Refining test.

Author: Johannes Markert

test/test_forestwrapper.jl

@@ -3,7 +3,10 @@
     # Clean up t8code before MPI shuts down.
     MPI.add_finalize_hook!() do
         T8code.clean_up()
-        T8code.Libt8.sc_finalize()
+        status = T8code.Libt8.sc_finalize_noabort()
+        # If the following test fails the allocated objects were not cleaned up
+        # properly before shutting down.
+        @test status == 0
     end
 
     # Create a forest and wrap by `ForestWrapper`