to execute the tests and help achieve that desired performance threshold. (NB: Not used professionally, only got one office to even entertain them but they wouldn't take it and run with it even after I showed them a dozen errors I'd found in an hour of using them. Consequently my experience is still limited.)