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Fundamentals of TDD / Tdd Spec Cleanup Exercise

Hey there! We're thoughtbot, a design and development consultancy that brings your digital product ideas to life. We also love to share what we learn.

This coding exercise comes from Upcase, the online learning platform we run. It's part of the Fundamentals of TDD course and is just one small sample of all the great material available on Upcase, so be sure to visit and check out the rest.

Exercise Intro

Test code deserves the same care and effort as we put into writing our production code. In this exercise you'll take a messy test and refactor it to better capture the intent and tell a good story.

Instructions

To start, you'll want to clone and run the setup script for the repo

git clone git@github.com:thoughtbot-upcase-exercises/tdd-spec-cleanup-exercise.git
cd tdd-spec-cleanup-exercise
bin/setup

Your goal is to refactor the provided spec to help it tell a good story. Currently the spec makes heavy use of features like let and before, obscuring the behavior and assertions in each of the specs. Instead, we want each spec to stand on its own, telling a small clear story about the behavior of our model

  1. Edit the spec in spec/models/invitation_spec.rb.
  2. Refactor the spec, cleaning up and clarifying things without changing the test or model behavior
  3. As with any good refactoring, your tests should remain green throughout. Be sure to check with:
$ bin/rspec spec/models/invitation_spec.rb

Your goal is to refactor the specs in that file to clarify the behavior and tell a good story

  • Keep the 4 phase test model in mind (likely you'll only need 3 as tear down is automated)
  • Feel free to extract helper methods to abstract away details while keeping setup explicit to the spec

Tips and Tricks

Revisit the video on Telling a Story with Your Tests for tips on how to tackle this cleanup.

Forum Discussion

If you find yourself stuck, be sure to check out the associated Upcase Forum discussion for this exercise to see what other folks have said.

Next Steps

When you've finished the exercise, head on back to the Fundamentals of TDD course to find the next exercise, or explore any of the other great content on Upcase.

License

tdd-spec-cleanup-exercise is Copyright © 2015-2018 thoughtbot, inc. It is free software, and may be redistributed under the terms specified in the LICENSE file.

Credits

thoughtbot

This exercise is maintained and funded by thoughtbot, inc.

The names and logos for Upcase and thoughtbot are registered trademarks of thoughtbot, inc.

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