follow_redirect doesn't complain about being redirected to the same controller. Closes #5153.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4361 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* follow_redirect doesn't complain about being redirected to the same controller. #5153 [dymo@mk.ukrtelecom.ua]
+
 * Add layout attribute to response object with the name of the layout that was rendered, or nil if none rendered. [Kevin Clark kevin.clark@gmail.com]
 
 * Fix NoMethodError when parsing params like &&. [Adam Greenfield]

actionpack/lib/action_controller/test_process.rb

@@ -374,8 +374,9 @@ module ActionController #:nodoc:
     alias xhr :xml_http_request
 
     def follow_redirect
-      if @response.redirected_to[:controller]
-        raise "Can't follow redirects outside of current controller (#{@response.redirected_to[:controller]})"
+      redirected_controller = @response.redirected_to[:controller]
+      if redirected_controller && redirected_controller != @controller.controller_name
+        raise "Can't follow redirects outside of current controller (from #{@controller.controller_name} to #{redirected_controller})"
       end
 
       get(@response.redirected_to.delete(:action), @response.redirected_to.stringify_keys)

actionpack/test/controller/test_test.rb

@@ -58,8 +58,15 @@ HTML
       redirect_to :generate_url, :id => 5
     end
 
+    def redirect_to_same_controller
+      redirect_to :controller => 'test', :action => 'test_uri', :id => 5
+    end
+
+    def redirect_to_different_controller
+      redirect_to :controller => 'fail', :id => 5
+    end
+
     private
-    
       def rescue_action(e)
         raise e
       end
@@ -405,14 +412,39 @@ HTML
   end
 
   def test_assert_redirected_to_symbol
-    with_routing do |set|
-      set.draw do
-        set.generate_url 'foo', :controller => 'test'
-        set.connect      ':controller/:action/:id'
-      end
-      
+    with_foo_routing do |set|
       get :redirect_to_symbol
+      assert_response :redirect
       assert_redirected_to :generate_url
     end
   end
+
+  def test_assert_follow_redirect_to_same_controller
+    with_foo_routing do |set|
+      get :redirect_to_same_controller
+      assert_response :redirect
+      assert_redirected_to :controller => 'test_test/test', :action => 'test_uri', :id => 5
+      assert_nothing_raised { follow_redirect }
+    end
+  end
+
+  def test_assert_follow_redirect_to_different_controller
+    with_foo_routing do |set|
+      get :redirect_to_different_controller
+      assert_response :redirect
+      assert_redirected_to :controller => 'fail', :id => 5
+      assert_raise(RuntimeError) { follow_redirect }
+    end
+  end
+
+  protected
+    def with_foo_routing
+      with_routing do |set|
+        set.draw do
+          set.generate_url 'foo', :controller => 'test'
+          set.connect      ':controller/:action/:id'
+        end
+        yield set
+      end
+    end
 end