Flaky test: web-server-health neighbor-port takeover fails in full-suite runs (fixed ports inside the ephemeral range) #436

Summary

tests/web-server-health.test.ts → "takes over the port after repeated failed binds" intermittently fails when the whole suite runs, and passes standalone.

Details

The test occupies port 48747 and, with Math.random stubbed, expects takeover of neighbor 48748. Both ports sit inside Linux's default ephemeral port range (32768–60999), so any concurrent outbound connection in a busy full-suite run can transiently hold 48748 and make the takeover bind fail.

Observed once in a full bun test run (866 pass / 1 fail); the file passed standalone and on two subsequent full runs, so it is timing/probabilistic, not deterministic.

Suggestion: move the fixed test ports below the ephemeral range (e.g. 28747/28748) or allocate them at runtime.

Environment

• opencode-mem version: 2.34.0 (also observed on a 2.33.0-based branch)
• OpenCode version: N/A
• OS: Linux