private static ReadOnlyObservableCollection <ValidationError> Create(int n)
{
var errors = new ObservableCollection <ValidationError>();
for (int i = 0; i < n; i++)
{
errors.Add(TestValidationError.Create());
}
return(new ReadOnlyObservableCollection <ValidationError>(errors));
}
public void RefreshRemoveSingleNull()
{
var error = TestValidationError.Create();
var reference = new ObservableCollection <ValidationError> {
error
};
var expectedEvents = reference.SubscribeAllEvents();
var errors = new ErrorCollection {
error
};
var allEvents = errors.SubscribeAllEvents();
errors.Refresh(null);
reference.Remove(error);
CollectionAssert.AreEqual(expectedEvents, allEvents, ObservableCollectionArgsComparer.Default);
CollectionAssert.AreEqual(reference, errors);
}
public void RefreshAddMany()
{
var error = TestValidationError.Create();
var errors = new ErrorCollection {
error
};
var allEvents = errors.SubscribeAllEvents();
var newErrors = Create(3);
errors.Refresh(newErrors);
var expectedEvents = new List <EventArgs>
{
new PropertyChangedEventArgs("Count"),
new PropertyChangedEventArgs("Item[]"),
new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset)
};
CollectionAssert.AreEqual(expectedEvents, allEvents, ObservableCollectionArgsComparer.Default);
CollectionAssert.AreEqual(newErrors, errors);
}