Sign out

app/controllers/sessions_controller.rb

@@ -18,5 +18,7 @@ def create
   end
 
   def destroy
+    sign_out
+    redirect_to root_path
   end
 end

app/helpers/sessions_helper.rb

@@ -17,6 +17,11 @@ def signed_in?
     !current_user.nil?
   end
 
+  def sign_out
+    cookies.delete(:remember_token)
+    self.current_user = nil
+  end
+
   private
 
     def user_from_remember_token

spec/controllers/sessions_controller_spec.rb

@@ -58,4 +58,13 @@
       end
     end
   end
+
+  describe "DELETE 'destroy'" do
+    it "should sign a user out" do
+      test_sign_in(Factory(:user))
+      delete :destroy
+      controller.should_not be_signed_in
+      response.should redirect_to(root_path)
+    end
+  end
 end

spec/spec_helper.rb

@@ -36,6 +36,10 @@
     # Emulate initializer set_clear_dependencies_hook in 
     # railties/lib/rails/application/bootstrap.rb
     ActiveSupport::Dependencies.clear
+
+    def test_sign_in(user)
+      controller.current_user = user
+    end
   end
 end