def test_lw_1darray(power):
    calculated = lw(power)
    real = np.array([90, 70, 50])
    assert_array_almost_equal(calculated, real)
def test_lw_1darray_wref(power):
    calculated = lw(power, Wref=1e-11)
    real = np.array([80, 60, 40])
    assert_array_almost_equal(calculated, real)
def test_lw_int(power):
    calculated = lw(power[0])
    real = 90
    assert calculated == real