E2e with nightwatch and browserstack

scripts/e2e.js

@@ -0,0 +1,38 @@
+#!/usr/bin/env node
+
+const Nightwatch = require('nightwatch');
+const browserstack = require('browserstack-local');
+
+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}, 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(){});
+        });
+    });
+  });
+} catch (ex) {
+  console.log('There was an error while starting the test runner:\n\n');
+  process.stderr.write(`${ex.stack}\n`);
+  process.exit(2);
+}