Unit Testing, Property Testing, Elixir Language, Elixirlang, Refactoring.
sublist -> Enum.member?(sublist, item) end) end) end) end Breaking this test requires modifying our return value. I split the return list and returned the tail, which gave me a failing value. I like to see things fail. Invariant 3: given a list (l) and an integer (k), the sum of the lengths of the