Changes for CI tests

.github/workflows/test_windows.yml

@@ -0,0 +1,27 @@
+# Run tests on Windows.
+name: test_windows
+on: [push, pull_request]
+permissions: read-all
+jobs:
+  test_windows:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+        - os: windows-2025
+          python-version: '3.14'
+          toxenv: 'py314'
+    steps:
+    - uses: actions/checkout@v6
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v6
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+    - name: Install tox
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install tox tox-gh-actions
+    - name: Run tests
+      run: |
+        tox -e ${{ matrix.toxenv }}

tox.ini

@@ -2,7 +2,6 @@
 envlist = py3{10,11,12,13,14},black,coverage,docformatter,docs,pylint,wheel,yamllint
 
 [testenv]
-allowlist_externals = ./run_tests.py
 pip_pre = True
 passenv =
   CFLAGS
@@ -17,7 +16,7 @@ deps =
     setuptools >= 65
     wheel
 commands =
-  py3{10,11,12,13,14}: ./run_tests.py
+  py3{10,11,12,13,14}: python run_tests.py
   coverage: coverage erase
   coverage: coverage run --source=dfwinreg --omit="*_test*,*__init__*,*test_lib*" run_tests.py
   coverage: coverage xml