def test_property_attributes(): symsystem = SymbolicSystem(states, comb_explicit_rhs, alg_con=alg_con_full, output_eqns=out_eqns, coord_idxs=coord_idxs, speed_idxs=speed_idxs, bodies=bodies, loads=loads) with raises(AttributeError): symsystem.bodies = 42 with raises(AttributeError): symsystem.coordinates = 42 with raises(AttributeError): symsystem.dyn_implicit_rhs = 42 with raises(AttributeError): symsystem.comb_implicit_rhs = 42 with raises(AttributeError): symsystem.loads = 42 with raises(AttributeError): symsystem.dyn_implicit_mat = 42 with raises(AttributeError): symsystem.comb_implicit_mat = 42 with raises(AttributeError): symsystem.kin_explicit_rhs = 42 with raises(AttributeError): symsystem.comb_explicit_rhs = 42 with raises(AttributeError): symsystem.speeds = 42 with raises(AttributeError): symsystem.states = 42 with raises(AttributeError): symsystem.alg_con = 42