Files
lmxopcua/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/NodeManagerHistoryReadModifiedTests.cs
T
Joseph Doherty 7c80d36eb6 fix(historian): #668 review follow-ups (explicit modified source time, paging tests, ACL test, QuestDB orphan warning, docs)
- HistoryModifiedValue gains explicit SourceTimeUtc (SqlServer + QuestDB populate it); the node manager's resume cursor uses it instead of the prior value's nullable source timestamp (MinValue for inserts).
- ACL test now uses a trail-returning data source and asserts Good + data on the allow leg.
- Node-manager tests: end-only backward open-ended paging, reverse resume cursor, null-prior cursor.
- QuestDB updater logs a Warning (tag + time range) when a sample write fails after its trail rows landed.
- docs/Historian.md: rolling-upgrade window, IDENTITY-vs-commit ordering, QuestDB cross-node ModifiedId clock ordering.
2026-10-11 09:37:17 -04:00

359 lines
18 KiB
C#

using Microsoft.Extensions.Logging.Abstractions;
using Opc.Ua;
using Opc.Ua.Server;
using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
using HistorianRead = ZB.MOM.WW.OtOpcUa.Core.Abstractions.HistoryReadResult;
using SdkHistoryReadResult = Opc.Ua.HistoryReadResult;
namespace ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests;
/// <summary>
/// Gitea #668 — OPC UA Part 11 modified-value history: HistoryReadRaw with <c>IsReadModified = true</c> dispatches
/// to <see cref="IHistorianDataSource.ReadModifiedAsync"/>, projects a <see cref="HistoryModifiedData"/> with one
/// <see cref="ModificationInfo"/> per value, and pages with continuation points keyed on
/// <c>(SourceTimeUtc, ModifiedId)</c>. Same harness as <see cref="NodeManagerHistoryReadEventsPagingTests"/>: a real
/// SDK server, a session-less in-process HistoryRead and an <see cref="InMemoryHistoryContinuationStore"/>, over a
/// fake that behaves like the SQL backends (ordered by key, half-open window, cap + exact truncation flag).
/// </summary>
public sealed class NodeManagerHistoryReadModifiedTests : IDisposable
{
private const string Tag = "WW.Mod";
private static CancellationToken Ct => TestContext.Current.CancellationToken;
private static readonly DateTime Epoch = new(2026, 1, 1, 0, 0, 0, DateTimeKind.Utc);
private readonly string _pkiRoot = Path.Combine(Path.GetTempPath(), $"otopcua-modified-{Guid.NewGuid():N}");
[Fact]
public async Task A_modified_read_dispatches_to_the_trail_and_projects_modification_infos()
{
var modifiedAt = Epoch.AddDays(2);
var trail = new List<HistoryModifiedValue>
{
Mod(1, seconds: 10, prior: null, HistoryModificationType.Insert, "alice", modifiedAt),
Mod(2, seconds: 10, prior: 1.5, HistoryModificationType.Replace, "bob", modifiedAt.AddMinutes(1)),
Mod(3, seconds: 20, prior: 7.0, HistoryModificationType.Delete, "carol", modifiedAt.AddMinutes(2)),
};
var (host, nm, node, src) = await SetupAsync(trail);
var r = Read(nm, node, Epoch, Epoch.AddHours(1), max: 100, cp: null);
r.Error.StatusCode.Code.ShouldBe(StatusCodes.Good);
r.Result.StatusCode.Code.ShouldBe(StatusCodes.Good);
r.Cp.ShouldBeNull();
src.LastTag.ShouldBe(Tag);
src.LastStart.ShouldBe(Epoch);
src.LastEnd.ShouldBe(Epoch.AddHours(1));
src.LastMax.ShouldBe(100u);
src.LastCursor.ShouldBeNull();
var data = r.Data!;
data.DataValues.Count.ShouldBe(3);
data.ModificationInfos.Count.ShouldBe(3);
data.ModificationInfos.Select(m => m.UpdateType)
.ShouldBe([HistoryUpdateType.Insert, HistoryUpdateType.Replace, HistoryUpdateType.Delete]);
data.ModificationInfos.Select(m => m.UserName).ShouldBe(["alice", "bob", "carol"]);
data.ModificationInfos.Select(m => m.ModificationTime)
.ShouldBe([modifiedAt, modifiedAt.AddMinutes(1), modifiedAt.AddMinutes(2)]);
data.DataValues[0].Value.ShouldBeNull();
data.DataValues[0].StatusCode.Code.ShouldBe(StatusCodes.BadNoData);
data.DataValues[1].Value.ShouldBe(1.5);
data.DataValues[1].SourceTimestamp.ShouldBe(Epoch.AddSeconds(10));
data.DataValues[2].Value.ShouldBe(7.0);
await host.DisposeAsync();
}
[Fact]
public async Task An_empty_trail_is_GoodNoData()
{
var (host, nm, node, _) = await SetupAsync([]);
var r = Read(nm, node, Epoch, Epoch.AddHours(1), max: 10, cp: null);
r.Error.StatusCode.Code.ShouldBe(StatusCodes.Good);
r.Result.StatusCode.Code.ShouldBe(StatusCodes.GoodNoData);
r.Data!.ModificationInfos.ShouldBeEmpty();
await host.DisposeAsync();
}
[Fact]
public async Task Modified_reads_page_exactly_once_in_order_even_through_same_time_runs()
{
// 30 modifications; ids 5..9 all share one source time, so a page boundary cuts through the run.
