Fix timing for streaming test #3628
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Pull Request Overview
This PR fixes timing issues in a streaming test by adjusting timeout values and sleep intervals to ensure consistent test behavior. The changes aim to make the test more stable by allowing exactly three lines to flush before the connection is closed.
Key Changes
- Extended the test timeout from 1 second to 1050 milliseconds to accommodate three line flushes
- Reduced the sleep interval from 400ms to 300ms for more predictable timing
- Added documentation explaining the timing rationale
ctx_test.go
Outdated
| // allow enough time for three lines to flush before | ||
| // the test connection is closed but stop before the | ||
| // fourth line is sent | ||
| Timeout: 1050 * time.Millisecond, |
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[nitpick] The timeout value of 1050ms appears to be a magic number. Consider defining this as a named constant with the calculation (e.g., const testTimeoutForThreeLines = 3*300*time.Millisecond + 150*time.Millisecond) to make the relationship between sleep interval and timeout more explicit.
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Summary of Changes
Hello @ReneWerner87, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request addresses a timing-related issue in a streaming test. By adjusting both the internal sleep interval and the overall test timeout, the changes aim to ensure that the test reliably flushes exactly three lines before the connection is interrupted, thereby improving the test's robustness and consistency.
Highlights
- Test Stability Improvement: The primary goal of this pull request is to enhance the stability of the
Test_Ctx_SendStreamWriter_Interruptedtest by refining its timing parameters. This aims to prevent flakiness and ensure consistent test results. - Timing Parameter Adjustments: The internal sleep duration within the test's streaming loop has been reduced from 400 milliseconds to 300 milliseconds. Concurrently, the overall test timeout has been extended from 1 second to 1050 milliseconds to allow sufficient time for the expected number of lines to flush.
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Code Review
This pull request aims to fix a timing issue in a streaming test by adjusting sleep and timeout values. While the intent is to make the test more stable and expect three lines of output, there's a miscalculation in the new timeout value that would result in four lines being sent, likely causing the test to fail based on the PR description. I've suggested a corrected timeout value to align the test's behavior with its stated goal.
ctx_test.go
Outdated
| // allow enough time for three lines to flush before | ||
| // the test connection is closed but stop before the | ||
| // fourth line is sent | ||
| Timeout: 1050 * time.Millisecond, |
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There appears to be a miscalculation in the timeout value.
With a 300ms sleep interval, the timeline for sending lines is as follows:
- Line 1:
t = 0ms - Line 2:
t = 300ms - Line 3:
t = 600ms - Line 4:
t = 900ms
A timeout of 1050ms would occur after the 4th line is sent, which contradicts the comment and the PR's goal of expecting three lines. This would likely cause the test to fail if it asserts for 3 lines.
To ensure exactly three lines are flushed before the timeout, the timeout should be greater than 600ms but less than 900ms. A value like 850ms would be appropriate and provide a safe margin, aligning with the comment's intent.
| // allow enough time for three lines to flush before | |
| // the test connection is closed but stop before the | |
| // fourth line is sent | |
| Timeout: 1050 * time.Millisecond, | |
| // allow enough time for three lines to flush before | |
| // the test connection is closed but stop before the | |
| // fourth line is sent | |
| Timeout: 850 * time.Millisecond, |
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3628 +/- ##
==========================================
- Coverage 91.14% 91.13% -0.02%
==========================================
Files 112 112
Lines 11310 11310
==========================================
- Hits 10309 10307 -2
- Misses 744 746 +2
Partials 257 257
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Summary
Test_Ctx_SendStreamWriter_Interruptedso three lines flushTesting
make testhttps://chatgpt.com/codex/tasks/task_e_68872608cc548326975ae70abcf0176b