Format all tests.

tests/lib_strong/html/worker_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library worker_test;
+
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_individual_config.dart';
 import 'dart:html';
 
 main() {
   useHtmlIndividualConfiguration();
 
   group('supported', () {
     test('supported', () {
       expect(Worker.supported, isTrue);
     });
   });
 
   var workerScript = '''postMessage('WorkerMessage');''';
 
   group('functional', () {
-
     test('unsupported', () {
       if (!Worker.supported) {
         expect(() => new Worker('worker.js'), throws);
       } else {
         new Worker('worker.js').onError.first.then(expectAsync((e) {
           // This event is expected, "worker.js" doesn't exist.  But the event
           // *sometimes* propagates to window.onerror in Firefox which causes
           // this test to fail, so let's stop any further propagation:
           e.preventDefault();
           e.stopImmediatePropagation();
@@ skipping 10 matching lines @@
       var blob = new Blob([workerScript], 'text/javascript');
       var url = Url.createObjectUrl(blob);
       var worker = new Worker(url);
       var test = expectAsync((e) {
         expect(e.data, 'WorkerMessage');
       });
       worker.onMessage.first.then(test);
     });
   });
 }