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Design Principles in Test First Programming PDF Print E-mail
Written by Jay Flowers   
Tuesday, 20 June 2006

This article is illustrates some of the relationship between testability and Design Principles.  It uses Robert Martin's classic copy program example to show how by simply valuing testability will cause the evolution of the copy program to follow the Open/Closed, Liskov
Substitution Principle and Dependency Inversion principles.

Author Erik Meade


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