New GitHub Action to release to TestPyPI. Supports manual triggering

Author: garethpwright1

.github/workflows/test-release.yml

@@ -0,0 +1,37 @@
+name: Test Release
+
+on:
+  workflow_dispatch:  # Manual trigger only
+
+jobs:
+  test_publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: "3.9"
+    
+    - name: Install build dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e ".[build]"
+
+    - name: Build
+      run: |
+        pip install build twine
+        python -m build
+        twine check dist/*
+
+    - name: Publish to TestPyPI
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.TEST_PYPI_TOKEN }}
+      run: |
+        twine upload --repository testpypi dist/*
+
+    - name: Verify install from TestPyPI
+      run: |
+        pip install --index-url https://test.pypi.org/simple/ wiley-tdm
+        python -c "from wiley_tdm import TDMClient; print(f'Successfully installed wiley-tdm version {TDMClient.__version__}')"