Fix: config.action_dispatch.show_exceptions has changed in Rails 7.

Author: dblock

config/environments/test.rb

@@ -28,7 +28,11 @@
   config.cache_store = :null_store
 
   # Raise exceptions instead of rendering exception templates.
-  config.action_dispatch.show_exceptions = false
+  config.action_dispatch.show_exceptions = if Gem::Version.new(Rails.version) >= Gem::Version.new('7.1')
+                                             :none
+                                           else
+                                             false
+                                           end
 
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false