A Case Study in Testing Distributed Systems

  • Authors:
  • Brad Long;Paul Strooper

  • Affiliations:
  • -;-

  • Venue:
  • DOA '01 Proceedings of the Third International Symposium on Distributed Objects and Applications
  • Year:
  • 2001

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Abstract

Abstract: This paper describes a case study in the testing of distributed systems. The software under test is a middleware system developed in Java. The full test life cycle is examined including unit testing, integration testing, and system testing. Where possible, traditional tools and techniques are used to carry out the testing. One aspect where this is not possible is the testing of the low-level concurrency, which is often overlooked when testing commercial distributed systems, since the middleware or application server is already developed by a third-party and is assumed to operate correctly. This paper examines testing the middleware system itself, and therefore, a method for testing the concurrency properties of the system is used. The testing revealed a number of faults and design weaknesses, and showed that, with some adaptation, traditional tools and techniques go a long way in the testing of distributed applications.