Files

693 lines
31 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.OpcUaServer.Security;
namespace ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests;
/// <summary>
/// T18 — inbound OPC UA Part 9 alarm method handlers. Boots a real <see cref="OtOpcUaSdkServer"/>,
/// materialises a condition, sets a capturing <see cref="OtOpcUaNodeManager.AlarmCommandRouter"/>,
/// then drives the condition's public SDK handler delegates (<c>OnAcknowledge</c>/<c>OnShelve</c>)
/// directly. Verifies (a) the <c>AlarmAck</c> role gate fails closed and (b) the routed
/// <see cref="AlarmCommand"/> is mapped correctly.
/// </summary>
public sealed class AlarmCommandRouterTests : IDisposable
{
private static CancellationToken Ct => TestContext.Current.CancellationToken;
private readonly string _pkiRoot = Path.Combine(
Path.GetTempPath(),
$"otopcua-alarmcmd-{Guid.NewGuid():N}");
/// <summary>With the <c>AlarmAck</c> role present, OnAcknowledge returns Good and routes exactly one
/// correctly-mapped AlarmCommand (AlarmId = ScriptedAlarmId, Operation, User, Comment).</summary>
[Fact]
public async Task OnAcknowledge_with_AlarmAck_returns_good_and_routes_mapped_command()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-1", parentNodeId: null, displayName: "Equipment 1");
nm.MaterialiseAlarmCondition("alm-1", "eq-1", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-1");
condition.ShouldNotBeNull();
condition!.OnAcknowledge.ShouldNotBeNull();
var ctx = SessionContext(server, "alice", "ReadOnly", OpcUaDataPlaneRoles.AlarmAck);
var result = condition.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("ack note"));
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
var cmd = captured[0];
cmd.AlarmId.ShouldBe("alm-1"); // == ScriptedAlarmId (condition NodeId identifier)
cmd.Operation.ShouldBe("Acknowledge");
cmd.User.ShouldBe("alice");
cmd.Comment.ShouldBe("ack note");
cmd.UnshelveAtUtc.ShouldBeNull();
await host.DisposeAsync();
}
/// <summary>Without the <c>AlarmAck</c> role, OnAcknowledge is vetoed (BadUserAccessDenied) and the
/// router is NOT invoked — the gate fails closed and never mutates state.</summary>
[Fact]
public async Task OnAcknowledge_without_AlarmAck_returns_denied_and_does_not_route()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-2", parentNodeId: null, displayName: "Equipment 2");
nm.MaterialiseAlarmCondition("alm-2", "eq-2", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-2");
condition.ShouldNotBeNull();
var ctx = SessionContext(server, "bob", "ReadOnly"); // no AlarmAck
var result = condition!.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("nope"));
result.StatusCode.Code.ShouldBe(StatusCodes.BadUserAccessDenied);
captured.ShouldBeEmpty();
await host.DisposeAsync();
}
/// <summary>A null identity (anonymous / no role-carrying identity on the context) is denied and does
/// not route — the gate fails closed on a missing principal.</summary>
[Fact]
public async Task OnAcknowledge_with_null_identity_returns_denied_and_does_not_route()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-3", parentNodeId: null, displayName: "Equipment 3");
nm.MaterialiseAlarmCondition("alm-3", "eq-3", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-3");
condition.ShouldNotBeNull();
// ServerSystemContext with no UserIdentity set ⇒ (context as ISessionOperationContext).UserIdentity is null.
