added test workflow

.github/workflows/test.yml

@@ -0,0 +1,33 @@
+name: Test Workflow
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20]
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - name: Install dependencies
+      run: yarn install
+
+    - name: Run tests
+      run: yarn test
+    - name: Upload coverage reports to Codecov
+      uses: codecov/codecov-action@v3
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}