5 ms·

But why was the scenario not tested before production? Should that not be the case anyway?

• cultus 8y ago
  You can never guarantee you really have 100% test coverage in all scenarios in complex software.
  • pjc50 8y ago
    Indeed. It gets asymptotically more expensive. Whereas a typechecker is a system of tests that's able to "cover" 100% of the code.
• empath75 8y ago
  It’s cute that you think tests find all problems.