Reduce absolute time dependencies in tests#1649
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The test helper InMemoryTaskStore mutates TaskEntry fields without synchronization. FailTask/CompleteTask/CancelTask set Status before their payload field (Error/Result), so a concurrent reader in GetTask could observe Status == Failed with Error == null and throw 'Nullable object must have a value', surfacing to the client as a McpProtocolException instead of the expected McpException. Serialize all reads and writes under a lock on the backing dictionary, and reorder mutations so Status is assigned last. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
halter73
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Jun 12, 2026
PranavSenthilnathan
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The test helper InMemoryTaskStore mutates TaskEntry fields without synchronization. FailTask/CompleteTask/CancelTask set Status before their payload field (Error/Result), so a concurrent reader in GetTask could observe Status == Failed with Error == null and throw 'Nullable object must have a value', surfacing to the client as a McpProtocolException instead of the expected McpException.
Serialize all reads and writes under a lock on the backing dictionary, and reorder mutations so Status is assigned last.
In addition, use explicit signaling in tests instead of arbitrary wait times.
Fixes #1648
Fixes #1661