Add testing CI

.github/workflows/lint.yml

@@ -47,3 +47,30 @@ jobs:
 
       - name: Type Check
         run: pnpm run type-check
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v3
+        with:
+          version: 9
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Run tests
+        run: pnpm run coverage
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/[email protected]
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}