ep06_listing_11.rb

test 'change advertisement content' do
 advertisement_id = SecureRandom.random_number
 author_id = SecureRandom.random_number
 new_content = "Random content: #{SecureRandom.hex}"
 command_bus.(PublishAdvertisement.new(advertisement_id, author_id))

 assert_events(
     "Advertisement$#{advertisement_id}",
     ContentHasChanged.new(data: {content: new_content})
 ) do
   command_bus.(ChangeContent.new(advertisement_id, new_content, author_id))
 end
end