Merge pull request pandas-dev#3227 from hayd/GH2753

TST add regression test for GH2753

Author: hayd

RELEASE.rst

@@ -293,6 +293,7 @@ pandas 0.11.0
 .. _GH2781: https://github.com/pydata/pandas/issues/2781
 .. _GH2787: https://github.com/pydata/pandas/issues/2787
 .. _GH2437: https://github.com/pydata/pandas/issues/2437
+.. _GH2753: https://github.com/pydata/pandas/issues/2753
 .. _GH2793: https://github.com/pydata/pandas/issues/2793
 .. _GH2795: https://github.com/pydata/pandas/issues/2795
 .. _GH2797: https://github.com/pydata/pandas/issues/2797

pandas/tseries/tests/test_resample.py

@@ -4,7 +4,7 @@
 
 import numpy as np
 
-from pandas import Series, TimeSeries, DataFrame, Panel, isnull, notnull
+from pandas import Series, TimeSeries, DataFrame, Panel, isnull, notnull, Timestamp
 
 from pandas.tseries.index import date_range
 from pandas.tseries.offsets import Minute, BDay
@@ -934,6 +934,14 @@ def test_resample_weekly_bug_1726(self):
         # it works!
         df.resample('W-MON', how='first', closed='left', label='left')
 
+    def test_resample_bms_2752(self):
+        # GH2753
+        foo = pd.Series(index=pd.bdate_range('20000101','20000201'))
+        res1 = foo.resample("BMS")
+        res2 = foo.resample("BMS").resample("B")
+        self.assertEqual(res1.index[0], Timestamp('20000103'))
+        self.assertEqual(res1.index[0], res2.index[0])
+
     # def test_monthly_convention_span(self):
     #     rng = period_range('2000-01', periods=3, freq='M')
     #     ts = Series(np.arange(3), index=rng)