test_missing.py 文件源码

def test_isnull_for_inf(self):
        s = Series(['a', np.inf, np.nan, 1.0])
        with pd.option_context('mode.use_inf_as_null', True):
            r = s.isnull()
            dr = s.dropna()
        e = Series([False, True, True, False])
        de = Series(['a', 1.0], index=[0, 3])
        tm.assert_series_equal(r, e)
        tm.assert_series_equal(dr, de)