talk/scripts/e2e-browserstack.js

#!/usr/bin/env node

const Nightwatch = require('nightwatch');
const browserstack = require('browserstack-local');
const {onshutdown} = require('../bin/util');

async function start() {
  try {
    const bs_local = new browserstack.Local();
    process.mainModule.filename = './node_modules/.bin/nightwatch';

    // Code to start browserstack local before start of test
    console.log('Connecting local');
    Nightwatch.bs_local = bs_local;

    bs_local.start({
      'key': process.env.BROWSERSTACK_KEY,
      'logFile': './test/e2e/bslocal.log'
    }, function(error) {
      if (error) {
        console.error(error);
        throw error;
      }

      console.log('Connected. Now testing...');
      Nightwatch.cli(function(argv) {
        Nightwatch.CliRunner(argv)
          .setup(null, function(){

            // Code to stop browserstack local after end of parallel test
            bs_local.stop(function(){});
          })
          .runTests(function(){

            // Code to stop browserstack local after end of single test
            bs_local.stop(function(){});
          });
      });
    });

    onshutdown([
      () => bs_local.stop(function(){}),
    ]);
  } catch (ex) {
    console.log('There was an error while starting the test runner:\n\n');
    process.stderr.write(`${ex.stack}\n`);
    process.exit(2);
  }
}

start();