Add test and coverage job

.github/workflows/ci.yml

@@ -3,6 +3,9 @@ on:
   pull_request:
     types: [opened, reopened, synchronize]
 
+env:
+  CODECOV_UNIQUE_NAME: CODECOV_UNIQUE_NAME-${{ github.run_id }}-${{ github.run_number }}
+
 jobs:
   code-quality-checks:
     name: Code Quality Checks
@@ -91,3 +94,36 @@ jobs:
             echo "$file is unauthorized to change/delete"
           done
           exit 1
+
+  testing-and-coverage:
+    name: Testing and Coverage
+    needs: [code-quality-checks]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Run development server
+        run: yarn run dev &
+
+      - name: Run tests and generate coverage report
+        run: yarn run test:coverage:all
+
+      - name: Upload coverage report to Codecov
+        uses: codecov/codecov-action@v2
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          name: ${{ env.CODECOV_UNIQUE_NAME }}
+          verbose: true
+          fail_ci_if_error: true