Test only oldest and newest supported Python

Add formatting (pre-commit) test
Run unit tests
Test build docs

.github/workflows/build.yml

@@ -6,7 +6,27 @@ on:
   pull_request: # to register the in-branch workflow
 
 jobs:
-  define-matrix:
+  verify:
+    name: Check code formatting and run tests
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: 3.x
+    - name: Install pre-commit
+      run: pip install pre-commit
+    - name: Check code formatting
+      run: pre-commit run --all-files
+    - name: Install test requirements
+      run: pip install pytest setuptools
+    - name: Run tests
+      run : python3 -m unittest discover test
+
+  define-python-version-matrix:
+    needs: verify
     runs-on: ubuntu-latest
 
     outputs:
@@ -15,44 +35,61 @@ jobs:
       - name: Define supported Python versions
         id: python-version
         run: |
-          echo 'python-version=["3.10", "3.11", "3.12", "3.13"]' >> "$GITHUB_OUTPUT"
+          echo 'python-version=["3.10", "3.13"]' >> "$GITHUB_OUTPUT"
 
   build:
-    needs: define-matrix
+    needs: define-python-version-matrix
     runs-on: [ubuntu-latest]
     strategy:
       matrix:
-        python-version: ${{ fromJSON(needs.define-matrix.outputs.python-version) }}
+        python-version: ${{ fromJSON(needs.define-python-version-matrix.outputs.python-version) }}
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - run: pip install build
     - run: python -m build
+
   pip-install:
-    needs: define-matrix
+    needs: define-python-version-matrix
     runs-on: [ubuntu-latest]
     strategy:
       matrix:
-        python-version: ${{ fromJSON(needs.define-matrix.outputs.python-version) }}
+        python-version: ${{ fromJSON(needs.define-python-version-matrix.outputs.python-version) }}
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - run: pip install build
     - run: pip install .
+
   pip-editable-install:
-    needs: define-matrix
+    needs: define-python-version-matrix
     runs-on: [ubuntu-latest]
     strategy:
       matrix:
-        python-version: ${{ fromJSON(needs.define-matrix.outputs.python-version) }}
+        python-version: ${{ fromJSON(needs.define-python-version-matrix.outputs.python-version) }}
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - run: pip install build
     - run: pip install -e .
+
+  build-docs:
+    needs: verify
+    runs-on: [ubuntu-latest]
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
+      with:
+        python-version: 3.x
+    - name: install cflib
+      run: pip install .
+    - name: install pdoc3
+      run: pip install pdoc3
+    - name: build docs
+      run: pdoc3 docs/api/template