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by nsajko 2751 days ago
But why was the scenario not tested before production? Should that not be the case anyway?
2 comments

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