動作するきれいなコード / Clean code that works - SeleniumConf Tokyo 2019

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5BLVUP8BEB - Consultant - Programmer guided by tests - Loves
FLOSS - Creator of power-assert-js

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Clean Dirty Doesn’t work Works Two Ways $MFBODPEFUIBUXPSLT

Clean Dirty Doesn’t work Works $MFBODPEFUIBUXPSLT Bog

Clean Dirty Doesn’t work Works $MFBODPEFUIBUXPSLT Bog Shame

Clean Dirty Doesn’t work Works $MFBODPEFUIBUXPSLT Bog Vanity Shame

Clean Dirty Doesn’t work Works $MFBODPEFUIBUXPSLT Bog Vanity Shame Perfectionism

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Analysis Paralysis

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3FGBDUPSJOH Refactoring (noun): a change made to the internal structure
of software to make it easier to understand and cheaper to modify without changing its observable behavior.

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Red. Write a little test that doesn't work, and perhaps
doesn't even compile at first. Green. Make the test work quickly, committing whatever sins necessary in the process. Refactor. Eliminate all of the duplication created in merely getting the test to work.

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Unit Integration E2E Scale Amount of Feedback Internal Quality External
Quality

External Quality: Correctness, Usability, Efficiency, Reliability, Integrity, Adaptability, Accuracy, Robustness
Internal Quality: Maintainability, Flexibility, Portability, Re-usability, Readability, Testability, Understandability

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The code you write for a unit test is real;
some may argue it's even more real than the code you ship to customers. This means that it must be written and maintained to the same professional standards as your production code. Test code is real code.

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TDD can't guarantee that we will have flashes of insight
at the right moment. However, confidence-giving tests and carefully factored code give us preparation for insight, and preparation for applying that insight when it comes. ─ Kent Beck

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動作するきれいなコード / Clean code that works - SeleniumC...

動作するきれいなコード / Clean code that works - SeleniumConf Tokyo 2019

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