每次我尝试在测试中创建多个异步调用函数时,我都会收到错误 RuntimeError: Event loop is closed
。我已经尝试使用 stackoverflow 上的所有建议来重写 event_loop fixture
但没有任何效果。我想知道我错过了什么
运行测试命令:python -m pytest tests/--asyncio-mode=auto
需求.txt
pytest==7.1.2
pytest-asyncio==0.18.3
pytest-html==3.1.1
pytest-metadata==2.0.1
测试.py
async def test_user(test_client_fast_api):
assert 200 == 200
request_first = test_client_fast_api.post( # works fine
"/first_route",
)
request_second = test_client_fast_api.post( # recieve RuntimeError: Event loop is closed
"/second_route",
)
conftest.py
@pytest.fixture()
def event_loop():
try:
loop = asyncio.get_running_loop()
except RuntimeError:
loop = asyncio.new_event_loop()
yield loop
loop.close()
最佳答案
解决这个问题花了我一下午的时间。 我也尝试从别人的代码中获得成功,这是我的代码。
在放置测试脚本的目录下添加文件conftest.py
。
并编写如下代码。
import pytest
from main import app
from httpx import AsyncClient
@pytest.fixture(scope="session")
def anyio_backend():
return "asyncio"
@pytest.fixture(scope="session")
async def client():
async with AsyncClient(app=app, base_url="http://test") as client:
print("Client is ready")
yield client
然后编写测试脚本test_xxx.py
。
import pytest
from httpx import AsyncClient
@pytest.mark.anyio
async def test_run_not_exists_schedule(client: AsyncClient):
response = await client.get("/schedule/list")
assert response.status_code == 200
schedules = response.json()["data"]["schedules"]
schedules_exists = [i["id"] for i in schedules]
not_exists_id = max(schedules_exists) + 1
request_body = {"id": not_exists_id}
response = await client.put("/schedule/run_cycle", data=request_body)
assert response.status_code != 200
@pytest.mark.anyio
async def test_run_adfasdfw(client: AsyncClient):
response = await client.get("/schedule/list")
assert response.status_code == 200
schedules = response.json()["data"]["schedules"]
schedules_exists = [i["id"] for i in schedules]
not_exists_id = max(schedules_exists) + 1
request_body = {"id": not_exists_id}
response = await client.put("/schedule/run_cycle", data=request_body)
assert response.status_code != 200
这是我自己项目的真实测试代码。可以改成自己的。最后在项目的终端运行python -m pytest
。如果一切顺利,应该就ok了。这可能涉及到需要安装的库。
pytest
httpx
关于pytest运行时错误: Event loop is closed FastApi,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/72960518/