add test workflow

.github/workflows/ci.yml

@@ -0,0 +1,16 @@
+name: ci
+
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 16.x
+      - run: npm install
+      - run: npm run test