var ctx = new ServerSystemContext(server.CurrentInstance);
var result = condition!.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("x"));
result.StatusCode.Code.ShouldBe(StatusCodes.BadUserAccessDenied);
captured.ShouldBeEmpty();
await host.DisposeAsync();
}
/// <summary>OnConfirm with AlarmAck maps to the Confirm operation.</summary>
[Fact]
public async Task OnConfirm_with_AlarmAck_routes_confirm_operation()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-c", parentNodeId: null, displayName: "Equipment C");
nm.MaterialiseAlarmCondition("alm-c", "eq-c", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-c");
condition.ShouldNotBeNull();
condition!.OnConfirm.ShouldNotBeNull();
var ctx = SessionContext(server, "carol", OpcUaDataPlaneRoles.AlarmAck);
var result = condition.OnConfirm!(ctx, condition, EventIdBytes(), comment: null);
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
captured[0].Operation.ShouldBe("Confirm");
captured[0].Comment.ShouldBeNull(); // null LocalizedText ⇒ null Comment
captured[0].User.ShouldBe("carol");
await host.DisposeAsync();
}
/// <summary>OnAddComment with AlarmAck maps to the AddComment operation, carrying the comment text.</summary>
[Fact]
public async Task OnAddComment_with_AlarmAck_routes_add_comment_operation()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-ac", parentNodeId: null, displayName: "Equipment AC");
nm.MaterialiseAlarmCondition("alm-ac", "eq-ac", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-ac");
condition.ShouldNotBeNull();
condition!.OnAddComment.ShouldNotBeNull();
var ctx = SessionContext(server, "dave", OpcUaDataPlaneRoles.AlarmAck);
var result = condition.OnAddComment!(ctx, condition, EventIdBytes(), new LocalizedText("look here"));
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
captured[0].Operation.ShouldBe("AddComment");
captured[0].Comment.ShouldBe("look here");
await host.DisposeAsync();
}
/// <summary>OnShelve with oneShot=true maps to OneShotShelve with no UnshelveAtUtc.</summary>
[Fact]
public async Task OnShelve_oneshot_routes_one_shot_shelve_with_no_expiry()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-s1", parentNodeId: null, displayName: "Equipment S1");
nm.MaterialiseAlarmCondition("alm-s1", "eq-s1", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-s1");
condition.ShouldNotBeNull();
condition!.OnShelve.ShouldNotBeNull();
var ctx = SessionContext(server, "erin", OpcUaDataPlaneRoles.AlarmAck);
// SDK OneShotShelve invokes OnShelve(ctx, alarm, shelving:true, oneShot:true, 0.0).
var result = condition.OnShelve!(ctx, condition, shelving: true, oneShot: true, shelvingTime: 0.0);
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
captured[0].Operation.ShouldBe("OneShotShelve");
captured[0].UnshelveAtUtc.ShouldBeNull();
await host.DisposeAsync();
}
/// <summary>OnShelve with oneShot=false and shelving=true maps to TimedShelve with UnshelveAtUtc
/// derived from the millisecond Duration (UtcNow + ms).</summary>
[Fact]
public async Task OnShelve_timed_routes_timed_shelve_with_ms_derived_expiry()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-s2", parentNodeId: null, displayName: "Equipment S2");
nm.MaterialiseAlarmCondition("alm-s2", "eq-s2", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-s2");
condition.ShouldNotBeNull();
var ctx = SessionContext(server, "frank", OpcUaDataPlaneRoles.AlarmAck);
const double shelvingTimeMs = 60_000.0; // OPC UA Duration = milliseconds
var before = DateTime.UtcNow;
// SDK TimedShelve invokes OnShelve(ctx, alarm, shelving:true, oneShot:false, shelvingTime).
var result = condition!.OnShelve!(ctx, condition, shelving: true, oneShot: false, shelvingTime: shelvingTimeMs);
var after = DateTime.UtcNow;
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
captured[0].Operation.ShouldBe("TimedShelve");
captured[0].UnshelveAtUtc.ShouldNotBeNull();
// UtcNow + 60s, bracketed by the before/after capture instants.
captured[0].UnshelveAtUtc!.Value.ShouldBeGreaterThanOrEqualTo(before.AddMilliseconds(shelvingTimeMs));
captured[0].UnshelveAtUtc!.Value.ShouldBeLessThanOrEqualTo(after.AddMilliseconds(shelvingTimeMs));
await host.DisposeAsync();
}
/// <summary>OnShelve with shelving=false maps to Unshelve with no UnshelveAtUtc.</summary>
[Fact]
public async Task OnShelve_unshelve_routes_unshelve_operation()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-s3", parentNodeId: null, displayName: "Equipment S3");
nm.MaterialiseAlarmCondition("alm-s3", "eq-s3", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-s3");
condition.ShouldNotBeNull();
var ctx = SessionContext(server, "grace", OpcUaDataPlaneRoles.AlarmAck);
// SDK Unshelve invokes OnShelve(ctx, alarm, shelving:false, oneShot:false, 0.0).
