public void ShouldGetNeighborsOfCell()
 {
     var sut = new World();
     var loc = new Location(1, 1);
     sut.PlaceCell(loc);
     sut.PlaceCell(new Location(1, 2));
     var result = sut.GetNeighborsOfLocation(loc);
     Assert.That(result, Is.EqualTo(1));
 }