Method _should_check_constraints

django/test/testcases.py:1502–1507

(self, connection)

            self._rollback_atomics(self.atomics)

    def _should_check_constraints(self, connection):
        return (
            connection.features.can_defer_constraint_checks
            and not connection.needs_rollback
            and connection.is_usable()
        )

    @classmethod
    @contextmanager