如何在运行时创建Case()？

import unittest

class MyTestCase(unittest.TestCase):
    def create_dynamic_case(self, test_name, expected_result):
        # 创建一个新的Case()对象
        dynamic_case = self.__class__('test_dynamic_case')
        
        # 设置Case()对象的属性和数据
        dynamic_case.test_name = test_name
        dynamic_case.expected_result = expected_result
        
        # 将Case()对象添加到测试套件中
        self.suite.addTest(dynamic_case)
    
    def test_dynamic_case(self):
        # 执行测试用例
        self.assertEqual(self.test_name, self.expected_result)
        
if __name__ == '__main__':
    # 创建测试套件
    suite = unittest.TestSuite()
    
    # 创建测试类的实例
    my_test = MyTestCase()
    my_test.suite = suite
    
    # 运行时创建Case()对象
    my_test.create_dynamic_case('dynamic_test', 'pass')
    
    # 运行测试套件
    runner = unittest.TextTestRunner()
    runner.run(suite)