add test

Gemfile

@@ -51,6 +51,11 @@ group :test do
   gem 'selenium-webdriver'
   # Easy installation and use of web drivers to run system tests with browsers
   gem 'webdrivers'
+  gem 'rails-controller-testing', '1.0.5'
+  gem 'minitest',                 '5.14.4'
+  gem 'minitest-reporters',       '1.3.8'
+  gem 'guard',                    '2.16.2'
+  gem 'guard-minitest',           '2.4.6'
 end
 
 group :production do

Gemfile.lock

@@ -62,6 +62,7 @@ GEM
       zeitwerk (~> 2.3)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
+    ansi (1.5.0)
     bindex (0.8.1)
     bootsnap (1.7.5)
       msgpack (~> 1.0)
@@ -76,12 +77,27 @@ GEM
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
     childprocess (3.0.0)
+    coderay (1.1.3)
     concurrent-ruby (1.1.8)
     crass (1.0.6)
     erubi (1.10.0)
     ffi (1.15.1)
+    formatador (0.2.5)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
+    guard (2.16.2)
+      formatador (>= 0.2.4)
+      listen (>= 2.7, < 4.0)
+      lumberjack (>= 1.0.12, < 2.0)
+      nenv (~> 0.1)
+      notiffany (~> 0.0)
+      pry (>= 0.9.12)
+      shellany (~> 0.0)
+      thor (>= 0.18.1)
+    guard-compat (1.2.1)
+    guard-minitest (2.4.6)
+      guard-compat (~> 1.2)
+      minitest (>= 3.0)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
     jbuilder (2.11.2)
@@ -92,17 +108,30 @@ GEM
     loofah (2.9.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
+    lumberjack (1.2.8)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     marcel (1.0.1)
     method_source (1.0.0)
     mini_mime (1.0.3)
     minitest (5.14.4)
+    minitest-reporters (1.3.8)
+      ansi
+      builder
+      minitest (>= 5.0)
+      ruby-progressbar
     msgpack (1.4.2)
+    nenv (0.3.0)
     nio4r (2.5.7)
     nokogiri (1.11.6-x86_64-linux)
       racc (~> 1.4)
+    notiffany (0.1.3)
+      nenv (~> 0.1)
+      shellany (~> 0.0)
     pg (1.1.4)
+    pry (0.14.1)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     public_suffix (4.0.6)
     puma (5.3.2)
       nio4r (~> 2.0)
@@ -129,6 +158,10 @@ GEM
       bundler (>= 1.15.0)
       railties (= 6.1.3.2)
       sprockets-rails (>= 2.0.0)
+    rails-controller-testing (1.0.5)
+      actionpack (>= 5.0.1.rc1)
+      actionview (>= 5.0.1.rc1)
+      activesupport (>= 5.0.1.rc1)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -145,6 +178,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.1.1)
+    ruby-progressbar (1.11.0)
     rubyzip (2.3.0)
     sass-rails (6.0.0)
       sassc-rails (~> 2.1, >= 2.1.1)
@@ -160,6 +194,7 @@ GEM
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
     semantic_range (3.0.0)
+    shellany (0.0.1)
     spring (2.1.1)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
@@ -204,12 +239,17 @@ DEPENDENCIES
   bootsnap (>= 1.4.4)
   byebug
   capybara (>= 3.26)
+  guard (= 2.16.2)
+  guard-minitest (= 2.4.6)
   jbuilder (~> 2.7)
   listen (~> 3.3)
+  minitest (= 5.14.4)
+  minitest-reporters (= 1.3.8)
   pg (= 1.1.4)
   puma (~> 5.0)
   rack-mini-profiler (~> 2.0)
   rails (~> 6.1.3, >= 6.1.3.2)
+  rails-controller-testing (= 1.0.5)
   sass-rails (>= 6)
   selenium-webdriver
   spring
@@ -224,4 +264,4 @@ RUBY VERSION
    ruby 3.0.1p64
 
 BUNDLED WITH
-   2.2.17
+   2.2.18

app/views/static_pages/help.html.erb

 <h1>StaticPages#help</h1>
 <p>Find me in app/views/static_pages/help.html.erb</p>
+
+<div style="position: fixed; top: 10px; right: 100px" >
+    hehe
+</div>

app/views/static_pages/home.html.erb

 <h1>StaticPages#home</h1>
+
+
+<ul> 
+    <li>day la dong 1</li>
+    <li>day la dong 2</li>
+    <li>day la dong 3</li>
+    <li>day la dong 4</li>
+</ul>
+<a href="https://fb.com/hafmai">Hà</a>
 <p>Find me in app/views/static_pages/home.html.erb</p>

db/schema.rb

+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# This file is the source Rails uses to define your schema when running `bin/rails
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 0) do
+
+end

test/controllers/static_pages_controller_test.rb

 require "test_helper"
 
+# require File.dirname(__FILE__) + '/../test_helper'
+
+
 class StaticPagesControllerTest < ActionDispatch::IntegrationTest
   test "should get home" do
     get static_pages_home_url