Update tests

[pradal]

Except for inoculum problem with global variable?
src code run ok

[pradal]

It remains one error

def test_inoculum_scenario_inoculuminitial():
Lx = 3
Ly = 3
ng_ext0_abs = 20000
inoc_init_abs = 500000
inoc_init, ng_ext0 = inoculum(scenario_ino="initial_inoculum", Lx=Lx, Ly=Ly, frac_inf=1,
inoc_init_abs=inoc_init_abs, ng_ext0_abs=ng_ext0_abs)
desired_inoc_init =np.ones((Lx, Ly)) * 20000000

  np.testing.assert_allclose(desired_inoc_init, inoc_init)

E AssertionError:
E Not equal to tolerance rtol=1e-07, atol=0
E
E Mismatched elements: 9 / 9 (100%)
E Max absolute difference: 19500000.
E Max relative difference: 39.
E x: array([[20000000., 20000000., 20000000.],
E [20000000., 20000000., 20000000.],
E [20000000., 20000000., 20000000.]])
E y: array([[500000., 500000., 500000.],
E [500000., 500000., 500000.],
E [500000., 500000., 500000.]])

test_inoculum.py:28: AssertionError