Files
lmxopcua/tests/ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests/Emulate/AbCipEmulateUdtReadTests.cs
Joseph Doherty 58a0cccc67 AB CIP Logix Emulate golden-box tier — scaffold the code + docs so the L5X + Emulate PC drop in without fixture-code changes. Closes the initial design question the user raised; the actual Emulate-side work (author project, commit L5X, install Emulate on the dev box) is tracked as #223. Scaffolding ships everything that doesn't need the live Emulate instance: tier-gated test classes that skip cleanly when AB_SERVER_PROFILE is unset, the profile gate helper, the LogixProject/README.md documenting the exact project state the tests expect, the fixture coverage doc's new §Logix Emulate tier section with the when-to-trust table extended from 3 columns to 4, and the dev-environment.md integration-host row.
AbServerProfileGate — static helper that reads `AB_SERVER_PROFILE` env var (defaults to "abserver") + exposes `SkipUnless(params string[] requiredProfiles)` matching the MODBUS_SIM_PROFILE pattern the DL205StringQuirkTests uses one directory over. Emulate-only tests call `AbServerProfileGate.SkipUnless("emulate")` at the top of each fact body; ab_server-default runs see them skip with a clear message pointing at the Emulate setup steps.

AbCipEmulateUdtReadTests — one test proving the #194 whole-UDT read optimization works against the real Logix Template Object, not just the golden byte buffers the unit suite uses. Builds an `AbCipDriverOptions` with a Structure tag `Motor1 : Motor_UDT` that has three declared members (Speed : DINT, Torque : REAL, Status : DINT), reads them via the `.Speed / .Torque / .Status` dotted-tag syntax, asserts the driver gets the grouped whole-UDT path + decodes each at the right offset. Required seed values documented inline + in LogixProject/README.md: Speed=1800, Torque=42.5f, Status=0x0001.

AbCipEmulateAlmdTests — one test proving the #177 ALMD projection fires `OnAlarmEvent` when a real ALMD instruction's `In` edge rises, not just the fake `InFaulted` timer edges the unit suite drives. Needs a `SimulateAlarm : BOOL` tag routed through `MainRoutine` ladder (`XIC SimulateAlarm OTE HighTempAlarm.In`) so the test case can pulse the input via the existing `IWritable.WriteAsync` path instead of scripting Emulate via its own socket. Alarm-projection options carry `EnableAlarmProjection = true` + 200 ms poll interval; a `TaskCompletionSource` gates the raise-event assertion with a 5 s deadline. Cleanup writes SimulateAlarm=false so consecutive runs start from known state.

LogixProject/README.md — the Studio 5000 project state the Emulate-tier tests depend on. Explains why L5X over ACD (text diff, reproducible import, no per-install state), the UDT + tag + routine structure, how to bring it up on the Emulate PC. Ships as a stub pending actual author + L5X export + commit; the README itself keeps the requirements visible so the L5X author has a checklist.

docs/drivers/AbServer-Test-Fixture.md — new §Logix Emulate golden-box tier section with the coverage-promotion table (ab_server / Emulate / hardware per gap), the setup-env-var recipe, the costs to accept (license, Hyper-V conflict, manual lifecycle). "When to trust" table extended from 3 columns (ab_server / unit / rig) to 4 (ab_server / unit / Logix Emulate / rig); two new rows for EtherNet/IP embedded-switch + redundant-chassis failover that even Emulate can't help with. Follow-up candidates list gets Logix Emulate as option 1 ahead of the pre-existing "extend ab_server upstream" + "stand up a lab rig". See-also file list gains AbServerProfileGate.cs + Docker/ + Emulate/ + LogixProject/README.md entries.

docs/v2/dev-environment.md — §C Integration host gains a Rockwell Studio 5000 Logix Emulate row: purpose (AB CIP golden-box tier closing UDT/ALMD/AOI/safety/ConnectionSize gaps), type (Windows-only, Hyper-V conflict matching TwinCAT XAR's constraint), port 44818, credentials note, owner split between integration-host admin for license+install and developer for per-session runtime start.

