Testing

sealed class Lce<T> {
    class Loading<T> : Lce<T>()
    data class Content<T>(val packet: T) : Lce<T>()
    data class Error<T>(val packet: T) : Lce<T>()
}

//Test code

@Test
    fun eventToResult_eventIsScreeLoad_resultIsLoadingThenContentOfResults() {
        
        //Given
        val testObserverState = searchViewModel.viewState.test()
        val spiedSearchViewModel = Mockito.spy(searchViewModel)
        
        //When
        spiedSearchViewModel.onEvent(Event.ScreenLoad)

        //Then
        verify(spiedSearchViewModel, times(1)).resultToViewState(Lce.Loading()) //Not the same Lce.Loading() object as in VM
        verify(spiedSearchViewModel, times(1)).resultToViewState(Lce.Content(Result.SearchResults(mockResults)))
    }

/// ViewModel code


override fun eventToResult(event: Event) {
        when (event) {
            is Event.ScreenLoad -> { onScreenLoad() }
        }
    }

private fun onScreenLoad() {
        resultToViewState(Lce.Loading()) //Not the same Lce.Loading() object as in test
        viewModelScope.launch {
            val podcastsResponse = repository.getPodcastsASync()
            resultToViewState(Lce.Content(Result.SearchResults(podcastsResponse.podcasts)))
        }
    }