How Do I Use Factory Girl To Generate A Paperclip Attachment?

Question

I have model Person that has many Images, where images has a Paperclip attachment field called data, an abbreviated version displayed below: ``` class Person has_many :images ... end class Image has_attached_file :data belongs_to :person ... end ``` Person is required to have at least one Image attached to it. When using FactoryGirl, I have code akin to the following: ``` Factory.define :image do |a| a.data { File.new(File.join(Rails.root, 'features', 'support', 'file.png')) } a.association :person end Factory.define :person do |p| p.first_name 'Keyzer' p.last_name 'Soze' p.after_create do |person| person.assets = [Factory.build(:image, :person => person)] end # p.images {|images| [images.association(:image)]} end ``` (N.B. I have also tried the code commented out above was also tried) Most of the time when I run cucumber features, I get an error akin to the following: No such file or directory - /tmp/stream,9887,0.png (Errno::ENOENT) ... Sometimes the tests run successfully. Can anyo…

Accepted Answer

You can use fixture_file_upload

`include ActionDispatch::TestProcess` in your test helper, here is an example factory:

```
include ActionDispatch::TestProcess

FactoryBot.define do
  factory :user do
    avatar { fixture_file_upload(Rails.root.join('spec', 'photos', 'test.png'), 'image/png') }
  end
end
```

In the above example, `spec/photos/test.png` needs to exist in your application's root directory before running your tests.

Note, that `FactoryBot` is a new name for `FactoryGirl`.

How Do I Use Factory Girl To Generate A Paperclip Attachment?

Solution

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