Spent 3 nights to make a single unittest pass. This night - sleep was soooo satisfying - i've finally felt I deserved to rest

@SHA-16384 simulating 3 different levels of network w/o using the network :) I solved the latter part easily, but getting my head sround which level my call is at any given moment and at which call did I forget to pasd the message to another gateway/update/register, while I have no actual network and everything is in the same test method call, same transaction, same log, etc 😁

but it was fun!

1 unittest
2 async but coupled transactions
3 network layers' simulation