Plaid - ShowViewModelTest

ShowViewModelTest.kt

@Test
fun loadShot_emitsTwoUiModels() {
    // When the ViewModel has started
    val viewModel = ... // Creates viewModel

    // Then the fast result has been emitted
    val fastResult = viewModel.shotUiModel.getOrAwaitValue()
    // THIS FAILS!!! The slow result has already been emitted because the coroutine
    // was executed immediately and shotUiModel LiveData contains the slow result
    assertTrue(fastResult.formattedDescription.isEmpty())

    // And then, the slow result has been emitted
    val slowResult = viewModel.shotUiModel.getOrAwaitValue()
    assertTrue(slowResult.formattedDescription.isNotEmpty())
}