Request Specs vs. System Specs Comparison

request.rb

require "rails_helper"

RSpec.describe "User management", type: :request do
  # Runs in about 0.2 seconds (excluding file load time)
  it "lists existing users" do
    User.create!(name: "John", age: 30)

    get users_path

    expect(page).to have_table "Users" do |table|
      expect(table).to have_content "John"
      expect(table).to have_content "30"
    end
  end

  private

  def page = Capybara.string(response.body)
end

system.rb

require "rails_helper"

RSpec.describe "User management", type: :system do
  before do
    driven_by(:selenium_chrome_headless)
    # driven_by(:cuprite) # uncomment this line to use Cuprite
  end

  # Runs in about 2.5 seconds with Selenium (excluding file load time)
  # Runs in about 1.5 seconds with Cuprite (excluding file load time)
  it "lists existing users" do
    User.create!(name: "John", age: 30)

    visit users_path

    within_table "Users" do
      expect(page).to have_content "John"
      expect(page).to have_content "30"
    end
  end
end