diff -r 116fa3c8584f -r 1bd800376e0c marking2/docdiff_test4.scala
--- a/marking2/docdiff_test4.scala	Mon Nov 30 12:58:37 2020 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,9 +0,0 @@
-
-import CW7a._
-
-val urban_list1 = List("a", "b", "b", "c", "d")
-val urban_list2 = List("d", "b", "d", "b", "d")
-
-assert(overlap(urban_list1, urban_list2) == 0.5384615384615384)
-assert(overlap(urban_list1, urban_list1) == 1.0)
-assert(overlap(urban_list2, urban_list2) == 1.0)