How can I get my CarrierWave model to return the full URL to me in a test? - carrierwave

Question

Trying to test a carrierwave model is really difficult. I configured my test environment like this:
if Rails.env.test?
CarrierWave.configure do |config|
config.storage = :file
config.enable_processing = false
config.fog_directory = BUCKET # required
config.fog_public = false # optional, defaults to true
config.fog_credentials = {
:provider => 'Local', # required
:local_root => LOCAL_ROOT, # required
:endpoint => "http://localhost:3000" # required
}
end
else
CarrierWave.configure do |config|
config.storage = :fog
config.max_file_size = 1.gigabytes # defaults to 5.megabytes
config.fog_directory = BUCKET # required
config.fog_public = false # optional, defaults to true
config.fog_credentials = {
:provider => PROVIDER, # required
:aws_access_key_id => access_key_id, # required
:aws_secret_access_key => secret_access_key # required
}
end
end
and it works great for testing uploads. Makes it difficult for testing downloads though.
Here is a simple test:
require "test_helper"
class UploadTests < ActiveSupport::TestCase
let(:user) { User.me }
let(:repo) { Repository.first }
let(:sub) { user.subscriptions.where(repository_id: repo).first}
it "uploads a CSV file and lets me read it" do
filename = Rails.root.join("test/testfiles/product_upload_test.csv").to_s
upload = sub.uploads.new
File.open(filename) do |f|
upload.text_file_name = f
end
upload.save!
end
end
All very simple. But what I want to do is read the file from the model. In other words, call some CarrierWave API that lets me grab the file and read it.
In production, I store everything on S3. In test, everything is in a local file. And I set local_root to be my app's public directory.
CarrierWave only reports the url as the path, but doesn't include the local_root. I don't feel that it is my job to manually construct the path to a file that I want to read from CarrierWave. How/Where the file is stored should be hidden from my test... I should have to construct that path.
But I don't know what else to do. All I want to do is read that file.

Answer 1

I changed my test configuration to the following:
CarrierWave.configure do |config|
config.storage = :file
config.enable_processing = false
config.fog_directory = BUCKET # required
config.fog_public = true # optional, defaults to true
config.fog_credentials = {
:provider => 'Local', # required
:local_root => LOCAL_ROOT, # required
:endpoint => LOCAL_ROOT # required
}
end
and now the full url is returned.