public static IEnumerable <object[]> TestData()
{
var grid = GridFactory.Produce(new[]
{
"S 1 1",
"1 W 1",
"1 1 F"
}, GridType.Horizontal);
yield return(new object[] { grid, grid[0, 0], new Position[] { new(0, 1), new(1, 0) } });
