As of today (31st Dec 2018) I spoke to the traffic dept and was advised no tests required for conversion of UK licence.

However you do need NOC from company via Metrash 2. Now I cant get into Metrash yet as I need to take my QID to vodafone to update (initially was on UK passport) so I cant advise how easy/hard it is to do via that app, my company seem very confused by the question