[scripts] Update test script

scripts/test_dumux.sh

@@ -2,6 +2,8 @@
 # one-phase ground water flow example
 # and visualizes the result using paraview.
 cd dumux/build-cmake/test/porousmediumflow/1p/implicit
-make -B test_cc1p
-./test_cc1p test_cc1p.input
+echo "Compiling a one-phase test using a cell-centered TPFA discretization (might take a while)..."
+make -B test_1pcctpfa
+echo "Running simulation..."
+./test_1pcctpfa test_1pfv.input -Grid.Cells "100 100"
 paraview *pvd