So i don't think this is a valid test. To really test autoneg off, you need to configure both ends of the link.
I will change the implementation to configure both the ends of the link appropriately in the next version.
That would be good, but it does make the test and the test setup a lot more complex. I would suggest keeping such two target tests separate. Also, look to see if there are other such tests using two targets, and keep the basic configuration the same, IP address configuration, how to SSH between them etc. I'm not too familiar with the test framework. Maybe this is all a solved problem and there are helpers to use?
Andrew