diff --git a/docs/drivers/README.md b/docs/drivers/README.md
index 0a06ffff..9982505f 100644
--- a/docs/drivers/README.md
+++ b/docs/drivers/README.md
@@ -43,11 +43,13 @@ Reading the Tags column:
| Cell | Meaning |
|---|---|
-| `—` | the driver cannot report skips. **Not** the same as reporting none. |
-| `12 tags` | the driver reports, and skipped nothing. |
+| `—` | **no answer.** Either the driver cannot report skips, or it never got as far as building a tag table (it faulted during initialise). Deliberately *not* the same as reporting none. |
+| `12 tags` | the driver built a table, and skipped nothing. |
| `20 / 22 skipped` (amber) | partly working — some tags poll, some do not. |
| `22 / 22 skipped` (red) | polling **nothing**. The state most likely to look healthy, because it has no failing reads to report. |
+That first row is a distinction the live rig forced. A pre-fix build rendered `0 tags` for two drivers that had faulted during initialise — each with two authored tags — because a never-built ledger returned a zero report. A zero report is a *positive claim* ("this driver skipped nothing"), and making it on behalf of a driver that never looked is the same quiet inaccuracy the column exists to remove. `GetSkippedTags()` now returns null until the first committed build.
+
Three properties worth knowing:
- **A skip never changes driver state.** Latching non-Healthy for a config problem would satisfy both halves of the [#527](https://gitea.dohertylan.com/dohertj2/lmxopcua/issues/527) comms-loss conjunction — *90 s without a successful read AND non-Healthy* — and a driver whose tags were all skipped has no successful reads by construction, so it would reconnect-loop forever against a device that is perfectly fine. The signal is additive to the state, not a change of it.
diff --git a/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/ISkippedTagReporter.cs b/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/ISkippedTagReporter.cs
index dec8a980..eead5914 100644
--- a/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/ISkippedTagReporter.cs
+++ b/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/ISkippedTagReporter.cs
@@ -44,8 +44,15 @@ public interface ISkippedTagReporter
/// Must be a pure in-memory read with no I/O — it is called on the health-publish path, is
/// deliberately NOT routed through the resilience pipeline, and must never block.
///
- /// The current report; never null. An all-zero report means "nothing skipped".
- SkippedTagReport GetSkippedTags();
+ ///
+ /// The report from the driver's most recent tag-table build, or when it has
+ /// not built one yet — a driver that faulted during initialise has no answer, which is not
+ /// the same as the answer "nothing skipped". Returning a zero report there would state that a
+ /// driver with a dozen authored tags has none, which is the class of quiet inaccuracy this whole
+ /// capability exists to remove. (Found on the docker-dev rig, where two faulted drivers each
+ /// rendered "0 tags" against two authored ones.)
+ ///
+ SkippedTagReport? GetSkippedTags();
}
/// One authored tag a driver could not build into its poll table, and why.
@@ -71,9 +78,6 @@ public sealed record SkippedTag(string RawPath, string Reason);
///
public sealed record SkippedTagReport(int AuthoredCount, int SkippedCount, IReadOnlyList Sample)
{
- /// A driver that has authored nothing and skipped nothing.
- public static readonly SkippedTagReport Empty = new(0, 0, []);
-
/// Whether any authored tag was skipped — i.e. whether this is worth an operator's attention.
public bool HasSkips => SkippedCount > 0;
@@ -113,7 +117,9 @@ public sealed class SkippedTagLedger
public const int MaxSample = 20;
private readonly object _gate = new();
- private SkippedTagReport _visible = SkippedTagReport.Empty;
+
+ /// Null until the first — "no answer yet", never a zero report.
+ private SkippedTagReport? _visible;
private int _stagedAuthored;
private int _stagedSkipped;
@@ -168,8 +174,9 @@ public sealed class SkippedTagLedger
}
/// The current published snapshot.
- /// The last committed report, or before the first commit.
- public SkippedTagReport Snapshot()
+ /// The last committed report, or before the first commit — a driver
+ /// that has not built a tag table has no answer, and a zero report would be a false one.
