Fix test action

Re-add conditional upload
Add poetry cache

.github/workflows/tests.yml

@@ -15,37 +15,31 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest] #, windows-latest, macos-latest]
-        python-version: ["3.10"] #, "3.11", "3.12"]
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-          cache: "pip" # caching pip dependencies
+          cache: "poetry"
 
       - name: Configure poetry
         run: |
           python -m pip install --upgrade pip
           python -m pip install poetry
-          python -m poetry config virtualenvs.in-project true
-      - name: Cache the virtualenv
-        uses: actions/cache@v4
-        with:
-          path: ./.venv
-          key: ${{ matrix.os }}-${{matrix.python-version}}-venv-${{ hashFiles('**/poetry.lock') }}
       - name: Install dependencies
         run: |
           python -m poetry install
-      - name: Test with pytest
+      - name: Test with pytest and create coverage report
         run: |
           python -m poetry run coverage run --source=panoptica -m pytest
           python -m poetry run coverage xml
-      - name: Upload results to Codecov
+      - name: Upload coverage results to Codecov (Only on merge to main)
         # Only upload to Codecov after a merge to the main branch
-        # if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+        if: github.ref == 'refs/heads/main' && github.event_name == 'push'
         uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}