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> And time spent on designing and writing type safe code is almost equivalent to time spent writing tests that serve as an end-to-end contract. Do you write te
by instig007 1y ago
> And time spent on designing and writing type safe code is almost equivalent to time spent writing tests that serve as an end-to-end contract.
Do you write tests for every third-party function that interacts with your code, so that it never fails in runtime after a version bump?
How do you guarantee that your own refactoring is exhaustively covered by the prior tests you've written for the old version?
- zdragnar 1y agoYou don't need a test for every function. You probably want every function call covered by a test, though, otherwise you have untested code. The exact granularity is a debate that has gone on for a long time. Nowadays, people seem to prefer larger tests that cover more code in one go so as to avoid lots of mocking / stubbing. Super granular tests tend to be reserved for libraries with no internal state.
- epgui 1y agoWhile what you say could be argued, this is both an insufficient argument against, and irrelevant to, the post you’re commenting on.