1 files changed, 30 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/testing/tagged_logging.rb b/activesupport/lib/active_support/testing/tagged_logging.rb
new file mode 100644
index 0000000000..899467c45f
--- /dev/null
+++ b/activesupport/lib/active_support/testing/tagged_logging.rb
@@ -0,0 +1,30 @@
+require 'active_support/concern'
+
+module ActiveSupport
+  module Testing
+    module TaggedLogging
+      extend ActiveSupport::Concern
+
+      attr_writer :tagged_logger
+
+      def before_setup
+        tagged_logger.push_tags(self.class.name, __name__) if tagged_logging?
+        super
+      end
+
+      def after_teardown
+        super
+        tagged_logger.pop_tags(2) if tagged_logging?
+      end
+
+      private
+        def tagged_logger
+          @tagged_logger ||= (defined?(Rails.logger) && Rails.logger)
+        end
+
+        def tagged_logging?
+          tagged_logger && tagged_logger.respond_to?(:push_tags)
+        end
+    end
+  end
+end