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test: synchronize replacement WebSocket handshake - #3891

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Sep 18, 2026
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The reconnect shutdown regression could fail during cleanup because the replacement client handshake completed and closed before the server application handler recorded it. Wait for explicit server acceptance before returning the replacement socket to the shutdown path.

The test retains both close-deadline variants, the two-connection assertion, and reader/ownership cleanup checks. No SDK runtime, dependency, or release metadata changes.

Validation: 156 session tests, both targeted variants, Ruff and Pyright pass. The local mypy run reports two identical errors on the unchanged baseline and candidate.

Castiron-Internal-PR: openai/openai-python-internal#110
Castiron-Source-SHA: b1c4143561caf94fc09952581bc7e5b1059c499f
Castiron-Public-Base-SHA: 3b865af
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github-actions Bot commented Sep 18, 2026

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Castiron custom code

✅ No new custom-code files detected.

46 mixed files remain; 0 existing customizations changed.

Compared 3b865af92e8d5de2ceac1786. Generated baselines verified.

46 existing customizations unchanged
  • api.md
  • scripts/castiron/README.md
  • scripts/castiron/custom_code_report.py
  • scripts/castiron/test_custom_code_report.py
  • src/openai/init.py
  • src/openai/_client.py
  • src/openai/resources/audio/transcriptions.py
  • src/openai/resources/audio/translations.py
  • src/openai/resources/beta/agents/sessions/sessions.py
  • src/openai/resources/beta/beta.py
  • src/openai/resources/beta/responses/responses.py
  • src/openai/resources/beta/threads/runs/runs.py
  • src/openai/resources/beta/threads/threads.py
  • src/openai/resources/chat/completions/completions.py
  • src/openai/resources/embeddings.py
  • src/openai/resources/files.py
  • src/openai/resources/live/forks.py
  • src/openai/resources/live/live.py
  • src/openai/resources/live/sideband.py
  • src/openai/resources/realtime/api.md
  • src/openai/resources/realtime/realtime.py
  • src/openai/resources/responses/responses.py
  • src/openai/resources/uploads/uploads.py
  • src/openai/resources/vector_stores/file_batches.py
  • src/openai/resources/vector_stores/files.py
  • src/openai/resources/videos.py
  • src/openai/resources/webhooks/init.py
  • src/openai/resources/webhooks/webhooks.py
  • src/openai/types/beta/agent_session_message.py
  • src/openai/types/chat/init.py
  • src/openai/types/chat/chat_completion_message_tool_call.py
  • src/openai/types/fine_tuning/fine_tuning_job_integration.py
  • src/openai/types/realtime/conversation_item_input_audio_transcription_delta_event.py
  • src/openai/types/realtime/realtime_error_event.py
  • src/openai/types/responses/init.py
  • src/openai/types/responses/response.py
  • src/openai/types/responses/response_function_web_search.py
  • src/openai/types/responses/response_function_web_search_param.py
  • src/openai/types/responses/responses_client_event.py
  • src/openai/types/responses/responses_client_event_param.py

6 more in the full report.

A changed generated baseline means this report cannot reliably identify which handwritten lines changed.

Inspect the custom-code diff

Download the exact patch produced by this run (requires repository access):

gh run download 35289793446 --repo openai/openai-python \
  --name castiron-custom-code-35289793446-1 --dir /tmp/castiron-custom-code-35289793446-1
git apply --stat /tmp/castiron-custom-code-35289793446-1/custom-code.patch
cat /tmp/castiron-custom-code-35289793446-1/custom-code.patch

Or reproduce it from an SDK checkout containing the vendored reporter:

git fetch --no-tags origin 3b865af92e8dc65e14ab6d565304fe778bac1eef 5de2ceac17868a86039f58a015587d96a7ea81bc
python3 scripts/castiron/custom_code_report.py report \
  --base 3b865af92e8dc65e14ab6d565304fe778bac1eef \
  --head 5de2ceac17868a86039f58a015587d96a7ea81bc --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-5de2ceac1786
cat /tmp/castiron-custom-code-5de2ceac1786/custom-code.patch

This is the current full custom patch for mixed files, not an attribution of only the handwritten lines changed by this PR.

