test_merge.py 文件源码

def test_concat_timedelta64_block(self):
        from pandas import to_timedelta

        rng = to_timedelta(np.arange(10), unit='s')

        df = DataFrame({'time': rng})

        result = concat([df, df])
        self.assertTrue((result.iloc[:10]['time'] == rng).all())
        self.assertTrue((result.iloc[10:]['time'] == rng).all())