Nicolas Dufresne authored Nov 16, 2018 and Tim-Philipp Müller committed Feb 18, 2019

It is really easy to break the API and insert a new video format in the
middle of the enum instead of at the end. This minimal test should catch
the most obvious errors. Ideally, this test should be updated after new
format have been added, so that it won't allow further modification to
the enumeration API.