Test Failure on railsedge

[tannalynn]

We test railsedge in our nightly CI, but after recent commits to rails, this test is failing:

Failure:
NewRelic::Agent::Instrumentation::ActionControllerSubscriberTest#test_records_filtered_request_params_in_txn [/Users/tmcclure/projects/ruby-agent/test/new_relic/agent/instrumentation/rails/action_controller_subscriber.rb:306]:
Expected: "[FILTERED]"
  Actual: "secret"

The cause of this failure seems to be that our block we give to Rails.application.config.to_prepare in lib/new_relic/agent/parameter_filtering.rb is not getting called for some reason.

This is the commit where the issue first starts: rails/rails@896c7fa in gemfile:

 gem 'rails', git: 'https://github.com/rails/rails.git', ref: '896c7faedf01893c50d963aa4f7857b42373bd03'

The commit before that has everything passing rails/rails@f6e36c9

Checking the Gemfile.lock, when it passes it is using rack 2.2.6.2, and when it fails it's using rack 3.0.4.1. It's not clear to me at this point why a change in rack version would prevent our Rails.application.config.to_prepare block in lib/new_relic/agent/parameter_filtering.rb from getting called.

[workato-integration]

https://issues.newrelic.com/browse/NEWRELIC-6547

[fallwith]

Addressed by the Ruby community. Rails EDGE testing resumed on a nightly basis with #1898