var result = condition!.OnShelve!(ctx, condition, shelving: false, oneShot: false, shelvingTime: 0.0);
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
captured[0].Operation.ShouldBe("Unshelve");
captured[0].UnshelveAtUtc.ShouldBeNull();
await host.DisposeAsync();
}
/// <summary>OnShelve without AlarmAck is vetoed and does not route.</summary>
[Fact]
public async Task OnShelve_without_AlarmAck_returns_denied_and_does_not_route()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-s4", parentNodeId: null, displayName: "Equipment S4");
nm.MaterialiseAlarmCondition("alm-s4", "eq-s4", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-s4");
condition.ShouldNotBeNull();
var ctx = SessionContext(server, "heidi", "ReadOnly"); // no AlarmAck
var result = condition!.OnShelve!(ctx, condition, shelving: true, oneShot: true, shelvingTime: 0.0);
result.StatusCode.Code.ShouldBe(StatusCodes.BadUserAccessDenied);
captured.ShouldBeEmpty();
await host.DisposeAsync();
}
/// <summary>OnTimedUnshelve fires with the SDK's system context (no session, no user identity) —
/// the real SDK path when a TimedShelve duration expires. The gate must NOT veto: the result must be
/// Good, the router must be invoked exactly once with Operation == "Unshelve" and User == empty,
/// and no UnshelveAtUtc is carried.</summary>
[Fact]
public async Task OnTimedUnshelve_with_system_context_returns_good_and_routes_unshelve()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-tu", parentNodeId: null, displayName: "Equipment TU");
nm.MaterialiseAlarmCondition("alm-tu", "eq-tu", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-tu");
condition.ShouldNotBeNull();
condition!.OnTimedUnshelve.ShouldNotBeNull();
// Reproduce the real SDK path: system context has no session and no UserIdentity — exactly what
// the SDK's internal timer fires the callback with when a TimedShelve duration expires.
var ctx = new ServerSystemContext(server.CurrentInstance); // no UserIdentity set
var result = condition.OnTimedUnshelve!(ctx, condition);
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
var cmd = captured[0];
cmd.AlarmId.ShouldBe("alm-tu"); // == ScriptedAlarmId / condition NodeId identifier
cmd.Operation.ShouldBe("Unshelve");
cmd.User.ShouldBe(string.Empty); // no client principal — system-initiated
cmd.UnshelveAtUtc.ShouldBeNull();
await host.DisposeAsync();
}
/// <summary>H4 — OnEnableDisable with <c>enabling:false</c> and the <c>AlarmAck</c> role on a SCRIPTED
/// condition returns Good and routes exactly one <see cref="AlarmCommand"/> with Operation == "Disable"
/// and User == the caller's DisplayName.</summary>
[Fact]
public async Task OnEnableDisable_disabling_with_AlarmAck_routes_Disable()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-ed1", parentNodeId: null, displayName: "Equipment ED1");
nm.MaterialiseAlarmCondition("alm-ed1", "eq-ed1", "HighTemp", "OffNormalAlarm", severity: 700, isNative: false);
var condition = nm.TryGetAlarmCondition("alm-ed1");
condition.ShouldNotBeNull();
condition!.OnEnableDisable.ShouldNotBeNull();
var ctx = SessionContext(server, "ivan", OpcUaDataPlaneRoles.AlarmAck);
// SDK Disable invokes OnEnableDisable(ctx, condition, enabling:false).
