add tests

Author: jsstevenson

.github/workflows/python-package.yaml

@@ -8,6 +8,30 @@ permissions:
   contents: read
 
 jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.11", "3.12", "3.13"]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: {{ "${{ matrix.python-version }}" }}
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          enable-cache: true
+
+      - name: Install dependencies
+        run: uv sync --extra tests
+
+      - name: Run tests
+        run: uv run pytest
   lint:
     name: lint
     runs-on: ubuntu-latest