Non-Intrusive Debugging Methods of TTCN-3

TTCN-3(Testing and Test Control Notation Version 3) is a formalized testing description language,which is widely used in protocol testing and other testing fields.As TTCN-3 test suites are more and more complex,it becomes difficult for testers to locate the place which causes testing failures without debugger's help.This paper presents a non-intrusive TTCN-3 debugging method which uses third-party debugger to debug TTCN-3 complier generated target code.In addition,the method integrates statement mapping and symbol analysis algorithms to implement basic debugging functionality.Experiments show that this method imposes little influence on testing system and has a better performance while debugging large-scale test suite.