def test_column_of_an_alias(self):
     assert (
         get_mapper(sa.orm.aliased(self.Building.__table__).c.id) ==
         sa.inspect(self.Building)
     )

 def test_table_alias(self):
     alias = sa.orm.aliased(self.Building.__table__)
     assert (
         get_mapper(alias) ==
         sa.inspect(self.Building)
     )

 def test_column(self):
     assert (
         get_mapper(self.Building.__table__.c.id) ==
         sa.inspect(self.Building)
     )

 def test_class_alias(self):
     assert (
         get_mapper(sa.orm.aliased(self.Building)) ==
         sa.inspect(self.Building)
     )

 def test_instrumented_attribute(self):
     assert (
         get_mapper(self.Building.id) == sa.inspect(self.Building)
     )

 def test_table(self, Building):
     with pytest.raises(ValueError):
         get_mapper(Building.__table__)

 def test_mapper(self):
     assert (
         get_mapper(self.Building.__mapper__) ==
         sa.inspect(self.Building)
     )

 def test_table(self):
     assert get_mapper(self.Building.__table__) == sa.inspect(self.Building)

 def test_mapper_entity_with_mapper(self, session, Building):
     entity = session.query(Building.__mapper__)._entities[0]
     assert (
         get_mapper(entity) ==
         sa.inspect(Building)
     )

 def test_declarative_class(self, Building):
     assert (
         get_mapper(Building) ==
         sa.inspect(Building)
     )

 def test_table_alias(self, building):
     alias = sa.orm.aliased(building)
     with pytest.raises(ValueError):
         get_mapper(alias)

 def test_mapper_entity_with_class(self):
     entity = self.session.query(self.Building)._entities[0]
     assert (
         get_mapper(entity) ==
         sa.inspect(self.Building)
     )

 def test_declarative_object(self):
     assert (
         get_mapper(self.Building()) ==
         sa.inspect(self.Building)
     )

 def test_column_entity(self):
     query = self.session.query(self.Building.id)
     assert get_mapper(query._entities[0]) == sa.inspect(self.Building)

 def test_declarative_class(self):
     assert get_mapper(self.Building) == sa.inspect(self.Building)