c# - Can I define implementation of methods on Rhino Mocked objects? -

with rhino.mocks, once mock interface can:

• set "return" values non void methods on mocked object
• inspect how , values methods called with

however, possible selectively define implementation methods on mocked objects?

ideally i'd (rhinoimplement rhino extension i'm hoping exists!):

var messages = new list<imessage>();  ibus bus = mockrepository.generatemock<ibus>();  bus.rhinoimplement(b => b.send(arg<imessage>.is.anything), imess => messages.add(imess));  //now run test on class uses ibus  //now, can inspect local (list<imessage>)messages collection 

update answer

thanks patrick's answer below, correct code achieve above is:

var messages = new list<imessage>();  ibus bus = mockrepository.generatemock<ibus>();  bus     .expect(b => b.send(arg<imessage>.is.anything))     .whencalled(invocation => messages.add((imessage)invocation.arguments[0]))     .repeat.any() //the repeat part because method might called multiple times  //now run test on class uses ibus  //now, can inspect local (list<imessage>)messages collection 

use "whencalled" method:

rhino mocks - set property if method called