Ps you can assert on matches too.
I take a different take. I encourage asserting as much as possible because asserts give better error messages than pattern matches. Probably don’t assert something that is a basically unfailable primitive on another library (for example assert :ok = MyPubSub.subscribe(...) is silly, but if it’s like assert {:ok, inserted} = Db.insert(...) Yeah go ahead and do it even if it’s part of your setup.
