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0

I do not understand how I can write a spec that would stub my model carrierwave uploader so I can actually test it in a mailer spec

class Message
 mount_uploader :attachment, ::AttachmentUploader
end

class MessageMailer
 def new_message(message
 ...
 attachments[message.attachment.file.filename] = message.attachment.read
 end
end

I have tried several stuff, it seems I cannot easily replace my mount_uploader with a stub using Rspec allow, so I resorted to actually sending a real file in there but then it seems in test mode carrierwave does not actually store the file, which results in a

undefined method length' for <CarrierWave::SanitizedFile:0x007fc89c0095d0>

This is coming from the mailer gem :

0: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2011:in `body_lazy'
 1: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:1245:in `body='
 2: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2124:in `init_with_hash'
 3: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:135:in `initialize'
 4: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `new'
 5: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `[]='
[next line is my mailer code that adds the attachment]

Any help / guidelines on how to test mailers with carrierwave mount_uploader would be appreciated

shared_examples 'a mailer action that sends the message attachment' do
 before do
 attachment = File.new(file_fixture('avatar.png'))
 message.attachment = attachment
 message.save
 end

 it 'sends the message attachment' do
 expect(mail.attachments.first.present?).to be
 end
end

ruby-on-rails email rspec carrierwave email-attachments

share|improve this question

edited Mar 28 at 10:08

Cyril Duchon-Doris

asked Mar 28 at 9:46

Cyril Duchon-DorisCyril Duchon-Doris

5,84544 gold badges2727 silver badges7878 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Found a solution there stackoverflow.com/a/43278547/2832282 to use attachment.read instead, which works, but I would actually prefer a solution where I could mock the file at all
  
  – Cyril Duchon-Doris
  Mar 28 at 10:07
  

  
  
  
  

add a comment
 | 

0

I do not understand how I can write a spec that would stub my model carrierwave uploader so I can actually test it in a mailer spec

class Message
 mount_uploader :attachment, ::AttachmentUploader
end

class MessageMailer
 def new_message(message
 ...
 attachments[message.attachment.file.filename] = message.attachment.read
 end
end

I have tried several stuff, it seems I cannot easily replace my mount_uploader with a stub using Rspec allow, so I resorted to actually sending a real file in there but then it seems in test mode carrierwave does not actually store the file, which results in a

undefined method length' for <CarrierWave::SanitizedFile:0x007fc89c0095d0>

This is coming from the mailer gem :

0: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2011:in `body_lazy'
 1: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:1245:in `body='
 2: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2124:in `init_with_hash'
 3: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:135:in `initialize'
 4: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `new'
 5: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `[]='
[next line is my mailer code that adds the attachment]

Any help / guidelines on how to test mailers with carrierwave mount_uploader would be appreciated

shared_examples 'a mailer action that sends the message attachment' do
 before do
 attachment = File.new(file_fixture('avatar.png'))
 message.attachment = attachment
 message.save
 end

 it 'sends the message attachment' do
 expect(mail.attachments.first.present?).to be
 end
end

ruby-on-rails email rspec carrierwave email-attachments

share|improve this question

edited Mar 28 at 10:08

Cyril Duchon-Doris

asked Mar 28 at 9:46

Cyril Duchon-DorisCyril Duchon-Doris

5,84544 gold badges2727 silver badges7878 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Found a solution there stackoverflow.com/a/43278547/2832282 to use attachment.read instead, which works, but I would actually prefer a solution where I could mock the file at all
  
  – Cyril Duchon-Doris
  Mar 28 at 10:07
  

  
  
  
  

add a comment
 | 

I do not understand how I can write a spec that would stub my model carrierwave uploader so I can actually test it in a mailer spec

class Message
 mount_uploader :attachment, ::AttachmentUploader
end

class MessageMailer
 def new_message(message
 ...
 attachments[message.attachment.file.filename] = message.attachment.read
 end
end

I have tried several stuff, it seems I cannot easily replace my mount_uploader with a stub using Rspec allow, so I resorted to actually sending a real file in there but then it seems in test mode carrierwave does not actually store the file, which results in a

undefined method length' for <CarrierWave::SanitizedFile:0x007fc89c0095d0>

This is coming from the mailer gem :

0: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2011:in `body_lazy'
 1: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:1245:in `body='
 2: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2124:in `init_with_hash'
 3: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:135:in `initialize'
 4: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `new'
 5: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `[]='
[next line is my mailer code that adds the attachment]

Any help / guidelines on how to test mailers with carrierwave mount_uploader would be appreciated

shared_examples 'a mailer action that sends the message attachment' do
 before do
 attachment = File.new(file_fixture('avatar.png'))
 message.attachment = attachment
 message.save
 end

 it 'sends the message attachment' do
 expect(mail.attachments.first.present?).to be
 end
end

ruby-on-rails email rspec carrierwave email-attachments

share|improve this question

edited Mar 28 at 10:08

Cyril Duchon-Doris

asked Mar 28 at 9:46

Cyril Duchon-DorisCyril Duchon-Doris

5,84544 gold badges2727 silver badges7878 bronze badges

class Message
 mount_uploader :attachment, ::AttachmentUploader
end

class MessageMailer
 def new_message(message
 ...
 attachments[message.attachment.file.filename] = message.attachment.read
 end
end

0: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2011:in `body_lazy'
 1: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:1245:in `body='
 2: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:2124:in `init_with_hash'
 3: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/message.rb:135:in `initialize'
 4: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `new'
 5: /Users/Cyril/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/mail-2.7.0/lib/mail/attachments_list.rb:83:in `[]='
[next line is my mailer code that adds the attachment]

shared_examples 'a mailer action that sends the message attachment' do
 before do
 attachment = File.new(file_fixture('avatar.png'))
 message.attachment = attachment
 message.save
 end

 it 'sends the message attachment' do
 expect(mail.attachments.first.present?).to be
 end
end

share|improve this question

edited Mar 28 at 10:08

Cyril Duchon-Doris

asked Mar 28 at 9:46

Cyril Duchon-DorisCyril Duchon-Doris

5,84544 gold badges2727 silver badges7878 bronze badges

share|improve this question

edited Mar 28 at 10:08

Cyril Duchon-Doris

asked Mar 28 at 9:46

Cyril Duchon-DorisCyril Duchon-Doris

5,84544 gold badges2727 silver badges7878 bronze badges

asked Mar 28 at 9:46

Cyril Duchon-DorisCyril Duchon-Doris

5,84544 gold badges2727 silver badges7878 bronze badges

asked Mar 28 at 9:46

Cyril Duchon-DorisCyril Duchon-Doris

5,84544 gold badges2727 silver badges7878 bronze badges