public void NumLiveNeighborsTest() { World world = new World(); world.AddCell(0, 0); world.AddCell(0, 1); world.AddCell(2, 3); world.AddCell(-1, -1); Assert.AreEqual(1, world.NumLiveNeighbors(0, 1)); Assert.AreEqual(2, world.NumLiveNeighbors(0, 0)); }