Question

I am uploading an image to my Imagecollection model in using CarrierWave, and would like to test that when I upload the image, it is actually available online. And that when I delete the image, it is actually removed.

I’m using an S3 backend, so i’d like to test this in the model itself, without having to have any controller dependencies, or run integration tests. So I would need to construct the url, Issue an HTTP reequest, and tests its return code. This code doesn’t work, but is there a way to do something similar to the following:

describe "once uploaded" do
  subject {Factory :company_with_images} 

  it "should be accessible from a URL" do
    image_url = subject.images.first.image.url
    get image_url                                   # Doesn't work
    response.should be_success                      # Doesn't work
  end
end

EDIT:

I ended up adding this to my Gemfile

gem rest-client

And using the :fog backend for my tests. Ideally, I could change the backend during the test with something like

before do
  CarrierWave.configure do |config|
     config.storage = :fog
  end
end

describe tests
end

after do
  CarrierWave.configure do |config|
     config.storage = :end
  end
end

But that doesn’t seem to actually do anything.

describe "once uploaded" do
  describe "using the :fog backend" do
    subject {Factory :company_with_images} 

    # This test only passes beecause the S3 host is specified in the url.
    # When using CarrierWave :file storage, the host isn't specified and it
    # fails
    it "should be accessible from a URL" do
      image_url = subject.images.first.image.url
      response = RestClient.get image_url
      response.code.should eq(200)
    end
  end

  describe "using the :file backend" do
    subject {Factory :company_with_images} 

    # This test fails because the host isn't specified in the url
    it "should be accessible from a URL" do
      image_url = subject.images.first.image.url
      response = RestClient.get image_url
      response.code.should eq(200)
    end
  end
end

Answer 1

I ended up redefining the spec as follows

  describe "using the :fog backend" do
    subject {Factory :company_with_images} 

    it "should be accessible from a URL" do
      image_url = subject.images.first.image.url
      rest_response(image_url).code.should eq(200)
    end
  end

with this helper

def rest_response url
  # https://github.com/archiloque/rest-client
  RestClient.get(url){|response, request, result| response }
end

and using the restclient gem