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xUnit Test Patterns: Refactoring Test Code by Gerard Meszaros

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Introduction

It has been said before but it bears repeating: Writing defect-free software is exceedingly difficult. Proof of correctness of real systems is still well beyond our abilities, and specification of behavior is equally challenging. Predicting future needs is a hit or miss affair—we'd all be getting rich on the stock market instead of building software systems if we were any good at it!

Automated verification of software behavior is one of the biggest advances in development methods in the last few decades. This very developer-friendly practice has huge benefits in terms of increasing productivity, improving quality, and keeping software from becoming brittle. The very fact that so many developers are now doing it of their own free ...

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