fix test spectrum

HySoP/hysop/operator/tests/test_spectrum.py

@@ -26,19 +26,8 @@ def test_spectrum():
     op.setup()
     topo = op.discreteFields[field].topology
     field.initialize(topo=topo)
-
-    prt = HDF_Writer(variables={field: topo, },
-                     io_params=IOParams(frequency=1,
-                                        filename='field',
-                                        fileformat=HDF5))
-    prt.discretize()
-    prt.setup()
-
     simu = Simulation(nbIter=1)
     simu.initialize()
     op.apply(simu)
-    prt.apply(simu)
 
 
-if __name__ == '__main__':
-    test_spectrum()