diff --git a/test/dummy/app/controllers/counters_controller.rb b/test/dummy/app/controllers/counters_controller.rb
index 5e9bdba98..2d4296db4 100644
--- a/test/dummy/app/controllers/counters_controller.rb
+++ b/test/dummy/app/controllers/counters_controller.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CountersController < ApplicationController
   def index
     @counters = [{ name: "Counter 1" }]
diff --git a/test/dummy/config/routes.rb b/test/dummy/config/routes.rb
index 6fdeabe75..0c308456b 100644
--- a/test/dummy/config/routes.rb
+++ b/test/dummy/config/routes.rb
@@ -3,7 +3,7 @@
 Dummy::Application.routes.draw do
   get "no-turbolinks", to: "pages#no_turbolinks"
   resources :pages, only: [:show]
-  resources :counters, only: [:create, :index]
+  resources :counters, only: %i[create index]
   resources :server, only: [:show] do
     collection do
       get :console_example
diff --git a/test/react/rails/realtime_update_test.rb b/test/react/rails/realtime_update_test.rb
index 99d2c1967..6c7f94e70 100644
--- a/test/react/rails/realtime_update_test.rb
+++ b/test/react/rails/realtime_update_test.rb
@@ -28,10 +28,9 @@ def assert_counter_count(page, timer_name, count)
 
       assert_counter_count(page, "Counter 1", 0)
       page.click_button "Increment Counter 1"
-      assert_counter_count(page, "Counter 1", 1)
-
       page.click_button "Add counter"
       sleep 0.1
+
       assert_counter_count(page, "Counter 1", 1)
       assert_counter_count(page, "Counter 2", 0)
     end