Having trouble testing :( "superclass mismatch" and can't load "test_helper"

Rails
1

I’m having trouble testing my Rails 3 application. Unit testing
doesn’t work. If I try ruby article_test.rb directly, I get a “no
such file to load” error, and if I try rake test:units or ruby unit/
article_test.rb I get this odd “superclass mismatch for class
ArticlesController” error!

I’m hoping I can get this settled…
My test files were generated by the generator…

C:\Users\Family\workspace\jdrampage\test\unit>ruby article_test.rb
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
gem_original_require': no such file to load -- test_helper (LoadError) from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/ custom_require.rb:31:inrequire’
from article_test.rb:1

C:\Users\Family\workspace\jdrampage\test\unit>cd…

C:\Users\Family\workspace\jdrampage\test>ruby unit/article_test.rb
C:/Users/Family/workspace/jdrampage/app/controllers/
articles_controller.rb:1: superclass mismatch for class
ArticlesController (TypeError)
from C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/
active_support/dependencies.rb:239:in require' from C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/ active_support/dependencies.rb:239:inrequire’
from C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/
active_support/dependencies.rb:227:in load_dependency' from C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/ active_support/dependencies.rb:239:inrequire’
from C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/
active_support/dependencies.rb:346:in require_or_load' from C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/ active_support/dependencies.rb:300:independ_on’
from C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/
active_support/dependencies.rb:216:in require_dependency' from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/engine.rb:138:ineager_load!’
from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/
rails/engine.rb:137:in each' from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/engine.rb:137:ineager_load!’
from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/
rails/engine.rb:135:in each' from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/engine.rb:135:ineager_load!’
from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/
rails/application.rb:108:in eager_load!' from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/application/finisher.rb:41 from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/initializable.rb:25:ininstance_exec’
from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/
rails/initializable.rb:25:in run' from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/initializable.rb:50:inrun_initializers’
from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/
rails/initializable.rb:49:in each' from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/initializable.rb:49:inrun_initializers’
from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/
rails/application.rb:134:in initialize!' from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/ rails/application.rb:77:insend’
from C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.3/lib/
rails/application.rb:77:in method_missing' from C:/Users/Family/workspace/jdrampage/config/environment.rb: 5 from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/ custom_require.rb:31:ingem_original_require’
from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/
custom_require.rb:31:in require' from ./test_helper.rb:2 from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/ custom_require.rb:31:ingem_original_require’
from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/
custom_require.rb:31:in `require’
from unit/article_test.rb:1

2

On Tue, Dec 14, 2010 at 9:43 PM, daze [email protected] wrote:

C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
articles_controller.rb:1: superclass mismatch for class
ArticlesController (TypeError)

Did you look at your ArticlesController for clues?

Also, does your app function through the browser but not running the
tests?

Would not hurt to copy your ArticlesController here, and maybe also your
Environment.rb

3

On 15 December 2010 03:43, daze [email protected] wrote:

I’m having trouble testing my Rails 3 application. Unit testing
doesn’t work. If I try ruby article_test.rb directly, I get a “no
such file to load” error, and if I try rake test:units or ruby unit/
article_test.rb I get this odd “superclass mismatch for class
ArticlesController” error!

I’m hoping I can get this settled…
My test files were generated by the generator…

C:\Users\Family\workspace\jdrampage\test\unit>ruby article_test.rb

If you want to run a test directly like this you have to tell it to
include the test directory so it can find the helpers, so from the
root of your app
ruby -I test test/unit/article_test.rb

That is a capital i (for Include)

Colin

4

On Dec 15, 4:02am, Colin L. [email protected] wrote:

If you want to run a test directly like this you have to tell it to
include the test directory so it can find the helpers, so from the
root of your app
ruby -I test test/unit/article_test.rb

That is a capital i (for Include)

Colin

Okay - I guess that solves one of my problems in which I got the “no
such file to load – test_helper” error.

5

I figured it out.

I simply forgot to put “Admin::” for the articles controller in the
admin namespace. Making the controllers start with “class
Admin::ArticlesController” resolved the issue.
Of course I had to add "Admin:: to any other controllers in the admin
namespace that were missing it too.

:slight_smile:

6

On Dec 14, 10:58pm, David K. [email protected] wrote:

Did you look at your ArticlesController for clues?

Um…yes. But I didn’t see anything odd.

Also, does your app function through the browser but not running the tests?

Yes, running rails server works fine. It’s the tests that give this
error.

Would not hurt to copy your ArticlesController here, and maybe also your
Environment.rb

Okay. I’m in Rails 3, though, so environment.rb is probably useless
to look at…
Here’s the articles controller:

class ArticlesController < ApplicationController

GET /articles

GET /articles.xml

def index
@articles = Article.all(:limit => 6)

respond_to do |format|
  format.html # index.html.erb
  format.xml  { render :xml => @articles }
end

end

GET /articles/1

GET /articles/1.xml

def show
@article = Article.find(params[:id])
@section = @article.section

respond_to do |format|
  format.html # show.html.erb
  format.xml  { render :xml => @article }
end

end

GET /articles/new

GET /articles/new.xml

def new
@article = Article.new

respond_to do |format|
  format.html # new.html.erb
  format.xml  { render :xml => @article }
end

end

GET /articles/1/edit

def edit
@article = Article.find(params[:id])
end

POST /articles

POST /articles.xml

def create
@article = Article.new(params[:article])

respond_to do |format|
  if @article.save
    flash[:notice] = 'Article was successfully created.'
    format.html { redirect_to(@article) }
    format.xml  { render :xml => @article, :status

=> :created, :location => @article }
else
format.html { render :action => “new” }
format.xml { render :xml => @article.errors, :status
=> :unprocessable_entity }
end
end
end

PUT /articles/1

PUT /articles/1.xml

def update
@article = Article.find(params[:id])

respond_to do |format|
  if @article.update_attributes(params[:article])
    flash[:notice] = 'Article was successfully updated.'
    format.html { redirect_to(@article) }
    format.xml  { head :ok }
  else
    format.html { render :action => "edit" }
    format.xml  { render :xml => @article.errors, :status

=> :unprocessable_entity }
end
end
end

DELETE /articles/1

DELETE /articles/1.xml

def destroy
@article = Article.find(params[:id])
@article.destroy

respond_to do |format|
  format.html { redirect_to(articles_url) }
  format.xml  { head :ok }
end

end
end

I hope this helps. Though this class is pretty standard…