diff -r 116fa3c8584f -r 1bd800376e0c pre_marking2/docdiff_test1.scala
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pre_marking2/docdiff_test1.scala	Wed Dec 02 01:15:14 2020 +0000
@@ -0,0 +1,5 @@
+
+import CW7a._
+
+assert(clean("ab a abc") == List("ab", "a", "abc"))
+assert(clean("ab*a abc1") == List("ab", "a", "abc1"))