Capybara FactoryGirl Carrierwave cannot attach file - cucumber

Question

I am trying to test my application with cucumber and capybara.
I have the following step definition:
Given(/^I fill in the create article form with the valid article data$/) do
#article_attributes = FactoryGirl.build(:article)
within("#new_article") do
fill_in('article_title', with: #article_attributes.title)
attach_file('article_image', #article_attributes.image)
fill_in('article_description', with: #article_attributes.description)
fill_in('article_key_words', with: #article_attributes.key_words)
fill_in('article_body', with: #article_attributes.body)
end
My article factory looks like this:
FactoryGirl.define do
factory :article do
sequence(:title) {|n| "Title #{n}"}
description 'Description'
key_words 'Key word'
image { File.open(File.join(Rails.root, '/spec/support/example.jpg')) }
body 'Lorem...'
association :admin, strategy: :build
end
end
And this is my uploader file:
# encoding: UTF-8
class ArticleImageUploader < CarrierWave::Uploader::Base
storage :file
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
def extension_white_list
%w(jpg jpeg gif png)
end
end
But each time i run this scenario i get ERROR message:
Given I fill in the create article form with the valid article data # features/step_definitions/blog_owner_creating_article.rb:1
cannot attach file, /uploads/article/image/1/example.jpg does not exist (Capybara::FileNotFound)
./features/step_definitions/blog_owner_creating_article.rb:5:in `block (2 levels) in <top (required)>'
./features/step_definitions/blog_owner_creating_article.rb:3:in `/^I fill in the create article form with the valid article data$/'
features/blog_owner_creating_article.feature:13:in `Given I fill in the create article form with the valid article data'
I also found that FactoryGirl returns image:nil when i run FactoryGirl.build(:article) in my rails test console.
Could anybody explain me what i am doing wrong,please?

Answer 1

You need to pass the path in directly:
attach_file('article_image', File.join(Rails.root, '/spec/support/example.jpg'))
What's happening here is that attach_file expects a string, not a CarrierWave uploader. When you pass it an uploader (#article_attributes.image), attach_file is calling Uploader#to_s, which calls Uploader#path. Since you haven't saved the article yet, the path at which the uploaded image will be located is invalid.
Note also that calling your variable #article_attributes is confusing, since it's actually a full article object, not just a hash. If that's what you want, you may want to try FactoryGirl.attributes_for(:article).