public async Task FetchBirthdays()
{
var birthdayViewModel = new BirthdaysViewModel(new BirthdayServiceFake());
using (var propertyChangedTracker = new PropertyChangeTracker(birthdayViewModel)) {
await birthdayViewModel.FetchBirthdays();
Assert.NotNull(birthdayViewModel.ClosestBirthDay);
Assert.True(birthdayViewModel.FutureBirthdays.Count > 0);
propertyChangedTracker.VerifyNumberOfNotifications(2);
propertyChangedTracker.VerifyNotificationOfName("ClosestBirthDay");
propertyChangedTracker.VerifyNotificationOfName("FutureBirthdays");
}
}
