test(tools): poll for listening address in foreground server test by PierrunoYT · Pull Request #1110 · Twigpine/zero

PierrunoYT · 2026-10-02T17:29:40Z

Summary

TestExecCommandForegroundServerReturnsSessionAndServesHTTP read the helper's listening <addr> line from the first exec_command result only (yield_time_ms: 500). On a loaded Windows runner, process start-up plus net.Listen can take longer than that, so the first result returned Command is still running… session_id: 1000 with no address and the test failed, although the session was running correctly.

This change:

polls the session with write_stdin (empty chars, yield_time_ms: 250) and accumulates output until parseListeningAddress finds the address, with a 20 s deadline;
registers the t.Cleanup that interrupts the session before the address check, so the server is also stopped on an early failure (this removes the follow-on "test root … still held after the cleanup deadline" message).

The test still checks that a foreground server returns a session_id and serves zero-server-ok over HTTP. Only internal/tools/exec_command_test.go changes.

Linked issue

Fixes #1097

Verification

Failing without the change: with the first call's yield_time_ms forced to 1 on the old code, the test fails with the exact message from the issue (server output did not include listening address: "Command is still running.\nsession_id: 1000…", followed by test root … still held after the cleanup deadline). With the new code and the same forced yield, it passes.
With the real yield_time_ms: 500, -count=5 passes locally (Windows).
go build ./..., go vet ./..., gofmt -l internal/tools, git diff HEAD --check clean; go test ./internal/tools/ passes.
Not run locally: go test -race (cgo unavailable in this environment), make targets, go test ./..., smoke, make vulncheck. Relying on CI for those.

Checklist

The linked issue already has the issue-approved label.
go build ./..., go vet ./..., and go test ./... pass locally. (build and vet pass; only ./internal/tools tests were run)
gofmt clean.
Tests added/updated for the change (and run under -race where relevant). (test updated; -race not run locally)
UI changes include screenshots or a short recording where possible. (no UI change)

🤖 Generated with Claude Code

Summary by CodeRabbit

Tests
- Improved reliability of the foreground server test by allowing more time for the server to start and reporting accumulated output when startup or HTTP reachability fails.

Copilot

Copilot review overview

🟢 Approval recommended

The focused test change correctly addresses the documented timing race and ensures early-failure cleanup.

Review effort: Balanced
Findings: None

What changed in this PR

Improves Windows CI reliability by polling the foreground server session until its listening address is available.

Changes:

Polls and accumulates session output for up to 20 seconds.
Registers server cleanup before address validation.

File	Description
`internal/tools/exec_command_test.go`	Makes foreground-server startup checks resilient to slow runners.

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coderabbitai · 2026-10-02T17:33:39Z

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Walkthrough

The foreground server test now polls its session for up to 20 seconds while collecting output. It uses the collected output when reporting polling, address detection, and HTTP reachability failures.

Changes

Foreground server test

Layer / File(s)	Summary
Session polling and HTTP check `internal/tools/exec_command_test.go`	The test registers cleanup before polling. It polls every 250 ms for up to 20 seconds and accumulates output until it finds the listening address. Polling and address detection failures report collected output. The HTTP reachability failure also includes all collected output.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~8 minutes

Change: Bug fix · Severity of issue fixed: Low

Suggested reviewers: anandh8x, vasanthdev2004, euxaristia

Merge Risk: 🔵 Low · up to e7774

Only a test changes, and it is expected to be more reliable than before. A rare chunk-boundary case could still make it fail, and removing the inserted newline avoids that. Production behavior is unaffected.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely describes the main change: updating the foreground server test to poll for the listening address.
Linked Issues check	✅ Passed	The change meets issue `#1097`. `TestExecCommandForegroundServerReturnsSessionAndServesHTTP` polls the foreground session with `write_stdin`, accumulates output, and waits up to 20 seconds for `parseLis…
Out of Scope Changes check	✅ Passed	The change is limited to the test requested by issue `#1097` in `internal/tools/exec_command_test.go`. It does not change production behavior or unrelated functionality. The polling logic and cleanup or…

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Actionable comments posted: 1

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Inline comments:
Review comments at @internal/tools/exec_command_test.go:
- Line 394: Update the poll-output accumulation so it appends `poll.Output`
directly to `output` without inserting a newline, preserving raw chunks across
polls for `parseListeningAddress`.

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internal/tools/exec_command_test.go

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TestExecCommandForegroundServerReturnsSessionAndServesHTTP parsed the helper's listening address from the first exec_command result only, with a 500 ms yield. On a loaded Windows runner the helper had not printed its address yet, so the test failed even though the session was running. Poll the session with write_stdin until the address appears (20 s deadline), and register the cleanup before the address check so the server is stopped on early failure too. Fixes Twigpine#1097 Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Copilot AI balanced review requested due to automatic review settings October 2, 2026 17:29

Copilot started reviewing on behalf of PierrunoYT October 2, 2026 17:30

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Comment thread internal/tools/exec_command_test.go

PierrunoYT force-pushed the fix/exec-command-test-windows-flake branch from e7774e3 to fcf568f Compare October 14, 2026 12:53

coderabbitai Bot approved these changes Oct 14, 2026

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kevincodex1 approved these changes Oct 14, 2026

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kevincodex1 merged commit a0979fb into Twigpine:main Oct 14, 2026
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test(tools): poll for listening address in foreground server test - #1110

test(tools): poll for listening address in foreground server test#1110
kevincodex1 merged 1 commit into
Twigpine:mainfrom
PierrunoYT:fix/exec-command-test-windows-flake

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PierrunoYT commented Oct 2, 2026 • edited by coderabbitai Bot Loading Uh oh! There was an error while loading. Please reload this page.

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PierrunoYT commented Oct 2, 2026 •

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