Method mapping_fixture

test/aaa_profiling/test_misc.py:60–101

(cls)

    @testing.fixture(scope="class")
    @classmethod
    def mapping_fixture(cls):
        # note in order to work nicely with "fixture" we are emerging
        # a whole new model of setup/teardown, since pytest "fixture"
        # sort of purposely works badly with setup/teardown

        registry = sqlalchemy.orm.registry()

        metadata = MetaData()
        parent = Table(
            "parent",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("data", String(20)),
        )
        child = Table(
            "child",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("data", String(20)),
            Column(
                "parent_id", Integer, ForeignKey("parent.id"), nullable=False
            ),
        )

        class Parent(testing.entities.BasicEntity):
            pass

        class Child(testing.entities.BasicEntity):
            pass

        registry.map_imperatively(
            Parent,
            parent,
            properties={"children": relationship(Child, backref="parent")},
        )
        registry.map_imperatively(Child, child)

        registry.configure()

        yield Parent, Child

        registry.dispose()

    @testing.fixture(scope="function")
    def stmt_fixture_one(self, mapping_fixture):