test_timeseries.py 文件源码

def test_pickle(self):

        # GH4606
        p = self.round_trip_pickle(NaT)
        self.assertTrue(p is NaT)

        idx = pd.to_datetime(['2013-01-01', NaT, '2014-01-06'])
        idx_p = self.round_trip_pickle(idx)
        self.assertTrue(idx_p[0] == idx[0])
        self.assertTrue(idx_p[1] is NaT)
        self.assertTrue(idx_p[2] == idx[2])

        # GH11002
        # don't infer freq
        idx = date_range('1750-1-1', '2050-1-1', freq='7D')
        idx_p = self.round_trip_pickle(idx)
        tm.assert_index_equal(idx, idx_p)