profile.setSignatureFileVersion(26);
profile.setProfileSpec(profileSpec);
when(profileDao.findProfileResourceNodes(null)).thenReturn(Collections.EMPTY_LIST);
profileInstanceManager.setProfile(profile);
ReferenceDataServiceImpl referenceDaoImplMock = mock(ReferenceDataServiceImpl.class);
profileInstanceManager.setReferenceDataService(referenceDaoImplMock);
profileInstanceManager.initProfile(new File("test_sig_files/DROID_SignatureFile_V26.xml").toURI());
Collection<ProfileResourceNode> nodes = profileInstanceManager.findRootProfileResourceNodes();