Neos\Flow\Mvc\Controller\Arguments::getArgumentNames PHP Méthode

    public function getArgumentNames()
    {
        return array_keys($this->argumentNames);
    }

 /**
  * @test
  */
 public function getArgumentNamesReturnsNamesOfAddedArguments()
 {
     $arguments = new Arguments();
     $arguments->addNewArgument('first');
     $arguments->addNewArgument('second');
     $arguments->addNewArgument('third');
     $expectedArgumentNames = ['first', 'second', 'third'];
     $this->assertEquals($expectedArgumentNames, $arguments->getArgumentNames(), 'Returned argument names were not as expected.');
 }