Work around "uncaught throw :warden" issue in Rails 4

test/rails_app/app/controllers/streaming_controller.rb

@@ -8,4 +8,16 @@ class StreamingController < ApplicationController
   def index
     render (Devise::Test.rails5_and_up? ? :body : :text) => 'Index'
   end
+
+  # Work around https://github.com/heartcombo/devise/issues/2332, which affects
+  # tests in Rails 4.x (and affects production in Rails >= 5)
+  def process(name)
+    super(name)
+  rescue ArgumentError => e
+    if e.message == 'uncaught throw :warden'
+      throw :warden
+    else
+      raise e
+    end
+  end
 end