Link: A testing conundrum
Link: A testing conundrum A thoughtful blog post by Ned Batchelder regarding a difficulty in testing a class that on the face of it should be straightforward to test. The class seems straightforward to test because: This is a pure function: inputs map to outputs with no side-effects or other interactions. It should be very testable. The code is basically a hashing function, for which he wants “equal” values to hash to the same hash, and non-equal values to hash to different hashes. ...