def METHOD_NAME(self):
    """Verify that the deleted_by_source column is now gone, and
    otherwise the table has the expected number of rows.
    """
    with self.app.app_context():
        sql = "SELECT * FROM replies"
        replies = db.engine.execute(text(sql)).fetchall()
        for reply in replies:
            try:
                # This should produce an exception, as the column (should)
                # be gone.
                assert reply["uuid"] is None
            except NoSuchColumnError:
                pass
        assert len(replies) == self.JOURNO_NUM - 1