public void RemoveTest() { ListViewGroup obj = new ListViewGroup("Item1"); ListViewGroup obj2 = new ListViewGroup("Item2"); grpCol.Add(obj); grpCol.Add(obj2); grpCol.Remove(obj); Assert.AreEqual(1, grpCol.Count, "#F1"); Assert.AreEqual(null, obj.ListView, "#F2"); Assert.AreEqual(lv, obj2.ListView, "#F3"); }