Testing http basic authentication in Rails 5

my_controller_test.rb

class MyControllerTest < ActionDispatch::IntegrationTest
  test "authentication" do
    params = {test: "object"}
    auth_headers = {"Authorization" => "Basic #{Base64.encode64('test:test')}"}

    post '/my-controller', params: params, as: :json
    assert_response 401
    post '/my-controller', params: params, as: :json, headers: auth_headers
    assert_response :success
  end
end

Woot woot, very nice!