public void Throws_ObjectDisposedException()
{
var d1 = new Component();
var collection = new DisposableCollection {d1};
collection.Dispose();
Assert.Throws<ObjectDisposedException>(() => collection.Add(d1));
Assert.Throws<ObjectDisposedException>(() => collection.Insert(0, d1));
// Cannot test object disposed exception for removal, as the collection
// is empty after it has been disposed.
Assert.AreEqual(0, collection.Count);
}
