Faster VTY and CTRL interface test (osmodevcon2018)

using new osmo_interact_vty.py and osmo_interact_ctrl.py for faster VTY and CTRL interface test I often found writing python code to test VTY and CTRL interface interactions slow, firstly the time to write it, secondly that our current tests launch a new binary to test against for each test, adding 3 seconds of idle waiting all over the place. I often wished I could just type a telnet VTY session interactively, and magically use that as test. And then I found it fairly easy to implement exactly that, and that the CTRL interface neatly matches the same paradigm. In this talk I'll briefly show what it looks like. about this event: https://c3voc.de