def test_str_split_filter(self):
        def test_impl(df):
            B = df.A.str.split(',')
            df2 = pd.DataFrame({'B': B})
            return df2[df2.B.str.len() > 1]

        df = pd.DataFrame({'A': ['AB,CC', 'C,ABB,D', 'G', '', 'g,f']})
        hpat_func = self.jit(test_impl)
        pd.testing.assert_frame_equal(
            hpat_func(df), test_impl(df).reset_index(drop=True))