Full report and patch

@markstuart-oai
markstuart-oai marked this pull request as ready for review September 18, 2026 00:06
@markstuart-oai
markstuart-oai requested a review from a team as a code owner September 18, 2026 00:06
@chatgpt-codex-connector

chatgpt-codex-connector Bot commented Sep 18, 2026

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Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review Status Commit Review trigger
📝 Code Review Completed 2026-09-18T00:07:39.423615Z 5de2cea Draft marked ready
🔒 Security Review Completed 2026-09-18T00:07:57.355994Z 5de2cea Draft marked ready
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@openai-sdks

openai-sdks Bot commented Sep 18, 2026

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OkTest Summary

236/236 SDK tests passed in 11.66s for Python SDK PR #3891.

Test results — 42 files
Test Result Time
tests/chat-completions-complex-body.test.ts ✅ Passed 197ms
tests/chat-completions-create.test.ts ✅ Passed 213ms
tests/chat-completions-stream.test.ts ✅ Passed 249ms
tests/files-content-binary.test.ts ✅ Passed 181ms
tests/files-create-multipart.test.ts ✅ Passed 257ms
tests/files-list-pagination.test.ts ✅ Passed 161ms
tests/initialize-config.test.ts ✅ Passed 236ms
tests/instance-isolation.test.ts ✅ Passed 209ms
tests/models-list.test.ts ✅ Passed 241ms
tests/responses-background-lifecycle.test.ts ✅ Passed 462ms
tests/responses-body-method-errors.test.ts ✅ Passed 342ms
tests/responses-cancel-timeout.test.ts ✅ Passed 208ms
tests/responses-cancel.test.ts ✅ Passed 308ms
tests/responses-compact-retries.test.ts ✅ Passed 354ms
tests/responses-compact.test.ts ✅ Passed 330ms
tests/responses-create-advanced-stream.test.ts ✅ Passed 126ms
tests/responses-create-advanced.test.ts ✅ Passed 279ms
tests/responses-create-disconnect.test.ts ✅ Passed 1.225s
tests/responses-create-errors.test.ts ✅ Passed 175ms
tests/responses-create-malformed-api-responses.test.ts ✅ Passed 254ms
tests/responses-create-retries.test.ts ✅ Passed 225ms
tests/responses-create-stream-failures.test.ts ✅ Passed 231ms
tests/responses-create-stream-timeout.test.ts ✅ Passed 218ms
tests/responses-create-stream-wire.test.ts ✅ Passed 3.777s
tests/responses-create-stream.test.ts ✅ Passed 253ms
tests/responses-create-terminal-states.test.ts ✅ Passed 243ms
tests/responses-create-timeout.test.ts ✅ Passed 223ms
tests/responses-create.test.ts ✅ Passed 196ms
tests/responses-delete.test.ts ✅ Passed 214ms
tests/responses-input-items-errors.test.ts ✅ Passed 371ms
tests/responses-input-items-list.test.ts ✅ Passed 310ms
tests/responses-input-items-options.test.ts ✅ Passed 383ms
tests/responses-input-tokens-count-timeout.test.ts ✅ Passed 261ms
tests/responses-input-tokens-count.test.ts ✅ Passed 255ms
tests/responses-malformed-inputs.test.ts ✅ Passed 2.831s
tests/responses-not-found-errors.test.ts ✅ Passed 267ms
tests/responses-parse.test.ts ✅ Passed 562ms
tests/responses-retrieve-retries.test.ts ✅ Passed 335ms
tests/responses-retrieve.test.ts ✅ Passed 213ms
tests/responses-stored-method-errors.test.ts ✅ Passed 578ms
tests/retry-behavior.test.ts ✅ Passed 3.111s
tests/sdk-error-shape.test.ts ✅ Passed 307ms

View OkTest run #35289766555

SDK merge (2bf0f8e12f20) · head (5de2ceac1786) · base (3b865af92e8d) · OkTest (cdb90acd46e5)

@jbeckwith-oai jbeckwith-oai left a comment

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The test-only synchronization closes the intended race at the correct boundary: the replacement socket is not returned to the shutdown path until the server application handler has accepted it. Both close-deadline variants and their ownership/cleanup assertions remain intact, the diff is limited to this focused test, and exact-head CI is green. My local rerun was unavailable because the workspace lacks the locked httpx2 test dependency.

@markstuart-oai
markstuart-oai added this pull request to the merge queue Sep 18, 2026
Merged via the queue into main with commit b7116e6 Sep 18, 2026
28 checks passed
@markstuart-oai
markstuart-oai deleted the castiron/promotions/pr-110 branch September 18, 2026 00:24
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