brutal refactoring game @hamburg 2012 11 28
TRANSCRIPT
TodayTake a simple problemUse pair-programming
Language agnosticWrite code
Add functionality only when the code is clean
Refactor oftenRefactor a lot
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Code smell
A code smell is a hint that shows you might have a problem in your
system. '
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Code smell
SniffableEasy to spot
Does not always indicate a problem
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Refactoring
Changing a software system without changing the behavior of
the code and improving its internal structure
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Refactoring
Is NOT:
Re-engineeringRe-designRe-writing
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Problem
Tic-Tac-Toe
Board 3x3X plays first
0 plays secondResult: winner or draw
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Coding smells1) Lack of tests2) Name not from domain3) Name not expressing intent4) Unnecessary if5) Unnecessary else6) Duplication of constant7) Method does more than one thing
8) Primitive obsession
9) Feature envy10) Method too long (> 6 lines)11) Too many parameters (> 3)12) Test – not unitary13) Test – setup too complex14) Test – unclear Act15) Test - more than one assert16) Test – no assert17) Test – too many paths
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