Add unit tests for form functions

package.json

@@ -27,12 +27,14 @@
     "start": "next dev",
     "start-prod": "next start --port ${SERVER_PORT:=80}",
     "serve": "next start --port 3000",
+    "test:unit": "jest --coverage",
     "test": "npm run testcafe",
     "testcafe": "testcafe --config-file testcafe.json",
     "build-analyze": "ANALYZE=true npm run build",
     "prepare": "husky install"
   },
   "devDependencies": {
+    "@types/jest": "^27.0.1",
     "@types/js-cookie": "^2.2.7",
     "@types/react": "^17.0.19",
     "@types/react-beautiful-dnd": "^13.1.1",
@@ -48,12 +50,14 @@
     "eslint-config-airbnb-typescript": "^13.0.0",
     "eslint-config-next": "^11.1.0",
     "husky": "^7.0.1",
+    "jest": "^27.1.0",
     "next-sitemap": "^1.6.162",
     "npm-run-all": "^4.1.5",
     "stylelint": "^13.13.1",
     "stylelint-config-standard": "^22.0.0",
     "stylelint-config-styled-components": "^0.1.1",
     "testcafe": "^1.15.3",
+    "ts-jest": "^27.0.5",
     "typescript": "^4.3.5"
   },
   "dependencies": {