41. Testing Legacy Code - coming soon

💡 Most of the code you’ll encounter in the wild is existing, brownfield code. Much of it is untested. To safely refactor, add, change, or remove features, we must first establish a basis of tests that enable us to be productive without worry of breaking something. We learn how to introduce tests to previously untested code using techniques such as seams, Characterization tests, and Golden Master

Howdy 👋

This is an online wiki and book about the basics of software design and architecture with TypeScript by Khalil Stemmler, Developer Advocate @ Apollo GraphQL .

This book’s mission is to teach developers the essential skills and practices to write testable, flexible, and maintainable code.

You can read more about the learning journey in the "Software Design and Architecture Roadmap 🖼️".

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If you’ve already purchased the book, click here to re-send your link. You can read the online wiki or download a copy of the book in PDF, EPUB, and Kindle versions.

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You can read the intro to the book for free and visit solidbook.io to buy the book/wiki (it's currently on pre-sale for 33% off)! For recent updates, click here. To get an idea of my writing, read some of my best free content here and here.

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