For this session we’ll work on the Minesweeper challenge in Ruby once more, but this time with the Randori rules slightly changed:

• A pair will work on the solution for 10 minutes
• The pair must use Test-Driven Development and Baby Steps all the time
• The pair must follow the Ping Pong approach:
  • One person writes a failing test
  • The other person makes the test pass writing a minimum amount of code
  • The same person writes the next failing test
• After 10 minutes one of the developers switches place with someone from the audience

Who attended the dojo before knows the minesweeper problem was solved a few times before, but trust me, it doesn’t matter. The idea of this session is focus more on the pair communication rather than the technical challenge. And if you never tried Ping Pong programming, it will be a good chance to experience one of the most enjoyable forms of pair programming.

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