index.html.erb

<table>
  <thead>
    <tr>
      <th>Name</th>
      <th>Email></th>
      <th>Country</th>
      <th></th>
    </tr>
  </thead>
  
  <tbody data-collection="users">
    <% @users.each do |user| %>
      <tr data-resource="user">
        <td><%= user.name %></td>
        <td><%= mail_to user.email %></td>
        <td><%= user.country %></td>
        <td>
          <%= link_to 'Edit', edit_user_path(user), class: 'button' %>
          <%= button_to 'Delete', user, method: :delete %>
        </td>
      </tr>
    <% end %>
  </tbody>
</table>

resource_dom_elements.rb

Capybara.add_selector(:models_element) do
  xpath { |name| XPath.css("[data-collection='#{name}']") }
end

Capybara.add_selector(:model_element) do
  xpath { |name| XPath.css("[data-resource='#{name}']") }
end

module ResourceDomElements
  RESOURCES = %w( user post )

  def models_element(model_name)
    find(:models_element, model_name.pluralize)
  end

  def have_models_element(model_name)
    have_selector(:models_element, text: model_name.pluralize)
  end

  def model_element(model_name, options = {})
    find(:model_element, model_name, options)
  end

  def have_model_element(model_name, options)
    have_selector :model_element, model_name, options
  end

  RESOURCES.each do |model_name|
    class_eval <<-METHODS, __FILE__, __LINE__ + 1
      def #{model_name.pluralize}_element
        models_element('#{model_name.pluralize}')
      end

      def have_#{model_name.pluralize}_element
        have_models_element('#{model_name.pluralize}')
      end

      def #{model_name}_element(options = {})
        model_element('#{model_name}', options)
      end

      def have_#{model_name}_element(options)
        have_model_element('#{model_name}', options)
      end
    METHODS
  end
end

users_spec.rb

feature 'Viewing users in a table' do
  include ResourceDomElements
  
  scenario 'lists name, email, country and buttons to manage' do
    create(:user, name: 'Henry', email: '[email protected]', country: 'United States')
    create(:user, name: 'Richard', email: '[email protected]', country: 'Canada')
    
    visit users_path
    
    within users_element do
      expect(page).to have_content 'Henry'
      expect(page).to have_content 'Richard'
    end
    
    within user_element(text: 'Henry') do
      expect(page).to have_link '[email protected]', href: 'mailto:[email protected]'
      expect(page).to have_content 'United States'
      expect(page).to have_link 'Edit'
      expect(page).to have_button 'Delete'
  end
end