TST: Add test for get_data_google dtypes

Author: davidastephens

doc/source/whatsnew/v0.15.2.txt

@@ -63,3 +63,4 @@ Bug Fixes
 - Bug in slicing a multi-index with an empty list and at least one boolean indexer (:issue:`8781`)
 - ``io.data.Options`` now raises ``RemoteDataError`` when no expiry dates are available from Yahoo (:issue:`8761`).
 - ``Timedelta`` kwargs may now be numpy ints and floats (:issue:`8757`).
+- Bug where ``get_data_google``returned object dtypes (:issue:`3995`)

pandas/io/tests/test_data.py

@@ -117,6 +117,14 @@ def test_get_multi2(self):
                 self.assertEqual((4, 3), result.shape)
                 assert_n_failed_equals_n_null_columns(w, result)
 
+    def test_dtypes(self):
+        #GH3995
+        data = web.get_data_google('MSFT', 'JAN-01-12', 'JAN-31-12')
+        assert np.issubdtype(data.Open.dtype, np.number)
+        assert np.issubdtype(data.Close.dtype, np.number)
+        assert np.issubdtype(data.Low.dtype, np.number)
+        assert np.issubdtype(data.High.dtype, np.number)
+        assert np.issubdtype(data.Volume.dtype, np.number)
 
 class TestYahoo(tm.TestCase):
     @classmethod