testServer.js

;(async () => {
   const browser = await puppeteer.launch()
   const page = await browser.newPage()
   await page.setBypassCSP(true)
   await page.goto("http://localhost:8000")
   const results = await new AxePuppeteer(page)
               .analyze()
 
   if (results.violations.length > 0) {
       log(chalk.red.bold("Axe violations:"))
       for (let i = 0; i < results.violations.length; i++) {
           console.log(results.violations[i]);
       }
   } else {
       console.log("All accessibility tests have passed!");
   }
   await page.close()
   await browser.close()

   server.close((err) => {
       if (err) {
           console.error(err);
       }
   })
})()