Splits long running tuner tests into separate github actions step with pytest marks

Author: chrisk314

.github/workflows/lint-test.yaml

@@ -125,7 +125,7 @@ jobs:
           sleep 10 # Wait for services to start
 
       - name: Run integration tests
-        run: COVERAGE_FILE=.coverage.py${{ matrix.python_version }}.integration uv run coverage run -m pytest ./tests/integration/
+        run: COVERAGE_FILE=.coverage.py${{ matrix.python_version }}.integration uv run coverage run -m pytest ./tests/integration/ -m "not tuner"
         env:
           RABBITMQ_URL: amqp://user:password@localhost:5672/
 
@@ -135,10 +135,52 @@ jobs:
           name: coverage-integration-py${{ matrix.python_version }}
           include-hidden-files: true
           path: .coverage.py${{ matrix.python_version }}.integration*
+  
+  test-integration-tuner:
+    name: Tests - integration:tuner
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    strategy:
+      matrix:
+        python_version: [3.12, 3.13]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{matrix.python_version}}
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v4
+        with:
+          enable-cache: true
+          cache-dependency-glob: "uv.lock"
+
+      - name: Install project
+        run: uv sync --group test
+
+      - name: Run backing services
+        run: |
+          docker compose up rabbitmq -d
+          sleep 10 # Wait for services to start
+
+      - name: Run integration tests
+        run: COVERAGE_FILE=.coverage.py${{ matrix.python_version }}.integration.tuner uv run coverage run -m pytest ./tests/integration/ -m "tuner"
+        env:
+          RABBITMQ_URL: amqp://user:password@localhost:5672/
+
+      - name: Upload integration test coverage
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-integration-tuner-py${{ matrix.python_version }}
+          include-hidden-files: true
+          path: .coverage.py${{ matrix.python_version }}.integration.tuner*
 
   coverage-report:
     name: Report coverage
-    needs: [test-unit, test-integration]
+    needs: [test-unit, test-integration, test-integration-tuner] # Depends on tests passing
     runs-on: ubuntu-latest
     strategy:
       matrix:

tests/integration/test_tuner.py

@@ -16,6 +16,7 @@ def config() -> dict:
         return msgspec.yaml.decode(f.read())
 
 
+@pytest.mark.tuner
 @pytest.mark.asyncio
 @pytest.mark.parametrize("mode", ["min", "max"])
 @pytest.mark.parametrize("process_type", ["local", "ray"])
@@ -65,6 +66,7 @@ async def test_tune(config: dict, mode: str, process_type: str, ray_ctx: None) -
         assert best_result.metrics["c.in_1"] == 6
 
 
+@pytest.mark.tuner
 @pytest.mark.asyncio
 async def test_multi_objective_tune(config: dict, ray_ctx: None) -> None:
     """Tests multi-objective optimisation."""