public function setUp()
{
parent::setUp();
$this->viewHelper = $this->getAccessibleMock(\Neos\FluidAdaptor\ViewHelpers\Format\IdentifierViewHelper::class, array('renderChildren'));
$this->injectDependenciesIntoViewHelper($this->viewHelper);
$this->mockPersistenceManager = $this->createMock(\Neos\Flow\Persistence\PersistenceManagerInterface::class);
$this->viewHelper->_set('persistenceManager', $this->mockPersistenceManager);
}