Parameterized testing: You want Inputs and Outputs

Is your test in the business of calculating the expected output from the inputs? Then your test is duplicating the logic from the code under test. There is a reason why too much logic in tests is frowned upon: If you implement the same logic twice, you are prone to repeat the same mistakes in the test which you already made in the real implementation. for c in [ Case(socket_type=SOCK_STREAM, fruit="Apple"), Case(socket_type=SOCK_STREAM, fruit="Orange"), Case(socket_type=SOCK_DGRAM, fru...