Running test mode on Heroku

[jobinthepast]

I have my app running in Test mode on Heroku. switch_user works well locally with Test mode but causes an exception on Heroku so that the app cannot start

I add config/initializers/switch_user.rb with these changes (to run in Test mode):

 27   config.controller_guard = lambda { |current_user, request| Rails.env.development? || Rails.env.test? }
 28 
 29   # view_guard is a block,
 30   # if it returns true, the switch user select box will be shown,
 31   # else the select box will not be shown
 32   # if you switch from admin to "user", the current_user param is "user"
 33   config.view_guard = lambda { |current_user, request| Rails.env.development? || Rails.env.test? }

And this is the error message on Heroku logs:

2011-09-21T02:32:27+00:00 app[web.1]: /app/config/initializers/switch_user.rb:1:in `<top (required)>': uninitialized constant SwitchUser (NameError)
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/engine.rb:201:in `block (2 levels) in <class:Engine>'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/engine.rb:200:in `each'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/engine.rb:200:in `block in <class:Engine>'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/initializable.rb:25:in `instance_exec'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/initializable.rb:25:in `run'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/initializable.rb:50:in `block in run_initializers'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/initializable.rb:49:in `each'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/initializable.rb:49:in `run_initializers'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/application.rb:134:in `initialize!'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.10/lib/rails/application.rb:77:in `method_missing'
2011-09-21T02:32:27+00:00 app[web.1]:   from /app/config/environment.rb:5:in `<top (required)>'
2011-09-21T02:32:27+00:00 app[web.1]:   from <internal:lib/rubygems/custom_require>:29:in `require'
2011-09-21T02:32:27+00:00 app[web.1]:   from <internal:lib/rubygems/custom_require>:29:in `require'
2011-09-21T02:32:27+00:00 app[web.1]:   from config.ru:3:in `block (3 levels) in <main>'

[chrislwade]

Your Gemfile probably has something like this (or a variant of it):

group :development, :test do
  gem 'switch_user'
end

Most (all recent unless you change it) Heroku applications are created the following under heroku config:

BUNDLE_WITHOUT              => development:test

Which means, since you have your Heroku instance configured to run with RAILS_ENV=test, that when you deploy bundler doesn't even bother installing switch_user and therefore won't try to load it. Ultimately that means that when your initializer runs, SwitchUser hasn't been defined and you end up with a NameError.

[jobinthepast]

Hi Chris,

I'm using Cedar stack which heroku config output doesn't contain BUNDLE_WITHOUT configuration as Bamboo.
Anyway, I tried to move switch_user outside the dev/test scopes then it works.

Thanks for your reply,
-Giang