public class DialogIdlingResource implements IdlingResource {
    private ResourceCallback resourceCallback;
    private View idView;
    private String text;

    public DialogIdlingResource(View idView, String text) {
        this.idView = idView;
        this.text = text;
    }

@Before
fun registerDialogIdlingResource() {
    val instrumentation = InstrumentationRegistry.getInstrumentation()
    idlingResource = DialogIdlingResource(instrumentation.)
    Espresso.registerIdlingResources(idlingResource)
}

idlingResource = DialogIdlingResource(instrumentation.targetContext)