CI: adding testing with pytest 8.0.x

Author: bsipocz

.github/workflows/python-tests.yml

@@ -57,7 +57,15 @@ jobs:
           - os: ubuntu-latest
             python-version: '3.11'
             toxenv: py311-test-pytest74
-            toxargs: --pre
+          - os: ubuntu-latest
+            python-version: '3.12'
+            toxenv: py312-test-pytest80
+          - os: macos-latest
+            python-version: '3.12'
+            toxenv: py312-test-pytest80
+          - os: windows-latest
+            python-version: '3.12'
+            toxenv: py312-test-pytest80
           - os: macos-latest
             python-version: '3.11'
             toxenv: py311-test-pytestdev

tox.ini

@@ -24,12 +24,18 @@ deps =
     pytest72: pytest==7.2.*
     pytest73: pytest==7.3.*
     pytest74: pytest==7.4.*
+    pytest80: pytest==8.0.*
     pytestdev: git+https://github.com/pytest-dev/pytest#egg=pytest
     pytestdev: git+https://github.com/scientific-python/pytest-doctestplus
 
 extras =
     test
 
+# Temporary measures to be able to test on 8.0.x in its RC cycle
+pip_pre =
+    pytest80: true
+    !pytest80: false
+
 commands =
     pip freeze
     pytest {toxinidir}/tests {posargs}