hi i need help in sort in out issue in EDI/IDOC order01

hi sap gurus

my developer developed the code for idoc order01- FM: idoc_input_orders- here update the logic in the user exit.

can anybody tell me, what test data should i have to provide to test the inbound processing, c<b>an anybody tell me how to test the inbound process step by step.</b>

thanks in advance

samsd