public void SynchronisedHashSetCopyToArrayCopiesItemsToArray() { var items = new List <string> { "Frodo", "Sam", "Merry", "Pippin" }; using (var set = new SynchronisedHashSet <string>(items)) { string[] array = new string[4]; set.CopyTo(array, 0); array.ToList().ForEach(i => { Assert.IsNotNull(i); }); } }