如何使用`asyncio.sleep()`包含的代码进行单元测试？

import asyncio
import unittest

class MyTestCase(unittest.TestCase):
    pass

class MyTestCase(unittest.TestCase):
    def test_sleep_function(self):
        pass

class MyTestCase(unittest.TestCase):
    def test_sleep_function(self):
        async def my_async_function():
            await asyncio.sleep(1)
            # 这里可以添加需要测试的异步代码

        asyncio.run(my_async_function())

class MyTestCase(unittest.TestCase):
    def test_sleep_function(self):
        async def my_async_function():
            await asyncio.sleep(1)
            # 这里可以添加需要测试的异步代码

        result = asyncio.run(my_async_function())
        self.assertEqual(result, expected_result)

if __name__ == '__main__':
    unittest.main()