Add jest simple test in util folder

jest.config.js

@@ -0,0 +1,14 @@
+import nextJest from 'next/jest.js';
+
+// https://nextjs.org/docs/app/building-your-application/testing/jest
+const createJestConfig = nextJest({
+  dir: './',
+});
+
+/** @type {import('jest').Config} */
+const config = {
+  testEnvironment: 'jest-environment-jsdom',
+  testPathIgnorePatterns: ['<rootDir>/playwright/'],
+};
+
+export default createJestConfig(config);

package.json

@@ -25,13 +25,18 @@
     "zod": "^3.23.8"
   },
   "devDependencies": {
+    "@jest/globals": "^29.7.0",
+    "@testing-library/jest-dom": "^6.4.6",
+    "@testing-library/react": "^16.0.0",
     "@ts-safeql/eslint-plugin": "^3.3.1",
     "@types/bcrypt": "^5.0.2",
     "@types/dotenv-safe": "^8.1.6",
     "@types/node": "^20.14.10",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
     "eslint-config-upleveled": "^8.5.0",
+    "jest": "^29.7.0",
+    "jest-environment-jsdom": "^29.7.0",
     "libpg-query": "^16.2.0",
     "prettier": "^3.3.2",
     "prettier-plugin-embed": "^0.4.15",