diff -r a057dc4457fc -r 87b9e3e2c1a7 marking1/collatz_test1.scala
--- a/marking1/collatz_test1.scala	Tue Oct 29 11:11:44 2019 +0000
+++ b/marking1/collatz_test1.scala	Tue Oct 29 14:12:24 2019 +0000
@@ -1,14 +1,8 @@
 
-def myassert(cond : => Boolean) = {
-  try {
-    assert(cond)
-  } catch { 
-    case _ : Throwable => System.exit(1)
-  }
-}
 
-myassert(collatz(1) == 0)
-myassert(collatz(6) == 8)
-myassert(collatz(9) == 19)
-myassert(collatz(9000) == 47)
+assert(CW6a.collatz(1) == 0)
+assert(CW6a.collatz(6) == 8)
+assert(CW6a.collatz(9) == 19)
+assert(CW6a.collatz(9000) == 47)
 
+