Investigate better ways to Test our UI

[Al12rs]

Spike

Proposal

We currently have stopped writing tests for UI as we don't really have a good system for them.
It isn't clear exactly what should be tested, only parts of VMs, all VMs, more than that?

Tests should be easy and quick to write, should be reliable and should have no issues when executed in parallel.

We should also define what kind of test approach want to support, regression testing, TDD, unit tests?

Impact

Currently ui tests are a pain to write, can't be run in parallel, are unreliable, break easily and have a higher maintenance cost than regression prevention value.