Skip callbacks on Factory Girl and Rspec

Question

I\'m testing a model with an after create callback that I\'d like to run only on some occasions while testing. How can I skip/run callbacks from a factory?

c         


        

Answer 1

I'd like to make an improvement to @luizbranco 's answer to make after_save callback more reusable when creating other users.

FactoryGirl.define do
  factory :user do
    first_name "Luiz"
    last_name "Branco"
    #...

    after(:build) { |user| 
      user.class.skip_callback(:create, 
                               :after, 
                               :run_something1,
                               :run_something2) 
    }

    trait :with_after_save_callback do
      after(:build) { |user| 
        user.class.set_callback(:create, 
                                :after, 
                                :run_something1,
                                :run_something2) 
      }
    end
  end
end

Running without after_save callback:

FactoryGirl.create(:user)

Running with after_save callback:

FactoryGirl.create(:user, :with_after_save_callback)

In my test, I prefer to create users without the callback by default because the methods used run extra stuff I don't normally want in my test examples.

----------UPDATE------------ I stopped using skip_callback because there were some inconsistency issues in the test suite.

Alternative Solution 1 (use of stub and unstub):

after(:build) { |user| 
  user.class.any_instance.stub(:run_something1)
  user.class.any_instance.stub(:run_something2)
}

trait :with_after_save_callback do
  after(:build) { |user| 
    user.class.any_instance.unstub(:run_something1)
    user.class.any_instance.unstub(:run_something2)
  }
end

Alternative Solution 2 (my preferred approach):

after(:build) { |user| 
  class << user
    def run_something1; true; end
    def run_something2; true; end
  end
}

trait :with_after_save_callback do
  after(:build) { |user| 
    class << user
      def run_something1; super; end
      def run_something2; super; end
    end
  }
end