java - How can I test this method using Mockito? -

i have method complex interaction between different objects test using mockito framework. appreciate guidelines. know code not mean much.

both getinstance() methods static. mock obj3 , make if statement return true in test.

public myrequest getrequest(objectone obj1, objecttwo obj2) {      objectthree obj3 = factoryone.getinstance().getlist().getobject(obj2.getid());       if(factorytwo.getinstance().isflagset("flag")){         ....     }       return new myrequest(....); } 

actually, method invoked value obj3 variable not straight testable.

the root cause getinstance() static method.

in fact, factoryone.getinstance() should dependency of class under test , returned object should interface

in way, can define constructor sets dependency:

public myclass(foointerface foo){    this.foo = foo; } 

and replace :

objectthree obj3 = factoryone.getinstance().getlist().getobject(obj2.getid()); 

by :

objectthree obj3 = foo.getlist().getobject(obj2.getid()); 

in application code, invoke constructor :

myclass c = new myclass(factoryone.getinstance().getlist()); 

and in test code, create mock foo interface, set class under test via constructor :

foo foomock = mockito.mock(foo.class); myclass myclassundertest = new myclass(foomock); 

then record mock behavior getlist() return mocked object desired value invocation getobject() in test.