Add tests before push

.github/workflows/publish.yaml

@@ -6,9 +6,28 @@ on:
       - master
 
 jobs:
+  tests:
+    name: Python tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+      - name: Setup poetry
+        uses: abatilo/actions-poetry@v2
+        with:
+          poetry-version: 1.1.13
+      - name: Install dependencies
+        run: poetry install
+      - name: Test
+        run: pytest --cov=. --cov-branch --cov-report term-missing:skip-covered
+        working-directory: ./src/
   push_to_registry:
     name: Push Docker image to Docker Hub
     runs-on: ubuntu-latest
+    needs: [tests]
     steps:
       - name: Log in to Docker Hub
         uses: docker/login-action@v2