ci: update linting tool from flake8 to Ruff

Author: PythonicVarun

.github/workflows/tests.yml

@@ -27,14 +27,12 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install flake8
-          pip install pytest pytest-cov
-          pip install .
+          pip install ".[dev]"
 
-      - name: Lint with flake8
+      - name: Lint with Ruff
         run: |
-          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+          ruff check .
+          ruff format --check .
 
       - name: Run tests
         run: pytest --cov --cov-branch --cov-report=xml --junitxml=junit.xml

pyproject.toml

@@ -62,5 +62,7 @@ convention = "google"
 dev = [
     "black>=26.1.0",
     "isort>=7.0.0",
+    "pytest>=9.0.2",
+    "pytest-cov>=7.0.0",
     "ruff>=0.14.14",
 ]

tests/test_gpu.py

@@ -94,7 +94,7 @@ def test_gpu_not_found(self, mock_run: MagicMock, mock_which: MagicMock) -> None
     def test_multiple_gpus(self, mock_run: MagicMock, mock_which: MagicMock) -> None:
         """Tests detection of multiple GPUs."""
         mock_which.return_value = "nvidia-smi"
-        output = "0, GPU A, 8000\n" "1, GPU B, 12000"
+        output = "0, GPU A, 8000\n1, GPU B, 12000"
         mock_run.return_value.stdout = output
         mock_run.return_value.returncode = 0