def test_message_escaping(self, message, expected_message_html):
        """
        Verifies that a user message is escaped correctly.
        """
        PageLevelMessages.register_user_message(self.request, UserMessageType.INFO, message)
        messages = list(PageLevelMessages.user_messages(self.request))
        assert len(messages) == 1
        assert messages[0].message_html == expected_message_html