TST: disable get_components_yahoo tests as unreliable

Author: jreback

pandas/io/tests/test_data.py

@@ -150,12 +150,16 @@ def test_get_quote_stringlist(self):
 
     @network
     def test_get_components_dow_jones(self):
+        raise nose.SkipTest('unreliable test, receive partial components back for dow_jones')
+
         df = web.get_components_yahoo('^DJI') #Dow Jones
         assert isinstance(df, pd.DataFrame)
         self.assertEqual(len(df), 30)
 
     @network
     def test_get_components_dax(self):
+        raise nose.SkipTest('unreliable test, receive partial components back for dax')
+
         df = web.get_components_yahoo('^GDAXI') #DAX
         assert isinstance(df, pd.DataFrame)
         self.assertEqual(len(df), 30)
@@ -166,6 +170,8 @@ def test_get_components_dax(self):
     def test_get_components_nasdaq_100(self):
         """as of 7/12/13 the conditional will test false because the link is
         invalid"""
+        raise nose.SkipTest('unreliable test, receive partial components back for nasdaq_100')
+
         df = web.get_components_yahoo('^NDX') #NASDAQ-100
         assert isinstance(df, pd.DataFrame)