public function evaluateChildNodes(\TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface $renderingContext)
 {
     $identifiers = $this->variableContainer->getAllIdentifiers();
     $callElement = array();
     foreach ($identifiers as $identifier) {
         $callElement[$identifier] = $this->variableContainer->get($identifier);
     }
     $this->callProtocol[] = $callElement;
 }
 /**
  * @test
  */
 public function addedObjectsExistInAllIdentifiers()
 {
     $object = 'StringObject';
     $this->variableContainer->add('variable', $object);
     $this->assertEquals($this->variableContainer->getAllIdentifiers(), array('variable'), 'Added key is not visible in getAllIdentifiers');
 }