Python 如何修复属于 unittest.TestCase 一部分的异步测试上的RuntimeWarning：coroutine ... was never waiting错误

我在运行异步测试时遇到了问题.

我的例子是:

import unittest
import asyncio
from asyncio import coroutine
import pytest
import os


class TestEcommerce(unittest.TestCase):

    async def assertFloatAlmostEqual(self, first, second, places=2, msg=""):
        """
        Used to compare float type values with the specified precision.
        Since with each test we can get numbers with slightly different accuracy - however, this is not an error
        :param msg:
        :param first:
        :param second:
        :param places:
        :return:
        """
        self.assertAlmostEqual(first, second, places=places, msg=msg)

    @pytest.mark.asyncio
    async def test_deep_analysis_find_complex(self):
        # Just for an example
        await self.assertFloatAlmostEqual(100.44, 100.445)
        pass

我得到了这个错误:

Kernel/test/test_demo.py::TestEcommerce::test_deep_analysis_find_complex /usr/lib/python3.10/unittest/Case.py:549:运行警告:协程 ‘TestEcommerce.test_deep_analysis_find_complex’从未被期待过 方法()使tracemalloc能够回溯到对象被分配的位置.看见 https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings个 更多信息.

-doc:https://docs.pytest.org/en/stable/how-to/capture-warnings.html

我早些时候查了similar question分，然而，上面的答案对我来说不起作用.

我还试图从main函数中删除async，但随后又出现了另一个错误(这实际上是意料之中的)

@pytest.mark.asyncio
def test_deep_analysis_find_complex(self):
    # Just for an example
    await self.assertFloatAlmostEqual(100.44, 100.445)
    pass

E await self.assertFloatAlmostEqual(100.44, 100.445) E
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ E SyntaxError: 'await' outside async function

你能告诉我怎么做这个测试吗？

以下是我的环境信息:

pip list --format=freeze | grep pytest

pytest==7.4.0
pytest-asyncio==0.21.1

python -V

Python3.10.6