Add missing features to renderForTest Api #1427
                
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Description
Addresses issue #1152 : The
launchForTestingapis are deprecated and there's some extra work to bring all the missing features fromlaunchForTestingto therenderForTestapi. This PR addresses addresses the first two of four left over work streams to fully deprecate the old api namely:It also adds the functionality for
which were important parts of the usage of the old api.
I still plan to do some work use the Adapter/Facade pattern to make
launchForTestinguserenderForTestunder the hood in order to achieve goal 3, but that would be a separate PR.