Gilded Rose Refactoring Kata
summary
Live coding of the Gilded Rose kata in Kotlin shows step‑by‑step refactorings, IntelliJ refactorings and custom plugins, GitHub‑hosted code and test regressions, and a working feature: conjured items degrade twice as fast is implemented and tests stay green. Tests, code coverage and small commits guide changes, mutation of fields gets pushed out into immutable copies, and practical shortcuts and IDE tips are demonstrated so the live edits actually build and pass.
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chapters (18)
- 0:00Introduction to the challenge
- 1:28Understanding requirements
- 2:20Analyzing the test code
- 3:52Initial code improvements
- 5:32Code coverage and analysis
- 6:31Attempting risky refactoring
- 7:45Refactoring techniques
- 10:36Improving readability
- 12:33Field usage analysis
- 14:12Inverting conditionals
- 17:34Encapsulating mutation
- 21:22Adding the new feature
- 23:54Refining the design
- 27:33Implementing immutability
- 30:57Retro and design lessons
- 33:43IDE shortcuts and plugins
- 35:50AI in refactoring
- 38:23Conclusion and resources
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