java - How to test nested Object in with Spring MockMVC? -


i have controller post method test. method post book reader's reading list. grab authenticated user reader. book class has field reader type. following code uses contains(samepropertyvaluesas(expectedbook)), reader instance location different expectedreader created obviously.

what correct way test such nested object in mockmvc?

@test @withuserdetails("z") public void addbookshouldshowthebookinreadinglist() throws exception {      final string booktitle = "book a";     final string bookauthor = "jk";     final string isbn = "1234567890";     final string description = "yet book.";      mockmvc.perform(post("/readinglist")             .contenttype(mediatype.application_form_urlencoded)             .param("title", booktitle)             .param("author", bookauthor)             .param("isbn", isbn)             .param("description", description)             .with(csrf()))         .andexpect(status().is3xxredirection())         .andexpect(header().string("location", "/readinglist"));       reader expectedreader = new reader();     expectedreader.setusername("z");     expectedreader.setpassword("test");     expectedreader.setfullname("z h");      book expectedbook = new book();     expectedbook.setid(1l);     expectedbook.settitle(booktitle);     expectedbook.setauthor(bookauthor);     expectedbook.setisbn(isbn);     expectedbook.setdescription(description);     expectedbook.setreader(expectedreader);      mockmvc.perform(get("/readinglist"))         .andexpect(status().isok())         .andexpect(model().attributeexists("books"))         .andexpect(model().attribute("books", hassize(1)))         .andexpect(model().attribute("books", contains(samepropertyvaluesas(expectedbook))));  }

update - additional post signature.

@controller @requestmapping(value = "/readinglist") public class readinglistcontroller {      private readinglistservice readinglistservice;     private versionconfig versionconfig;      @autowired     public readinglistcontroller(final readinglistservice readinglistservice,                                  final versionconfig versionconfig) {         this.readinglistservice = readinglistservice;         this.versionconfig = versionconfig;     }      @requestmapping(value = "", method = requestmethod.get)     public string readersbooks(reader reader, model model) {         readinglistservice.findbyreader(reader)             .ifpresent(books -> {                 model.addattribute("books", books);                 model.addattribute("reader", reader);                 model.addattribute("releaseid", versionconfig.getreleaseid());             });          return "readinglist";     }      @requestmapping(value = "", method = requestmethod.post)     public string addtoreadinglist(reader reader, book book) {         book.setreader(reader);         readinglistservice.save(book);         return "redirect:/readinglist";     } }

so there hastostring() matcher used in hamcrast done.

mockmvc.perform(get("/readinglist"))         .andexpect(status().isok())         .andexpect(model().attributeexists("books"))         .andexpect(model().attribute("books", hassize(1)))         .andexpect(model().attribute("books", contains(hastostring(expectedbook.tostring()))));

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