/**
  * @see https://bugs.php.net/bug.php?id=62976
  *
  * This bug affects:
  *  - The PHP 5.3 branch for versions < 5.3.18
  *  - The PHP 5.4 branch for versions < 5.4.8
  *  - The PHP 5.5 branch is not affected
  */
 public function testWorkaroundForPhpBug62976()
 {
     $dispatcher = new ContainerAwareEventDispatcher(new Container());
     $dispatcher->addListener('bug.62976', new CallableClass());
     $dispatcher->removeListener('bug.62976', function () {
     });
     $this->assertTrue($dispatcher->hasListeners('bug.62976'));
 }