def test_quantile_sequential(self):
        def test_impl(A):
            df = pd.DataFrame({'A': A})
            return df.A.quantile(.25)

        hpat_func = self.jit(test_impl)
        n = 1001
        A = np.arange(0, n, 1, np.float64)
        np.testing.assert_almost_equal(hpat_func(A), test_impl(A))