Files
lmxopcua/tests
Joseph Doherty 8f5b265db8 fix(opcuaclient): native-alarm ConditionRefresh + transition table, branch, dedup and thread-safety fixes (#619 re-review)
Re-review of 3de2cc3b/454775c6:
- AlarmTransitions could not reach (inactive, unacked): (active,acked)->(inactive,unacked) emitted Clear
  (host stayed acked) and a first-seen cleared-unacked condition emitted nothing. The table is now total;
  an exhaustive test replays every (prior, target) pair through the projector's semantics.
- The per-RawPath read-compute-emit was a lock-free TryGetValue/set across SDK publish threads; it now runs
  under one lock with the projection and emission.
- Condition BRANCH events (non-null BranchId) were projected (flipping the trunk) and remembered as the ack
  target (acking the branch); they are dropped. BranchId is select clause 9.
- EventId is copied, not aliased from the decoded notification.
- An unchanged state re-emitted Unspecified; it now emits nothing unless message/severity changed (an
  Unspecified projects from the host projector's default after a redeploy reset it).
- Exact upstream severity rides OpcUaSeverity (#626) instead of being re-bucketed.
- ShutdownAsync no longer forgets the last-told state: a reinit re-subscribes the same set and the refresh
  would otherwise re-raise every acked alarm. A CHANGED set (host rebuilt) forgets it.

ConditionRefresh: called after the alarm event item is created, after an in-place reconnect (subscriptions
found on the new session by display name, since a recreate clones them) and on RefreshRequired. Refresh
markers are never projected. BadNotSupported/BadMethodInvalid/... logs once. Wire test: a condition already
active before subscribe is reported Raise; a release+resubscribe refresh re-raises nothing (falsified by
disabling the refresh call).

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
2026-10-08 17:13:54 -04:00
..