public void Fn_TC1_AddToGrid(string letter) { mp.Refresh(); List <string> gridItems = mp.GetGridItems(); // remove before add in exists if (gridItems.Contains(letter)) { mp.DelGridItem(letter); } gridItems = mp.GetGridItems(); Assert.IsFalse(gridItems.Contains(letter), "req 1.2.1 'delete' letter failed, 'Add' could not be checked"); mp.AddGridItem(letter); gridItems = mp.GetGridItems(); Assert.IsTrue(gridItems.Contains(letter), "req 1.2.1 'Add' do not add letter {0} to grid", letter); }