Fix first event receiver thread safety using GetOnlyDictionary + Task pattern#2917

Merged

thomhurst merged 9 commits intomainfrom

copilot/fix-2916

Aug 18, 2025

Commits on Aug 18, 2025

Initial analysis of IFirstTestInAssemblyEventReceiver and IFirstTestInClassEventReceiver regression issue

Copilot
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thomhurst
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Fix regression: Clear first-event tracking dictionaries in InitializeTestCounts to ensure proper reset between test executions

Copilot
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thomhurst
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Add regression test for first event receivers and finalize fix

Copilot
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thomhurst
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Implement Task-based GetOrAdd pattern for first event synchronization

claude[bot]
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thomhurst
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Fix .NET Framework 4.7.2 compatibility in FirstEventTrackerTest

claude[bot]
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thomhurst
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Fix thread safety by using GetOnlyDictionary instead of ConcurrentDictionary for first event tracking

Copilot
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thomhurst
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Fix missing using System.Threading in GetOnlyDictionary

claude[bot]
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thomhurst
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Fix thread safety hang by using direct Task return instead of ValueTask.AsTask()

claude[bot]
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thomhurst
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Fix session event receiver thread safety by using GetOnlyDictionary pattern

Copilot
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thomhurst
committed