diff -r 6bb7810d2108 -r 37e659cfbb2e marking4/bf1b_test.scala
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/marking4/bf1b_test.scala	Fri Nov 30 14:13:11 2018 +0000
@@ -0,0 +1,21 @@
+
+//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(jumpRight("[******]***", 1, 0) == 8)
+  assert(jumpRight("[**[*]*]***", 1, 0) == 8)
+  assert(jumpRight("[**[*]*]***", 1, 0) == 8)  
+  assert(jumpRight("[**[***]***", 1, 0) == 11)
+  assert(jumpRight("[*[][]*]***", 1, 0) == 8)
+  assert(jumpLeft("[******]***", 6, 0) == 1)
+  assert(jumpLeft("[******]***", 7, 0) == -1)
+  assert(jumpLeft("[*[][]*]***", 6, 0) == 1)
+//}
+
+//Await.result(f, 120 second)