+ public SkippedTagReport? Snapshot()
{
lock (_gate) return _visible;
}
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriver.cs
index 3ee99b70..2d6c6d06 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriver.cs
@@ -31,7 +31,7 @@ public sealed class AbCipDriver : IDriver, IReadable, IWritable, ITagDiscovery,
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
private AbCipDriverOptions _options;
private readonly string _driverInstanceId;
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy/AbLegacyDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy/AbLegacyDriver.cs
index ea28176b..3d6aed9b 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy/AbLegacyDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy/AbLegacyDriver.cs
@@ -17,7 +17,7 @@ public sealed class AbLegacyDriver : IDriver, IReadable, IWritable, ITagDiscover
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
/// Mutable so can adopt a re-parsed config on reinitialize
/// (#516). Only ever written on the init path, before any reader/session uses it.
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Calculation/CalculationDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Calculation/CalculationDriver.cs
index 92f0cc14..3c1d9f2f 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Calculation/CalculationDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Calculation/CalculationDriver.cs
@@ -42,7 +42,7 @@ public sealed class CalculationDriver : IDriver, IDependencyConsumer, ISubscriba
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
// OPC UA status codes surfaced by the calc driver.
private const uint StatusGood = 0u;
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasDriver.cs
index 0dc16118..d06529be 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasDriver.cs
@@ -27,7 +27,7 @@ public sealed class FocasDriver : IDriver, IReadable, IWritable, ITagDiscovery,
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
/// Mutable so can adopt a re-parsed config (#516). Written only
/// on the init path, together with , before either is used.
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/GalaxyDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/GalaxyDriver.cs
index b1366ea2..153160c6 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/GalaxyDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/GalaxyDriver.cs
@@ -45,7 +45,7 @@ public sealed class GalaxyDriver
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
private readonly string _driverInstanceId;
private readonly GalaxyDriverOptions _options;
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.MTConnect/MTConnectDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.MTConnect/MTConnectDriver.cs
index bf313b20..6302aa9f 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.MTConnect/MTConnectDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.MTConnect/MTConnectDriver.cs
@@ -79,7 +79,7 @@ public sealed class MTConnectDriver
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
///
/// The Agent could not be reached, answered unusably, or blew the per-call deadline. Distinct
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Modbus/ModbusDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Modbus/ModbusDriver.cs
index 9f1153f6..45d358f5 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Modbus/ModbusDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Modbus/ModbusDriver.cs
@@ -25,7 +25,7 @@ public sealed class ModbusDriver
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
// ---- instance fields (grouped at top for auditability) ----
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Mqtt/MqttDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Mqtt/MqttDriver.cs
index f1fee36c..ab4d3758 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Mqtt/MqttDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Mqtt/MqttDriver.cs
@@ -70,7 +70,7 @@ public sealed class MqttDriver
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
// ---- Write status codes (Gitea #508) ----
//
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient/OpcUaClientDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient/OpcUaClientDriver.cs
index 28639053..80ddbd8e 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient/OpcUaClientDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient/OpcUaClientDriver.cs
@@ -37,7 +37,7 @@ public sealed class OpcUaClientDriver : IDriver, ITagDiscovery, IReadable, IWrit
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
///
/// Recomputes the skip report from the freshly-built map. Derived by re-asking the map to resolve
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs
index 89c7a6c8..04ebf8ae 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs
@@ -36,7 +36,7 @@ public sealed class S7Driver
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
private readonly string _driverInstanceId;
private readonly ILogger _logger;
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Sql/SqlDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Sql/SqlDriver.cs
index 2058d4cb..bdaa1702 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Sql/SqlDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Sql/SqlDriver.cs
@@ -46,7 +46,7 @@ public sealed class SqlDriver
private IReadOnlyList _blobSkips = [];
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
///
/// Republishes the skip ledger as the union of the blob-level skips and the catalog gate's
diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT/TwinCATDriver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT/TwinCATDriver.cs
index 210cd29a..1775959f 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT/TwinCATDriver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT/TwinCATDriver.cs
@@ -17,7 +17,7 @@ public sealed class TwinCATDriver : IDriver, IReadable, IWritable, ITagDiscovery
private readonly SkippedTagLedger _skippedTags = new();
///
- public SkippedTagReport GetSkippedTags() => _skippedTags.Snapshot();
+ public SkippedTagReport? GetSkippedTags() => _skippedTags.Snapshot();
// Mutable so ReinitializeAsync can apply a new config generation. The constructor seeds
// it; InitializeAsync re-parses driverConfigJson over the top of it.
