function it_throws_an_exception_if_trying_to_another_listener_with_the_same_name(ListenerInterface $listener, ListenerInterface $anotherListener)
{
$listener->getName()->willReturn('listener_name');
$anotherListener->getName()->willReturn('listener_name');
$this->addListener($listener);
$this->shouldThrow(\InvalidArgumentException::class)->during('addListener', [$listener]);
$this->shouldThrow(\InvalidArgumentException::class)->during('addListener', [$anotherListener]);
}
/**
* @param ListenerInterface $listener
*/
public function addListener(ListenerInterface $listener)
{
Assert::keyNotExists($this->listeners, $listener->getName(), 'Listener with name "%s" is already registered.');
$this->listeners[$listener->getName()] = $listener;
}
