Rails の統合テストが通らない

Question

前提・実現したいこと

railsチュートリアルの5.3.4の統合テストが通らず、躓いております。
リンク内容
エラーを解消するにはどのようにすればよろしいでしょうか？

発生している問題・エラーメッセージ

$ rails test:integration
rails aborted!
NameError: undefined local variable or method `root_path' for SiteLayoutTest:Class
/home/ec2-user/environment/favorites_share/test/integration/site_layout_test.rb:4:in `<class:SiteLayoutTest>'
/home/ec2-user/environment/favorites_share/test/integration/site_layout_test.rb:3:in `<top (required)>'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:50:in `require'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:50:in `block in load_tests'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:50:in `each'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:50:in `load_tests'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:39:in `run'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:35:in `rake_run'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/test_unit/testing.rake:32:in `block (3 levels) in <top (required)>'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/commands/rake/rake_command.rb:21:in `block in perform'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/commands/rake/rake_command.rb:18:in `perform'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/command.rb:46:in `invoke'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/railties-5.1.6/lib/rails/commands.rb:16:in `<top (required)>'
/home/ec2-user/environment/favorites_share/bin/rails:9:in `require'
/home/ec2-user/environment/favorites_share/bin/rails:9:in `<top (required)>'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `load'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `call'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/client/command.rb:7:in `call'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/client.rb:30:in `run'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/bin/spring:49:in `<top (required)>'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `load'
/home/ec2-user/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `<top (required)>'
/home/ec2-user/environment/favorites_share/bin/spring:15:in `require'
/home/ec2-user/environment/favorites_share/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'
Tasks: TOP => test:integration
(See full trace by running task with --trace)

　site_layout_test.rb

require 'test_helper'

class SiteLayoutTest < ActionDispatch::IntegrationTest
  get root_path
  assert_template 'static_pages/home'
  assert_select "a[href=?]", root_path, count: 2
  assert_select "a[href=?]", help_path
  assert_select "a[href=?]", about_path
  assert_select "a[href=?]", contact_path
end

　_header.html.erb

    <header class="navbar navbar-fixed-top navbar-inverse">
      <div class="container">
        <%= link_to "Favorites Share app", root_path, id: "logo" %>
        <nav>
          <ul class="nav navbar-nav navbar-right">
            <li><%= link_to "Home", root_path %></li>
            <li><%= link_to "Help", help_path %></li>
            <li><%= link_to "Log in", '#' %></li>
          </ul>
        </nav>
      </div>
    </header>

　_footer.html.erb

<footer class="footer">
  <small>
    The <a href="https://railstutorial.jp/">Ruby on Rails Favorites Share</a>
    by <a href="http://www.michaelhartl.com/">Takuya Yamamoto</a>
  </small>
  <nav>
    <ul>
      <li><%= link_to "About", about_path %></li>
      <li><%= link_to "Contact", contact_path %></li>
      <li>News</li>
    </ul>
  </nav>
</footer>

　routes.rb

Rails.application.routes.draw do

  root 'static_pages#home'
  get  '/help',    to: 'static_pages#help'
  get  '/about',   to: 'static_pages#about'
  get  '/contact', to: 'static_pages#contact'

end

試したこと

Errorの内容はroot_pathの定義がしっかりとできていませんという内容だと思われますので。routes.rbのrootの部分を、変更しないといけないと思っているのですがどのように書き換えれば通るのかわからず止まっています。

補足情報（FW/ツールのバージョンなど）

ここにより詳細な情報を記載してください。

Answer 1

site_layout_test.rbの記述を下記のように変更したところ解決できました。

require 'test_helper'

class SiteLayoutTest < ActionDispatch::IntegrationTest

test "layout links" do
get root_path
assert_template 'static_pages/home'
assert_select "a[href=?]", root_path, count: 2
assert_select "a[href=?]", help_path
assert_select "a[href=?]", about_path
assert_select "a[href=?]", contact_path
end
end

お騒がせいたしました。