public void CalculateCoordinatesTouched_W() { List <string> coordinateList = new List <string>(); RobotService service = new RobotService(); coordinateList = service.CalculateCoordinatesTouched("0 0", "W", 10, out string stoppedLocation); CollectionAssert.Contains(coordinateList, "0 -10"); Assert.IsTrue(coordinateList.Count == 10); }