diff -r 6ea450e999e2 -r 6d25ccbb3cf2 marking2/knight2a_test.scala --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/marking2/knight2a_test.scala Tue Dec 05 00:34:14 2017 +0000 @@ -0,0 +1,5 @@ + +val f = (x:(Int, Int)) => if (x._1 > 3) Some(List(x)) else None + +assert(CW7b.first(List((1,0),(2,0),(3,0),(4,0)), f) == Some(List((4,0)))) +assert(CW7b.first(List((1,0),(2,0),(3,0)), f) == None)