TST: confirming tests for pandas-dev#12348

xref pandas-dev#12348

Author: Jeff Reback <[email protected]>

Closes pandas-dev#12349 from jreback/resample_tests and squashes the following commits:

545da27 [Jeff Reback] TST: confirming tests for pandas-dev#12348

Author: jreback

doc/source/whatsnew/v0.18.0.txt

@@ -615,7 +615,7 @@ other anchored offsets like ``MonthBegin`` and ``YearBegin``.
 Resample API
 ^^^^^^^^^^^^
 
-Like the change in the window functions API :ref:`above <whatsnew_0180.enhancements.moments>`, ``.resample(...)`` is changing to have a more groupby-like API. (:issue:`11732`, :issue:`12702`, :issue:`12202`, :issue:`12332`).
+Like the change in the window functions API :ref:`above <whatsnew_0180.enhancements.moments>`, ``.resample(...)`` is changing to have a more groupby-like API. (:issue:`11732`, :issue:`12702`, :issue:`12202`, :issue:`12332`, :issue:`12348`).
 
 .. ipython:: python
 

pandas/tseries/tests/test_resample.py

@@ -938,6 +938,18 @@ def test_resample_ohlc_result(self):
         b = s.loc[:'4-14-2000'].resample('30T').ohlc()
         self.assertIsInstance(b, DataFrame)
 
+        # GH12348
+        # raising on odd period
+        rng = date_range('2013-12-30', '2014-01-07')
+        index = rng.drop([Timestamp('2014-01-01'),
+                          Timestamp('2013-12-31'),
+                          Timestamp('2014-01-04'),
+                          Timestamp('2014-01-05')])
+        df = DataFrame(data=np.arange(len(index)), index=index)
+        result = df.resample('B').mean()
+        expected = df.reindex(index=date_range(rng[0], rng[-1], freq='B'))
+        assert_frame_equal(result, expected)
+
     def test_resample_ohlc_dataframe(self):
         df = (
             pd.DataFrame({