Refactor tests and move to correct file

Author: sahildua2305

pandas/tests/frame/test_timeseries.py

@@ -325,19 +325,12 @@ def test_asfreq_datetimeindex(self):
 
     def test_asfreq_datetimeindex_empty_series(self):
         # GH 14340
-
-        # DatetimeIndex
-        expected = Series(index=pd.DatetimeIndex(["2016-09-29 11:00"])).asfreq('H')
+        expected = Series(index=pd.DatetimeIndex(
+            ["2016-09-29 11:00"])).asfreq('H')
         result = Series(index=pd.DatetimeIndex(["2016-09-29 11:00"]),
                         data=[3]).asfreq('H')
         self.assert_index_equal(expected.index, result.index)
 
-        # PeriodIndex
-        expected = Series(index=pd.PeriodIndex(['2011-1', '2011-2', '2011-3'], freq='M')).asfreq('M')
-        result = Series(index=pd.PeriodIndex(['2011-1', '2011-2', '2011-3'], freq='M'),
-                        data=[3]).asfreq('M')
-        self.assert_index_equal(expected.index, result.index)
-
     def test_first_last_valid(self):
         N = len(self.frame.index)
         mat = randn(N)

pandas/tseries/tests/test_period.py

@@ -1596,6 +1596,14 @@ def test_asfreq_mult(self):
             self.assertEqual(result.ordinal, expected.ordinal)
             self.assertEqual(result.freq, expected.freq)
 
+    def test_asfreq_period_empty_series(self):
+        # GH 14340
+        expected = Series(index=pd.PeriodIndex(['2011-1', '2011-2', '2011-3'],
+                          freq='M')).asfreq('M')
+        result = Series(index=pd.PeriodIndex(['2011-1', '2011-2', '2011-3'],
+                        freq='M'), data=[3]).asfreq('M')
+        self.assert_index_equal(expected.index, result.index)
+
     def test_asfreq_combined(self):
         # normal freq to combined freq
         p = Period('2007', freq='H')