// setup parameters
Map<String, String> params = new HashMap<String, String>();
params.put("uuid", uniqueId);
// run preprocess
preprocessingUnitVFS.preprocess(new TestHttpServletRequest(params), null, new TestIDiagramProfile(repository), null, false, null, null);
// validate results
Collection<Asset> globalAssets = repository.listAssets("/global");
assertNotNull(globalAssets);
assertEquals(29, globalAssets.size());