[PR] Improve find-unfinished-test.py with bug fixes and new features [kafka]

["arvi-refacto (via GitHub)" <gi...@apache.org>]

arvi-refacto opened a new pull request, #21341:
URL: https://github.com/apache/kafka/pull/21341

   ## Summary
   This PR improves the `find-unfinished-test.py` script with critical bug fixes and useful new features for analyzing hanging tests in Gradle logs.
   
   ## Bug Fixes
   - **Fix crash when no test lines found**: Added null check for `last_test_line` to prevent crash when log file contains no test output
   - **Fix KeyError on test completion**: Changed `started.pop(test)` to `started.pop(test, None)` to handle tests that finish without being in STARTED state
   - **Robust error handling**: Added comprehensive error handling for malformed log lines with graceful degradation
   
   ## New Features
   - **`--min-duration` option**: Filter unfinished tests by minimum runtime (in seconds) to focus on long-running tests
   - **`--summary` flag**: Display statistics including total tests processed, average/min/max durations, and malformed line count
   - **Sorted output**: Tests are now sorted by duration (longest first) for easier identification of problematic tests
   - **Enhanced output**: Improved formatting with timestamps, duration in both human-readable and seconds format
   
   ## Code Improvements
   - Extracted `parse_test_line()` and `parse_timestamp()` helper functions for better code organization
   - Added type hints throughout the codebase
   - Added comprehensive docstrings
   - Added usage examples in help text
   - Track and report malformed lines count for better diagnostics
   
   ## Testing
   - Verified script compiles without errors
   - Tested with edge cases (empty files, malformed lines)
   - All existing functionality preserved
   
   ## Impact
   - **Lines changed**: 144 insertions, 26 deletions (net +118 lines)
   - **Backward compatible**: Yes, all existing functionality preserved
   - **Breaking changes**: None


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Re: [PR] Improve find-unfinished-test.py with bug fixes and new features [kafka]

["arvi-refacto (via GitHub)" <gi...@apache.org>]

arvi-refacto closed pull request #21341: Improve find-unfinished-test.py with bug fixes and new features
URL: https://github.com/apache/kafka/pull/21341


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