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Hosts.razor b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Hosts.razor
index 0957c267..80ca1f26 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Hosts.razor
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Hosts.razor
@@ -234,8 +234,11 @@ else
Healthy, Errors/5 min stays 0, Last error stays empty, and Last
read keeps advancing off the tags that DID map. On the Makino in
#540 that read as a perfectly healthy driver ignoring 20 of its 22
- tags. "—" means the driver cannot report skips, which is distinct
- from reporting none. *@
+ tags. "—" means NO ANSWER — either the driver cannot report skips,
+ or it faulted before building a tag table — which is distinct from
+ the positive claim "this driver skipped nothing". A pre-fix build
+ rendered "0 tags" for two faulted drivers on the docker-dev rig
+ that had two authored tags apiece. *@
@if (d.SkippedTags is null)
{
—
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Hosts/HostsDriverView.cs b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Hosts/HostsDriverView.cs
index 0cadfb89..62e752d5 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Hosts/HostsDriverView.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Hosts/HostsDriverView.cs
@@ -44,9 +44,10 @@ public sealed record HostsDriverInstanceInfo(string DriverInstanceId, string Clu
/// Per-host connectivity for a multi-device driver, ordered by host name; null
/// when the driver reports no per-host detail. Lets one unreachable device show even while the driver
/// row itself is Healthy.
-/// Authored tags the driver could not build into its poll table; null when the
-/// driver cannot report them. Lets "ignoring 20 of 22 tags" show even while every other column on the
-/// row — state, last read, error count, last error — reads perfectly healthy (Gitea #541).
+/// Authored tags the driver could not build into its poll table; null when there
+/// is no answer — the driver cannot report skips, or it faulted before building a tag table. Lets
+/// "ignoring 20 of 22 tags" show even while every other column on the row — state, last read, error
+/// count, last error — reads perfectly healthy (Gitea #541).
public sealed record HostsDriverRow(
string DriverInstanceId, string? Name, string? DriverType, string State,
DateTime? LastSuccessfulReadUtc, string? LastError, int ErrorCount5Min, DateTime PublishedUtc,
diff --git a/tests/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions.Tests/SkippedTagLedgerTests.cs b/tests/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions.Tests/SkippedTagLedgerTests.cs
index eb19b7d9..63a20cde 100644
--- a/tests/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions.Tests/SkippedTagLedgerTests.cs
+++ b/tests/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions.Tests/SkippedTagLedgerTests.cs
@@ -9,17 +9,45 @@ namespace ZB.MOM.WW.OtOpcUa.Core.Abstractions.Tests;
///
public sealed class SkippedTagLedgerTests
{
+ ///
+ /// A ledger that has never built reports NO ANSWER, not a clean bill of health. Caught on
+ /// the docker-dev rig: two drivers that faulted during initialise each rendered "0 tags" on
+ /// /hosts against two authored tags apiece. A zero report is a positive claim — "this driver
+ /// skipped nothing" — and making it on behalf of a driver that never got as far as looking is the
+ /// same species of quiet inaccuracy this capability exists to remove.
+ ///
[Fact]
- public void A_fresh_ledger_reports_nothing()
- {
- var report = new SkippedTagLedger().Snapshot();
+ public void A_ledger_that_has_never_built_reports_no_answer_rather_than_a_clean_one()
+ => new SkippedTagLedger().Snapshot().ShouldBeNull();
- report.AuthoredCount.ShouldBe(0);
+ /// An empty deployment that DID build reports a zero report — distinct from the above.
+ [Fact]
+ public void A_committed_empty_build_reports_zero_rather_than_no_answer()
+ {
+ var ledger = new SkippedTagLedger();
+ ledger.BeginRebuild(0);
+ ledger.Commit();
+
+ var report = ledger.Snapshot();
+ report.ShouldNotBeNull();
+ report!.AuthoredCount.ShouldBe(0);
report.SkippedCount.ShouldBe(0);
- report.Sample.ShouldBeEmpty();
report.HasSkips.ShouldBeFalse();
}
+ ///
+ /// An in-flight first build is still "no answer" — the staging state must not leak as a report.
