Rails 3 test fixtures with carrierwave?

Question

I\'m working on upgrading from attachment_fu to carrierwave, since attachment_fu is broken in rails 3.

None of the tests are able to run, because we have invalid fixture

Answer 1

I know it is old but, for some that uses Rails 5 + RSpec + CarrierWave + Fixtures:

Edit test configs:

# config/initializers/carrierwave.rb
if Rails.env.test?
  class NullStorage < CarrierWave::Storage::Abstract
    def store!(_file)
      _file
    end

    def retrieve!(identifier)
      file = Rails.root.join('spec', 'fixtures', 'files', identifier)
      tmp = Rails.root.join('tmp', 'blank_tmp.jpg')
      FileUtils.cp(file, tmp)
      CarrierWave::SanitizedFile.new(tmp)
    end
  end

  CarrierWave.configure do |config|
    config.storage = NullStorage
    config.enable_processing = false
  end
end

Create a folder and a file, for example spec/fixtures/files/some-user-photo.jpg

and, create some fixtures, for example:

first_user:
  avatar: "some-user-photo.jpg"
  name: "First User Name"
  about: "First User About Long Text..."
  lat: 0.001
  lng: 0.001
  created_at: <%= Time.current - 3.days %>
  updated_at: <%= Time.current - 3.days %>

That is enough to make the test understand that this user has an avatar