hello How to test `StateFlow` if I use `stateIn` f...

# android

[Mjahangiry75]

hello
How to test StateFlow
if I use stateIn function then I can't test the stateFlow using CoroutineTestRule

code in thread

[Mjahangiry75]

StateFlow:

@OptIn(FlowPreview::class)
    val state: StateFlow<SearchMovieState> =
        searchQuery
            .filter {
                it.isNotBlank()
            }
            .transform {
                emitAll(repository.searchMovieByTitle(it))
            }
            .debounce(700)
            .map(::reduce)
            .stateIn(viewModelScope, SharingStarted.Lazily, SearchMovieState.initial())

Test

@ExperimentalCoroutinesApi
class SearchMovieViewModelTest {

    @ExperimentalCoroutinesApi
    @get:Rule
    val coroutineTestRule = CoroutinesTestRule()

    private val repository: SubtitleRepository = mock()
    private val viewModel = SearchMovieViewModel(repository)

    @Test
    fun `test search movie event`() = runTest {

        val mockData = MockData.mockSearchMovieResult

        whenever(repository.searchMovieByTitle("hello")).thenReturn(flowOf(mockData))

        viewModel.search("hello")

        val result = viewModel.state
            .filter {
                it.result.isNotEmpty()
            }
            .first()

        result shouldNotBe null
        result.result.size shouldBe 2
    }
}