def METHOD_NAME(self):
    # meta index -r
    result = self.fc.deleteMetadataField("MetaInt6")
    self.assertTrue(result["OK"])
    result = self.fc.deleteMetadataField("TestDirectory6")
    self.assertTrue(result["OK"])
    # remove the MultiVOFileCatalog
    self.fc.removeCatalog("MultiVOFileCatalog")
    # delete a sole replica: dirac-dms-remove-files
    result = self.dirac.removeFile(self.lfn5)
    self.assertTrue(result["OK"])
    os.remove(self.fname)