Attaching ActiveStorage files in factorybot

Question

I'm looking for a way to create factories for models which have active storage attachments

I attempted the method in this post

with my factory

factory :activity_fit_file, class: 'Activity' do
    association :user, factory: :user
    activity_type {:cycling}
    original_activity_log_file { fixture_file_upload("#{Rails.root}/spec/files/example_fit_file.fit") }
end

but I got this error

 NoMethodError:
   undefined method `fixture_file_upload' for #<FactoryBot::SyntaxRunner:0x000000000208c5f8>

What is the correct way to attach files in ActiveStorage?

Answer 1

Try with Rack::Test::UploadedFile directly:

file { Rack::Test::UploadedFile.new('path', 'image/png') }