def calculate_inertial_length(form):
n = form['n']
p = form['particle']
n_quantity = u.Quantity(n, u.Unit(form['unitsN']))
sum = pfp.inertial_length(n_quantity, p)
return sum
def calculate_inertial_length(form):
r''' Returns
--------
Quantity
Inertial length in meters (m)
Parameters
----------
`form`: The calculator form from the HTML page where the user enters data for calculation.
'''
n = form['n'] # Particle number density
p = form['particle'] # Particle
u1 = form['unitsN']
if n == "" or u1 == 'select':
return -1
n_quantity = u.Quantity(n, u.Unit(u1))
sum = pfp.inertial_length(n_quantity, p)
return sum
def test_inertial_length():
r"""Test the inertial_length function in parameters.py."""
assert inertial_length(n_i, particle="p").unit.is_equivalent(u.m)
assert np.isclose(inertial_length(mu * u.cm**-3, particle="p").cgs.value,
2.28e7,
rtol=0.01)
inertial_length_electron_plus = inertial_length(5.351 * u.m**-3,
particle="e+")
assert inertial_length_electron_plus == inertial_length(5.351 * u.m**-3,
particle="e")
assert inertial_length(n_i, particle="p") == inertial_length(n_i,
particle="p")
with pytest.warns(u.UnitsWarning):
inertial_length(4, particle="p")
with pytest.raises(u.UnitTypeError):
inertial_length(4 * u.m**-2, particle="p")
with pytest.raises(ValueError):
inertial_length(-5 * u.m**-3, particle="p")
with pytest.raises(InvalidParticleError):
inertial_length(n_i, particle=-135)
with pytest.warns(u.UnitsWarning):
inertial_length_no_units = inertial_length(1e19, particle="p")
assert inertial_length_no_units == inertial_length(1e19 * u.m**-3,
particle="p")
assert inertial_length(n_e, "e-").unit.is_equivalent(u.m)
assert np.isclose(inertial_length(1 * u.cm**-3, "e-").cgs.value,
5.31e5,
rtol=1e-3)
with pytest.warns(u.UnitsWarning):
inertial_length(5, "e-")
with pytest.raises(u.UnitTypeError):
inertial_length(5 * u.m, "e-")
with pytest.raises(ValueError):
inertial_length(-5 * u.m**-3, "e-")
with pytest.warns(u.UnitsWarning):
assert inertial_length(1e19,
"e-") == inertial_length(1e19 * u.m**-3, "e-")
assert_can_handle_nparray(inertial_length)
def time_inertial_length(self):
inertial_length(5 * u.m**-3, 'He+')