Book Image

Agile Technical Practices Distilled

By : Pedro M. Santos, Marco Consolaro, Alessandro Di Gioia
Book Image

Agile Technical Practices Distilled

By: Pedro M. Santos, Marco Consolaro, Alessandro Di Gioia

Overview of this book

The number of popular technical practices has grown exponentially in the last few years. Learning the common fundamental software development practices can help you become a better programmer. This book uses the term Agile as a wide umbrella and covers Agile principles and practices, as well as most methodologies associated with it. You’ll begin by discovering how driver-navigator, chess clock, and other techniques used in the pair programming approach introduce discipline while writing code. You’ll then learn to safely change the design of your code using refactoring. While learning these techniques, you’ll also explore various best practices to write efficient tests. The concluding chapters of the book delve deep into the SOLID principles - the five design principles that you can use to make your software more understandable, flexible and maintainable. By the end of the book, you will have discovered new ideas for improving your software design skills, the relationship within your team, and the way your business works.
Table of Contents (31 chapters)
Free Chapter
Section 1
Section 2
Section 3
Section 4
Chapter 21
License: CyberDojo


Smelly Tic-Tac-Toe

We created a very smelly implementation of Tic-Tac-Toe in our Code Smells: open source repository. There are quite a few code smells in the implementation:

  • Comments
  • Data class
  • Data clumps
  • Divergent change
  • Duplicated code
  • Feature envy
  • Large class
  • Lazy class
  • Long method
  • Long parameter list
  • Message chain
  • Primitive obsession
  • Shotgun surgery

Start by identifying the smells, then slowly refactor the code. Remember to keep the tests passing at all times during the refactor. It's okay to revert back to a previous working state at any moment.


For a sample (partial) solution, see the Appendices section on the page 385.