diff --git a/test/Handler/Utils/ExamSpec.hs b/test/Handler/Utils/ExamSpec.hs
index b26e30fa3..fe848698d 100644
--- a/test/Handler/Utils/ExamSpec.hs
+++ b/test/Handler/Utils/ExamSpec.hs
@@ -1,5 +1,4 @@
 {-# OPTIONS_GHC -Wno-redundant-constraints #-}
-{-# OPTIONS_GHC -Wwarn #-}
 
 module Handler.Utils.ExamSpec (spec) where
 
@@ -103,7 +102,7 @@ spec = do
     describe "examAutoOccurrence" $ do
         describe "Surname" $ testWithRule ExamRoomSurname
         describe "Matriculation" $ testWithRule ExamRoomMatriculation
-        -- TODO test with ExamRoomManual, ExamRoomFifo, (ExamRoomSurname), (ExamRoomMatriculation), ExamRoomRandom
+        describe "Random" $ testWithRule ExamRoomRandom
     where
         testWithRule :: ExamOccurrenceRule -> Spec
         testWithRule rule =
@@ -150,6 +149,7 @@ spec = do
                     -- is a nullResult justified?
                     Nothing -> pure ()
                         {-
+                        -- disabled for now, probably not correct with the current implementation
                         myAnnotate "unjustified nullResult"
                             $ shouldSatisfy (rule, userProperties, occurrences) $ uncurry3 isNullResultJustified
                         -}
@@ -252,7 +252,7 @@ spec = do
                                 transformTag (length -> rangeLength) = case rule of
                                     ExamRoomMatriculation -> reverse . take rangeLength . reverse
                                     _rule -> take rangeLength
-                        _otherwise -> False
+                        _otherwise -> (rule /= ExamRoomSurname) && (rule /= ExamRoomMatriculation)
         {-
         -- | Is mapping impossible?
         isNullResultJustified :: ExamOccurrenceRule