async Deno.test() tests

uitest.js

import puppeteer from 'https://deno.land/x/puppeteer/mod.ts';
import { assert } from 'https://deno.land/std/testing/asserts.ts';
/*
related:

async runTests()
https://github.com/denoland/deno/issues/10941
https://github.com/denoland/deno_std/issues/162

discussion of testing API
https://github.com/denoland/deno/discussions/10771

more
https://deno.land/manual/testing
https://deno.land/std/testing

 * */

const browser = await puppeteer.launch({
headless: false,
devtools: true,
slowMo: 250,
executablePath: '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome',
//	args: ['--no-sandbox']
});
const [page] = await browser.pages();

const url = 'http://localhost:8000/';
await page.goto(url).catch(error=>{
console.error(`can't open ${ url } "${error.message}"`);
Deno.exit(1);
});
const result = await page.evaluate(()=>{
	return {url: location.href};
});

console.log('>Deno.test() is next');

let n = 0;
Deno.test(`test${ n++ }`, async ()=>{
	assert(result.url, 'has a url');
	console.log(`<Deno.test() ran ${ n }`);
});
Deno.test(`test${ n++ }`, ()=>{
	assert(result.url, 'has a url');
	console.log(`<Deno.test() ran ${ n }`);
});
Deno.test(`test${ n++ }`, async ()=>{
	assert(result.url, 'has a url');
	console.log(`<Deno.test() ran ${ n }`);
});
Deno.test(`test${ n++ }`, async ()=>{
	assert(result.url, 'has a url');
	console.log(`<Deno.test() ran ${ n }`);
});

// runs them all again a second time when not wrapped in outer async function
await Deno[Deno.internal].runTests();

await browser.close();