login_page.rb

class LoginPage
  include Capybara::DSL
  include Rails.application.routes.url_helpers
  
  def visit
    super login_path
  end
  
  def login_with(params = {})
    fill_login_form(params)
    click_login
  end
  
  private
  
  def fill_login_form(params = {})
    within("#login-form") do
      fill_in "login",    with: params[:email]
      fill_in "password", with: params[:password]
    end
  end
  
  def click_login
    click_button "Login"
  end
end