diff -r a057dc4457fc -r 87b9e3e2c1a7 marking/re1b_test.scala
--- a/marking/re1b_test.scala	Tue Oct 29 11:11:44 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,16 +0,0 @@
-
-import scala.concurrent._
-import scala.concurrent.duration._
-import ExecutionContext.Implicits.global
-import scala.language.postfixOps 
-
-
-
-lazy val f = Future {
-  assert(der('a', ZERO | ONE) == (ZERO | ZERO))
-  assert(der('a', (CHAR('a') | ONE) ~ CHAR('a')) == ALT((ONE | ZERO) ~ CHAR('a'), ONE))
-  assert(der('a', STAR(CHAR('a'))) == (ONE ~ STAR(CHAR('a'))))
-  assert(der('b', STAR(CHAR('a'))) == (ZERO ~ STAR(CHAR('a'))))
-}
-
-Await.result(f, 120 second)