const { JSDOM, VirtualConsole } = require("jsdom"); const options = { virtualConsole: new VirtualConsole().sendTo(console) }; const dom = new JSDOM(` <div> <input className="a" type="text" /> <input className="b" type="text" /> </div> `, options); // tab into a let event = new dom.window.KeyboardEvent('keydown', { keyCode: 9 }); // Tab key dom.window.dispatchEvent(event); console.log("Should be a: "+ dom.window.document.activeElement.className); // now to b event = new dom.window.KeyboardEvent('keydown', { keyCode: 9 }); // Tab key dom.window.dispatchEvent(event); console.log("Should be b: "+ dom.window.document.activeElement.className); // And back to a event = new dom.window.KeyboardEvent('keydown', { keyCode: 9 }); // Tab key dom.window.dispatchEvent(event); console.log("Should be a: "+ dom.window.document.activeElement.className);