Verified: Emulate tests skip cleanly when AB_SERVER_PROFILE is unset — both `[SKIP]` with the operator-facing message pointing at the env-var setup. Whole-solution build 0 errors. Tests will transition from skip → pass once the L5X + Emulate PC land per #223.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-20 12:54:39 -04:00

82 lines
3.9 KiB
C#

using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
using ZB.MOM.WW.OtOpcUa.Driver.AbCip;
namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests.Emulate;
/// <summary>
/// Golden-box-tier UDT read tests against Rockwell Studio 5000 Logix Emulate.
/// Promotes the whole-UDT-read optimization (task #194) from unit-only coverage
/// (golden Template Object byte buffers + <see cref="AbCipUdtMemberLayoutTests"/>)
/// to end-to-end wire-level coverage — Emulate's firmware speaks the same CIP
/// Template Object responses real hardware does, so the member-offset math + the
/// <c>AbCipUdtReadPlanner</c> grouping get validated against production semantics.
/// </summary>
/// <remarks>
/// <para><b>Required Emulate project state</b> (see <c>LogixProject/README.md</c>
/// for the L5X export that seeds this; ship the project once Emulate is on the
/// integration host):</para>
/// <list type="bullet">
/// <item>UDT <c>Motor_UDT</c> with members <c>Speed : DINT</c>, <c>Torque : REAL</c>,
/// <c>Status : DINT</c> — the member set <see cref="AbCipUdtMemberLayoutTests"/>
/// uses as its declared-layout golden reference.</item>
/// <item>Controller-scope tag <c>Motor1 : Motor_UDT</c> with seed values
/// Speed=<c>1800</c>, Torque=<c>42.5f</c>, Status=<c>0x0001</c>.</item>
/// </list>
/// <para>Runs only when <c>AB_SERVER_PROFILE=emulate</c>. With ab_server
/// (the default), skips cleanly — ab_server lacks UDT / Template Object emulation
/// so this wire-level test couldn't pass against it regardless.</para>
/// </remarks>
[Collection("AbServerEmulate")]
[Trait("Category", "Integration")]
[Trait("Tier", "Emulate")]
public sealed class AbCipEmulateUdtReadTests
{
[AbServerFact]
public async Task WholeUdt_read_decodes_each_member_at_its_Template_Object_offset()
{
AbServerProfileGate.SkipUnless(AbServerProfileGate.Emulate);
var endpoint = Environment.GetEnvironmentVariable("AB_SERVER_ENDPOINT")
?? throw new InvalidOperationException(
"AB_SERVER_ENDPOINT must be set to the Logix Emulate instance " +
"(e.g. '10.0.0.42:44818') when AB_SERVER_PROFILE=emulate.");
var options = new AbCipDriverOptions
{
Devices = [new AbCipDeviceOptions($"ab://{endpoint}/1,0")],
Tags = [
new AbCipTagDefinition(
Name: "Motor1",
DeviceHostAddress: $"ab://{endpoint}/1,0",
TagPath: "Motor1",
DataType: AbCipDataType.Structure,
Members: [
new AbCipStructureMember("Speed", AbCipDataType.DInt),
new AbCipStructureMember("Torque", AbCipDataType.Real),
new AbCipStructureMember("Status", AbCipDataType.DInt),
]),
],
Timeout = TimeSpan.FromSeconds(5),
};
await using var drv = new AbCipDriver(options, driverInstanceId: "emulate-udt-smoke");
await drv.InitializeAsync("{}", TestContext.Current.CancellationToken);
// Whole-UDT read optimization from task #194: one libplctag read on the
// parent tag, three decodes from the buffer at member offsets. Asserts
// Emulate's Template Object response matches what AbCipUdtMemberLayout
// computes from the declared member set.
var snapshots = await drv.ReadAsync(
["Motor1.Speed", "Motor1.Torque", "Motor1.Status"],
TestContext.Current.CancellationToken);
snapshots.Count.ShouldBe(3);
foreach (var s in snapshots) s.StatusCode.ShouldBe(AbCipStatusMapper.Good);
Convert.ToInt32(snapshots[0].Value).ShouldBe(1800);
Convert.ToSingle(snapshots[1].Value).ShouldBe(42.5f, tolerance: 0.001f);
Convert.ToInt32(snapshots[2].Value).ShouldBe(0x0001);
}
}