Add code coverage job in testing workflow

.github/workflows/test.yml

@@ -48,3 +48,39 @@ jobs:
       - name: Run pytest
         run: |
           pytest -v
+
+  # upload code coverage report
+  code-coverage:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          lfs: "true"
+      - run: git lfs pull
+
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.10"
+
+      - name: Install CUDA tools
+        run: |
+          sudo apt update
+          sudo apt install nvidia-cuda-toolkit
+          sudo mkdir -p /usr/lib/x86_64-linux-gnu/nsight-compute/sections
+
+      - name: Install Python dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r tests/requirements.txt
+          pip install pytest-cov[toml]
+
+      - name: Run tests and collect coverage
+        run: pytest --cov nvcc4jupyter
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}