1 

     2 import scala.concurrent._

     3 import scala.concurrent.duration._

     4 import ExecutionContext.Implicits.global

     5 import scala.language.postfixOps 

     6 

     7 lazy val f = Future {

     8 

     9 assert( ordered_moves(8, List((3,4), (3,2)), (1, 3)) == List((0,1), (0,5), (2,1), (2,5)))

    10 assert( ordered_moves(8, List((4,0)), (0,0)) == List((2,1), (1,2)))

    11 assert( ordered_moves(8, List((0,4)), (0,0)) == List((1,2), (2,1)))

    12 

    13 }

    14 

    15 Await.result(f, 120 second)