Incorrect again. If computers were so good at testing machinery, hundreds of expensive LCA test flights would not have been needed. We could have flown LCA five times and then said that there is enough data to do the rest of the testing in computers.
Similary, if computers were so good at testing, France and other countries would not have any need to carry out live nuclear bomb tests (where they actually drop nuclear bombs from a plain and see if its blows up).
Five tests do not lead to anything reliable. Would you ride on a plane that has only been tested five times?
Nuclear weapons are not developed for normal times. They are there to protect the country during unusual times.