var trail = Enumerable.Range(1, 30)
.Select(i => Mod(i, seconds: i is >= 5 and <= 9 ? 5 : i, prior: i, HistoryModificationType.Replace, "u", Epoch))
.ToList();
var (host, nm, node, src) = await SetupAsync(trail);
var ids = Drain(nm, node, Epoch, Epoch.AddHours(1), max: 4);
ids.ShouldBe(src.Ordered(reverse: false).Select(m => m.ModifiedId));
ids.Count.ShouldBe(30);
src.Calls.ShouldBe(8); // 7 full pages + a 2-value tail; the exact HasMore flag means no trailing empty page
await host.DisposeAsync();
}
[Fact]
public async Task A_reverse_modified_read_pages_descending()
{
var trail = Enumerable.Range(1, 11).Select(i => Mod(i, seconds: i / 2, prior: i, HistoryModificationType.Delete, "u", Epoch)).ToList();
var (host, nm, node, src) = await SetupAsync(trail);
var ids = Drain(nm, node, Epoch.AddHours(1), Epoch.AddSeconds(-1), max: 3);
ids.ShouldBe(src.Ordered(reverse: true).Select(m => m.ModifiedId));
ids.First().ShouldBe(11);
await host.DisposeAsync();
}
[Fact]
public async Task An_end_only_modified_read_pages_backward_from_the_end()
{
var trail = Enumerable.Range(1, 9).Select(i => Mod(i, seconds: i, prior: i, HistoryModificationType.Update, "u", Epoch)).ToList();
var (host, nm, node, src) = await SetupAsync(trail);
// StartTime unset + EndTime set + a cap = "the newest N, walking backward".
Drain(nm, node, DateTime.MinValue, Epoch.AddHours(1), max: 4).ShouldBe(src.Ordered(reverse: true).Select(m => m.ModifiedId));
src.LastStart.ShouldBe(Epoch.AddHours(1));
src.LastEnd.ShouldBe(new DateTime(0, DateTimeKind.Utc));
await host.DisposeAsync();
}
[Fact]
public async Task A_reverse_resume_hands_the_backend_the_last_returned_source_time_and_id()
{
// Ids 3 and 4 share a source time; page 1 (reverse, cap 3) ends on id 4, then resumes mid-run.
var trail = new List<HistoryModifiedValue>
{
Mod(1, 1, 1, HistoryModificationType.Update, "u", Epoch), Mod(2, 2, 2, HistoryModificationType.Update, "u", Epoch),
Mod(3, 3, 3, HistoryModificationType.Update, "u", Epoch), Mod(4, 3, 4, HistoryModificationType.Update, "u", Epoch),
Mod(5, 5, 5, HistoryModificationType.Update, "u", Epoch), Mod(6, 6, 6, HistoryModificationType.Update, "u", Epoch),
};
var (host, nm, node, src) = await SetupAsync(trail);
var p1 = Read(nm, node, Epoch.AddHours(1), Epoch.AddSeconds(-1), max: 3, cp: null);
p1.Ids.ShouldBe([6, 5, 4]);
p1.Cp.ShouldNotBeNull();
var p2 = Read(nm, node, Epoch.AddHours(1), Epoch.AddSeconds(-1), max: 3, cp: p1.Cp);
src.LastCursor.ShouldBe(new HistoryModifiedCursor(Epoch.AddSeconds(3), 4));
p2.Ids.ShouldBe([3, 2, 1]);
await host.DisposeAsync();
}
[Fact]
public async Task The_resume_cursor_uses_the_explicit_source_time_even_when_the_prior_value_carries_none()
{
// Inserts have no prior value; their snapshot has no source timestamp. The cursor must not fall back to MinValue.
