How to mock async functions?

[nagrock]

How to mock async functions?

[NagRock]

Hi @bahrmichael
First of all you can use thenResolve("value") functionality made by @johanblumenberg https://github.com/NagRock/ts-mockito#resolving--rejecting-promises without manually handling promises.

And the line of code I think makes problem in your example is when(this.restMock.fetchJson('url', anything)).thenReturn(promise);

You have forgotten brackets while using anything matcher" anything => anything()

You can change this line to: when(this.restMock.fetchJson('url', anything()).thenResolve(ssoToken)

[bahrmichael]

anything() did it. JavaScript is not my native language :/ Thank you very much!