rud/gist:2988115

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    If you use tests of the form:
User.accessible_attributes.should =~ [:email, :password]
you'll get an extra attribute called "" if you set config.active_record.whitelist_attributes = true, and thus a specfailure. Annoying.
Instead, you can add this to your config/application.rb:
# Require attr_accessible to be used on all models for mass-assignment to work
ActiveRecord::Base.instance_eval do
  attr_accessible # none - and this method doesn't whitelist an attribute with the name ""
end