[FEATURE] add github action

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    name: Test with Codecov
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up Node 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+      - name: Install dependencies
+        run: npm install
+      - name: Run tests and collect coverage
+        run: npm run test
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3

jest.config.js

@@ -1,6 +1,7 @@
 module.exports = {
+  collectCoverage: true,
   coverageDirectory: "coverage",
   preset: "ts-jest",
   testEnvironment: "node",
-  transformIgnorePatterns: ["<rootDir>/node_modules/"],
+  coverageReporters: ["text", "cobertura"],
 };