def test_expand_multiple_indexed(self):
m = ConcreteModel()
m.x = Var([1, 2], domain=Binary)
m.y = Var(bounds=(1, 3))
m.CON = Connector()
m.CON.add(m.x)
m.CON.add(m.y)
m.a1 = Var([1, 2])
m.a2 = Var([1, 2])
m.b1 = Var()
m.b2 = Var()
m.ECON2 = Connector()
m.ECON2.add(m.a1, 'x')
m.ECON2.add(m.b1, 'y')
m.ECON1 = Connector()
m.ECON1.add(m.a2, 'x')
m.ECON1.add(m.b2, 'y')
# 2 constraints: one has a connector, the other doesn't. The
# former should be deactivated and expanded, the latter should
# be left untouched.
m.c = Constraint(expr=m.CON == m.ECON1)
m.d = Constraint(expr=m.ECON2 == m.ECON1)
m.nocon = Constraint(expr=m.x[1] == 2)
self.assertEqual(len(list(m.component_objects(Constraint))), 3)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 3)
TransformationFactory('core.expand_connectors').apply_to(m)
#m.pprint()
self.assertEqual(len(list(m.component_objects(Constraint))), 5)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 9)
self.assertTrue(m.nocon.active)
self.assertFalse(m.c.active)
self.assertTrue(m.component('c.expanded').active)
self.assertFalse(m.d.active)
self.assertTrue(m.component('d.expanded').active)
os = StringIO()
m.component('c.expanded').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""c.expanded : Size=3, Index='c.expanded_index', Active=True
Key : Lower : Body : Upper : Active
1 : 0.0 : x[1] - a2[1] : 0.0 : True
2 : 0.0 : x[2] - a2[2] : 0.0 : True
3 : 0.0 : y - b2 : 0.0 : True
""")
os = StringIO()
m.component('d.expanded').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""d.expanded : Size=3, Index='d.expanded_index', Active=True
Key : Lower : Body : Upper : Active
1 : 0.0 : a1[1] - a2[1] : 0.0 : True
2 : 0.0 : a1[2] - a2[2] : 0.0 : True
3 : 0.0 : b1 - b2 : 0.0 : True
""")
def test_expand_empty_expression(self):
m = ConcreteModel()
m.x = Var()
m.y = Var()
m.CON = Connector()
m.CON.add(-m.x, 'x')
m.CON.add(1 + m.y, 'y')
m.ECON = Connector()
# 2 constraints: one has a connector, the other doesn't. The
# former should be deactivated and expanded, the latter should
# be left untouched.
m.c = Constraint(expr=m.CON == m.ECON)
m.nocon = Constraint(expr=m.x == 2)
self.assertEqual(len(list(m.component_objects(Constraint))), 2)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 2)
TransformationFactory('core.expand_connectors').apply_to(m)
self.assertEqual(len(list(m.component_objects(Constraint))), 3)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 4)
self.assertTrue(m.nocon.active)
self.assertFalse(m.c.active)
self.assertTrue(m.component('c.expanded').active)
os = StringIO()
m.component('c.expanded').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""c.expanded : Size=2, Index='c.expanded_index', Active=True
Key : Lower : Body : Upper : Active
1 : 0.0 : - x - 'ECON.auto.x' : 0.0 : True
2 : 0.0 : 1 + y - 'ECON.auto.y' : 0.0 : True
""")
def test_expand_indexed(self):
m = ConcreteModel()
m.x = Var([1, 2])
m.y = Var()
m.CON = Connector()
m.CON.add(m.x)
m.CON.add(m.y)
# 2 constraints: one has a connector, the other doesn't. The
# former should be deactivated and expanded, the latter should
# be left untouched.
m.c = Constraint(expr=m.CON == 1)
m.nocon = Constraint(expr=m.x[1] == 2)
self.assertEqual(len(list(m.component_objects(Constraint))), 2)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 2)
TransformationFactory('core.expand_connectors').apply_to(m)
self.assertEqual(len(list(m.component_objects(Constraint))), 3)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 5)
self.assertTrue(m.nocon.active)
self.assertFalse(m.c.active)
self.assertTrue(m.component('c.expanded').active)
os = StringIO()
m.component('c.expanded').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""c.expanded : Size=3, Index='c.expanded_index', Active=True
Key : Lower : Body : Upper : Active
1 : 1.0 : x[1] : 1.0 : True
2 : 1.0 : x[2] : 1.0 : True
3 : 1.0 : y : 1.0 : True
""")
def test_expand_empty_indexed(self):
m = ConcreteModel()
m.x = Var([1, 2], domain=Binary)
m.y = Var(bounds=(1, 3))
m.CON = Connector()
m.CON.add(m.x)
m.CON.add(m.y)
m.ECON = Connector()
