Add Github actions workflow

Author: takluyver

.github/workflows/test.yml

@@ -0,0 +1,63 @@
+name: Tests
+
+on:
+  push:
+    branches: [ master ]
+    tags: [ '*' ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  tests:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.11", "3.12", "3.13"]
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('pyproject.toml') }}
+
+    - name: Install dependencies
+      run: |
+        python3 -m pip install --upgrade pip
+        python3 -m pip install pytest
+
+    - name: Test with pytest
+      run: |
+        python3 -m pytest -v
+
+  publish:
+    runs-on: ubuntu-latest
+    if: ${{ startsWith(github.ref, 'refs/tags/') }}
+    needs: tests
+    permissions:
+      id-token: write  # OIDC for uploading to PyPI
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Build packages
+        run: |
+          python3 -m pip install build
+          python3 -m build
+
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1