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refactor: replace Dictionary with ConcurrentDictionary for thread-safe property injection #3617
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…e property injection
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Claude finished @thomhurst's task —— View job Code Review Completed ✅Reviewing PR: refactor: replace Dictionary with ConcurrentDictionary for thread-safe property injection Todo List:
✅ Code Quality & Best PracticesExcellent implementation! The changes properly address thread-safety concerns with minimal impact:
✅ Thread-Safety AnalysisPerfect thread-safety improvement:
The race condition scenario: // BEFORE (Thread-unsafe):
if (!dict.ContainsKey(key)) // Thread A checks
dict[key] = value; // Thread B might add here, causing overwrite
// AFTER (Thread-safe):
dict.TryAdd(key, value); // Atomic operation✅ Performance ConsiderationsNegligible performance impact:
Given TUnit's guidance that "performance is not optional," this change improves concurrent performance while having minimal single-threaded impact. ✅ Security & CorrectnessNo security concerns identified:
✅ Test Coverage AssessmentExisting coverage appears adequate:
🎯 Specific FeedbackTUnit.Core/TestDetails.cs:36// ✅ GOOD: Interface preserved, implementation improved
public IDictionary<string, object?> TestClassInjectedPropertyArguments { get; init; } = new ConcurrentDictionary<string, object?>();TUnit.Engine/Services/PropertyInitializationOrchestrator.cs:130-132// ✅ EXCELLENT: Atomic operation replaces check-then-set pattern
((ConcurrentDictionary<string, object?>)testContext.Metadata.TestDetails.TestClassInjectedPropertyArguments)
.TryAdd(metadata.PropertyName, resolvedValue);The cast is safe since we control the implementation. Consider adding a comment for future maintainers. ✅ TUnit Guidelines ComplianceFollows all TUnit mandatory rules:
📋 Final Recommendation: APPROVE ✅This is a well-executed thread-safety improvement that:
No changes needed - ready to merge! |
Fixes #3616