Method _test_instance_guards

test/orm/test_session.py:2543–2602

(self, user_arg)

        )

    def _test_instance_guards(self, user_arg):
        watchdog = set()

        def x_raises_(obj, method, *args, **kw):
            watchdog.add(method)
            callable_ = getattr(obj, method)
            assert_raises(
                sa.orm.exc.UnmappedInstanceError, callable_, *args, **kw
            )

        def raises_(method, *args, **kw):
            x_raises_(fixture_session(), method, *args, **kw)

        for name in [
            "__contains__",
            "is_modified",
            "merge",
            "refresh",
            "add",
            "delete",
            "expire",
            "expunge",
            "enable_relationship_loading",
        ]:
            raises_(name, user_arg)

        for name in ["add_all", "merge_all", "delete_all"]:
            raises_(name, (user_arg,))

        # flush will no-op without something in the unit of work
        def _():
            class OK:
                pass

            self._map_it(OK)

            s = fixture_session()
            s.add(OK())
            with assertions.expect_deprecated(
                "The `objects` parameter of `Session.flush` is deprecated"
            ):
                x_raises_(s, "flush", objects=(user_arg,))

        _()

        instance_methods = (
            self._public_session_methods()
            - self._class_methods
            - {
                "bulk_update_mappings",
                "bulk_insert_mappings",
                "bulk_save_objects",
            }
        )

        eq_(
            watchdog,
            instance_methods,