Function test

spec/gridstack-spec.ts:1776–1782

()

    let items: GridStackWidget[];
    let grid: GridStack;
    const test = () => {
      items.forEach(item => {
        const n = grid.engine.nodes.find(n => n.id === item.id);
        if (item.y) expect(parseInt(n.el.getAttribute('gs-y'))).toBe(item.y!);
        else expect(n.el.getAttribute('gs-y')).toBe(null);
      });
    }
    beforeEach(() => {
      document.body.insertAdjacentHTML('afterbegin', gridstackEmptyHTML);
      items = [