global.config.ts (7 lines of code) (raw):

import prettyFormat from 'pretty-format' global['prettyFormat'] = prettyFormat global['sleep'] = (time: number) => { return new Promise((resolve) => setTimeout(resolve, time)) } global['requestAnimationFrame'] = (fn: () => void) => setTimeout(fn, 0) global['document'].documentElement.style['grid-column-gap'] = true