Should I stub the model in Factory girl or in the spec file while testing?

Question

Almost every spec file I come accross I end up writing stuff like:

  before :each do
    @cimg = Factory.build :cimg_valid
    @cimg.stub(:validate_img).and_retu         


        

Answer 1

@fkreusch's answer works great until you use the new RSpec expect() syntax (3.0+)

Putting this into rails_helper.rb works for me:

FactoryBot::SyntaxRunner.class_eval do
  include RSpec::Mocks::ExampleMethods
end

In the OP's example, you can now do:

FactoryBot.define do
  factory :cimg_for_testing_tags do

    ... # Factory attributes

    after(:build) do |cimg|
      allow(cimg).to receive(:validate_img) { true }
    end
  end
end

Credit: github.com/printercu, see: https://github.com/thoughtbot/factory_bot/issues/703#issuecomment-83960003