Django one time setup in test

test_one_setup_django.py

from django.test import TestCase
from django.contrib.auth.models import User
from payments.models import Customer

# To allow test setup run only one time these workaround can be used
class CustomerModelTest(TestCase):

    @classmethod
    def setUpClass(cls):
        cls.user = User.objects.create_user(username="test@est.com",
                                    email="test@test.com",
                                    password="12345",
                                    first_name="Test",
                                    last_name="Test")   
        cls.customer = Customer.create(cls.user)      

    def test_something(self):
        pass
    
    def test_other_thing(self):
        pass
    ##Create user is only called one time