diff -r e9d14d58be3c -r daf561a83ba6 main_marking1/drumb_test4.scala
--- a/main_marking1/drumb_test4.scala	Thu Jan 13 12:55:03 2022 +0000
+++ b/main_marking1/drumb_test4.scala	Mon Apr 11 23:55:27 2022 +0100
@@ -1,6 +1,6 @@
 
 
-assert(CW6b.get_delta(None, None) == None)
-assert(CW6b.get_delta(Some(50.0), None) == None)
-assert(CW6b.get_delta(None, Some(100.0)) == None)
-assert(CW6b.get_delta(Some(50.0), Some(100.0)) == Some(1.0))
+assert(M1.get_delta(None, None) == None)
+assert(M1.get_delta(Some(50.0), None) == None)
+assert(M1.get_delta(None, Some(100.0)) == None)
+assert(M1.get_delta(Some(50.0), Some(100.0)) == Some(1.0))