Prefill AEM forms using XML

Hi,

We are in process of writing UI test case for AEM forms with approach of prefill data in AEM forms using XML by Hobbes/Calvin.

Anyone implemented this approach?. If yes please let me know the steps you followed to get this done.

Appreciate your help .

AEM stack used:

AEM 6.3

Service pack 2

CFP 2.0

Thanks.