1 files changed, 4 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/testing/isolation.rb b/activesupport/lib/active_support/testing/isolation.rb
index d70d971538..e16b73a036 100644
--- a/activesupport/lib/active_support/testing/isolation.rb
+++ b/activesupport/lib/active_support/testing/isolation.rb
@@ -40,6 +40,10 @@ module ActiveSupport
       def method_missing(name, *args)
         @calls << [name, args]
       end
+
+      def info_signal
+        Signal.list['INFO']
+      end
     end
 
     module Isolation