A rest service with two actions allows you to trigger all server side unit/component tests (from UTF) and pull the results afterwards (since they might take some time).
Including this in your pipeline enables you to check the results and leverage this is a toll gate.
-- added two site variables.
1 with a token you should create or the authentication of the REST service
2 Fill in the Service User name which you create in lifetime (being logged in as test user)