Testing onChange event with async code

[lalberto8085]

Hello,

I'm starting to use this for unit testing my front end code, so I need some help moving forward.

I have a Date attribute that will make an Xrm.WebApi.retrieveMultipleRecords call on the onChange handler. I saw the code sample on how to use sinon to mock the call, but it is sill async and I can't await it since fireOnChange is not "awaitable" (AFAIK).

Please point me in the right direction if there's any techniques or design patterns I'm missing. Thanks in advace