Object-Oriented Legacy System Trace-based Logic Testing

DOI
Publisher DOI
Abstract
When reengineering legacy systems, it is crucial to assess if the legacy behavior has been preserved or how it changed due to the reengineering effort. Ideally if a legacy system is covered by tests, running the tests on the new version can identify potential differences or discrepancies. However, writing tests for an unknown and large system is difficult due to the lack of internal knowledge. It is especially difficult to bring the system to an appropriate state. Our solution is based on the acknowledgment that one of the few trustable piece of information available when approaching a legacy system is the running system itself. Our approach reifies the execution traces and uses logic programming to express tests on them. Thereby it eliminates the need to programatically bring the system in a particular state, and handles the test-writer a high-level abstraction mechanism to query the trace. The resulting system, called TESTLOG, was used on several real-world case studies to validate our claims.
Date Issued
2006
Publication Type
Conference Item
Subject(s)
Language(s)
en
Author(s)
Wuyts, Roel
Additional Credits
Journal
European Conference on Software Maintenance and Reengineering. Proceedings
Publisher
IEEE Computer Society
ISSN
1534-5351
ISBN
0-7695-2536-9
Title of Event
Access(Rights)
restricted
Show full item