def test__nondim_tc_e_ji_held(hall, Z, field_orientation, expected):
"""test _nondim_tc_e_ji_held function"""
kappa_hat = _nondim_tc_e_ji_held(hall, Z, field_orientation)
kappa_check = expected
testTrue = np.isclose(kappa_hat, kappa_check, rtol=2e-2)
errStr = f"Kappa hat from ji-held should be {kappa_check} and not {kappa_hat}."
assert testTrue, errStr
def test__nondim_tc_e_spitzer(Z):
"""test _nondim_tc_e_spitzer function"""
kappa = _nondim_tc_e_spitzer(Z)
if Z == 1:
kappa_check = 3.203
rtol = 1e-3
elif Z in [2, 4]:
kappa_check = _nondim_tc_e_braginskii(0, Z, "par")
rtol = 2e-2
elif Z == 16:
kappa_check = _nondim_tc_e_ji_held(0, Z, "par")
rtol = 2e-2
elif Z == np.inf:
kappa_check = _nondim_tc_e_ji_held(0, 1e6, "par")
rtol = 2e-2
assert np.isclose(kappa, kappa_check, rtol=rtol)
def test_cross_vs_ji_held(self, Z):
"""cross should roughly agree with ji-held"""
kappa_e_hat_cross_brag = _nondim_tc_e_braginskii(self.big_hall, Z, "cross")
kappa_e_hat_cross_jh = _nondim_tc_e_ji_held(self.big_hall, Z, "cross")
testTrue = np.isclose(kappa_e_hat_cross_brag, kappa_e_hat_cross_jh, rtol=2e-2)
errStr = (
f"braginskii cross {kappa_e_hat_cross_brag} should agree "
f"with ji-held {kappa_e_hat_cross_jh}."
)
assert testTrue, errStr
