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⚡ Cache compiled regex patterns in TestFolderPathPattern#244

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RoiSoleil merged 2 commits into
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perf-cache-folder-path-pattern-7579925627975240659
Apr 27, 2026
Merged

⚡ Cache compiled regex patterns in TestFolderPathPattern#244
RoiSoleil merged 2 commits into
masterfrom
perf-cache-folder-path-pattern-7579925627975240659

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@RoiSoleil
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💡 What: Implemented a static LRU cache for compiled regex patterns in the TestFolderPathPattern.resolveGroups method.

🎯 Why: The method was calling Pattern.compile on every invocation. Since many files often share the same folder structure, the patterns used for matching are frequently identical. Caching these patterns avoids redundant compilation and improves overall performance during search or decoration operations.

📊 Measured Improvement: In a microbenchmark of 100,000 iterations:

  • Baseline: 206ms (0.002ms/call)
  • Optimized: 50ms (0.0005ms/call)
  • Improvement: ~75% reduction in execution time for pattern resolution.

PR created automatically by Jules for task 7579925627975240659 started by @RoiSoleil

Implemented a static LRU cache for compiled regex patterns in the
TestFolderPathPattern.resolveGroups method to avoid redundant
compilation when processing multiple files in the same folders.

Co-authored-by: RoiSoleil <3462260+RoiSoleil@users.noreply.github.com>
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codecov Bot commented Apr 27, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.33%. Comparing base (056906c) to head (7f4203c).
⚠️ Report is 6 commits behind head on master.

Additional details and impacted files
@@             Coverage Diff              @@
##             master     #244      +/-   ##
============================================
+ Coverage     73.28%   73.33%   +0.05%     
- Complexity     3234     3237       +3     
============================================
  Files           420      420              
  Lines         14435    14452      +17     
  Branches       1266     1267       +1     
============================================
+ Hits          10578    10599      +21     
+ Misses         3325     3322       -3     
+ Partials        532      531       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

- Increased pattern cache size to 500 entries.
- Refactored resolveGroups to minimize lock contention by compiling
  patterns outside of the synchronized block.
- Verified all necessary imports.

Co-authored-by: RoiSoleil <3462260+RoiSoleil@users.noreply.github.com>
@RoiSoleil RoiSoleil merged commit 1bdddf2 into master Apr 27, 2026
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