var trail = Enumerable.Range(1, 6).Select(i => new HistoryModifiedValue(
new DataValueSnapshot(null, StatusCodes.BadNoData, null, Epoch), Epoch, HistoryModificationType.Insert, "u", i,
Epoch.AddSeconds(i))).ToList();
var (host, nm, node, src) = await SetupAsync(trail);
var p1 = Read(nm, node, Epoch, Epoch.AddHours(1), max: 3, cp: null);
p1.Cp.ShouldNotBeNull();
Read(nm, node, Epoch, Epoch.AddHours(1), max: 3, cp: p1.Cp);
src.LastCursor.ShouldBe(new HistoryModifiedCursor(Epoch.AddSeconds(3), 3));
await host.DisposeAsync();
}
[Fact]
public async Task An_open_ended_forward_modified_read_pages_to_the_end()
{
var trail = Enumerable.Range(1, 9).Select(i => Mod(i, seconds: i, prior: i, HistoryModificationType.Update, "u", Epoch)).ToList();
var (host, nm, node, src) = await SetupAsync(trail);
Drain(nm, node, Epoch, DateTime.MinValue, max: 4).ShouldBe(src.Ordered(reverse: false).Select(m => m.ModifiedId));
src.LastEnd.ShouldBe(new DateTime(DateTime.MaxValue.Ticks, DateTimeKind.Utc));
await host.DisposeAsync();
}
[Fact]
public async Task An_unbounded_modified_read_never_pages()
{
var trail = Enumerable.Range(1, 50).Select(i => Mod(i, seconds: i, prior: i, HistoryModificationType.Update, "u", Epoch)).ToList();
var (host, nm, node, _) = await SetupAsync(trail);
var r = Read(nm, node, Epoch, Epoch.AddHours(1), max: 0, cp: null);
r.Data!.DataValues.Count.ShouldBe(50);
r.Cp.ShouldBeNull();
await host.DisposeAsync();
}
[Fact]
public async Task Cursors_are_bound_to_the_read_kind_and_the_node()
{
var trail = Enumerable.Range(1, 10).Select(i => Mod(i, seconds: i, prior: i, HistoryModificationType.Update, "u", Epoch)).ToList();
var (host, nm, node, _) = await SetupAsync(trail);
// A RAW cursor for the same tag is not a modified cursor.
var raw = nm.HistoryContinuationStore.Save(null, new HistoryContinuationState(Tag, Epoch, Epoch.AddDays(1), 0, 4));
Read(nm, node, Epoch, Epoch.AddHours(1), max: 4, cp: raw).Error.StatusCode.Code
.ShouldBe(StatusCodes.BadContinuationPointInvalid);
// A MODIFIED cursor presented to a raw read is invalid too.
var p1 = Read(nm, node, Epoch, Epoch.AddHours(1), max: 4, cp: null);
p1.Cp.ShouldNotBeNull();
Read(nm, node, Epoch, Epoch.AddHours(1), max: 4, cp: p1.Cp, modified: false).Error.StatusCode.Code
.ShouldBe(StatusCodes.BadContinuationPointInvalid);
// A modified cursor issued for one node is invalid on another node's tag.
