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.UnitConversionError):
inertial_length(4 * u.m**-2, particle='p')
with pytest.raises(ValueError):
inertial_length(-5 * u.m**-3, particle='p')
with pytest.raises(ValueError):
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).unit.is_equivalent(u.m)
assert np.isclose(inertial_length(1 * u.cm**-3).cgs.value,
5.31e5,
rtol=1e-3)
with pytest.warns(u.UnitsWarning):
inertial_length(5)
with pytest.raises(u.UnitConversionError):
inertial_length(5 * u.m)
with pytest.raises(ValueError):
inertial_length(-5 * u.m**-3)
with pytest.warns(u.UnitsWarning):
assert inertial_length(1e19) == inertial_length(1e19 * u.m**-3)
assert_can_handle_nparray(inertial_length)
def time_inertial_length(self):
inertial_length(5 * u.m ** -3,
'He+')