test_timezones.py 文件源码

def test_equal_join_ensure_utc(self):
        rng = date_range('1/1/2011', periods=10, freq='H', tz='US/Eastern')
        ts = Series(np.random.randn(len(rng)), index=rng)

        ts_moscow = ts.tz_convert('Europe/Moscow')

        result = ts + ts_moscow
        self.assertIs(result.index.tz, pytz.utc)

        result = ts_moscow + ts
        self.assertIs(result.index.tz, pytz.utc)

        df = DataFrame({'a': ts})
        df_moscow = df.tz_convert('Europe/Moscow')
        result = df + df_moscow
        self.assertIs(result.index.tz, pytz.utc)

        result = df_moscow + df
        self.assertIs(result.index.tz, pytz.utc)