@Test
 public void testGetRecentlyModifiedJson() throws Exception {
   String recentlyModifiedJson = alfrescoDocumentsService.getRecentlyModifiedJson("userId");
   ObjectMapper mapper = new ObjectMapper();
   List<Site> list = new ArrayList<Site>();
   List<Site> recentlyModified =
       mapper.readValue(recentlyModifiedJson, new TypeReference<List<Site>>() {});
   int number = 0;
   for (Site site : recentlyModified) {
     number += site.getRecentModifiedDocuments().size();
   }
   assertEquals(3, number); // document1 + document2 + document3
 }