Restructure workflow in three separate jobs

Author: EZoni

.github/workflows/tests.yml

@@ -11,14 +11,14 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  tests:
-    name: tests
+  unit-tests:
+    name: unit tests
     runs-on: ubuntu-latest
     strategy:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -27,23 +27,58 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install ".[test]"
-      - name: Test
+      - name: Run unit tests
         run: |
           pytest tests -v
-      - name: Examples (internal)
+
+  internal-examples:
+    name: internal examples
+    runs-on: ubuntu-latest
+      strategy:
+        matrix:
+          python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+            python-version: ${{ matrix.python-version }}
+      - name: Install
+        run: |
+          python -m pip install --upgrade pip
+          pip install ".[test]"
+      - name: Run internal examples
         run: |
           python examples/fodo.py
-      - name: Examples (external)
+
+  upstream-examples:
+    name: upstream examples
+    runs-on: ubuntu-latest
+      strategy:
+        matrix:
+          python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 1
+      - name: Checkout upstream PALS repo
+        uses: actions/checkout@v6
+        with:
+          repository: pals-project/pals
+          path: pals_temp
+          fetch-depth: 1
+          sparse-checkout: |
+            examples/
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+            python-version: ${{ matrix.python-version }}
+      - name: Install
+        run: |
+          python -m pip install --upgrade pip
+          pip install ".[test]"
+      - name: Run upstream examples
         run: |
-          # Copy examples directory from the main PALS repository
-          cd examples
-          git clone --no-checkout https://github.com/pals-project/pals.git pals_temp
-          cd pals_temp
-          git sparse-checkout init
-          git sparse-checkout set examples/
-          git checkout main
-          # Test all external examples
-          cd -
           for file in pals_temp/examples/*.pals.yaml; do
-            python test_external_examples.py --path "${file}"
+            python test_upstream_examples.py --path "${file}"
           done