From 0704df5686a2ff8ebfbf1c1cb867d745a9702014 Mon Sep 17 00:00:00 2001
From: Michael Hartl <michael@michaelhartl.com>
Date: Thu, 26 Aug 2010 16:41:34 -0700
Subject: [PATCH] Sign out

---
 app/controllers/sessions_controller.rb       | 2 ++
 app/helpers/sessions_helper.rb               | 5 +++++
 spec/controllers/sessions_controller_spec.rb | 9 +++++++++
 spec/spec_helper.rb                          | 4 ++++
 4 files changed, 20 insertions(+)

diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index 5569ec3..340a091 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -18,5 +18,7 @@ def create
   end
   
   def destroy
+    sign_out
+    redirect_to root_path
   end
 end
diff --git a/app/helpers/sessions_helper.rb b/app/helpers/sessions_helper.rb
index b1bcce2..9710ac4 100644
--- a/app/helpers/sessions_helper.rb
+++ b/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
diff --git a/spec/controllers/sessions_controller_spec.rb b/spec/controllers/sessions_controller_spec.rb
index 68a7a44..f2165e8 100644
--- a/spec/controllers/sessions_controller_spec.rb
+++ b/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
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 447111a..698c0d1 100644
--- a/spec/spec_helper.rb
+++ b/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