Tests give you confidence that your code is free of bugs, makes it safe to refactor, prevents regressions, and keeps you productive in the long term.
The easiest way to write testable code is to write the test first.
In this introduction to Test-Driven Development (TDD), we learn about the basics of TDD and how to implement the Red-Green-Refactor loop using TypeScript and Jest.
0:00 Intro
0:13 Why write tests?
1:00 Why don't developers write tests more often?
1:26 Testing is architectural
2:29 What is TDD & how does it work?
3:07 TDD is a process
3:36 Double Loop TDD
3:50 TDD Demonstration
12:18 Conclusion
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LEARN TO WRITE TESTABLE, FLEXIBLE, MAINTAINABLE CODE (BLOG)
https://khalilstemmler.com
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SIMPLE TYPESCRIPT STARTER (REPO): https://github.com/stemmlerjs/simple-typescript-starter
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SOLIDBOOK.IO (THE SOFTWARE DESIGN & ARCHITECTURE HANDBOOK)
https://solidbook.io
