app_vue2/test/use/layout/menu.spec.js

import BaseMenu from "~/use/layout/Menus/baseMenu";

test('test constructMenu', () => {
  const menuWithoutChildren = new BaseMenu({'baseURL_adminLegacy': 'base_url'}).constructMenu('children',  'icon', '/url', false)
  expect(menuWithoutChildren).toStrictEqual({
    "title": "children",
    "icon": "icon",
    "to": "/url",
    "isExternalLink": false
  });

  const menuWithChildren = new BaseMenu({'baseURL_adminLegacy': 'base_url'}).constructMenu('parent', 'icon', undefined, undefined, [menuWithoutChildren])
  expect(menuWithChildren).toStrictEqual({
    "children": [
      {
        "title": "children",
        "icon": "icon",
        "to": "/url",
        "isExternalLink": false
      }
    ],
    "icon": "icon",
    "title": "parent"
  });
})