diff --git a/Modules/DiffusionImaging/FiberTracking/Testing/mitkGibbsTrackingTest.cpp b/Modules/DiffusionImaging/FiberTracking/Testing/mitkGibbsTrackingTest.cpp
index 5f1b3d0d88..a6ff23ad03 100644
--- a/Modules/DiffusionImaging/FiberTracking/Testing/mitkGibbsTrackingTest.cpp
+++ b/Modules/DiffusionImaging/FiberTracking/Testing/mitkGibbsTrackingTest.cpp
@@ -1,98 +1,97 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #include <mitkTestingMacros.h>
 #include <mitkImageCast.h>
 #include <mitkQBallImage.h>
 #include <mitkBaseDataIOFactory.h>
 #include <mitkFiberTrackingObjectFactory.h>
 #include <mitkDiffusionCoreObjectFactory.h>
 #include <itkGibbsTrackingFilter.h>
 #include <mitkFiberBundleX.h>
 
 using namespace mitk;
 
 /**Documentation
  *  Test for gibbs tracking filter
  */
 int mitkGibbsTrackingTest(int argc, char* argv[])
 {
   MITK_TEST_BEGIN("mitkGibbsTrackingTest");
 
   MITK_TEST_CONDITION_REQUIRED(argc>4,"check for input data")
 
   QBallImage::Pointer mitkQballImage;
   Image::Pointer mitkMaskImage;
   mitk::FiberBundleX::Pointer fib1;
 
   try{
     MITK_INFO << "Q-Ball image: " << argv[1];
     MITK_INFO << "Mask image: " << argv[2];
     MITK_INFO << "Parameter file: " << argv[3];
     MITK_INFO << "Reference bundle: " << argv[4];
 
     RegisterDiffusionCoreObjectFactory();
     RegisterFiberTrackingObjectFactory();
 
-    // test if fib1 can be read
     const std::string s1="", s2="";
     std::vector<mitk::BaseData::Pointer> infile = mitk::BaseDataIO::LoadBaseDataFromFile( argv[1], s1, s2, false );
     mitkQballImage = dynamic_cast<mitk::QBallImage*>(infile.at(0).GetPointer());
     MITK_TEST_CONDITION_REQUIRED(mitkQballImage.IsNotNull(),"check qball image")
 
     infile = mitk::BaseDataIO::LoadBaseDataFromFile( argv[2], s1, s2, false );
     mitkMaskImage = dynamic_cast<mitk::Image*>(infile.at(0).GetPointer());
     MITK_TEST_CONDITION_REQUIRED(mitkMaskImage.IsNotNull(),"check mask image")
 
     infile = mitk::BaseDataIO::LoadBaseDataFromFile( argv[4], s1, s2, false );
     fib1 = dynamic_cast<mitk::FiberBundleX*>(infile.at(0).GetPointer());
     MITK_TEST_CONDITION_REQUIRED(fib1.IsNotNull(),"check fiber bundle")
 
     typedef itk::Vector<float, QBALL_ODFSIZE> OdfVectorType;
     typedef itk::Image<OdfVectorType,3> OdfVectorImgType;
     typedef itk::Image<float,3> MaskImgType;
     typedef itk::GibbsTrackingFilter<OdfVectorImgType> GibbsTrackingFilterType;
 
     OdfVectorImgType::Pointer itk_qbi = OdfVectorImgType::New();
     mitk::CastToItkImage<OdfVectorImgType>(mitkQballImage, itk_qbi);
 
     MaskImgType::Pointer itk_mask = MaskImgType::New();
     mitk::CastToItkImage<MaskImgType>(mitkMaskImage, itk_mask);
 
     GibbsTrackingFilterType::Pointer gibbsTracker = GibbsTrackingFilterType::New();
     gibbsTracker->SetQBallImage(itk_qbi.GetPointer());
     gibbsTracker->SetMaskImage(itk_mask);
     gibbsTracker->SetDuplicateImage(false);
     gibbsTracker->SetRandomSeed(1);
     gibbsTracker->SetLoadParameterFile(argv[3]);
     gibbsTracker->Update();
 
     mitk::FiberBundleX::Pointer fib2 = mitk::FiberBundleX::New(gibbsTracker->GetFiberBundle());
     MITK_TEST_CONDITION_REQUIRED(fib1->Equals(fib2), "check if gibbs tracking has changed");
 
     gibbsTracker->SetRandomSeed(0);
     gibbsTracker->Update();
     fib2 = mitk::FiberBundleX::New(gibbsTracker->GetFiberBundle());
     MITK_TEST_CONDITION_REQUIRED(!fib1->Equals(fib2), "check if gibbs tracking has changed after wrong seed");
   }
   catch(...)
   {
     return EXIT_FAILURE;
   }
 
   // always end with this!
   MITK_TEST_END();
 }