This issue is to track all the test files that have console.log|error that can be replaced with debug statements. The consideration is that only informative messages can be replaced, not the one that influence the test logic itself. A good candidate for a future code & learn. Recommend one per person, doing more does not add value. Refs: https://github.com/nodejs/node/pull/32588#issuecomment-607476500 Checklist for reference **test/parallel** - [ ] test-cluster-setup-master-cumulative.js - [ ] test-cluster-setup-master-multiple.js - [ ] test-cluster-worker-wait-server-close.js - [ ] test-code-cache.js - [ ] test-crypto.js - [ ] test-dgram-close.js - [ ] test-domain-http-server.js - [ ] test-domain-stack.js - [ ] test-event-emitter-listeners-side-effects.js - [ ] test-event-emitter-subclass.js - [ ] test-exception-handler2.js [I am still building the list]