[rspec-users] RSpec-Rails bug with to_xml?

Zach Dennis zach.dennis at gmail.com
Mon Oct 20 09:19:50 EDT 2008

On Mon, Oct 20, 2008 at 7:30 AM, Bira <u.alberton at gmail.com> wrote:
> Hello, everyone. I've been lurking here for a while, but this is my first post.
> I think I've run into a RSpec bug in a Rails project I'm working on. I
> was working on a few REST controllers, and started getting failures on
> a specific spec that verified whether a certain action returned XML
> output. I spent quite a lot of time checking my code to see if it was
> something I did wrong, but it works when I test it manually.
> So I created an empty Rails app, and wrote the bare minimum of code
> necessary to reproduce this problem. I'm using Rails 2.1.1, with
> rspec-1.1.8 and rspec-rails-1.1.8, all installed as gems.
> I started by creating a dead-simple model with two string attributes
> and no validations, along with this fixture:
> # spec/fixtures/users.yml
> one:
>  name: Name
>  email: email
> Then I created a simple controller, and its corresponding spec.
> class UsersController < ApplicationController
>  def index
>    respond_to do |format|
>      format.xml { render :xml => User.find(:all).to_xml}
>    end
>  end
> end
> # spec
> require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
> describe UsersController do
>  fixtures :users
>  it "should return a XML user list" do
>    get :index, :format => :xml
>    response.body.should == User.find(:all).to_xml
>  end
> end
> It all looks straightforward enough - I use the same call on both the
> controller and the spec, so the two results should indeed be the same.
> However, when I run the spec I get this failure:
> 1)
> 'UsersController should return a XML user list' FAILED
> expected: "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<users
> type=\"array\">\n  <user>\n    <created-at
> type=\"datetime\">2008-10-20T11:24:28Z</created-at>\n
> <email>email</email>\n    <id type=\"integer\">953125641</id>\n
> <name>Name</name>\n    <updated-at
> type=\"datetime\">2008-10-20T11:24:28Z</updated-at>\n
> </user>\n</users>\n",
>     got: " " (using ==)
> ./spec/controllers/users_controller_spec.rb:10:
> /usr/lib64/ruby/1.8/timeout.rb:53:in `timeout'
> Finished in 0.256981 seconds
> This happens both when using "rake spec" and when running only that
> spec file. Firing up the app and accessing localhost:3000/users.xml
> returns the correct result. In the "real" project, it's even weirder:
> the "expected" site of the assertion shows a string composed of the
> XML out put concatenated to itself, and the "got" side has the correct
> output. Something like "Expected 'aa' but got 'a'".
> What could the problem be? Is it really a RSpec bug, or is it
> something I did wrong?

Look up  "integrate_views" on the rspec-rails docs:

Also there is a section called "Integration Model". Read that. If you
have any further questions don't hesitate to ask. HTH,

Zach Dennis

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