cheat sheets.

test/spec/rails by Per "Tuxie" Wigren <per.wigren@gmail.com>

http://svn.techno-weenie.net/projects/plugins/test_spec_on_rails/

This plugin contain some helpers to test your Rails app using test/spec.

Installation
------------
 * Install test/spec: gem install test-spec
 * Install test/spec/rails
 * require 'test/spec/rails' in your test_helper.rb


Model validation
----------------
  @user.should.validate
  @user.should.not.validate
  or:
  @user.should.be.validated
  @user.should.not.be.validated


Redirection
-----------
  response.should.be.redirected           # assert_response :redirect
  response.should.redirect foo_url(@foo)  # assert_redirected_to foo_url(@foo)
  should.redirect_to :action => 'show'    # because "response" is optional
  
  It's aliased as redirect, redirect_to, redirected and redirected_to


Output verification
-------------------
  Wrapper for assert_select:
  
  get :show
  page.should.select "form#user_form"             # require the output to have a
  <form id="user_form">
  
  page.should.select "form#user_form" do |form|
    form.should.select "input[type=submit]"       # the user_form must include a
    <input type="submit">
  end


HTTP Status
-----------
  Wrapper for assert_response:

  status.should.be :success
  status.should.be 200


Which template was rendered?
----------------------------
  Wrapper for assert_template:
  
  template.should.be "foo/show.rhtml"


URL testing
-----------
  get :show, :user_id => 1
  url.should.be "/users/1"
  url.should.be :controller => "users", :action => "show", :user_id => 1


Setup controller for testing + example usage
--------------------------------------------
  context "A guest" do
    use_controller FooController
    
    specify "isn't allowed to foo" do
      post :create, :foo => 'bar'
      flash[:error].should.not.be.blank
      response.should.redirect :controller => 'front', :action => 'show'
      assigns(:foo).errors.on(:bar).should.not.be.blank
      assigns(:foo).should.not.validate
      follow_redirect
      page.should.select "#errors", :text => /#{flash[:error]}/
    end
  end
  
  context "Tuxie" do
    setup do
      use_controller FooController
      login_as :tuxie
    end
    
    specify "may foo" do
      post :create, :foo => 'bar'
      flash[:notice].should.not.be.blank
      assigns(:foo).errors.should.be.empty
      assigns(:foo).should.validate
      should.redirect_to :action => 'show'
      follow_redirect
      page.should.select "#notice", :text => /#{flash[:notice]}/
    end
  end


Misc
----

  page, response and request are just aliases for self (the TestCase) so the 
  following are functionally identical:
  
  page.should.redirect
  response.should.redirect
  request.should.redirect
  
  output, body, html and xhtml return @response.body so the following lines 
  are identical:
  
  output.should.match /foo/
  html.should.match /foo/
  xhtml.should.match /foo/
  body.should.match /foo/
  
  If an object respond to #should_equal, that method will be used instead 
  of assert_equal when using foo.should.equal(bar) or foo.should.be(bar)
  foo.should.not.equal and foo.should.not.be look for #should_not_equal