test isConnected during move in jsdom

index.js

const jsdom = require("jsdom")
const { JSDOM } = jsdom

const { window } = new JSDOM(``)
const { document } = window

window.customElements.define('x-foo', class extends window.HTMLElement {
        connectedCallback() { console.log('cC') }
        disconnectedCallback() { console.log('dC, this.isConnected?', this.isConnected) }

})

const foo = document.createElement('x-foo')
document.body.appendChild(foo)

const div = document.createElement('div')

document.body.appendChild(div)

document.body.removeChild(foo)
div.appendChild(foo)