Research And Realization Of A Test Environment Based On GFT

TTCN-3 is used more and more in protocol conformance test. The graphical presentation of TTCN-3 brings user a friendly graphical description manner.The standard TTCN-3 GFT standard can only describe the corresponding graphical representation of test logic. And the automatic generated test scripts only contain the part of the logic. This paper extends the GFT standard, which makes the standard not only defines the graphical representation of the test logic, but also defines the graphical representation of test data, so as to provide a solid basis for automatically generating complete test script.The developed GFT modeling tool, which is based on the expanded GFT standard, supports the modeling of TTCN-3 test scripts and it can transform the model to TTCN-3 core language script. To support the view of existed TTCN-3 test scripts, the tool can transform it to its corresponding GFT representation, which used the LoongTesting compiling front end. Moreover, the log of ETS can be parsed to get the graphical representation and it will be good for understanding the program execute logic and error location.The realized graphical modeling tool applied in BookStore testing and it generated the fullly required testcases, which up to110 and the lines of code is about 20, 000 and the test suite is used in the project cooperated with Synopsys successfully, which improves the test effieciency by nearly 50% compared with the China Mobile NFC test. The open source SIP test scripts (which has 528 testcases and the lines of code is about 60,000) is transformed to its graphical representation, which makes it much easier to understand the test scripts and the functionality and robustness of the tool have all been verified. The test effieciency has been greatly improved too.