Add tests in workflow

.gitea/workflows/tests.yaml

@@ -0,0 +1,31 @@
+name: Run Tests
+run-name: ${{ gitea.actor }} - ${{ gitea.event_name }} - ${{ gitea.ref }}
+on: [push]
+
+jobs:
+  test-backend:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Install dependencies
+        run: |
+          cd backend
+          npm ci
+      - name: Run tests
+        run: |
+          cd backend
+          npm run test
+  test-frontend:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Install dependencies
+        run: |
+          cd frontend
+          npm ci
+      - name: Run tests
+        run: |
+          cd frontend
+          npm run test