var p2 = Read(nm, node, Epoch, Epoch.AddHours(1), max: 4, cp: null);
nm.EnsureVariable("eq-1/other", null, "Other", "Double", false, historianTagname: "WW.Other", realm: AddressSpaceRealm.Uns);
var other = nm.TryGetVariable("eq-1/other")!.NodeId;
Read(nm, other, Epoch, Epoch.AddHours(1), max: 4, cp: p2.Cp).Error.StatusCode.Code
.ShouldBe(StatusCodes.BadContinuationPointInvalid);
await host.DisposeAsync();
}
[Fact]
public async Task A_backend_failure_is_isolated_to_its_node()
{
var (host, nm, node, src) = await SetupAsync([Mod(1, 1, 1, HistoryModificationType.Update, "u", Epoch)]);
src.Throw = new InvalidOperationException("boom");
var r = Read(nm, node, Epoch, Epoch.AddHours(1), max: 4, cp: null);
r.Error.StatusCode.Code.ShouldBe(StatusCodes.BadHistoryOperationUnsupported);
await host.DisposeAsync();
}
// --- helpers ---------------------------------------------------------------------------------
private static HistoryModifiedValue Mod(
long id, int seconds, double? prior, HistoryModificationType type, string user, DateTime modifiedAt)
{
var t = Epoch.AddSeconds(seconds);
var value = prior is null
? new DataValueSnapshot(null, StatusCodes.BadNoData, t, modifiedAt)
: new DataValueSnapshot(prior.Value, StatusCodes.Good, t, t);
return new HistoryModifiedValue(value, modifiedAt, type, user, id, t);
}
private static List<long> Drain(OtOpcUaNodeManager nm, NodeId node, DateTime start, DateTime end, uint max)
{
var ids = new List<long>();
byte[]? cp = null;
var pages = 0;
do
{
var r = Read(nm, node, start, end, max, cp);
r.Error.StatusCode.Code.ShouldBe(StatusCodes.Good, r.Error.ToString());
ids.AddRange(r.Ids);
cp = r.Cp;
(++pages).ShouldBeLessThan(60, "paging must terminate");
}
while (cp is not null);
return ids;
}
private static (ServiceResult Error, SdkHistoryReadResult Result, HistoryModifiedData? Data, byte[]? Cp, List<long> Ids) Read(
OtOpcUaNodeManager nm, NodeId node, DateTime start, DateTime end, uint max, byte[]? cp, bool modified = true)
{
var context = new OperationContext(new RequestHeader(), secureChannelContext: null, RequestType.HistoryRead, identity: null);
var results = new List<SdkHistoryReadResult> { null! };
var errors = new List<ServiceResult> { null! };
nm.HistoryRead(context,
new ReadRawModifiedDetails { StartTime = start, EndTime = end, NumValuesPerNode = max, IsReadModified = modified },
TimestampsToReturn.Both, false,
new List<HistoryReadValueId> { new() { NodeId = node, ContinuationPoint = cp } }, results, errors);
HistoryModifiedData? data = null;
var ids = new List<long>();
if (results[0]?.HistoryData is { } ho && !ExtensionObject.IsNull(ho)
&& ExtensionObject.ToEncodeable(ho) is HistoryModifiedData hm)
{
data = hm;
// The fake stores each modification's id in its (unique) server timestamp offset — see SqlLikeTrail.
ids.AddRange(hm.DataValues.Select(v => SqlLikeTrail.IdOf(v)));
}
return (errors[0], results[0], data, results[0]?.ContinuationPoint, ids);
}
private async Task<(OpcUaApplicationHost Host, OtOpcUaNodeManager Nm, NodeId Node, SqlLikeTrail Src)> SetupAsync(
List<HistoryModifiedValue> trail)
{
var started = await OpcUaHostStart.StartAsync(
port => new OpcUaApplicationHost(
new OpcUaApplicationHostOptions
{
ApplicationName = "OtOpcUa.ModifiedHistoryTest",
ApplicationUri = $"urn:OtOpcUa.ModifiedHistoryTest:{Guid.NewGuid():N}",
OpcUaPort = port,
PublicHostname = "localhost",
PkiStoreRoot = _pkiRoot,
},
NullLogger<OpcUaApplicationHost>.Instance),
() => new OtOpcUaSdkServer(), Ct);
var nm = started.Server.NodeManager!;
nm.HistoryContinuationStore = new InMemoryHistoryContinuationStore();
var src = new SqlLikeTrail(trail);
nm.HistorianDataSource = src;
nm.EnsureVariable("eq-1/mod", null, "Mod", "Double", false, historianTagname: Tag, realm: AddressSpaceRealm.Uns);
return (started.Host, nm, nm.TryGetVariable("eq-1/mod")!.NodeId, src);
}
/// <summary>
/// Behaves like the SqlServer/QuestDB modified reads: ordered by <c>(SourceTimeUtc, ModifiedId)</c> (descending
/// when reversed), half-open window, exclusive cursor, cap + exact <see cref="HistoryModifiedReadResult.HasMore"/>.
