One line game of life

gistfile1.cs

        [TestMethod]
        public void OneLiner()
        {

            Func<bool[], int, bool[]> gameOfLife =
                (cells, width) =>
                cells.Select((cell, index) =>
                             // Neighbours
                             new
                                 {
                                     IsAlive = cell,
                                     AliveNeighbours =
                                     (from dx in new[] { -1, 0, 1}
                                        from dy in new[] { -1, 0, 1}
                                        where !(dx == 0 && dy == 0)
                                        select new { X = index % width + dx, Y =  index / width + dy}
                                     ).Where(n => n.X >= 0 && n.Y >= 0 && n.X < width && n.Y < cells.Length/width)
                                      .Count(n => cells[n.Y*width + n.X])
                                 })
                    // Gameloop
                    .Select(cell => (cell.AliveNeighbours == 3) || (cell.IsAlive && cell.AliveNeighbours == 2))
                    .ToArray();


            var newboard = gameOfLife(new[] {false, false, false, true, true, true, false, false, false}, 3);

            CollectionAssert.AreEqual(new[] { false, true, false, false, true, false, false, true, false}, newboard);

            newboard = gameOfLife(newboard, 3);
            CollectionAssert.AreEqual(new[] {false, false, false, true, true, true, false, false, false}, newboard);

        }