mailing-list-question-how-to-mock-this.rb

 def activate
   begin
     @user = User.find_using_perishable_token!(params[:activation_code], 1.week)
   rescue Exception => e
     flash[:notice] = 'Either you activated it already Or that was an old request'
     redirect_to login_url
   else
     if @user.activate!
       @user.deliver_activation_confirmation!
       flash[:notice] = 'Your username has been entered in the form below. Simply click Login to enter your account!'
       redirect_to login_url(:email => @user.email)
     end
   end #begin
 end

# Now I could write for the else case like :-

 context "when a user tries to activate in a wrong way" do
   setup do
     user = mock('user',:perishable_token => 'abcd')
     time = mock('time')
     perishable_token = mock('perishable_token')
     User.stubs(:find_using_perishable_token!).with(user.perishable_token,time).raises(Exception)
     get :activate,:activation_code => perishable_token
   end
   should_set_the_flash_to /Either you activated it already Or that was an old request/i
   should_redirect_to("the login page") { login_url }
 end

# But I can't write code for success case I tried like below but not correct.
# Please help to correct it :-

 context "when a user is activated by clicking url" do
   setup do
     @user = mock('user',:perishable_token => 'abcd',:email => 'user@test.com')
     time = mock('time')
     perishable_token = mock('perishable_token')
     User.stubs(:find_using_perishable_token!).with(@user.perishable_token,time).returns(@user)
     @user.stubs(:activate!).returns(true)
     @user.stubs(:deliver_activation_confirmation!).returns(true)
     get :activate,:activation_code => perishable_token
   end
   should_set_the_flash_to /Your username has been entered in the form below/i
   should_redirect_to("the login page") { login_url(:email => @user.email) }
 end