Raise exceptions on unpermitted parameters errors in test environment

config/environments/test.rb

@@ -21,6 +21,9 @@ Rails.application.configure do
 
   config.assets_digest = false
 
+  # Raise exceptions on unpermitted parameters errors
+  config.action_controller.action_on_unpermitted_parameters = :raise
+
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false