unit testing - How to mock java methods of superclass using powermock or any mock tool? -

super class

public class basicdao {     public object createquery() {         return new object();     } } 

implementation

public class mydao implements basicdao {     public object getmydata() {         object obj = createquery();         // more code...         return ...;     } } 

i need test getmydata() method , want mock/suppress createquery() method cos fail on test env.

thanks!

don't tests way. called partial mocking , wrong, means code have been written not using object oriented design. 1 should favor composition on inheritance.

nevertheless dao object represents boundary of system, i.e.

• one side object oriented
• one side relational

in case should write integration tests,

• insert data in db, actual instance or in-memory instance (h2, hsqldb, ...)
• prepare data, there's plenty possibilities here (dbunit, dbsetup, ...)
• configure , run dao tests on database

it may require more setup , more time run better in long run.

• more robust mapping testing
• easier change technical implementation, without changing tests
• run against database, can detect configuration issues/challenges sooner, , make sure don't break 3 years later

---

also answer of @user3386493 technically correct i'd suggest use kind of stubbing spies (otherwise actual method code executed) :

mydao daospy = mockito.spy(new mydao()); doreturn(new object()).when(daospy).createquery();