6th Workshop on
Validation, Analysis and Evolution of Software Tests

March 21, 2023 | co-located with SANER 2023, hybrid event: Online & Macau, China

Call for Papers

Aims, scope and topics of interest.

Software projects accumulate large sets of test cases, encoding valuable expert knowledge about the system under test to the extent of many person years. Over time, the reliability of the tests decreases, and they become difficult to understand and maintain. Extra effort is required for repairing broken tests and for adapting test suites and models to evolving software systems.

The International Workshop on Validation, Analysis and Evolution of Software Tests (VST) is a unique event bringing together academics, industrial researchers, and practitioners for exchanging experiences, solutions, and new ideas in applying methods, techniques and tools from software analysis, evolution and re-engineering to advance the state of the art in test development and maintenance.

The workshop invites high quality submissions related, but are not limited, to:

 ●  Test code analysis and validation

 ●  Test execution monitoring and visualization

 ●  Test results analysis and bug reporting

 ●  Fault detection and localization

 ●  Change impact analysis for software tests

 ●  Co-evolution of tests and code

 ●  Automated repair for test code

 ●  Clone detection for tests

 ●  Metamorphic relations for testing

 ●  Test generation and amplification

 ●  Regression test selection and prioritization

 ●  Test minimization and simplification

 ●  Model-based testing

 ●  Combinations of the topics above

  Download Call for Papers (txt)

For previous editions of this workshop visit: VST 2022, VST 2021, VST 2020, VST 2018, and VST 2016.

Important Dates

Anywhere on earth.

Abstract submission deadline December 11, 2022 AoE

Paper submission deadline December 18, 2022 AoE

Notifications January 8, 2023

Camera Ready January 15, 2023

Workshop March 21, 2023


Instructions and submission site.

We encourage submissions on the topics mentioned above with a page limit of max 8 pages, IEEE format. In addition, we will also allow position papers and tool demo papers of two to four pages.

Papers will be by reviewed by at least three program committee members following a full double-blind review process. Paper selection is based on scientific originality, novelty, and the potential to generate interesting discussions. Accepted papers will be published in the IEEE Digital Library along with the SANER proceedings.

Submission Instructions

  • Papers must not exceed the page limit of 8 pages (including all text, references, appendices, and figures), position papers and tool demos 2-4 pages

  • Papers must conform to the IEEE formatting guidelines for conference proceedings

  • Submissions should be prepared for a full double-blind review process (author names and affiliations should be omitted and references to own work should be in the third person)

  • Papers must comply with the IEEE policy on authorship. Papers must be original work that has neither appeared elsewhere for publication nor which is under review for another publication

  • Submissions are required in PDF format via EasyChair at https://easychair.org/conferences/?conf=vst2023

  Submit your paper at: VST 2023 EasyChair submission site


Location and schedule.

ZOOM - 07:30-12:15 UTC https://us06web.zoom.us/j/81894290327

Macau - 15:30-20:15 CST (UTC+8)
Vienna - 08:30-13:15 CET (UTC+1)
London - 07:30-08:15 GMT (UTC+0)
New York - 03:30-08:15 EST (UTC-5)
. . . or find your location


Evolutionary Testing of Web APIs with EvoMaster (Keynote)
Dr. Andrea Arcuri

Abstract - In this talk, I will present the open-source test generation tool EvoMaster (www.evomaster.org). It targets system test generation for web services, such as REST, GraphQL and RPC APIs. EvoMaster uses advanced evolutionary techniques to evolve high coverage test cases. It can be used for both black-box and white-box testing. For white-box testing, EvoMaster employs many different heuristics to improve performance, like testability transformations, taint analysis and SQL handling/monitoring. EvoMaster has been used to test millions of lines of code, finding thousands of real faults in existing APIs.

Bio - Dr. Andrea Arcuri is a Professor of Software Engineering at Kristiania University College and OsloMet, Oslo, Norway. His main research interests are in software testing, especially test case generation using evolutionary algorithms. Having worked 5 years in industry as a senior engineer, a main focus of his research is to design novel research solutions that can actually be used in practice. Prof. Arcuri is the main-author of EvoMaster and a former co-author of EvoSuite, which are open-source tools that can automatically generate test cases using evolutionary algorithms.

17:00-17:15 CST (09:00-09:15 UTC) - Chat & Break
19:15-19:30 CST (11:15-11:30 UTC) - Chat & Break


Chairs and program committee.

Program Committee

Wasif Afzal, Mälardalen University, Sweden

Pekka Aho, Open University, The Netherlands

Cyrille Artho, KTH Royal Institute of Technology, Sweden

Serge Demeyer, University of Antwerp, Belgium

Michael Felderer, University of Innsbruck, Austria

Angelo Gargantini, University of Bergamo, Italy

Rubing Huang, Macau University of Science and Technology, China

Daniel Lehner, Johannes Kepler University Linz, Austria

Dietmar Pfahl, University of Tartu, Estonia

Michael Wahler, ZHAW Zurich University of Applied Sciences, Switzerland

Xiaoyuan Xie, School of Computer Science, Wuhan University, China

Fiorella Zampetti, University of Sannio, Italy

Man Zhang, Kristiania University College, Norway


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