ruby on rails - Testing unmarshalling of asynchronous ActionMailer methods using Sidekiq -

tldr; how can test poro argument asynchronous actionmailer action (using sidekiq) serializes , deserializes correctly?

sidekiq provides rspec matchers testing job enqueued , performing job (with given arguments).

--

to give context, have ruby on rails 4 application actionmailer. within actionmailer method takes in poro argument - references data need in email. use sidekiq handle background jobs. turns out there issue in deserializing argument fail when sidekiq decided perform job. haven't been able find way test correctness of un/marshaling such poro called action being used when performed.

for example:

given actionmailer action

class applicationmailer < actionmailer::base     def send_alert profile         @profile = profile         mail(to: profile.email)     end end 

...

i use this

profile = profiledetailsservice.new(user) applicationmailer.send_alert(profile).deliver_later 

...

and have test (but fails)

let(:profile) { profiledetailsservice.new(user) }  'request email sent'   expect {     applicationmailer.send_alert(profile).deliver_later   }.to have_enqueued_job.on_queue('mailers') end 

any assistance appreciated.

you can test in synchronous way (using irb , without need of start sidekiq workers).

let's worker class has following implementation:

class worker   include sidekiq::worker    def perform(poro_obj)     puts poro_obj.inspect     # ...   end end 

you can open irb (bundle exec irb) , type following commands:

require 'sidekiq' require 'worker'  worker.new.perform 

thus, execute code in synchronous way , using sidekiq (note we're invoking perform method instead of perform_async).

i think best way debug code.