Method and apparatus for regression testing of application logic

Details Method and apparatus for regression testing of application logic Method and apparatus for regression testing of application logic

1996-04-30

1998-05-26

Beausoliel, Jr., Robert W.

39518314, 39518321, G06F 11263

Patent

active

057580626

ABSTRACT:
A method and system for regression testing of application logic within a software system. Software architecture can be separated into a presentation layer (e.g., user interface), an application layer (e.g., business logic), and a data/storage layer. Within the novel testing system, communication interfaces between the presentation layer and the application layer are identified such that user initiated commands ("events") passed from the presentation layer to the application layer are recorded into a test playback event file. During test playback event recordation, differences in the state of the application layer of a reference program are collected into a reference state log file. To test a program, the recorded events of the test playback event file are played back and applied directly to its application layer. After each event, the differences in the state of the program are collected into a test state log file. The reference and test state log files are compared and differences are stored in an error or summary difference file. By recording events that enter the application layer, in lieu of the user entered commands that enter the presentation layer, the novel testing system is insensitive to changes in the presentation layer and allows more direct testing and error detection of the application layer. By recording differences in the state of the application layer on an event by event basis, in lieu of recording differences in information presented to the user, the novel system allows more effective error detection and error isolation of the application layer.

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