Unable to set session hash in Rails 5 controller test

Question

According to the Rails Edge Guide all ActionDispatch::IntegrationTest HTTP requests take optional named keyword arguments:

get post_url, params: { id: 12 }, se

Answer 1

Try set session through open_session method

open_session do |sess|
  sess.get "/login", user_id: users(:stephen).id
  assert_redirected_to root_url, 'Expected redirect to root'
end