Prevent rake task dependency from loading Rails twice

Question

Following the example at http://robots.thoughtbot.com/testing-your-factories-first the line task spec: :factory_specs in the Rakefile tells rake to execute "factory_specs" task before "spec" task.

My issue is that rake spec loads the Rails environment twice, one to execute factory_specs task and then another to execute spec task.

How do I prevent my rake command from loading Rails twice?

My stack:

Ruby 1.9.3p484
Rails 3.2.13

Rake already optimises this. (i.e if you are calling two tasks asks and both have the same dependency, then it is invoked only once). Infact, in a call chain, same task will never be executed more than once — Selva
Not with my stack and scenario. It took about 30 seconds to load Rails each time before a task is run, while the tasks themselves take only 2 seconds to run. — konyak

Joe Ferris Joe Ferris · Accepted Answer · 2014-02-21T14:53:06

With the latest version of FactoryGirl, you can use FactoryGirl.lint instead of explicitly testing your factories in a separate rake task. Just update to the latest version and add this to your spec_helper.rb:

RSpec.configure do |config|
  config.before(:suite) do
    FactoryGirl.lint
  end
end

More info is in the Getting Started Guide.

Prevent rake task dependency from loading Rails twice

1 Answers