Study On The Generating Methodology Of TTCN-3 Test Suite Based On MSC

With the development of testing technology and internet technology, protocol testing is gaining increasingly acceptance because protocol testing is the most effective method to achieve the correctness and validity of the protocol implementation. And protocol conformance testing verifies the conformance between protocol implementation and protocol standard and it is the foundation of protocol testing. TTCN-3 (Testing and Test Control Notation version 3) is a new implementation of testing description language. It is one of the base elements of protocol conformance testing standards and it could test protocols with all levels.It is mainly studied the TTCN-3 standard and its graphical format (GFT) in this paper, and it introduced a method of test suite generation which based on Message Sequence Charts (MSC). The main purpose of the study is to generate a test suite based on the graphical format and then enhance the intelligibility of the test suite generation process and improve the test efficiency. Besides that, a tool of transfer between TTCN-3 core language and GFT diagram is carried out. It can edit a GFT diagram with formalization language, thereby, the user could edit a test case in the process of test implementation and generate the test code based on the diagram.At last, a mobile game software is used to analyzing the test process of this tool. It can concluded that the tester could get the flows of test cases if only he understands the requirements of a test work and knows the graphical symbol of GFT. After that, the test suite could be run as long as the definition part of the test suite appended. So it can improve test efficiency to make the development of test suite become more convenient and easier.