def METHOD_NAME(self):
    p_n = 30
    p_frac1 = 1 << 22
    n, frac1, frac2, mod2 = calculate_pll(
        (p_n + p_frac1 / self.mod1) * self.f_pfd, self.f_pfd
    )
    self.assertEqual(p_n, n)
    self.assertEqual(p_frac1, frac1)
    self.assertEqual(frac2, (0, 0))
    self.assertNotEqual(mod2, (0, 0))