# 2 constraints: one has a connector, the other doesn't. The
# former should be deactivated and expanded, the latter should
# be left untouched.
m.c = Constraint(expr=m.CON == m.ECON)
m.nocon = Constraint(expr=m.x[1] == 2)
self.assertEqual(len(list(m.component_objects(Constraint))), 2)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 2)
TransformationFactory('core.expand_connectors').apply_to(m)
#m.pprint()
self.assertEqual(len(list(m.component_objects(Constraint))), 3)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 5)
self.assertTrue(m.nocon.active)
self.assertFalse(m.c.active)
self.assertTrue(m.component('c.expanded').active)
self.assertIs(m.x[1].domain, m.component('ECON.auto.x')[1].domain)
self.assertIs(m.x[2].domain, m.component('ECON.auto.x')[2].domain)
self.assertIs(m.y.domain, m.component('ECON.auto.y').domain)
self.assertEqual(m.x[1].bounds, m.component('ECON.auto.x')[1].bounds)
self.assertEqual(m.x[2].bounds, m.component('ECON.auto.x')[2].bounds)
self.assertEqual(m.y.bounds, m.component('ECON.auto.y').bounds)
os = StringIO()
m.component('c.expanded').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""c.expanded : Size=3, Index='c.expanded_index', Active=True
Key : Lower : Body : Upper : Active
1 : 0.0 : x[1] - 'ECON.auto.x'[1] : 0.0 : True
2 : 0.0 : x[2] - 'ECON.auto.x'[2] : 0.0 : True
3 : 0.0 : y - 'ECON.auto.y' : 0.0 : True
""")
def test_varlist_aggregator(self):
m = ConcreteModel()
m.flow = VarList()
m.phase = Var(bounds=(1, 3))
m.CON = Connector()
m.CON.add(m.flow, aggregate=lambda m, v: sum(v[i] for i in v) == 0)
m.CON.add(m.phase)
m.ECON2 = Connector()
m.ECON1 = Connector()
# 2 constraints: one has a connector, the other doesn't. The
# former should be deactivated and expanded, the latter should
# be left untouched.
m.c = Constraint(expr=m.CON == m.ECON1)
m.d = Constraint(expr=m.ECON2 == m.CON)
self.assertEqual(len(list(m.component_objects(Constraint))), 2)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 2)
TransformationFactory('core.expand_connectors').apply_to(m)
#m.pprint()
self.assertEqual(len(list(m.component_objects(Constraint))), 5)
self.assertEqual(len(list(m.component_data_objects(Constraint))), 7)
self.assertFalse(m.c.active)
self.assertTrue(m.component('c.expanded').active)
self.assertFalse(m.d.active)
self.assertTrue(m.component('d.expanded').active)
self.assertEqual(len(m.flow), 2)
os = StringIO()
m.component('c.expanded').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""c.expanded : Size=2, Index='c.expanded_index', Active=True
Key : Lower : Body : Upper : Active
1 : 0.0 : flow[1] - 'ECON1.auto.flow' : 0.0 : True
2 : 0.0 : phase - 'ECON1.auto.phase' : 0.0 : True
""")
os = StringIO()
m.component('d.expanded').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""d.expanded : Size=2, Index='d.expanded_index', Active=True
Key : Lower : Body : Upper : Active
1 : 0.0 : 'ECON2.auto.flow' - flow[2] : 0.0 : True
2 : 0.0 : 'ECON2.auto.phase' - phase : 0.0 : True
""")
os = StringIO()
m.component('CON.flow.aggregate').pprint(ostream=os)
self.assertEqual(
os.getvalue(),
"""CON.flow.aggregate : Size=1, Index=None, Active=True
Key : Lower : Body : Upper : Active
None : 0.0 : flow[1] + flow[2] : 0.0 : True
""")
os = StringIO()
m.CON.pprint(ostream=os)
self.assertEqual(
os.getvalue(), """CON : Size=1, Index=None
Key : Name : Size : Variable
None : flow : * : flow
: phase : 1 : phase
""")
