public void RemoveRange()
{
var batchCollection = new DispatchingCollection <int> {
1, 2, 3, 4
};
using (var actual = batchCollection.SubscribeAll())
{
var expectedChanges = new List <EventArgs>
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
CachedEventArgs.NotifyCollectionReset,
};
batchCollection.RemoveRange(new[] { 1, 2 });
CollectionAssert.AreEqual(new[] { 3, 4 }, batchCollection);
CollectionAssert.AreEqual(expectedChanges, actual, EventArgsComparer.Default);
batchCollection.RemoveRange(new[] { 3, 4 });
CollectionAssert.IsEmpty(batchCollection);
expectedChanges.AddRange(
new EventArgs[]
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
CachedEventArgs.NotifyCollectionReset,
});
CollectionAssert.AreEqual(expectedChanges, actual, EventArgsComparer.Default);
}
}
public static void RemoveRangeSingle()
{
var reference = new ObservableCollection <int> {
1, 2, 3
};
using var expected = reference.SubscribeAll();
var batchCollection = new DispatchingCollection <int>(reference);
using var actual = batchCollection.SubscribeAll();
reference.Remove(1);
batchCollection.RemoveRange(new[] { 1 });
CollectionAssert.AreEqual(reference, batchCollection);
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
reference.Remove(2);
batchCollection.RemoveRange(new[] { 2 });
CollectionAssert.AreEqual(reference, batchCollection);
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}