test "should get index" do
  get teachers_url
  assert_response :success
end

fill_in "user_email", with: "jdonadob@xxxxx.com"
fill_in "user_password", with: "xxxxxxx"
click_button "Iniciar sesión"

class SomeIntegrationTest < ActionDispatch::IntegrationTest
  include Devise::Test::IntegrationHelpers

  def setup
    sign_in FactoryBot.create(:user)
  end
end