update forum topic when alias/implication/update request is updated

test/unit/bulk_update_request_test.rb

@@ -15,5 +15,27 @@ class BulkUpdateRequestTest < ActiveSupport::TestCase
         BulkUpdateRequest.create(:title => "abc", :reason => "zzz", :script => "create alias aaa -> bbb")
       end
     end
+
+    context "with an associated forum topic" do
+      setup do
+        @admin = FactoryGirl.create(:admin_user)
+        @topic = FactoryGirl.create(:forum_topic)
+        @req = FactoryGirl.create(:bulk_update_request, :script => "create alias aaa -> bbb", :forum_topic => @topic)
+      end
+
+      should "update the topic when processed" do
+        assert_difference("ForumPost.count") do
+          CurrentUser.scoped(@admin, "127.0.0.1") do
+            @req.approve!
+          end
+        end
+      end
+
+      should "update the topic when rejected" do
+        assert_difference("ForumPost.count") do
+          @req.reject!
+        end
+      end
+    end
   end
 end