Dev/testsuite rework 2

[george-cosma]

Please see:

• Tracking PR: Testsuite rework #150

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

see 3 files with indirect coverage changes

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• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[george-cosma]

I find it intresting that code coverage went down despite test resulte being the same. Perhaps there is a script/compulation error somewhere when originally it treated it as a simple error instead?