Added TEST_EXIT back to make some fun for all other users.

AMDiS/src/Lagrange.cc

@@ -1224,6 +1224,9 @@ namespace AMDiS {
       if (list->getNeighbourElement(i, 1) && list->getNeighbourNr(i, 1) < i)
 	lr_set += 2;
       
+      TEST_EXIT(lr_set > 0) 	 
+	("No values set on both neighbours of element %d\n", el->getIndex());
+
       /****************************************************************************/
       /*  values on child[0]                                                      */
       /****************************************************************************/