Destroying not only a new controller, but also any contingent files created by a generate command

Create a new rails app without the default unit tests directory.

$ rails generate integration_test static_pages

$ rake db:rollback

By the way, previous versions of Rails used PUT in place of PATCH, and Rails 4.0 still supports this usage, but PATCH matches the intended HTTP usage better and is preferred for new applications.

? - list of postgres commands
\h - list of SQL commands
\h select(or whatever) - documentation on a specific command

$ rake db:migrate VERSION=0

visit '/static_pages/home'
expect(page).to have_content('Sample App')

Visit simulates visiting the website (provided by capybara), and capybara also gives us a page variable.

If you want to make a line break in markdown, you have to leave two or more spaces, then hit enter.
Like this, see?

Easy.