var result = condition.OnEnableDisable!(ctx, condition, enabling: false);
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
captured[0].AlarmId.ShouldBe("alm-ed1");
captured[0].Operation.ShouldBe("Disable");
captured[0].User.ShouldBe("ivan");
captured[0].UnshelveAtUtc.ShouldBeNull();
await host.DisposeAsync();
}
/// <summary>H4 — OnEnableDisable with <c>enabling:true</c> maps to the Enable operation.</summary>
[Fact]
public async Task OnEnableDisable_enabling_routes_Enable()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-ed2", parentNodeId: null, displayName: "Equipment ED2");
nm.MaterialiseAlarmCondition("alm-ed2", "eq-ed2", "HighTemp", "OffNormalAlarm", severity: 700, isNative: false);
var condition = nm.TryGetAlarmCondition("alm-ed2");
condition.ShouldNotBeNull();
condition!.OnEnableDisable.ShouldNotBeNull();
var ctx = SessionContext(server, "jane", OpcUaDataPlaneRoles.AlarmAck);
// SDK Enable invokes OnEnableDisable(ctx, condition, enabling:true).
var result = condition.OnEnableDisable!(ctx, condition, enabling: true);
result.ShouldBe(ServiceResult.Good);
captured.Count.ShouldBe(1);
captured[0].Operation.ShouldBe("Enable");
captured[0].User.ShouldBe("jane");
await host.DisposeAsync();
}
/// <summary>H4 — OnEnableDisable from an anonymous / role-less identity is vetoed
/// (BadUserAccessDenied) and the router is NOT invoked — the gate fails closed.</summary>
[Fact]
public async Task OnEnableDisable_anonymous_is_denied()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-ed3", parentNodeId: null, displayName: "Equipment ED3");
nm.MaterialiseAlarmCondition("alm-ed3", "eq-ed3", "HighTemp", "OffNormalAlarm", severity: 700, isNative: false);
var condition = nm.TryGetAlarmCondition("alm-ed3");
condition.ShouldNotBeNull();
// ServerSystemContext with no UserIdentity ⇒ anonymous / no role-carrying identity.
var ctx = new ServerSystemContext(server.CurrentInstance);
var result = condition!.OnEnableDisable!(ctx, condition, enabling: false);
result.StatusCode.Code.ShouldBe(StatusCodes.BadUserAccessDenied);
captured.ShouldBeEmpty();
await host.DisposeAsync();
}
/// <summary>H4 — OnEnableDisable on a NATIVE (driver-fed) condition returns BadNotSupported and does
/// NOT route — native conditions have no engine enable/disable surface (Phase 3 decision #2). The gate
/// short-circuits on the native flag before the role check, so even an AlarmAck caller gets BadNotSupported.</summary>
[Fact]
public async Task OnEnableDisable_on_native_condition_is_BadNotSupported()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var captured = new List<AlarmCommand>();
nm.AlarmCommandRouter = captured.Add;
nm.EnsureFolder("eq-ed4", parentNodeId: null, displayName: "Equipment ED4");
nm.MaterialiseAlarmCondition("alm-ed4", "eq-ed4", "HighTemp", "OffNormalAlarm", severity: 700, isNative: true);
var condition = nm.TryGetAlarmCondition("alm-ed4");
condition.ShouldNotBeNull();
condition!.OnEnableDisable.ShouldNotBeNull();
var ctx = SessionContext(server, "kara", OpcUaDataPlaneRoles.AlarmAck);
var result = condition.OnEnableDisable!(ctx, condition, enabling: false);
result.StatusCode.Code.ShouldBe(StatusCodes.BadNotSupported);
captured.ShouldBeEmpty();
await host.DisposeAsync();
}
/// <summary>H6c — a NATIVE (driver-fed) condition's Acknowledge routes to <see
/// cref="OtOpcUaNodeManager.NativeAlarmAckRouter"/> (the driver-bound seam), NOT the scripted
/// <see cref="OtOpcUaNodeManager.AlarmCommandRouter"/>. With the AlarmAck role present, OnAcknowledge
/// returns Good, the captured <see cref="NativeAlarmAck"/> carries the condition NodeId, the operator
/// DisplayName, and the comment text, and the scripted router is NOT invoked.</summary>
[Fact]
public async Task Native_OnAcknowledge_routes_to_NativeAlarmAckRouter_not_scripted()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var scripted = new List<AlarmCommand>();
var native = new List<NativeAlarmAck>();
nm.AlarmCommandRouter = scripted.Add;
nm.NativeAlarmAckRouter = native.Add;
nm.EnsureFolder("eq-nak1", parentNodeId: null, displayName: "Equipment NAK1");
