Get's coverage data from a url using puppetteer.

puppetteer-get-coverage.js

const puppetteer = require("puppeteer");

/**
 * @param {string} pageUrl The URL that you want to gather coverage data for
 */
const unusedCode = async pageUrl => {
  const browser = await puppetteer.launch();
  console.log("browser launched");
  const page = await browser.newPage();
  console.log("new page created");
  await Promise.all([page.coverage.startJSCoverage(), page.coverage.startCSSCoverage()]);
  console.log("coverage started");
  await page.goto(pageUrl);
  console.log("navigated to", pageUrl);
  const [jsCoverage, cssCoverage] = await Promise.all([page.coverage.stopJSCoverage(), page.coverage.stopCSSCoverage()]);
  console.log("coverage recieved");
  return [...jsCoverage, ...cssCoverage];
};

module.exports = unusedCode;