| Index: test/filterNotifier.js | 
| =================================================================== | 
| --- a/test/filterNotifier.js | 
| +++ b/test/filterNotifier.js | 
| @@ -45,16 +45,22 @@ | 
|  | 
| function removeListener(listener) | 
| { | 
| filterNotifier.off("foo", listener); | 
| } | 
|  | 
| function compareListeners(test, testDescription, list) | 
| { | 
| +  test.equal(filterNotifier.hasListeners(), list.length > 0, testDescription); | 
| +  test.equal(filterNotifier.hasListeners("foo"), list.length > 0, | 
| +             testDescription); | 
| + | 
| +  test.equal(filterNotifier.hasListeners("bar"), false, testDescription); | 
| + | 
| let result1 = triggeredListeners = []; | 
| filterNotifier.emit("foo", {bar: true}); | 
|  | 
| let result2 = triggeredListeners = []; | 
| for (let observer of list) | 
| observer({bar: true}); | 
|  | 
| test.deepEqual(result1, result2, testDescription); | 
|  |