Chapter 16Testing Legacy Code
You wonât always get to start from scratch.
Thereâs a strong possibility that youâll need to bring your testing skills to bear on a codebase that already exists. A codebase thatâgaspâmay not have a complete or accurate test suite to guide you.
Not all that long ago, there were no Rails legacy projects. Now there are Rails codebases that are old enough to attend kindergarten and beyond. These codebases tend to be large, and almost by definition they arenât using the latest tools. All the advice in this book so far is well and good, but what if youâre not starting your TDD experience with a new application? How does testing change when youâre dealing with a legacy codebase?
Entire books have been ...
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