nm.MaterialiseAlarmCondition("alm-nak1", "eq-nak1", "HighTemp", "OffNormalAlarm", severity: 700, isNative: true);
var condition = nm.TryGetAlarmCondition("alm-nak1");
condition.ShouldNotBeNull();
condition!.OnAcknowledge.ShouldNotBeNull();
var ctx = SessionContext(server, "nora", OpcUaDataPlaneRoles.AlarmAck);
var result = condition.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("native ack"));
result.ShouldBe(ServiceResult.Good);
native.Count.ShouldBe(1);
native[0].ConditionNodeId.ShouldBe("alm-nak1"); // folder-scoped condition NodeId identifier
native[0].OperatorUser.ShouldBe("nora");
native[0].Comment.ShouldBe("native ack");
scripted.ShouldBeEmpty(); // scripted engine NOT involved
await host.DisposeAsync();
}
/// <summary>H6c — a SCRIPTED condition's Acknowledge still routes through the scripted
/// <see cref="OtOpcUaNodeManager.AlarmCommandRouter"/> (Operation == "Acknowledge"); the native
/// router is NOT invoked.</summary>
[Fact]
public async Task Scripted_OnAcknowledge_still_uses_AlarmCommandRouter()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var scripted = new List<AlarmCommand>();
var native = new List<NativeAlarmAck>();
nm.AlarmCommandRouter = scripted.Add;
nm.NativeAlarmAckRouter = native.Add;
nm.EnsureFolder("eq-nak2", parentNodeId: null, displayName: "Equipment NAK2");
nm.MaterialiseAlarmCondition("alm-nak2", "eq-nak2", "HighTemp", "OffNormalAlarm", severity: 700, isNative: false);
var condition = nm.TryGetAlarmCondition("alm-nak2");
condition.ShouldNotBeNull();
condition!.OnAcknowledge.ShouldNotBeNull();
var ctx = SessionContext(server, "owen", OpcUaDataPlaneRoles.AlarmAck);
var result = condition.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("scripted ack"));
result.ShouldBe(ServiceResult.Good);
scripted.Count.ShouldBe(1);
scripted[0].AlarmId.ShouldBe("alm-nak2");
scripted[0].Operation.ShouldBe("Acknowledge");
scripted[0].User.ShouldBe("owen");
scripted[0].Comment.ShouldBe("scripted ack");
native.ShouldBeEmpty(); // native seam NOT involved
await host.DisposeAsync();
}
/// <summary>H6c — a NATIVE condition's Acknowledge from a non-null identity that lacks the
/// <c>AlarmAck</c> role is vetoed (BadUserAccessDenied) and NEITHER router is invoked — the gate
/// fails closed before any route, exactly as for scripted conditions.</summary>
[Fact]
public async Task Native_OnAcknowledge_without_AlarmAck_returns_denied_and_routes_nothing()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var scripted = new List<AlarmCommand>();
var native = new List<NativeAlarmAck>();
nm.AlarmCommandRouter = scripted.Add;
nm.NativeAlarmAckRouter = native.Add;
nm.EnsureFolder("eq-nak4", parentNodeId: null, displayName: "Equipment NAK4");
nm.MaterialiseAlarmCondition("alm-nak4", "eq-nak4", "HighTemp", "OffNormalAlarm", severity: 700, isNative: true);
var condition = nm.TryGetAlarmCondition("alm-nak4");
condition.ShouldNotBeNull();
var ctx = SessionContext(server, "pete", "ReadOnly"); // non-null identity, but no AlarmAck
var result = condition!.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("nope"));
result.StatusCode.Code.ShouldBe(StatusCodes.BadUserAccessDenied);
native.ShouldBeEmpty();
scripted.ShouldBeEmpty();
await host.DisposeAsync();
}
/// <summary>H6c — a NATIVE condition's Acknowledge from an anonymous / role-less identity is vetoed
/// (BadUserAccessDenied) and NEITHER router is invoked — the gate fails closed before any route.</summary>
[Fact]
public async Task Native_OnAcknowledge_anonymous_is_denied()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
var scripted = new List<AlarmCommand>();
var native = new List<NativeAlarmAck>();
nm.AlarmCommandRouter = scripted.Add;
nm.NativeAlarmAckRouter = native.Add;
nm.EnsureFolder("eq-nak3", parentNodeId: null, displayName: "Equipment NAK3");
nm.MaterialiseAlarmCondition("alm-nak3", "eq-nak3", "HighTemp", "OffNormalAlarm", severity: 700, isNative: true);
var condition = nm.TryGetAlarmCondition("alm-nak3");
condition.ShouldNotBeNull();
// ServerSystemContext with no UserIdentity ⇒ anonymous / no role-carrying identity.
