public void AddRange_EventMustBeFired()
{
var coll = new SilentObservableCollection <int>();
NotifyCollectionChangedEventArgs arg = null;
coll.CollectionChanged += (_, e) => arg = e;
coll.AddRange(1, 2, 3, 45);
Assert.IsNotNull(arg);
}
public void AddRange_AllValueMustAdded()
{
var set = new HashSet <int>
{
1, 2, 3, 4, 5, 67, 8, 91, 9, 87, 6, 5342, 2, 56, 43, 47
};
var coll = new SilentObservableCollection <int>();
coll.AddRange(set);
Assert.AreEqual(set.Count, coll.Count);
var inSetCount = coll.Distinct().Where(x => set.Contains(x)).Count();
Assert.AreEqual(set.Count, inSetCount);
}