[rspec-users] How to spec an attachment_fu model

[Justin W. Reagor]

>       # TODO: Allow it to work with Merb tempfiles too.
>       def uploaded_data=(file_data)
>         return nil if file_data.nil? || file_data.size == 0
>         self.content_type = file_data.content_type

Durh... stupid me, didn't see this post! :)

:: Justin Reagor
:: justinwr at gmail.com
:: Justin Reagor
:: justinwr at gmail.com



On Aug 22, 2007, at 12:23 PM, Matt Lins wrote:

> First off, I'm not trying to spec attachment_fu, I know it's been  
> tested.
>
> But, I added some code to that model that I do need to test.  
> Basically, I need to somehow fulfill the "uploaded_data" property  
> so I can actually run my tests(otherwise they fail because of  
> validations). The "uploaded_data" field is what would grab the  
> multipart data from form.  Here it is:
>
>       # This method handles the uploaded file object.  If you set  
> the field name to uploaded_data, you don't need
>       # any special code in your controller.
>       #
>       #   <% form_for :attachment, :html => { :multipart => true }  
> do |f| -%>
>       #     <p><%= f.file_field :uploaded_data %></p>
>       #     <p><%= submit_tag :Save %>
>       #   <% end -%>
>       #
>       #   @attachment = Attachment.create! params[:attachment]
>       #
>       # TODO: Allow it to work with Merb tempfiles too.
>       def uploaded_data=(file_data)
>         return nil if file_data.nil? || file_data.size == 0
>         self.content_type = file_data.content_type
>         self.filename     = file_data.original_filename if  
> respond_to?(:filename)
>         if file_data.is_a?(StringIO)
>           file_data.rewind
>           self.temp_data = file_data.read
>         else
>           self.temp_path = file_data.path
>         end
>       end
>
> While I was digging I found out that "file_data" is a ruby Tempfile  
> object. So, I tried to create a dummy file and pass it, but it  
> failed. I found out in the CGI library, it actually extends the  
> Tempfile object and adds some methods/properties. It started to get  
> messy, so I thought I'd ask for advice.
>
> How can I create a valid attachment_fu model spec(so I can start  
> tweaking it to test my other validations)?
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