DDDTest.kt

DDDTest.kt

class TasksViewModel: ViewModel {

    val taskItems: LiveData<List<TaskItem>>
    val _tasksItems: MutableLiveData<List<TaskItem>>

    fun loadTasks() {
        val tasks = tasksRepository.getAllTasks()
        _taskItems.value = tasks.map { it.toTaskItem() }
    }
}

class TasksViewModelTest {

    @Test
    fun `completedTasksAreRed`() {
        viewModel.loadTasks()

        val firstTask = tasksItemsLiveData.currentItems().first()

        firstTask.isComplete.shouldBeTrue()
        firstTask.color.shouldEqual(R.color.red)
    }
}