def test_tile_from_xy_returns_correctly5(self):
m = GreyCubeMap(width=1536, height=1024)
i = m.tile_from_xy((1535, 1023))
self.assertEqual(5, i.cube_face)
def test_tile_from_xy_returns_correctly3(self):
m = GreyCubeMap(width=1536, height=1024)
i = m.tile_from_xy((0, 512))
self.assertEqual(3, i.cube_face)