1 files changed, 21 insertions, 0 deletions
diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index c1a68c5786..f57391003a 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -618,5 +618,26 @@ module ApplicationTests
       make_basic_app
       assert app.config.colorize_logging
     end
+
+    test "config.active_record.observers" do
+      add_to_config <<-RUBY
+        config.active_record.observers = :foo_observer
+      RUBY
+
+      app_file 'app/models/foo.rb', <<-RUBY
+        class Foo < ActiveRecord::Base
+        end
+      RUBY
+
+      app_file 'app/models/foo_observer.rb', <<-RUBY
+        class FooObserver < ActiveRecord::Observer
+        end
+      RUBY
+
+      require "#{app_path}/config/environment"
+
+      ActiveRecord::Base
+      assert defined?(FooObserver)
+    end
   end
 end