Seven-stage e2e script covering every Galaxy-specific capability surface:
IReadable + IWritable + ISubscribable + IAlarmSource + IHistoryProvider.
Unlike the other drivers there is no per-protocol CLI — Galaxy's proxy
lives in-process with the server + talks to OtOpcUaGalaxyHost over a
named pipe (MXAccess COM is 32-bit-only), so every stage runs through
`otopcua-cli` against the published OPC UA address space.
## Stages
1. Probe — otopcua-cli read on the source NodeId
2. Source read — capture value for downstream comparison
3. Virtual-tag bridge — Phase 7 VirtualTag (source × 2) through
CachedTagUpstreamSource
4. Subscribe-sees-change — data-change events propagate
5. Reverse bridge — opc-ua write → Galaxy; soft-passes if the
attribute's Galaxy-side ACL forbids writes
(`BadUserAccessDenied` / `BadNotWritable`)
6. Alarm fires — scripted-alarm Condition fires with Active
state when source crosses threshold
7. History read — historyread returns samples from the Aveva
Historian → IHistoryProvider path
## Two new helpers in _common.ps1
- `Test-AlarmFiresOnThreshold` — start `otopcua-cli alarms --refresh`
in the background on a Condition NodeId, drive the source change,
assert captured stdout contains `ALARM` + `Active`. Uses the same
Start-Process + temp-file pattern as `Test-SubscribeSeesChange` since
the alarms command runs until Ctrl+C (no built-in --duration).
- `Test-HistoryHasSamples` — call `otopcua-cli historyread` over a
configurable lookback window, parse `N values returned.` marker, fail
if below MinSamples. Works for driver-sourced, virtual, or scripted-
alarm historized nodes.
## Wiring
- `test-all.ps1` picks up the optional `galaxy` sidecar section and
runs the script with the configured NodeIds + wait windows.
- `e2e-config.sample.json` adds a `galaxy` section seeded with the
Phase 7 defaults (`p7-smoke-tag-source` / `-vt-derived` /
`-al-overtemp`) — matches `scripts/smoke/seed-phase-7-smoke.sql`.
- `scripts/e2e/README.md` expected-matrix gains a Galaxy row.
## Prereqs
- OtOpcUaGalaxyHost running (NSSM-wrapped) with the Galaxy + MXAccess
runtime available
- `seed-phase-7-smoke.sql` applied with a live Galaxy attribute
substituted into `dbo.Tag.TagConfig`
- OtOpcUa server running against the `p7-smoke` cluster
- Non-elevated shell (Galaxy.Host pipe ACL denies Admins)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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