public function testGetFactory_RunnableCallback()
{
$callback = function () {
exit;
};
$data = array('worker' => $callback);
$config = new Config($data);
$factoryMethod = $config->getFactoryMethod();
$this->assertTrue(\is_callable($factoryMethod));
$callback1 = \call_user_func($factoryMethod);
$this->assertEquals($callback, $callback1);
}