public void Should_set_preferences_object()
{
IAppState setState = null;
var storage = new Mock <IStorageProvider>();
storage.Setup(s => s.SetAppState(It.IsAny <IAppState>())).Returns <IAppState>((p) =>
{
setState = p;
return(true);
});
var state = new AppState();
var service = new AppStateService(storage.Object, new Mock <IMapper>().Object);
service.Save(state);
setState.Should().Be(state);
}