Analyzing the impact of protocol changes on tests

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


Protocols governing communication among system components evolve during design and maintenance and need to be re-tested. For faster testing turnaround time, it is important that the consistency of the testing infrastructure with the protocol be preserved across changes. In this paper, we propose a state exploration based approach to identify the impacts of protocol changes on a given set of protocol tests. Protocols are modeled as a network of communicating finite state machines exchanging messages over bounded queues. Each machine denotes the behavior of an individual protocol component (controller). A protocol test is modeled as a sequence of inputs from the environment to the protocol controllers in an execution starting from a stable protocol state. A notion of consistency of a test relative to a protocol is introduced. Conditions under which a protocol change requires changing a test to preserve the consistency of the test are identified. Changes consisting of multiple atomic updates are analyzed to remove redundancies and their impact on tests is studied. A by-product of the proposed approach is a classification of tests based on how they are impacted by protocol changes, which can help users in regression test selection.

Original languageEnglish (US)
Title of host publicationTesting of Communicating Systems - 18th IFIP TC 6/WG 6.1 International Conference, TestCom 2006, Proceedings
EditorsAli Y. Duale, M. Ümit Uyar, Mariusz A. Fecko
PublisherSpringer Verlag
Number of pages16
ISBN (Electronic)9783540341840
ISBN (Print)3540341846, 9783540341840
StatePublished - 2006
Event18th IFIP TC 6/WG 6.1 International Conference on Testing of Communicating Systems, TestCom 2006 - New York, NY, United States
Duration: May 16 2006May 18 2006

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3964 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference18th IFIP TC 6/WG 6.1 International Conference on Testing of Communicating Systems, TestCom 2006
Country/TerritoryUnited States
CityNew York, NY


  • Changes
  • Communicating finite state machines
  • Evolution
  • Protocol
  • Test consistency

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


Dive into the research topics of 'Analyzing the impact of protocol changes on tests'. Together they form a unique fingerprint.

Cite this