changed the test, added decorator remote_data

Author: vilhelmp

astroquery/nasa_ads/tests/test_nasaads.py

@@ -1,6 +1,7 @@
 from ... import nasa_ads
-from astropy.tests.helper import pytest
+from astropy.tests.helper import remote_data
 
+@remote_data
 def test_simple():
     x = nasa_ads.ADS.query_simple('^Persson Origin of water around deeply embedded low-mass protostars')
     assert x[-1]['authors'][0] == 'Persson, M. V.'