getRequestService() in testbox

we have Application with 3.8 coldbox frame work and we are trying to use testbox now to run the existed mxunit test cases. Everything seems fine except it does not seem finding the context decorator we have. The error says: 'request_service is not defined" we are using the request_service.getContext() in the query(DAO) and we are getting error as"request_service is not defined" when we run the test case.

The setup we have with previous coldbox version was:

event = getRequestContext();
controller = getController();
rs = getController().getRequestService();
beanFactory = controller.getPlugin(‘beanFactory’);

Can you guide us what can replace these variables?

Thank you for your help.