· Import from compat what comes from compat. Yes, some names are available in utils too, but that's an implementation detail.
· Use _match_id consistently whenever possible
· Fix some outdated tests
· Use consistent valid URL (always match the whole protocol, no ^ at start required)
· Use modern test definitions
We could also set up a formula which would weigh filesize/bitrate and vcodec/acodec (say, 1GB h264 < 3 GB MPEG2 < 2 GB h264), but that would get really messy real soon.