包含“ManyToManyField”作为用户的django模型的单元测试

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

class MyModelTestCase(TestCase):
    def setUp(self):
        # 在每个测试方法运行之前执行的设置代码
        self.user1 = User.objects.create(username='user1')
        self.user2 = User.objects.create(username='user2')
        self.user3 = User.objects.create(username='user3')
    
    def test_add_users(self):
        # 测试向ManyToManyField添加用户
        my_model = MyModel.objects.create(name='example')
        my_model.users.add(self.user1, self.user2)
        self.assertEqual(my_model.users.count(), 2)
    
    def test_remove_user(self):
        # 测试从ManyToManyField移除用户
        my_model = MyModel.objects.create(name='example')
        my_model.users.add(self.user1, self.user2, self.user3)
        my_model.users.remove(self.user2)
        self.assertEqual(my_model.users.count(), 2)
    
    # 更多的测试方法...