Add Python 3.14 classifier and supporting test

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5

setup/package_info.py

@@ -19,6 +19,7 @@
     'Programming Language :: Python :: 3.11',
     'Programming Language :: Python :: 3.12',
     'Programming Language :: Python :: 3.13',
+    'Programming Language :: Python :: 3.14',
 ]
 
 ######################################

tests/test_python_version_support.py

@@ -0,0 +1,16 @@
+from importlib.util import module_from_spec, spec_from_file_location
+from pathlib import Path
+
+
+def load_package_info_module():
+    package_info_path = Path(__file__).resolve().parents[1] / "setup" / "package_info.py"
+    spec = spec_from_file_location("package_info", package_info_path)
+    module = module_from_spec(spec)
+    assert spec.loader is not None
+    spec.loader.exec_module(module)
+    return module
+
+
+def test_python_314_classifier_present():
+    package_info = load_package_info_module()
+    assert 'Programming Language :: Python :: 3.14' in package_info.CLASSIFIERS