5 ms·

Imagine the dread if they find out who wrote the code. Also to be honest, shouldn't this have been better unit tested? Considering aviation is a ~ £60 billion

• monooso 3y ago
  In their defence, they did manage to process 15 million flight paths before encountering this problem. Some bugs are just really difficult to predict.
• krisoft 3y ago
  > Also to be honest, shouldn't this have been better unit tested? We don't know how well it was tested. (unit or otherwise) What we know that it has processed 15 millions of flight plans previously without revealing this flaw. So they must have got some things right.
• throwaway154 3y ago
  Not a unit test problem. Relying on it's unit tested strong systems does not make. There's a lot more to testing.
• petesergeant 3y ago
  > shouldn't this have been better unit tested Entirely possible there was a unit test that confirmed the system would error out in this particular condition. This sounds more like a requirements issue.