added alias functional test

app/controllers/tag_aliases_controller.rb

@@ -1,22 +1,43 @@
 class TagAliasesController < ApplicationController
+  before_filter :admin_only, :only => [:new, :edit, :create, :update, :destroy]
+  respond_to :html, :xml, :json
+  
   def new
+    @tag_alias = TagAlias.new
+    respond_with(@tag_alias)
   end
   
   def edit
+    @tag_alias = TagAlias.find(params[:id])
+    respond_with(@tag_alias)
   end
   
   def index
+    @search = TagAlias.search(params[:search])
+    @tag_aliases = @search.paginate(:page => params[:page])
+    respond_with(@tag_aliases)
   end
   
   def create
+    @tag_alias = TagAlias.create(params[:tag_alias])
+    respond_with(@tag_alias)
   end
   
   def update
+    @tag_alias = TagAlias.find(params[:id])
+    @tag_alias.update_attributes(params[:tag_alias])
+    respond_with(@tag_alias)
   end
   
   def destroy
+    @tag_alias = TagAlias.find(params[:id])
+    @tag_alias.destroy
+    respond_with(@tag_alias)
   end
   
-  def destroy_cache
+  def cache
+    @tag_alias = TagAlias.find(params[:id])
+    @tag_alias.clear_cache
+    render :nothing => true
   end
 end