public function setUp()
 {
     parent::setUp();
     $this->mockContentObject = $this->getMock('TYPO3\\CMS\\Frontend\\ContentObject\\ContentObjectRenderer', array(), array(), '', FALSE);
     $this->mockConfigurationManager = $this->getMock('TYPO3\\CMS\\Extbase\\Configuration\\ConfigurationManagerInterface');
     $this->mockConfigurationManager->expects($this->any())->method('getContentObject')->will($this->returnValue($this->mockContentObject));
     $this->viewHelper = $this->getMock('TYPO3\\CMS\\Fluid\\ViewHelpers\\Format\\CropViewHelper', array('renderChildren'));
     $this->viewHelper->injectConfigurationManager($this->mockConfigurationManager);
     $this->viewHelper->expects($this->once())->method('renderChildren')->will($this->returnValue('Some Content'));
 }