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test: add e2e tests for concurrent file operations#121

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claude/slack-session-VjayL
Draft

test: add e2e tests for concurrent file operations#121
NavarrePratt wants to merge 2 commits into
mainfrom
claude/slack-session-VjayL

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Summary

  • Add integration tests that exercise parallel file uploads to detect race conditions in the backend's command ID handling
  • Tests include: basic concurrent writes, threaded writes, interleaved read/write, large file uploads, and async pattern
  • Helps reproduce and verify fixes for the AddFile command ID collision bug where ~N-1 of N concurrent requests timeout

Test plan

  • Run mise run test:e2e -- -k test_concurrent to execute the new tests
  • Verify tests detect the race condition on backends without the fix
  • Confirm tests pass on backends with the fix applied

Related

Slack thread: https://coreweave.slack.com/archives/C0AE27R91B7/p1777510544430799

https://claude.ai/code/session_014nN7sJRxa36cGa64Gqstnr


Generated by Claude Code

Add integration tests to exercise parallel file uploads and detect
race conditions in the backend's command ID handling. This helps
reproduce and verify fixes for the AddFile command ID collision bug.

Related: https://coreweave.slack.com/archives/C0AE27R91B7/p1777510544430799

https://claude.ai/code/session_014nN7sJRxa36cGa64Gqstnr
@NavarrePratt NavarrePratt requested a review from a team as a code owner April 30, 2026 00:57
abatilo
abatilo previously approved these changes Apr 30, 2026
Use distinct variable names and explicit type annotations to avoid
mypy inference issues with OperationRef generic types.

https://claude.ai/code/session_014nN7sJRxa36cGa64Gqstnr
@NavarrePratt NavarrePratt marked this pull request as draft April 30, 2026 01:03
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3 participants