public void UpdateCoordinatesTest()
        {
            BattleArea  battleArea = new BattleArea();
            CoOrdinates coords     = new CoOrdinates('1', 'Y');

            coords.Value = 1;
            battleArea.GetAcquireCoordinates().Add(coords);

            battleArea.UpdateCoordinates(new CoOrdinates('1', 'Y'));

            Assert.AreEqual(battleArea.GetAcquireCoordinates()[0].Value, 0);
        }