Why is Rspec saying “Failure/Error: Unable to find matching line from backtrace”?

Question

I\'m following the rails tutorial here: http://railstutorial.org/chapters/filling-in-the-layout#top

When I run \"rspec spec/\", I get a bunch of errors that look lik

Answer 1

I am only seeing this issue for two of my title tests.

My gemfile is as follows...

source 'http://rubygems.org'

gem 'rails', '3.0.0'
gem 'sqlite3-ruby', '1.2.5', :require => 'sqlite3'
gem 'gravatar_image_tag', '0.1.0'
gem 'will_paginate', '3.0.pre2'

group :development do
  gem 'rspec-rails', '2.0.0.rc'
  gem 'webrat', '0.7.1'
  gem 'annotate-models', '1.0.4'
  gem 'faker', '0.3.1'
end

group :test do
  gem 'rspec', '2.0.0.rc'
  gem 'webrat', '0.7.1'
  gem 'spork', '0.8.4'
  gem 'factory_girl_rails', '1.0'
end

I've tried the betas for rspec-rails as well, to no avail.

The two of the titles that are still giving me errors are the following:

From users_controller_spec.rc

  it "should have the right title" do
    get :index
    response.should have_selector("title", :content => "All users")
  end

  #...

    it "should have the right title" do
      post :create, :user => @attr
      response.should have_selector("title", :content => "Sign up")
    end

The snippet from the errors reads:

Failures:
  1) UsersController GET 'index' for signed-in users should have the right title
     Failure/Error: response.should have_selector("title", :content => "All users")
     expected following output to contain a  tag:
     
     
     
     
     

and

2) UsersController Post 'create' for non-signed in users failure should have the right title
     Failure/Error: response.should have_selector("title", :content => "Sign up")
     expected following output to contain a  tag:
     
     
     
     
     

respectively.

As seen by the output, "Sign Up" and "Index" are clearly shown to the right of the title. This is particularly perplexing in that, the following test does work:

  it "should have the right title" do
    get :new
    response.should have_selector("title", :content => "Sign up")
  end

Which is for the same page and contains the same title as the other "Sign Up" test. Also the get method works in this test but not in the "Index" test.

Help?