I know it may look strange in isolation bit I found it worked well to help ensure I had unit tests across each of my methods as I would list each method using the suggested style here. Also i find where I want more narrative context eg more nicely worded lines I would make describe or context which wrap around a specific method test or group of methods being tested.

Once you have lots of tests, then this style approach just takes out more of the thinking up what to write mental effort and also provides a nice clean consistent style across your whole project.