+ ///
+ [Fact]
+ public void A_first_build_still_in_progress_reports_no_answer()
+ {
+ var ledger = new SkippedTagLedger();
+ ledger.BeginRebuild(10);
+ ledger.Skip("a", "r");
+
+ ledger.Snapshot().ShouldBeNull();
+ }
+
[Fact]
public void A_committed_build_reports_its_skips_with_the_authored_denominator()
{
@@ -30,7 +58,7 @@ public sealed class SkippedTagLedgerTests
ledger.Skip("Line1/Makino/Identity/Version", "invalid Address");
ledger.Commit();
- var report = ledger.Snapshot();
+ var report = ledger.Snapshot()!;
report.AuthoredCount.ShouldBe(22);
report.SkippedCount.ShouldBe(2);
report.Sample.Select(s => s.RawPath)
@@ -54,7 +82,7 @@ public sealed class SkippedTagLedgerTests
ledger.Skip("c", "r");
ledger.Commit();
- ledger.Snapshot().SkippedEverything.ShouldBeTrue();
+ ledger.Snapshot()!.SkippedEverything.ShouldBeTrue();
}
///
@@ -70,7 +98,7 @@ public sealed class SkippedTagLedgerTests
ledger.BeginRebuild(0);
ledger.Commit();
- ledger.Snapshot().SkippedEverything.ShouldBeFalse();
+ ledger.Snapshot()!.SkippedEverything.ShouldBeFalse();
}
///
@@ -86,7 +114,7 @@ public sealed class SkippedTagLedgerTests
for (var i = 0; i < 500; i++) ledger.Skip($"tag-{i}", "TagConfig did not map to a definition");
ledger.Commit();
- var report = ledger.Snapshot();
+ var report = ledger.Snapshot()!;
report.SkippedCount.ShouldBe(500);
report.Sample.Count.ShouldBe(SkippedTagLedger.MaxSample);
report.Sample[0].RawPath.ShouldBe("tag-0", "the sample keeps the FIRST skips, in encounter order");
@@ -108,13 +136,13 @@ public sealed class SkippedTagLedgerTests
ledger.BeginRebuild(10);
ledger.Skip("new-1", "r");
- var midRebuild = ledger.Snapshot();
+ var midRebuild = ledger.Snapshot()!;
midRebuild.SkippedCount.ShouldBe(1);
midRebuild.Sample.Single().RawPath.ShouldBe("old");
ledger.Skip("new-2", "r");
ledger.Commit();
- ledger.Snapshot().Sample.Select(s => s.RawPath).ShouldBe(["new-1", "new-2"]);
+ ledger.Snapshot()!.Sample.Select(s => s.RawPath).ShouldBe(["new-1", "new-2"]);
}
///
@@ -133,7 +161,7 @@ public sealed class SkippedTagLedgerTests
ledger.Skip("would-have-been-reported", "invalid Address");
// …driver throws here; no Commit.
- ledger.Snapshot().Sample.Single().RawPath.ShouldBe("known-bad");
+ ledger.Snapshot()!.Sample.Single().RawPath.ShouldBe("known-bad");
}
///
@@ -151,7 +179,7 @@ public sealed class SkippedTagLedgerTests
ledger.BeginRebuild(2);
ledger.Commit();
- var report = ledger.Snapshot();
+ var report = ledger.Snapshot()!;
report.HasSkips.ShouldBeFalse();
report.SkippedCount.ShouldBe(0);
report.AuthoredCount.ShouldBe(2);
@@ -167,7 +195,7 @@ public sealed class SkippedTagLedgerTests
var ledger = new SkippedTagLedger();
Should.NotThrow(() => ledger.Skip("orphan", "r"));
- ledger.Snapshot().SkippedCount.ShouldBe(0);
+ ledger.Snapshot().ShouldBeNull("a stray Skip must not conjure a report out of nothing");
}
///
@@ -197,7 +225,7 @@ public sealed class SkippedTagLedgerTests
{
while (!writer.IsCompleted && !cts.IsCancellationRequested)
{
- var r = ledger.Snapshot();
+ var r = ledger.Snapshot()!;
// Every committed snapshot is internally consistent: the sample never exceeds either the
// cap or the true count it is drawn from.
