Re-introduce pytest-xdist in supported envs

.github/workflows/ci-cd.yml

@@ -220,14 +220,15 @@ jobs:
         COLOR: yes
         AIOHTTP_NO_EXTENSIONS: ${{ matrix.no-extensions }}
       run: >-  # `exit 1` makes sure that the job remains red with flaky runs
-        pytest --no-cov -vvvvv --lf && exit 1
+        pytest --no-cov --numprocesses=0 -vvvvv --lf && exit 1
       shell: bash
     - name: Run dev_mode tests
       env:
         COLOR: yes
         AIOHTTP_NO_EXTENSIONS: ${{ matrix.no-extensions }}
         PIP_USER: 1
-      run: python -X dev -m pytest -m dev_mode --cov-append
+        PYTHONDEVMODE: 1
+      run: pytest -m dev_mode --cov-append --numprocesses=0
       shell: bash
     - name: Turn coverage into xml
       env:
@@ -292,7 +293,7 @@ jobs:
       uses: CodSpeedHQ/action@v3
       with:
         token: ${{ secrets.CODSPEED_TOKEN }}
-        run: python -Im pytest --no-cov -vvvvv --codspeed
+        run: python -Im pytest --no-cov --numprocesses=0 -vvvvv --codspeed
 
 
   check:  # This job does nothing and is only used for the branch protection

requirements/constraints.txt

@@ -18,6 +18,8 @@ alabaster==0.7.13
     # via sphinx
 annotated-types==0.7.0
     # via pydantic
+apipkg==1.5
+    # via execnet
 async-timeout==4.0.3 ; python_version < "3.11"
     # via
     #   -r requirements/runtime-deps.in
@@ -69,6 +71,8 @@ filelock==3.16.1
     # via
     #   pytest-codspeed
     #   virtualenv
+execnet==2.1.1
+    # via pytest-xdist
 freezegun==1.5.1
     # via
     #   -r requirements/lint.in
@@ -145,6 +149,8 @@ proxy-py==2.4.9
     # via
     #   -r requirements/lint.in
     #   -r requirements/test.in
+py==1.11.0
+    # via pytest
 pycares==4.4.0
     # via aiodns
 pycparser==2.22
@@ -174,12 +180,25 @@ pytest==8.1.1
     #   pytest-codspeed
     #   pytest-cov
     #   pytest-mock
+    #   pytest-xdist
 pytest-codspeed==3.0.0
     # via
     #   -r requirements/lint.in
     #   -r requirements/test.in
 pytest-cov==5.0.0
     # via -r requirements/test.in
+pytest-mock==3.14.0
+    # via -r requirements/test.in
+pytest-xdist==3.6.1
+    # via -r requirements/test.txt
+python-dateutil==2.8.2
+    # via freezegun
+python-on-whales==0.71.0
+    # via
+    #   -r requirements/lint.in
+    #   -r requirements/test.in
+pytest-cov==5.0.0
+    # via -r requirements/test.in
 pytest-mock==3.14.0
     # via
     #   -r requirements/lint.in

requirements/test.in

@@ -3,10 +3,11 @@
 coverage
 freezegun
 mypy; implementation_name == "cpython"
-proxy.py >= 2.4.4rc4
+proxy.py >= 2.4.4rc5
 pytest
 pytest-cov
 pytest-mock
+pytest-xdist
 pytest_codspeed
 python-on-whales
 setuptools-git

requirements/test.txt

@@ -37,6 +37,8 @@ cryptography==43.0.3
     # via trustme
 exceptiongroup==1.2.2
     # via pytest
+execnet==2.1.1
+    # via pytest-xdist
 filelock==3.16.1
     # via pytest-codspeed
 freezegun==1.5.1
@@ -78,6 +80,8 @@ propcache==0.2.0
     #   yarl
 proxy-py==2.4.9
     # via -r requirements/test.in
+py==1.11.0
+    # via pytest
 pycares==4.4.0
     # via aiodns
 pycparser==2.22
@@ -95,11 +99,15 @@ pytest==8.1.1
     #   pytest-cov
     #   pytest-mock
 pytest-codspeed==3.0.0
-    # via -r requirements/test.in
+    # via
+    #   -r requirements/test.in
+    #   pytest-xdist
 pytest-cov==5.0.0
     # via -r requirements/test.in
 pytest-mock==3.14.0
     # via -r requirements/test.in
+pytest-xdist==3.6.1
+    # via -r requirements/test.in
 python-dateutil==2.9.0.post0
     # via freezegun
 python-on-whales==0.73.0

setup.cfg

@@ -124,6 +124,9 @@ exclude_lines =
 
 [tool:pytest]
 addopts =
+    # `pytest-xdist`:
+    --numprocesses=auto
+
     # show 10 slowest invocations:
     --durations=10
 

tests/test_client_request.py

@@ -736,7 +736,8 @@ async def test_urlencoded_formdata_charset(
         data=aiohttp.FormData({"hey": "you"}, charset="koi8-r"),
         loop=loop,
     )
-    await req.send(conn)
+    async with await req.send(conn):
+        await asyncio.sleep(0)
     assert "application/x-www-form-urlencoded; charset=koi8-r" == req.headers.get(
         "CONTENT-TYPE"
     )
@@ -755,7 +756,8 @@ async def test_formdata_boundary_from_headers(
             headers={"Content-Type": f"multipart/form-data; boundary={boundary}"},
             loop=loop,
         )
-        await req.send(conn)
+        async with await req.send(conn):
+            await asyncio.sleep(0)
         assert req.body._boundary == boundary.encode()
 
 
@@ -1088,13 +1090,13 @@ async def throw_exc() -> None:
 
     t = loop.create_task(throw_exc())
 
-    await req.send(conn)
-    assert req._writer is not None
-    await req._writer
-    await t
-    # assert conn.close.called
-    assert conn.protocol is not None
-    assert conn.protocol.set_exception.called
+    async with await req.send(conn):
+        assert req._writer is not None
+        await req._writer
+        await t
+        # assert conn.close.called
+        assert conn.protocol is not None
+        assert conn.protocol.set_exception.called
     await req.close()
 
 
@@ -1118,9 +1120,9 @@ async def throw_exc() -> None:
 
     t = loop.create_task(throw_exc())
 
-    await req.send(conn)
-    assert req._writer is not None
-    await req._writer
+    async with await req.send(conn):
+        assert req._writer is not None
+        await req._writer
     await t
     # assert conn.close.called
     assert conn.protocol.set_exception.called