import scala.concurrent._

import scala.concurrent.duration._

import ExecutionContext.Implicits.global

import scala.language.postfixOps 

import scala.language.reflectiveCalls

lazy val f = Future {

  import CW8b._

  assert(start("[-]", Map(0 -> 100)) == Map(0 -> 0))

  assert(start("[->+<]", Map(0 -> 10)) == Map(0 -> 0, 1 -> 10))

  assert(start("[>>+>>+<<<<-]", Map(0 -> 42)) == Map(0 -> 0, 2 -> 42, 4 -> 42))

  assert(start("""++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]

       <-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.""", Map()) == Map(0 -> 0, 5 -> 33, 1 -> 0, 6 -> 10, 2 -> 72, 3 -> 100, 4 -> 87))

}

Await.result(f, 120 second)