Yes, the randomness is still there but less manually specified by the developer. But also I haven't actually used it myself but had seen stuff on it before, so

Yes, the randomness is still there but less manually specified by the developer. But also I haven't actually used it myself but had seen stuff on it before, so I had the wrong term: it's "property-based testing" you want to look for. Here's an example with a python library: https://hypothesis.readthedocs.io/en/latest/tutorial/introduction.html#testing-a-sorting-algorithm https://hypothesis.readthedocs.io/en/latest/tutorial/introdu... The strategy "st.lists(st.integers())" generates a random list of integers that get passed into the test function. And also this page says by default tests would be run (up to) 100 times: https://hypothesis.readthedocs.io/en/latest/tutorial/settings.html https://hypothesis.readthedocs.io/en/latest/tutorial/setting... So I'm thinking... (not tested) @given(st.integers(), st.integers()) def test_math_add(a, b): assert a + b == math_add(a, b) ...which is of course a little silly, but math_add() is a bit of a silly function anyway.