end-to-end-test-runner.js

#!/usr/bin/env node

// Taken from:
// https://github.com/browserstack/nightwatch-browserstack/blob/master/scripts/local.runner.js

var Nightwatch = require('nightwatch');
var browserstack = require('browserstack-local');
var bs_local;

try {
  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 = new browserstack.Local();
  bs_local.start(
    { key: process.env.BROWSERSTACK_ACCESS_KEY },
    function (error) {
      if (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 () {});
          });
      });
    }
  );
} catch (ex) {
  console.log('There was an error while starting the test runner:\n\n');
  process.stderr.write(ex.stack + '\n');
  process.exit(2);
}