test_pandas.py 文件源码

def test_date_format_series(self):
        def test_w_date(date, date_unit=None):
            ts = Series(Timestamp(date), index=self.ts.index)
            ts.ix[1] = pd.NaT
            ts.ix[5] = pd.NaT
            if date_unit:
                json = ts.to_json(date_format='iso', date_unit=date_unit)
            else:
                json = ts.to_json(date_format='iso')
            result = read_json(json, typ='series')
            assert_series_equal(result, ts)

        test_w_date('20130101 20:43:42.123')
        test_w_date('20130101 20:43:42', date_unit='s')
        test_w_date('20130101 20:43:42.123', date_unit='ms')
        test_w_date('20130101 20:43:42.123456', date_unit='us')
        test_w_date('20130101 20:43:42.123456789', date_unit='ns')

        ts = Series(Timestamp('20130101 20:43:42.123'), index=self.ts.index)
        self.assertRaises(ValueError, ts.to_json, date_format='iso',
                          date_unit='foo')