Learn how to practise Test-Driven Development with the red-green-refactor cycle, practical tips, and common pitfalls to avoid.
Test-Driven Development is a software development practice in which you write a failing test before writing any production code. The discipline was popularised by Kent Beck as part of Extreme Programming and has since become one of the most widely discussed practices in professional software development. Done consistently, TDD changes not just how you test but how you design.The Red-Green-Refactor CycleTDD operates in three repeating steps. First, write a failing test (red). The test describes a small, specific piece of behaviour you want to implement. It fails because the code does not exist ...
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