Design And Develop Of Simulating Environment For Protocol Conformance Test Framework

Along with the computer network technology's unceasing development, the network application is also getting more and more widespread. The International Standardization Organization has formulated many related standards. Due to different understanding of protocol, so the realizations of the agreement are also prone to error, thus creates the network application system's quality problem. Therefore, the Protocol Conformance Test is very important. Also as a result of network environment's particularity, is unable to carry on the large-scale examination, therefore to establish simulation environment is the best way to exam the Conformance Test.TTCN (Tree and Tabular Combined Notation) was made in 1990 by ETSI, ITU-T, ISO and other international organizations. In view of the special request of adpter and codec in the simulate environment, study the realize technology based on TTCN-3 test system frame, and combined with the test requires of a class of network protocol, realize a general adapter and codec, in order to achieve automation test of the applications of a class of prococol. Does for the case, study on the HTTP protocol's simulation automation testing environment, has realized the HTTP protocol application software testing tool, and to carries on the test based on the HTTP agreement's network game software, confirmed the validity of the realize plan.This paper analyses the conformance test based on TTCN-3, devise Codec and Adaptor for specific problems. Through the establishment of the simulation environment, it aims to simplify the testing process. Major implementations include: one cyber game test based on HTTP, the automatic guide of codec of the abstract test suite based on information, generation of test log and test report and verification by two cases. In addition the paper also improves and expands the standard of GFT, which will dramatically reduce the codes in the testing process.With this system the tester will no longer need to develop the Adaptor and Codec and other parts irrelevant to the tested process. In this way the developers can spend more time in generating test cases; automatic guide of codec for different abstract test suites provides more convenience for users; improved image editing module can better meet the demand of testers to make the test more efficient.