Add a spec for category list with empty category

spec/components/category_list_spec.rb

@@ -50,11 +50,18 @@ describe CategoryList do
         category_list.categories.should be_blank
       end
 
-      it "returns empty categories for those who can create them" do
+      it "returns empty the empty for those who can create them" do
         Guardian.any_instance.expects(:can_create?).with(Category).returns(true)
         category_list.categories.should_not be_blank
       end
 
+      it 'returns the empty category and a non-empty category for those who can create them' do
+        category_with_topics = Fabricate(:topic, category: Fabricate(:category))
+        Guardian.any_instance.expects(:can_create?).with(Category).returns(true)
+        category_list.categories.should have(2).categories
+        category_list.categories.should include(topic_category)
+      end
+
     end
 
 
@@ -75,8 +82,6 @@ describe CategoryList do
       end
     end
 
-
   end
 
-
 end