var ctx = new ServerSystemContext(server.CurrentInstance);
var result = condition!.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("x"));
result.StatusCode.Code.ShouldBe(StatusCodes.BadUserAccessDenied);
native.ShouldBeEmpty();
scripted.ShouldBeEmpty();
await host.DisposeAsync();
}
/// <summary>A null router is a safe no-op: handler still gates + returns Good, just routes nowhere.</summary>
[Fact]
public async Task OnAcknowledge_with_null_router_is_safe_noop_and_returns_good()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
// No router set (default null).
nm.EnsureFolder("eq-nr", parentNodeId: null, displayName: "Equipment NR");
nm.MaterialiseAlarmCondition("alm-nr", "eq-nr", "HighTemp", "OffNormalAlarm", severity: 700);
var condition = nm.TryGetAlarmCondition("alm-nr");
condition.ShouldNotBeNull();
var ctx = SessionContext(server, "judy", OpcUaDataPlaneRoles.AlarmAck);
var result = condition!.OnAcknowledge!(ctx, condition, EventIdBytes(), new LocalizedText("ok"));
result.ShouldBe(ServiceResult.Good);
await host.DisposeAsync();
}
/// <summary>H6a — a condition materialised with <c>isNative:true</c> is tracked so later inbound-ack
/// routing can dispatch its Acknowledge to the driver rather than the scripted engine.</summary>
[Fact]
public async Task Native_materialise_is_tracked_as_native()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
nm.EnsureFolder("eq", parentNodeId: null, displayName: "Equipment");
nm.MaterialiseAlarmCondition("a1", "eq", "d", "OffNormalAlarm", 700, isNative: true);
nm.IsNativeAlarmNode("a1").ShouldBeTrue();
await host.DisposeAsync();
}
/// <summary>H6a — a scripted condition (the default, <c>isNative:false</c>) is NOT tracked as native.</summary>
[Fact]
public async Task Scripted_materialise_is_not_native()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
nm.EnsureFolder("eq", parentNodeId: null, displayName: "Equipment");
nm.MaterialiseAlarmCondition("a2", "eq", "d", "OffNormalAlarm", 700, isNative: false);
nm.IsNativeAlarmNode("a2").ShouldBeFalse();
await host.DisposeAsync();
}
/// <summary>H6a lifecycle — the native flag is NOT sticky across a rebuild + kind flip. Materialise an
/// id as native (flag true), <see cref="OtOpcUaNodeManager.RebuildAddressSpace"/> (which clears the
/// folder + condition + native-flag sets), re-ensure the equipment folder, then re-materialise the
/// SAME id as scripted (<c>isNative:false</c>). The flag must read false — the rebuild dropped it and
/// the scripted re-materialise did NOT re-add it. Guards against a stale-native leak that would route a
/// now-scripted alarm's inbound ack to the driver.</summary>
[Fact]
public async Task Native_flag_clears_on_rebuild_then_kind_flip()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
nm.EnsureFolder("eq", parentNodeId: null, displayName: "Equipment");
nm.MaterialiseAlarmCondition("a1", "eq", "d", "OffNormalAlarm", 700, isNative: true);
nm.IsNativeAlarmNode("a1").ShouldBeTrue();
// RebuildAddressSpace clears the folder set too, so the equipment folder must be re-ensured
// before the same id can be re-materialised (ResolveParentFolder needs the parent back).
