public function testAddCallbackListenerForAdhocRegistration()
{
$eventDispatcher = $this->getMockBuilder('\\Onoi\\EventDispatcher\\EventDispatcher')->disableOriginalConstructor()->getMock();
$eventDispatcher->expects($this->once())->method('addListener')->with($this->equalTo('foo'), $this->anything());
$instance = new EventHandler($eventDispatcher);
$instance->addCallbackListener('foo', function () {
});
}
