Move and refactor unit test

Author: ThomasKluiters

pandas/tests/indexes/datetimes/test_datetime.py

@@ -433,10 +433,3 @@ def test_asarray_tz_aware(self):
             result = np.asarray(idx, dtype=object)
 
         tm.assert_numpy_array_equal(result, expected)
-
-    def test_apply_on_series(self):
-        # GH 25959
-        # Calling apply on a localized time series should not cause an error
-        s = tm.makeTimeSeries()
-        s = s.tz_localize('UTC')
-        pd.Series(s.index).apply(lambda x: pd.Series([1, 2]))

pandas/tests/resample/test_datetime_index.py

@@ -1488,3 +1488,13 @@ def test_get_timestamp_range_edges(first, last, offset,
     result = _get_timestamp_range_edges(first, last, offset)
     expected = (exp_first, exp_last)
     assert result == expected
+
+
+def test_apply_on_series():
+    # GH 25959
+    # Calling apply on a localized time series should not cause an error
+    index = pd.DatetimeIndex([1478064900001000000, 1480037118776792000])\
+        .tz_localize('UTC')
+    result = pd.Series(index).apply(lambda x: pd.Series([1, 2]))
+    expected = pd.DataFrame([[1, 2], [1, 2]])
+    assert_frame_equal(result, expected)