anchor.diff:    });
   
     test("can listen for key events", (){
  -    _s = ShortCut.stream.listen(expectAsync1((e) {
  +    _s = ShortCut.stream.listen(expectAsync((e) {
         expect(e.isKey('A'), true);
       }));
   
  
positive.code:   });
  
    test("can listen for Command shortcuts (OSX)", (){
      _s = ShortCut.stream.listen(expectAsync1((e) {
        expect(e.isCommand('A'), true);
      }));
  
  
negative.code: 
  import 'package:ctrl_alt_foo/keys.dart';
  import 'package:ctrl_alt_foo/shortcut.dart';
  // import 'package:ctrl_alt_foo/key_event_x.dart';
  import 'package:ctrl_alt_foo/helpers.dart';
  
  import 'package:unittest/unittest.dart';
  import 'package:unittest/html_config.dart';
  // import 'dart:html';
  // import 'dart:async';
  
  main(){
    useHtmlConfiguration();
  