Update test.rb

spec/dummy/config/environments/test.rb

@@ -21,14 +21,21 @@
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
+  config.cache_store = :null_store
 
   # Raise exceptions instead of rendering exception templates.
   config.action_dispatch.show_exceptions = false
 
+  # Use a higher log level to avoid unnecessary clutter and disk IO.
+  config.log_level = :warn
+
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false
   config.action_mailer.perform_caching = false
 
+  # Immediately discard cache in tests
+  config.cache_store = :null_store
+
   # Tell Action Mailer not to deliver emails to the real world.
   # The :test delivery method accumulates sent emails in the
   # ActionMailer::Base.deliveries array.