a11y Cypress KeyDown

keydown.ts

const keycode = require("keycode");

Cypress.Commands.add("keyDown", (tagName: string, key: string, modifiers: Object) => {
  return cy.window().then((win: any) => {
    const event = Object.assign({
      keyCode: keycode(key),
    }, modifiers);
    const e = win.$.Event("keydown", event);
    win.$(tagName).trigger(e);
  });
});