Madhuri R Marri, Tao Xie, Nikolai Tillmann, Jonathan de Halleux, and Wolfram Schulte
Unit testing is a technique of testing a single unit of a program in isolation. The testability of the unit under test can be reduced when the unit interacts with its environment. The construction of high-covering unit tests and their execution require appropriate interactions with the environment such as a file system or database. To help set up the required environment, developers can use mock objects to simulate the behavior of the environment. In this paper, we present an empirical study to analyze the use of mock objects to test file-system-dependent software. We use a mock object of the FileSystem API provided with the Pex automatic testing tool in our study. We share our insights gained on the benefits of using mock objects in unit testing and discuss the faced challenges.
In Proc. 4th International Workshop on Automation of Software Test (AST 2009), Business and Industry Case Studies
Publisher IEEE Computer Society
Copyright © 2007 IEEE. Reprinted from IEEE Computer Society. This material is posted here with permission of the IEEE. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to email@example.com. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.