add static pages

app/controllers/application_controller.rb

@@ -1,4 +1,8 @@
 class ApplicationController < ActionController::Base
   # Only allow modern browsers supporting webp images, web push, badges, import maps, CSS nesting, and CSS :has.
   allow_browser versions: :modern
+
+  def hello
+    render html: "Hello World!"
+  end
 end

app/controllers/static_pages_controller.rb

@@ -0,0 +1,10 @@
+class StaticPagesController < ApplicationController
+  def home
+  end
+
+  def help
+  end
+
+  def about
+  end
+end

app/helpers/static_pages_helper.rb

@@ -0,0 +1,2 @@
+module StaticPagesHelper
+end

app/views/static_pages/about.html.erb

@@ -0,0 +1,2 @@
+<h1>StaticPages#about</h1>
+<p>Find me in app/views/static_pages/about.html.erb</p>

app/views/static_pages/help.html.erb

@@ -0,0 +1,2 @@
+<h1>StaticPages#help</h1>
+<p>Find me in app/views/static_pages/help.html.erb</p>

app/views/static_pages/home.html.erb

@@ -0,0 +1,2 @@
+<h1>StaticPages#home</h1>
+<p>Find me in app/views/static_pages/home.html.erb</p>

config/routes.rb

@@ -1,4 +1,9 @@
 Rails.application.routes.draw do
+  get "static_pages/home"
+  get "static_pages/help"
+  get "static_pages/about"
+
+  root "application#hello"
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 
   # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.

test/controllers/static_pages_controller_test.rb

@@ -0,0 +1,19 @@
+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
+
+  test "Should get about" do
+    get static_pages_about_url
+    assert_response :success
+  end
+end
+