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POPaperclip functional test giving NoHandlerError
 

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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/10033425/paperclip-exception-paperclipadapterregistrynohandlererror">Paperclip exception : Paperclip::AdapterRegistry::NoHandlerError</a> </p> </blockquote> <p>**********EDIT**********</p> <p>I have investigated this further and found the issue was down to the way FactoryGirl is passing the attachment. Basically the controller is receiving a string and not the uploaded file object. I have created a new question (<a href="https://stackoverflow.com/questions/11283318/paperclipattachment-passed-as-string-when-using-factorygirl">Paperclip::Attachment passed as string when using FactoryGirl</a>) which includes my workaround for anyone who may have a similar issue. </p> <p>Testing paperclip 3.1.2 on rails 3.2.6 and i am getting the following exception when testing that a model with a file attachment is created:</p> <pre><code>test_should_create_artist(ArtistsControllerTest): Paperclip::AdapterRegistry::NoHandlerError: No handler found for "/system/artists/photos/000/000/001/original/rails.png?1340130452" </code></pre> <p>my model is:</p> <pre><code>class Artist &lt; ActiveRecord::Base has_attached_file :photo, :styles =&gt; {:medium =&gt; "300x300&gt;", :thumb =&gt; "100x100&gt;" }, :default_url =&gt; "image_missing.png" attr_accessible :photo, :photo_file_name validates_attachment :photo, :presence =&gt; true, :content_type =&gt; { :content_type =&gt; "image/jpg" }, :size =&gt; { :in =&gt; 0..10000.kilobytes } end </code></pre> <p>my controller is:</p> <pre><code>class ArtistsController &lt; ApplicationController # POST /artists # POST /artists.json def create @artist = Artist.new(params[:artist]) respond_to do |format| if @artist.save format.html { redirect_to @artist, notice: 'Artist was successfully created.' } format.json { render json: @artist, status: :created, location: @artist } else format.html { render action: "new" } format.json { render json: @artist.errors, status: :unprocessable_entity } end end end end </code></pre> <p>And my test is :</p> <pre><code>require 'test_helper' class ArtistsControllerTest &lt; ActionController::TestCase setup do @artist = FactoryGirl.build(:artist) end test "should create artist" do assert_difference('Artist.count') do post :create, :artist =&gt; { biography: @artist.biography, name: @artist.name, website: @artist.website, photo: @artist.photo }, :html =&gt; { :multipart =&gt; true } end assert_redirected_to artist_path(assigns(:artist)) end end </code></pre> <p>As far as i can tell the factory is working but it is:</p> <pre><code>include ActionDispatch::TestProcess FactoryGirl.define do factory :artist do id 1 photo {fixture_file_upload(Rails.root.join('test','fixtures', 'files', 'rails.png'),'image/png')} end end </code></pre> <p>As this is a basic test I'm sure I've just got something horribly wrong. Any help would be greatly appreciated! Thanks</p>
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