Broken timeout

[karpetrosyan]

timeout argument doesn't work

server.py

import asyncio
from fastapi import FastAPI

app = FastAPI()

@app.get("/slow_response")
async def slow_request():
    await asyncio.sleep(10)

test.py

@pytest.mark.anyio
async def test_timeout_exception(app):
    async with httpx.AsyncClient(app=app, base_url="https://example.com", timeout=1) as client:
        await client.get("/slow_response", timeout=1)

$ time pytest tests/test_downloader.py::test_timeout_exception 
.                                                                                                                                                                                                                           [100%]
1 passed in 10.11s
pytest tests/test_downloader.py::test_timeout_exception -q  0.58s user 0.07s system 6% cpu 10.665 total

How this works? The request takes 10 seconds but it works fine with 1 second timeout