I have been googling around but don't seem to be able to get this working, I am writing a unit test ...

# android

[Damien O'Reilly]

I have been googling around but don't seem to be able to get this working, I am writing a unit test for my ViewModel, and am trying to set a MutableLiveData<String> var in my ViewModel, via the test, however the value is never actually set, and the logic I want to test depends on this value not been null. In my test I am using:

@get:Rule
    var rule = InstantTaskExecutorRule()

Any idea what else I may be missing?

[pawegio]

what’s your assertion?

[Damien O'Reilly]

Actually it turns out that I needed to viewmodel.mutabledata.value = "xxx" and not viewmodel.mutabledata.postValue("xxx")