nm.RebuildAddressSpace();
nm.EnsureFolder("eq", parentNodeId: null, displayName: "Equipment");
nm.MaterialiseAlarmCondition("a1", "eq", "d", "OffNormalAlarm", 700, isNative: false);
nm.IsNativeAlarmNode("a1").ShouldBeFalse();
await host.DisposeAsync();
}
/// <summary>H6a lifecycle (converse) — a scripted condition can flip TO native across a rebuild.
/// Materialise an id as scripted (flag false), rebuild, re-ensure the folder, re-materialise the SAME
/// id as native (<c>isNative:true</c>). The flag must read true — the native re-materialise re-adds it
/// cleanly after the rebuild cleared the slate.</summary>
[Fact]
public async Task Scripted_flag_can_flip_to_native_across_rebuild()
{
var (host, server) = await BootAsync();
var nm = server.NodeManager!;
nm.EnsureFolder("eq", parentNodeId: null, displayName: "Equipment");
nm.MaterialiseAlarmCondition("a1", "eq", "d", "OffNormalAlarm", 700, isNative: false);
nm.IsNativeAlarmNode("a1").ShouldBeFalse();
nm.RebuildAddressSpace();
nm.EnsureFolder("eq", parentNodeId: null, displayName: "Equipment");
nm.MaterialiseAlarmCondition("a1", "eq", "d", "OffNormalAlarm", 700, isNative: true);
nm.IsNativeAlarmNode("a1").ShouldBeTrue();
await host.DisposeAsync();
}
/// <summary>Builds a <see cref="ServerSystemContext"/> (an <see cref="ISessionOperationContext"/>)
/// carrying a <see cref="RoleCarryingUserIdentity"/> with the given name + roles — the exact seam the
/// gate reads via <c>(context as ISessionOperationContext)?.UserIdentity as RoleCarryingUserIdentity</c>.</summary>
private static ServerSystemContext SessionContext(OtOpcUaSdkServer server, string user, params string[] roles)
{
var identity = new RoleCarryingUserIdentity(
new UserNameIdentityToken { UserName = user },
roles);
return new ServerSystemContext(server.CurrentInstance) { UserIdentity = identity };
}
private static byte[] EventIdBytes() => Guid.NewGuid().ToByteArray();
private async Task<(OpcUaApplicationHost Host, OtOpcUaSdkServer Server)> BootAsync()
{
var host = new OpcUaApplicationHost(
new OpcUaApplicationHostOptions
{
ApplicationName = "OtOpcUa.AlarmCmdTest",
ApplicationUri = $"urn:OtOpcUa.AlarmCmdTest:{Guid.NewGuid():N}",
OpcUaPort = AllocateFreePort(),
PublicHostname = "localhost",
PkiStoreRoot = _pkiRoot,
},
NullLogger<OpcUaApplicationHost>.Instance);
var server = new OtOpcUaSdkServer();
await host.StartAsync(server, Ct);
return (host, server);
}
private static int AllocateFreePort()
{
using var listener = new System.Net.Sockets.TcpListener(System.Net.IPAddress.Loopback, 0);
listener.Start();
var port = ((System.Net.IPEndPoint)listener.LocalEndpoint).Port;
listener.Stop();
return port;
}
/// <summary>Cleans up the PKI root directory.</summary>
public void Dispose()
{
if (Directory.Exists(_pkiRoot))
{
try { Directory.Delete(_pkiRoot, recursive: true); }
catch { /* best-effort cleanup */ }
}
}
}