Devise stubbing in action

gistfile1.rb

let(:user) { Factory.create(:user) }

 # To use the methods you can call 
 # methods directly on them like this:

scenario 'works while logged in' do
  as_user(user).visit teach_path
  # ...

# Or you can pass the code you wish
# to run in a block:

scenario 'creating a class' do
  as_user(user) do
     visit teach_path
     click_link('Create')
     current_path.should == new_course_path
     fill_in 'course_title',       :with => course_stub.title
     fill_in 'course_teaser',      :with => course_stub.teaser
     fill_in 'course_experience',  :with => course_stub.experience
     click_button 'Submit'
     # ...