def METHOD_NAME():
    m = ConcreteModel()
    m.db = Database()
    m.fs = FlowsheetBlock(dynamic=False)
    m.fs.params = WaterParameterBlock(solute_list=["sulfur", "toc", "tss"])
    with pytest.raises(
        ConfigurationError,
        match="fs.unit - zero-order chemical addition "
        "operations require the process_subtype configuration "
        "argument to be set",
    ):
        m.fs.unit = ChemicalAdditionZO(property_package=m.fs.params, database=m.db)