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Kata String Calculator
This document describes a meetup group called Software Craftsmanship Alicante. It provides information on who they are, what they like (agile and programming), and why they care about building community. It invites software developers who like agile to join them. It also provides contact details like their Meetup, Twitter, Slack, and GitHub pages. One member, Enrique Barbeito Garcia, then discusses test-driven development and demonstrates a string calculator kata.
Kata String Calculator
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- 2. Software Craftsmanship Alicante Who we are Whatwe like Why do we care? You are a software developer You like agile, programming Make community. Join us!
- 3. Software Craftsmanship Alicante Meetup http://meetup.com/Software-Craftsmanship-Alicante/ Twitter @AlicanteSwCraft Slackhttp://softwarecraftsmanship.slack.com/messages/alicante/ Slides http://slideshare.net/AlicanteSwCraft Github https://github.com/alicanteswcraft
- 4. Enrique Barbeito García @enriquebarbeito KataString Calculator Practicing TDD Software Craftsmanship Alicante
- 5. @enriquebarbeito Test-Driven Development ina nutshell Software Craftsmanship Alicante Test-Driven Development in a nutshell (1/2) Code Katas Kata String Calculator Show me the code Key concepts ❏ XP practice stated in 2003. ❏ TDD = TFD + Refactoring ❏ TDD != testing, so it is most about software design ❏ Does not replace architecture or design ❏ It is also a development process with a repetitive cycle. Repeat with me: red-green-refactor! All-Code-Is-Guilty.jpg
- 6. @enriquebarbeito Test-Driven Development ina nutshell Software Craftsmanship Alicante Test-Driven Development in a nutshell (2/2) Code Katas Kata String Calculator Show me the code Key rules when doing TDD ❏ Ensure isolated specs ❏ Arrange. Act. Assert ❏ One verification per test/spec ❏ Write only one spec at a time ❏ Do not lose the green during a refactor step ❏ No debugging (neither output logging) TDD cycle
- 7. @enriquebarbeito Code Katas Software CraftsmanshipAlicante Test-Driven Development in a nutshell Code Katas Kata String Calculator Show me the code ❏ Code exercise which helps you to hone your skills through practice and repetition ❏ Simple problem, easy to practice, every day ❏ Experiment with solutions ❏ Focus on ❏ the process of writing the code ❏ naming test cases ❏ the red-green-refactor cyclekata.gif
- 8. @enriquebarbeito Kata String Calculator SoftwareCraftsmanship Alicante Test-Driven Development in a nutshell Code Katas Kata String Calculator Show me the code int Add(string numbers) ❏ The method can take 0, 1 or 2 numbers, and will return their sum (for an empty string it will return 0) for example "" or "1" or "1,2" ❏ Allow the Add method to handle an unknown amount of numbers ❏ Allow the Add method to handle new lines between numbers (instead of commas). ❏ Support different delimiters. ❏ Calling Add with a negative number will throw an exception.
- 9. @enriquebarbeito Show me thecode Software Craftsmanship Alicante Test-Driven Development in a nutshell Code Katas Kata String Calculator Show me the code Demo
- 10. Enrique Barbeito García @enriquebarbeito FIN.Thanks! Questions? @AlicanteSwCraft Please, follow! Please, Join us!