This document outlines Peter Kofler's presentation on refactoring the Tennis Kata coding exercise. The presentation covers the coding dojo mindset of collaboratively learning by slowing down and focusing on quality. It describes the dojo structure, Test Driven Development skills like designing clean code and refactoring safely. It also provides requirements for the Tennis Kata refactoring exercise - to focus on cleanup and refactoring in small steps while running tests often.

1. Coding Dojo:
Refactoring the
Tennis Kata
Agile Testing Days 2013
Peter Kofler, ‘Code Cop’
@codecopkofler
www.code-cop.org
Copyright Peter Kofler, licensed under CC-BY.

2. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Peter Kofler
• Software Developer
for 14 years
• “fanatic about
code quality”
• I help development teams to do it right
• Pair Programming #CodeCopTour

3. Expectations?

4. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Coding Dojo Mindset
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Safe place outside
work
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We are here to learn
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Need to slow down
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Focus on doing it right
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Collaborative Game

5. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Dojo Structure
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Introduction 15'
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Coding 30'
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Interim (Retrospective) 15'
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Break 25'
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Coding 45'
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Retrospective 15'

6. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
TDD Skills
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Driving Development with Tests
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Designing Test Cases
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Designing Clean Code
●
Refactoring Safely 

7. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Scoring in Tennis Game

8. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Requirements
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Get the code
https://github.com/codecop/Tennis-Kata-ATD2013
●
●
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Focus entirely on Clean-up
Refactor in small steps
●
Experiment with approaches
Run tests often

9. Don't Focus on
Getting it Done.
F0cus on Doing
It Perfectly.

10. →Practice

11. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Closing Circle
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What did you learn today?
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What surprised you today?
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What will you do
differently in the
future?

12. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Please evaluate my presentation
using the AgileTD Mobile App at
www.touchmyconference.com/ATD2013
I appreciate your feedback.

13. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
Peter Kofler
@codecopkofler
www.code-cop.org
Kata by
Emily Bache
@emilybache
http://emilybache.blogspot.co.at/2011/08/refactoring-kata-fun.html

14. PETER KOFLER, CODE-COP.ORG
FANATIC ABOUT CODE QUALITY
CC Images
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Dojo http://www.flickr.com/photos/49715404@N00/3267627038/
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Todos http://www.flickr.com/photos/kylesteeddesign/3724074594/
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Tennis http://www.flickr.com/photos/gagillphoto/3706167856/
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Wants you http://www.flickr.com/photos/shutter/105497713/