/// To let the test recover each projected value's id, the server timestamp handed out is
/// <c>Epoch + id ticks</c> (an otherwise unused field in these tests).
/// </summary>
private sealed class SqlLikeTrail(List<HistoryModifiedValue> trail) : IHistorianDataSource
{
public string? LastTag { get; private set; }
public DateTime LastStart { get; private set; }
public DateTime LastEnd { get; private set; }
public uint LastMax { get; private set; }
public HistoryModifiedCursor? LastCursor { get; private set; }
public int Calls { get; private set; }
public Exception? Throw { get; set; }
public static long IdOf(DataValue v) => v.ServerTimestamp.Ticks - Epoch.Ticks;
public IEnumerable<HistoryModifiedValue> Ordered(bool reverse) => reverse
? trail.OrderByDescending(m => m.SourceTimeUtc).ThenByDescending(m => m.ModifiedId)
: trail.OrderBy(m => m.SourceTimeUtc).ThenBy(m => m.ModifiedId);
public async Task<HistoryModifiedReadResult> ReadModifiedAsync(
string fullReference, DateTime startUtc, DateTime endUtc, uint maxValues, HistoryModifiedCursor? resumeAfter,
CancellationToken cancellationToken)
{
await Task.Delay(1, cancellationToken).ConfigureAwait(false);
if (Throw is not null) throw Throw;
Calls++;
(LastTag, LastStart, LastEnd, LastMax, LastCursor) = (fullReference, startUtc, endUtc, maxValues, resumeAfter);
var reverse = startUtc > endUtc;
var (lo, hi) = reverse ? (endUtc, startUtc) : (startUtc, endUtc);
var rows = Ordered(reverse).Where(m =>
{
var t = m.SourceTimeUtc;
var inWindow = startUtc == endUtc ? t == lo : reverse ? t > lo && t <= hi : t >= lo && t < hi;
if (!inWindow) return false;
if (resumeAfter is null) return true;
var c = t.CompareTo(resumeAfter.SourceTimeUtc);
return reverse ? c < 0 || (c == 0 && m.ModifiedId < resumeAfter.ModifiedId)
: c > 0 || (c == 0 && m.ModifiedId > resumeAfter.ModifiedId);
}).Select(m => m with { Value = m.Value with { ServerTimestampUtc = Epoch.AddTicks(m.ModifiedId) } }).ToList();
var take = maxValues == 0 ? rows.Count : (int)Math.Min(maxValues, (uint)rows.Count);
return new HistoryModifiedReadResult(rows.Take(take).ToList(), rows.Count > take);
}
public Task<HistorianRead> ReadRawAsync(string r, DateTime s, DateTime e, uint m, CancellationToken ct) =>
NullHistorianDataSource.Instance.ReadRawAsync(r, s, e, m, ct);
public Task<HistorianRead> ReadProcessedAsync(
string r, DateTime s, DateTime e, TimeSpan i, HistoryAggregateType a, CancellationToken ct) =>
NullHistorianDataSource.Instance.ReadProcessedAsync(r, s, e, i, a, ct);
public Task<HistorianRead> ReadAtTimeAsync(string r, IReadOnlyList<DateTime> t, CancellationToken ct) =>
NullHistorianDataSource.Instance.ReadAtTimeAsync(r, t, ct);
public Task<HistoricalEventsResult> ReadEventsAsync(string? n, DateTime s, DateTime e, int m, CancellationToken ct) =>
NullHistorianDataSource.Instance.ReadEventsAsync(n, s, e, m, ct);
public HistorianHealthSnapshot GetHealthSnapshot() => NullHistorianDataSource.Instance.GetHealthSnapshot();
public void Dispose() { }
}
public void Dispose()
{
if (Directory.Exists(_pkiRoot))
{
try { Directory.Delete(_pkiRoot, recursive: true); } catch { /* best effort */ }
}
}
}