Improve deprecation message for enqueue returning false

And make sure new applications in Rails 6.0 has this config enabled.

Also, improve test coverage and add a CHANGELOG entry.

1 files changed, 4 insertions, 0 deletions

diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index d6f8c4f47c..f30e5d2a0f 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -127,6 +127,10 @@ module Rails
           if respond_to?(:action_dispatch)
             action_dispatch.use_cookies_with_metadata = true
           end
+
+          if respond_to?(:active_job)
+            active_job.return_false_on_aborted_enqueue = true
+          end
         else
           raise "Unknown version #{target_version.to_s.inspect}"
         end