Changing an existing stage is an important feature available in the editor, but none of our existing tests cover this path. A simple ATH test (or even an addition to another, existing test) would be a nice coverage improvement.
which we could then use the editor to change into
And then verify that we went from doing just one thing, to doing two things. The same test could delete a step as well:
In this way we'd cover stage renames, step additions, and step deletions, all in one case.