diff --git a/pyomo/contrib/appsi/solvers/tests/test_persistent_solvers.py b/pyomo/contrib/appsi/solvers/tests/test_persistent_solvers.py index af615d1ed8b..ae189aca701 100644 --- a/pyomo/contrib/appsi/solvers/tests/test_persistent_solvers.py +++ b/pyomo/contrib/appsi/solvers/tests/test_persistent_solvers.py @@ -918,6 +918,27 @@ def test_bounds_with_params( res = opt.solve(m) self.assertAlmostEqual(m.y.value, 3) + @parameterized.expand(input=_load_tests(all_solvers, only_child_vars_options)) + def test_bounds_with_immutable_params( + self, name: str, opt_class: Type[PersistentSolver], only_child_vars + ): + # this test is for issue #2574 + opt: PersistentSolver = opt_class(only_child_vars=only_child_vars) + if not opt.available(): + raise unittest.SkipTest + m = pe.ConcreteModel() + m.p = pe.Param(mutable=False, initialize=1) + m.q = pe.Param([1, 2], mutable=False, initialize=10) + m.y = pe.Var() + m.y.setlb(m.p) + m.y.setub(m.q[1]) + m.obj = pe.Objective(expr=m.y) + res = opt.solve(m) + self.assertAlmostEqual(m.y.value, 1) + m.y.setlb(m.q[2]) + res = opt.solve(m) + self.assertAlmostEqual(m.y.value, 10) + @parameterized.expand(input=_load_tests(all_solvers, only_child_vars_options)) def test_solution_loader( self, name: str, opt_class: Type[PersistentSolver], only_child_vars