Add a static page controller

app/assets/javascripts/static_pages.coffee

+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/static_pages.scss

+// Place all the styles related to the static_pages controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/static_pages_controller.rb

+class StaticPagesController < ApplicationController
+  def home
+  end
+
+  def help
+  end
+end

app/helpers/static_pages_helper.rb

+module StaticPagesHelper
+end

app/views/static_pages/help.html.erb

+<h1>StaticPages#help</h1>
+<p>Find me in app/views/static_pages/help.html.erb</p>

app/views/static_pages/home.html.erb

+<h1>StaticPages#home</h1>
+<p>Find me in app/views/static_pages/home.html.erb</p>

config/routes.rb

 Rails.application.routes.draw do
+  get 'static_pages/home'
+  get 'static_pages/help'
   root 'application#hello'
 end

test/controllers/static_pages_controller_test.rb

+require 'test_helper'
+
+class StaticPagesControllerTest < ActionDispatch::IntegrationTest
+  test "should get home" do
+    get static_pages_home_url
+    assert_response :success
+  end
+
+  test "should get help" do
+    get static_pages_help_url
+    assert_response :success
+  end
+
+end