# -*- coding: utf-8 -*-
import pytest
from pyleecan.Classes.LamSlotMag import LamSlotMag
from pyleecan.Classes.SlotMPolar import SlotMPolar
from pyleecan.Classes.MagnetType14 import MagnetType14
from numpy import pi, exp, sqrt
from pyleecan.Methods.Machine.Magnet.comp_height import comp_height
from pyleecan.Methods.Machine.Magnet.comp_surface import comp_surface
from pyleecan.Methods import ParentMissingError
Mag14_test = list()
# Internal Slot inset
lam = LamSlotMag(Rint=40e-3, Rext=90e-3, is_internal=True)
lam.slot = SlotMPolar(Zs=4, W0=0.628, H0=0.02)
lam.slot.magnet = [MagnetType14(Lmag=0.5, Hmag=0.02, Wmag=0.628, Rtop=0.04)]
Mag14_test.append({"test_obj": lam, "S_exp": 9.022e-4, "Ao": 0.628, "H_exp": 0.02})
# Internal slot surface
lam = LamSlotMag(Rint=40e-3, Rext=90e-3, is_internal=True)
lam.slot = SlotMPolar(Zs=8, W0=0.628, H0=0)
lam.slot.magnet = [MagnetType14(Lmag=0.5, Hmag=0.02, Wmag=0.628, Rtop=0.05)]
Mag14_test.append({"test_obj": lam, "S_exp": 1.1089e-3, "Ao": 0.628, "H_exp": 0.02})
# For AlmostEqual
DELTA = 1e-4
[docs]@pytest.mark.METHODS
class Test_Magnet_Type_14_meth(object):
"""unittest for MagnetType14 methods"""
[docs] @pytest.mark.parametrize("test_dict", Mag14_test)
def test_comp_surface(self, test_dict):
"""Check that the computation of the surface is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.magnet[0].comp_surface()
a = result
b = test_dict["S_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
[docs] @pytest.mark.parametrize("test_dict", Mag14_test)
def test_comp_height(self, test_dict):
"""Check that the computation of the height is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.magnet[0].comp_height()
a = result
b = test_dict["H_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
# Compare numerical and analytical results
b = comp_height(test_obj.slot.magnet[0])
msg = "Analytical: " + str(a) + " Numerical " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
[docs] @pytest.mark.parametrize("test_dict", Mag14_test)
def test_comp_angle_op(self, test_dict):
"""Check that the computation of the opening angle is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.magnet[0].comp_angle_opening()
a = result
b = test_dict["Ao"]
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
[docs] def test_build_geometry(self):
"""check that curve_list is correct"""
with pytest.raises(ParentMissingError) as context:
MagnetType14(Lmag=0.5, Hmag=0.02, Wmag=0.628, Rtop=0.04).build_geometry()
lam = LamSlotMag(Rint=40e-3, Rext=90e-3, is_internal=True)
lam.slot = SlotMPolar(Zs=4, W0=0.628, H0=0.02)
lam.slot.magnet = [MagnetType14(Lmag=0.5, Hmag=0.02, Wmag=0.125, Rtop=0.04)]
surface = lam.slot.magnet[0].build_geometry(is_simplified=True)
assert len(surface) == 1
assert surface[0].label == "MagnetRotorRadial_N_R0_T0_S0"
lam = LamSlotMag(Rint=40e-3, Rext=90e-3, is_internal=True)
lam.slot = SlotMPolar(Zs=4, W0=0.628, H0=0.01)
lam.slot.magnet = [MagnetType14(Lmag=0.5, Hmag=0.02, Wmag=0.628, Rtop=0.04)]
surface = lam.slot.magnet[0].build_geometry(is_simplified=True)
assert len(surface) == 1
assert surface[0].label == "MagnetRotorRadial_N_R0_T0_S0"
