/**
* {@inheritdoc}
*/
public function hasHandlers(string $eventType = null) : bool
{
if ($eventType === null) {
return (bool) count($this->serviceIds) || (bool) count($this->handlers);
}
if (isset($this->serviceIds[$eventType])) {
return true;
}
return parent::hasHandlers($eventType);
}
public function test_that_remove_handler_does_not_error_when_handler_not_registered()
{
$this->dispatcher->removeHandler('foo', function () {
});
$this->assertFalse($this->dispatcher->hasHandlers());
}