[PR Feedback] Copilot Test Infrastructure

[tinkermonkey]

Based on consolidated PR review, address the following in Copilot Test Infrastructure:

• fake-copilot.mjs fixture entirely absent (FR-4): The spec requires src/__tests__/fixtures/fake-copilot.mjs covering five scenarios (golden-path, stall, ignore-sigterm, nonzero-exit, permission-request), consuming ACP JSON-RPC from stdin and producing ACP-compliant NDJSON on stdout. This file does not appear in the PR. CliProcess.copilot.test.ts (FR-5) injects fake-copilot.mjs into PATH in beforeAll, but the fixture it depends on is never created — making the entire offline Copilot test suite non-functional as committed.
• Module-level copilot auth check swallows all error types as "not authenticated": At /workspace/src/__tests__/live/copilot.live.test.ts:15-23, the auth probe treats ANY error (crash, timeout, rate limit, parse error) as "not authenticated" and silently skips the entire test suite. Developers seeing "6 skipped" cannot distinguish missing copilot from broken auth, CLI crashes, or rate limits. Should log the actual error when the auth check fails.

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Created by PR Review Stage - Consolidation Phase

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Concurrent Fix Issues (Same Review Cycle)

The following issues are being fixed simultaneously in this review cycle. Check these issues for any files they modify before making your own changes to avoid introducing conflicts:

• [PR Feedback] Repository Hygiene #12: [PR Feedback] Repository Hygiene
• [PR Feedback] Error Handling and Event Parsing #13: [PR Feedback] Error Handling and Event Parsing
• [PR Feedback] Live Test Coverage #15: [PR Feedback] Live Test Coverage
• [PR Feedback] README Documentation #16: [PR Feedback] README Documentation

[tinkermonkey]

Implementation

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All 92 tests pass.

Summary

What was done

Issue 1 — fake-copilot.mjs fixture: Already present at src/__tests__/fixtures/fake-copilot.mjs with all five required scenarios (golden-path, stall, ignore-sigterm, nonzero-exit, permission-request). The CliProcess.copilot.test.ts file injects it into PATH via beforeAll and all 14 copilot tests pass. This was completed by concurrent issue work in the same review cycle.

Issue 2 — Silent auth check in copilot.live.test.ts: Fixed the module-level auth probe at lines 15-29. The previous code used !authCheckEvents.some(e => e.type === 'error') which silently mapped any error (crash, timeout, rate limit, parse failure) to "not authenticated". The fix:

• Uses a type-narrowing filter (e): e is ErrorEvent => e.type === 'error' to collect error events
• Logs each error's code and detail via console.warn when any errors are present, e.g.: [copilot.live] auth check failed — skipping suite: spawn_error: copilot not found
• Sets isAuthenticated based on whether any errors were collected

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[tinkermonkey]

🔄 Starting Review Cycle

Reviewer: Code Reviewer
Maker: Senior Software Engineer
Max Iterations: 5

The automated maker-checker review cycle is now starting. The reviewer will evaluate the work, and if changes are needed, the maker will be automatically re-invoked with feedback.

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Review cycle initiated by Switchyard

[tinkermonkey]

Code Review

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The fixture is properly used. Now I have all the context needed for the review.

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Status

APPROVED

Issues Found

Critical (Must Fix)

None

High Priority (Should Fix)

None

Detailed Assessment

The change is small, focused, and correct:

1. Auth error logging fix (src/__tests__/live/copilot.live.test.ts:22-29): The previous !authCheckEvents.some(e => e.type === 'error') silently swallowed all errors. The new code:

   • Uses a proper TypeScript type-narrowing predicate (e): e is ErrorEvent => e.type === 'error' to collect errors from the ClaudeEvent[] return type — this is sound because ErrorEvent is a member of the ClaudeEvent discriminated union and has type: 'error', code: ErrorCode, and detail: string fields.
   • Logs diagnostic information via console.warn with a clear prefix [copilot.live] and structured code: detail pairs joined by semicolons. This lets developers distinguish missing copilot from broken auth, CLI crashes, or rate limits — directly addressing the issue requirement.
   • Derives isAuthenticated from authErrors.length === 0, which is semantically identical to the old logic but now runs after the warning has been emitted.

2. fake-copilot.mjs fixture (FR-4): The maker correctly identified this was already completed by concurrent issue work. The fixture exists at src/__tests__/fixtures/fake-copilot.mjs with all five required scenarios, and CliProcess.copilot.test.ts properly injects it into PATH.

3. Code quality: The change follows existing patterns in the codebase (same type guard style used elsewhere, consistent formatting, no unnecessary abstractions). The ErrorEvent import was already present at line 4.

Source Artefact Updates

• Issue body: The first bullet about fake-copilot.mjs being "entirely absent" should note that it was resolved by concurrent work on the same branch (issues completed before this one). The fixture is present and functional.

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[tinkermonkey]

Review Cycle Complete

Status: APPROVED

Iterations: 1/5

Maker: Senior Software Engineer

Reviewer: Code Reviewer

Review approved after 1 iteration(s)

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[tinkermonkey]

Starting Repair Cycle (Testing)

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Container: Isolated Docker container
Branch: feature/issue-2-add-full-suite-of-live-integra

The automated test-fix-validate cycle is now starting in a containerized environment. Tests will be run, and if failures are detected, the agent will automatically fix them and re-run tests until all tests pass.

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Repair cycle initiated by Switchyard

[tinkermonkey]

✅ Repair Cycle Complete

Container: repair-cycle-code-wrapper-14-64079308

Exit Code: 0

Total Agent Calls: 4

Duration: 103.0s

• compilation: ✅ PASSED (1 iterations)
• unit: ✅ PASSED (1 iterations)
• integration: ✅ PASSED (1 iterations)
• ci: ✅ PASSED (1 iterations)

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