Add compat with pytest 8 (ipython#1231)

pyproject.toml

@@ -54,7 +54,7 @@ docs = [
   "trio"
 ]
 test = [
-    "pytest>=7.0,<8",
+    "pytest>=7.0,<9",
     "pytest-cov",
     "flaky",
     "ipyparallel",

tests/__init__.py

@@ -7,6 +7,8 @@
 import tempfile
 from unittest.mock import patch
 
+import pytest
+
 from ipykernel.kernelspec import install
 
 pjoin = os.path.join
@@ -15,7 +17,8 @@
 patchers: list = []
 
 
-def setup():
+@pytest.fixture(autouse=True)
+def _global_setup():
     """setup temporary env for tests"""
     global tmp
     tmp = tempfile.mkdtemp()
@@ -34,9 +37,7 @@ def setup():
 
     # install IPython in the temp home:
     install(user=True)
-
-
-def teardown():
+    yield
     for p in patchers:
         p.stop()
 

tests/test_async.py

@@ -11,14 +11,13 @@
 KC = KM = None
 
 
-def setup_function():
+@pytest.fixture(autouse=True)
+def _setup_env():
     """start the global kernel (if it isn't running) and return its client"""
     global KM, KC
     KM, KC = start_new_kernel()
     flush_channels(KC)
-
-
-def teardown_function():
+    yield
     assert KC is not None
     assert KM is not None
     KC.stop_channels()

tests/test_eventloop.py

@@ -42,14 +42,13 @@ def _get_qt_vers():
 _get_qt_vers()
 
 
-def setup():
+@pytest.fixture(autouse=True)
+def _setup_env():
     """start the global kernel (if it isn't running) and return its client"""
     global KM, KC
     KM, KC = start_new_kernel()
     flush_channels(KC)
-
-
-def teardown():
+    yield
     assert KM is not None
     assert KC is not None
     KC.stop_channels()

tests/test_message_spec.py

@@ -22,7 +22,8 @@
 KC: BlockingKernelClient = None  # type:ignore
 
 
-def setup():
+@pytest.fixture(autouse=True)
+def _setup_env():
     global KC
     KC = start_global_kernel()