r.Sample.Count.ShouldBeLessThanOrEqualTo(SkippedTagLedger.MaxSample);
diff --git a/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FocasSkippedTagReportingTests.cs b/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FocasSkippedTagReportingTests.cs
index 35919234..75474ae9 100644
--- a/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FocasSkippedTagReportingTests.cs
+++ b/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FocasSkippedTagReportingTests.cs
@@ -42,7 +42,7 @@ public sealed class FocasSkippedTagReportingTests
await drv.InitializeAsync("{}", CancellationToken.None);
- var report = drv.GetSkippedTags();
+ var report = drv.GetSkippedTags()!;
report.AuthoredCount.ShouldBe(2);
report.SkippedCount.ShouldBe(0);
report.HasSkips.ShouldBeFalse();
@@ -75,7 +75,7 @@ public sealed class FocasSkippedTagReportingTests
drv.GetHealth().LastError.ShouldBeNull();
// …and the fact that contradicts it.
- var report = drv.GetSkippedTags();
+ var report = drv.GetSkippedTags()!;
report.AuthoredCount.ShouldBe(22);
report.SkippedCount.ShouldBe(20);
report.SkippedEverything.ShouldBeFalse("two tags do poll — this driver is partly working");
@@ -97,7 +97,7 @@ public sealed class FocasSkippedTagReportingTests
await drv.InitializeAsync("{}", CancellationToken.None);
- var report = drv.GetSkippedTags();
+ var report = drv.GetSkippedTags()!;
report.SkippedCount.ShouldBe(25);
report.Sample.Count.ShouldBe(SkippedTagLedger.MaxSample);
report.SkippedEverything.ShouldBeTrue("this driver polls nothing at all");
@@ -116,11 +116,11 @@ public sealed class FocasSkippedTagReportingTests
new FocasTagDefinition("raw/Good", Host, "MACRO:500", FocasDataType.Float64));
await drv.InitializeAsync("{}", CancellationToken.None);
- drv.GetSkippedTags().SkippedCount.ShouldBe(1);
+ drv.GetSkippedTags()!.SkippedCount.ShouldBe(1);
await drv.InitializeAsync("{}", CancellationToken.None);
- var report = drv.GetSkippedTags();
+ var report = drv.GetSkippedTags()!;
report.SkippedCount.ShouldBe(1, "the same one bad tag — not two");
report.AuthoredCount.ShouldBe(2);
}
@@ -145,7 +145,7 @@ public sealed class FocasSkippedTagReportingTests
};
var drv = new FocasDriver(good, "drv-1", new FakeFocasClientFactory());
await drv.InitializeAsync("{}", CancellationToken.None);
- drv.GetSkippedTags().Sample.Single().RawPath.ShouldBe("raw/Bad");
+ drv.GetSkippedTags()!.Sample.Single().RawPath.ShouldBe("raw/Bad");
// A second driver over an artifact whose tag names a device that is not configured: the loop skips
// the first entry, then throws on the second.
@@ -164,7 +164,9 @@ public sealed class FocasSkippedTagReportingTests
await Should.ThrowAsync(
() => drv2.InitializeAsync("{}", CancellationToken.None));
- drv2.GetSkippedTags().SkippedCount.ShouldBe(0,
- "an abandoned build must not publish; a partial report would read as 'we skip fewer tags now'");
+ // NO ANSWER, not "zero skipped": this driver's only build threw, so it never reached a verdict.
+ // A zero report here would be the same false reassurance the docker-dev rig showed for two
+ // faulted drivers, and a PARTIAL one would read as "we skip fewer tags now".
+ drv2.GetSkippedTags().ShouldBeNull();
}
}
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorSkippedTagTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorSkippedTagTests.cs
index 8491de2d..090aa352 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorSkippedTagTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorSkippedTagTests.cs
@@ -248,7 +248,7 @@ public sealed class DriverInstanceActorSkippedTagTests : RuntimeActorTestBase
}
///
- public SkippedTagReport GetSkippedTags()
+ public SkippedTagReport? GetSkippedTags()
{
if (ThrowOnGetSkippedTags) throw new InvalidOperationException("reporter is broken");
return _ledger.Snapshot();