TST BUG: cdms mocked example raises EmptyResponseError

[bsipocz]

There is a weird thing with the tests, that if one runs the patched example, it returns an EmptyResponseError. I wonder if we could use examples, even for the local tests that should work when actually querying the server?

>>> from astroquery.linelists.cdms import CDMS
>>> from astropy import units as u
>>> tbl = CDMS.query_lines(min_frequency=100 * u.GHz,
...                                max_frequency=1000 * u.GHz,
...                                min_strength=-500,
...                                molecule="CO")
EmptyResponseError                        Traceback (most recent call last)
Cell In[1], line 3
      1 from astroquery.linelists.cdms import CDMS
      2 from astropy import units as u
----> 3 tbl = CDMS.query_lines(min_frequency=100 * u.GHz,
      4                                max_frequency=1000 * u.GHz,
      5                                min_strength=-500,
      6                                molecule="CO")

File ~/munka/devel/astroquery/astroquery/utils/class_or_instance.py:25, in class_or_instance.__get__.<locals>.f(*args, **kwds)
     23 def f(*args, **kwds):
     24     if obj is not None:
---> 25         return self.fn(obj, *args, **kwds)
     26     else:
     27         return self.fn(cls, *args, **kwds)

File ~/munka/devel/astroquery/astroquery/utils/process_asyncs.py:26, in async_to_sync.<locals>.create_method.<locals>.newmethod(self, *args, **kwargs)
     22 @class_or_instance
     23 def newmethod(self, *args, **kwargs):
     24     verbose = kwargs.pop('verbose', False)
---> 26     response = getattr(self, async_method_name)(*args, **kwargs)
     27     if kwargs.get('get_query_payload') or kwargs.get('field_help'):
     28         return response

File ~/munka/devel/astroquery/astroquery/linelists/cdms/core.py:165, in CDMSClass.query_lines_async(self, min_frequency, max_frequency, min_strength, molecule, temperature_for_intensity, flags, parse_name_locally, get_query_payload, cache)
    163         break
    164 if not ok:
--> 165     raise EmptyResponseError("Did not find table in response")
    167 baseurl = self.URL.split('cgi-bin')[0]
    168 fullurl = f'{baseurl}/{url}'

EmptyResponseError: Did not find table in response