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web tests: spawn client-config-env children asynchronously - #14899
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On Blacksmith, Bun 1.3's spawnSync in client-config-env.test.ts left the child a zombie and spun the test process at 100% CPU until the 10-minute job timeout. A watchdog dump on #14876 showed the main thread running, the child exited, and no reap. The async child_process.spawn waits through the event loop. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. 📝 WalkthroughWalkthroughThe environment-validation tests now use asynchronous subprocess checks. A shared runner collects child-process output, handles spawn errors, and applies a 30-second timeout. The tested environment configurations and assertions remain unchanged. ChangesEnvironment validation tests
Priority: ➖ Normal Estimated code review effort: 2 (Simple) | ~12 minutes Change: Bug fix Suggested reviewers: Merge Risk: 🔵 Low · up to Two environment-validation tests could pass after a child terminates unexpectedly rather than rejects the invalid URL. This is a bounded test-confidence gap, not an established production failure. 🚥 Pre-merge checks | ✅ 24 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (24 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
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In @web/tests/client-config-env.test.ts:
- Line 357: Update runChild to expose the close event’s signal alongside the
exit code, and update both rejection tests to assert their expected validation
diagnostic and that the child was not terminated by a signal. Ensure timeout or
signal termination cannot satisfy either test.
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Sep 27, 2026
f77bfdd Show a password input indicator while echo is off (manaflow-ai#14867) ec04960 web tests: spawn client-config-env children asynchronously (manaflow-ai#14899) f10c5ce test: say why the portal fixture's scrollback wait failed (manaflow-ai#14898) 2e6a5ba ci: give each virtual display helper its own serial (manaflow-ai#14897) 208a6bf Keep the unfocused-pane dim in step with focus when a pane is revealed (manaflow-ai#14892) 33b4c92 fix: finish a detach-induced checklist popover close without its animation (manaflow-ai#14895) a3baec3 test: free the remaining hosted test terminals and scope the portal leak check (manaflow-ai#14888)
This was referenced Sep 27, 2026
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web/tests/client-config-env.test.tshung web test shard 1/4 until the 10-minute job timeout on every run of #14876, only on Blacksmith (the same shard passes in about 20 s in a debug workflow on the same runner type and on Linux with Bun 1.3.14).A watchdog inside the failing job showed the cause: the child had already exited (zombie, never reaped) while the Bun test process spun its main thread at 100% CPU inside
spawnSync. AspawnSynctimeoutnever fired, so it is Bun's synchronous wait loop, not the child.This switches the two helpers to async
child_process.spawn(the tests becomeasync), which waits through the event loop. Same 18 tests and assertions; passes locally and on #14876's CI.🤖 Generated with Claude Code
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@codesmith-botwith what you need. Autofix is disabled.Summary by cubic
Switches the child-process helpers in
web/tests/client-config-env.test.tsfrom synchronousspawnSyncto asyncspawn, fixing a hang where Bun 1.3's sync wait never observed the child's exit and spun the test process at 100% CPU until the job timed out on Blacksmith runners. The 18 tests now await the spawned child through the event loop; assertions are unchanged. A 30-secondtimeoutis set on each child.Written for commit 849b9f2. Summary will update on new commits.
Summary by CodeRabbit