def test_leitura_campo_num_int(self):
        self.assertEqual(self.header_arquivo.controle_banco, 341)
def test_impl():
            A = np.array([1., 2., 3.])
            A[0] = np.nan
            df = pd.DataFrame({'A': A})
            B = df.A.fillna(5.0)
            return B.sum()