unit test in rails - model with paperclip

Question

I\'m trying to write a test for a model with a picture, using paperclip. I\'m using the test framework default, no shoulda or rspec. In this context, how should I test it? Shoul

Answer 1

I use FactoryGirl, setup the Model.

#photos.rb
FactoryGirl.define do
  factory :photo do
    image File.new(File.join(Rails.root, 'spec', 'fixtures', 'files', 'testimg1.jpg'))
  description "testimg1 description"
  end # factory :photo
 end

then

 # in spec

before(:each) { @user = FactoryGirl.create(:user, :with_photo) }

In the paperclip attachment specify where its going to be saved i.e.

...
the_path= "/:user_id/:basename.:extension"
if Rails.env.test?
   the_path= ":rails_root/tmp/" + the_path
end
has_attached_file :image,  :default_url => ActionController::Base.helpers.asset_path('missing.png'),
:path => the_path, :url => ':s3_domain_url'

Paperclip.interpolates :user_id do |attachment, style|
   attachment.instance.user_id.to_s
end

...

then test both the attachment_definitions (as suggested by kwon) and the Dir.glob to check the file is saved

 it "saves in path of user.id/filename" do
    expect(Dir.glob(File.join(Rails.root, 'tmp', @user.id.to_s, @user.photo.image.instance.image_file_name)).empty?).to be(false)
 end

this way i'm sure its carrying out the correct directy/path create etc