def METHOD_NAME(self):
    m = ConcreteModel()
    m.d1 = Disjunct()
    m.d2 = Disjunct()
    m.d = Disjunction(expr=[m.d1, m.d2])
    m.d1.binary_indicator_var.domain = NonNegativeReals
    m.d2.binary_indicator_var.domain = NonNegativeReals
    m.d1.binary_indicator_var.set_value(0.5)
    m.d2.binary_indicator_var.set_value(0.5)
    with self.assertRaisesRegex(
        GDP_Error,
        "The value of the indicator_var of "
        "Disjunct 'd1' is None. All indicator_vars "
        "must have values before calling "
        "'fix_disjuncts'.",
    ):
        TransformationFactory('gdp.fix_disjuncts').apply_to(m)