[Watson1978]

The TCPServer functional examples listen and connect on "localhost", which resolves to ::1 first, while unused_port only checks IPv4. Those examples only detach their servers, so a ::1 listener can stay open on a port that unused_port returns again. The next server then falls back to 127.0.0.1, the client connects to the stale ::1 listener, and the example fails after about 60 seconds, as in this job. This uses 127.0.0.1 on both sides, as the other examples in the file do.

Failures:

  1) Coolio::TCPServer functionaltest #on_read server socket received data
     Failure/Error: expect(data).to eq "zzz"

       expected: "zzz"
            got: "aaa"

       (compared using ==)
     # ./vendor/bundle/ruby/3.3.0/gems/rspec-support-3.13.7/lib/rspec/support.rb:110:in `block in <module:Support>'
     # ./vendor/bundle/ruby/3.3.0/gems/rspec-support-3.13.7/lib/rspec/support.rb:119:in `notify_failure'
...

Types of Changes

• Maintenance.

Contribution

• I tested my changes locally.
• I agree to the Developer's Certificate of Origin 1.1.

🤖 Generated with Claude Code