Scaffold and behold!

Let's scaffold out something to see what we get for free with rails, rspec, and factories

Run your scaffold command

rails g scaffold Cat name:string breed:string bio:string

Look at all the tests that got generated!

    new file:   spec/controllers/cats_controller_spec.rb
    new file:   spec/factories/cats.rb
    new file:   spec/helpers/cats_helper_spec.rb
    new file:   spec/models/cat_spec.rb
    new file:   spec/requests/cats_spec.rb
    new file:   spec/routing/cats_routing_spec.rb
    new file:   spec/views/cats/edit.html.erb_spec.rb
    new file:   spec/views/cats/index.html.erb_spec.rb
    new file:   spec/views/cats/new.html.erb_spec.rb
    new file:   spec/views/cats/show.html.erb_spec.rb

What's in a scaffold...

We automagically get tests for:

• routing
• requests
• models
• views
• controllers

Run your tests

First run rake db:migrate, then rspec or bundle exec rspec to see our tests run.

rake db:migrate
bundle exec rspec

Check out your console output...

Randomized with seed 19139
........**....***********..

Pending: (Failures listed here are expected and do not affect your suite's status)

  1) CatsHelper add some examples to (or delete) /Users/ni_lo/Code/talks/rspec/reading_meow/spec/helpers/cats_helper_spec.rb
     # Not yet implemented
     # ./spec/helpers/cats_helper_spec.rb:14

# more output from pended/skipped tests ....

Top 10 slowest examples (1.14 seconds, 97.7% of total time):
  cats/edit renders the edit cat form
    0.56707 seconds ./spec/views/cats/edit.html.erb_spec.rb:12
  Cats GET /cats works! (now write some real specs)
    0.49378 seconds ./spec/requests/cats_spec.rb:5

# more output about our slowest tests ...

Finished in 1.17 seconds (files took 4.65 seconds to load)
27 examples, 0 failures, 13 pending

Randomized with seed 19139

Clean up

To reverse your scaffolding, you can run...

rails d scaffold Cat name:string breed:string bio:string

Awesome. Now let's actually start building out our app with tests!