fix test

Author: ricardopeixotocoelho

examples/05-file-IO/02-hdf5_serialize_and_read.py

@@ -168,14 +168,15 @@
 mesh_deser_set_per_set.plot(res_deser_set_per_set_list[num_res * 1 + 0])
 
 ###############################################################################
-# compare 4th result at 6 time set:
+# compare ENF at 6 time set:
+position_ENF = result_names_on_all_time_steps.index("result_ENF")
 to_nodal_op = dpf.operators.averaging.to_nodal_fc()
 
-fc_all_steps_first_step_first_res = res_deser_all_times_list[3].get_field_by_time_id(6)  # set 6
+fc_all_steps_first_step_first_res = res_deser_all_times_list[position_ENF].get_field_by_time_id(6)  # set 6
 mesh_deser_all_times.plot(
     dpf.operators.averaging.to_nodal(fc_all_steps_first_step_first_res).outputs.field()
 )
 
 mesh_deser_set_per_set.plot(
-    dpf.operators.averaging.to_nodal(res_deser_set_per_set_list[num_res * 5 + 3]).outputs.field()
+    dpf.operators.averaging.to_nodal(res_deser_set_per_set_list[num_res * 5 + position_ENF]).outputs.field()
 )