--- a/marking4/re1b_test.scala	Mon Dec 10 02:23:30 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,8 +0,0 @@
-
-import CW8a._
-
-assert(der('a', ZERO | ONE) == (ZERO | ZERO))
-assert(der('a', (CHAR('a') | ONE) ~ CHAR('a')) == ALT((ONE | ZERO) ~ CHAR('a'), ONE))
-assert(der('a', (CHAR('a') | CHAR('a')) ~ CHAR('a')) == (ONE | ONE) ~ CHAR('a'))
-assert(der('a', STAR(CHAR('a'))) == (ONE ~ STAR(CHAR('a'))))
-assert(der('b', STAR(CHAR('a'))) == (ZERO ~ STAR(CHAR('a'))))