pytest-aiohttp
Pytest plugin for aiohttp support
Decision gist · record as of 2026-08-14
Yes. The plugin is actively maintained, has no known vulnerabilities, supports current Python versions (3.10–3.14), and solves a real problem—testing aiohttp apps requires boilerplate that this plugin eliminates. Install if you're writing tests for aiohttp applications and want fixtures that handle server/client lifecycle automatically.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires pytest.ini or pyproject.toml configuration with asyncio_mode set to 'auto' or 'strict' for pytest-asyncio.
- Low friction install with three well-maintained runtime dependencies (pytest, aiohttp, pytest-asyncio).
- Repository is active with recent commits and no archived status.
License · maintenance · safety
Apache 2.0 (permissive) — Apache 2.0 permissive license allows use in most commercial and open-source projects without significant restrictions.
last release 2026-06-07 (68 days) · last repo commit 2026-08-12 · 143 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 6,033,878 downloads/mo, #1,979 on PyPI
Alternatives
Verify before relying
pip install pytest-aiohttp
# In pytest.ini or pyproject.toml:
# [tool.pytest.ini_options]
# asyncio_mode = "auto"
from aiohttp import web
async def test_hello(aiohttp_client):
app = web.Application()
app.router.add_route("GET", "/", lambda r: web.Response(text="Hello"))
client = await aiohttp_client(app)
resp = await client.get("/")
assert resp.status == 200- Whether the plugin works with pytest-asyncio modes other than 'auto' and 'strict' without configuration changes
- Performance characteristics when testing large numbers of concurrent aiohttp client/server pairs
What it is and what it does
pytest-aiohttp is a pytest plugin that bridges pytest and aiohttp for testing async HTTP applications. It provides fixtures (like aiohttp_client) that simplify creating test servers and clients within async test functions, with automatic cleanup of resources. The plugin integrates with pytest-asyncio to run async tests, requiring you to configure pytest with asyncio_mode set to 'auto' or 'strict'.
You write tests in pytest-asyncio style, instantiate an aiohttp application, pass it to the aiohttp_client fixture to get a test client, then make requests and assert on responses. The plugin handles the lifecycle—starting the server, managing the client connection, and tearing down resources—so you focus on test logic rather than setup and teardown boilerplate.
Use it for
- Test aiohttp web handlers by creating an in-process test server and client within async test functions
- Verify HTTP request/response behavior (status codes, headers, body content) in aiohttp applications
- Test middleware, error handlers, and routing logic in aiohttp web apps without external network calls
- Validate async request/response cycles in integration tests that need both server and client running
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The plugin is actively maintained, has no known vulnerabilities, supports current Python versions (3.10–3.14), and solves a real problem—testing aiohttp apps requires boilerplate that this plugin eliminates. Install if you're writing tests for aiohttp applications and want fixtures that handle server/client lifecycle automatically.
Install
pytest-aiohttp on PyPI
Before you install
Low friction install with three well-maintained runtime dependencies (pytest, aiohttp, pytest-asyncio). Repository is active with recent commits and no archived status.
Requires pytest.ini or pyproject.toml configuration with asyncio_mode set to 'auto' or 'strict' for pytest-asyncio.
License in practice
Apache 2.0 permissive license allows use in most commercial and open-source projects without significant restrictions.
Quickstart
pip install pytest-aiohttp
# In pytest.ini or pyproject.toml:
# [tool.pytest.ini_options]
# asyncio_mode = "auto"
from aiohttp import web
async def test_hello(aiohttp_client):
app = web.Application()
app.router.add_route("GET", "/", lambda r: web.Response(text="Hello"))
client = await aiohttp_client(app)
resp = await client.get("/")
assert resp.status == 200Verify before relying
- Whether the plugin works with pytest-asyncio modes other than 'auto' and 'strict' without configuration changes
- Performance characteristics when testing large numbers of concurrent aiohttp client/server pairs
Package facts
| License | Apache 2.0 permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 3 packagespytestaiohttppytest-asyncio |
| Maintenance | Actively maintained 68 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 6,033,878 / month, #1,979 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaFramework :: AsyncIOFramework :: PytestFramework :: aiohttpIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Topic :: Software Development :: TestingTyping :: Typed |
Evidence: pytest_aiohttp-1.1.1-py3-none-any.whl
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