[Fix] AttributeError crash in abort-testing on request timeout

[antonio-amjr]

Fix: project-chip/certification-tool#1152

Fixes crash reported when running th-cli abort-testing — request would time out and instead of printing "Abort request sent (backend may still be processing)", it crashed with AttributeError: 'ResponseHandlingException' object has no attribute 'source'.

ResponseHandlingException stores the wrapped exception as .error, not .source. The timeout-handling branch in abort_testing.py checked the wrong attribute, so it never worked — any real timeout hit the AttributeError instead of the intended graceful message.

Change: cli/th_cli/commands/abort_testing.py — e.source → e.error.

Testing: Reproduced by temporarily lowering the client timeout to force a ReadTimeout; confirmed it now prints "Abort request sent (backend may still be processing)" instead of crashing.

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• th_cli/commands/abort_testing.py

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📝 Walkthrough

Walkthrough

The abort-testing command now checks ResponseHandlingException.error to identify timeout errors. The timeout message and handling of other exceptions remain unchanged.

Priority: ⬇️ Low

Merge Risk: ⚪ Minimal · up to 6f4bf

The timeout handler now checks the exception field that holds the wrapped error. No actionable merge-blocking risk remains in the supplied review context.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly identifies the AttributeError crash and the abort-testing request-timeout scenario. It is concise and directly matches the main change.
Description check	✅ Passed	The description accurately explains the timeout failure, the incorrect .source attribute, the replacement with .error, and the reported test result.

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[mergify]

Queued — the merge queue status continues in this comment ↓.

[oxesoft]

Verified: ResponseHandlingException stores the wrapped exception as .error (no .source), and send_inner wraps httpx timeouts in it. Fix is correct.

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-09-30 18:16 UTC · Rule: default · triggered by @antonio-amjr with the merge queue checkbox
• ✅ Checks skipped · PR is already up-to-date
• ✅ Merged — 2026-09-30 18:17 UTC · at f2669d8283324a993a437e19a3290f6c6aedc279

This pull request spent 14 seconds in the queue, including 2 seconds running CI.

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