Joseph Doherty
767e7031b3
Adds a project-owned, controllable Sparkplug B edge node (SparkplugEdgeNode) that
encodes with the SAME generated Tahu schema the driver decodes with — so the live
gate checks encode/decode symmetry rather than the driver against itself — and
drives the §3.6 matrix end-to-end over the real TLS+auth Mosquitto fixture.
The simulator frames its topics independently of SparkplugTopic.Format: a
simulator borrowing the parser's formatter could not detect a bug in it, because
both sides of the comparison would be wrong together. It registers a real NDEATH
Last Will at CONNECT, restarts seq at 0 on NBIRTH, publishes DATA metrics as
alias-only, carries bdSeq per session, and encodes signed ints as two's
complement in the unsigned proto field.
SparkplugLiveTests (Category=LiveIntegration, env-gated, skip-clean) covers:
birth -> alias-only data -> OnDataChange under the RawPath; late-join rebirth
NCMD honoured by an independent decoder; alias reuse across a rebirth routing by
metric NAME; a stale-bdSeq NDEATH ignored while the current one stales; the real
broker-published Will staling and the next birth restoring; seq wrap 255->0
requesting no rebirth while a deliberate gap does; and the browser's passive
window asserted ON THE WIRE (a third client watching spBv1.0/{group}/NCMD/#),
plus RequestRebirthAsync node-vs-group enumeration.
Two things make the suite falsifiable rather than decorative: the seq-wrap test
builds its ingestor with rebirthDebounce: TimeSpan.Zero (at the shipped 10s
default a wrap-triggered NCMD would be swallowed and the test would pass for the
wrong reason) and pairs the silence with a deliberate gap that must produce one;
and the passivity assertion observes the broker rather than the session's own
publish counter, which can only see the seam it guards.
Docker/docker-compose.yml gains a profile-gated `sparkplug-sim` service running
the same engine standalone against the same broker (TLS, CA-pinned) — a manual
driving aid for the AdminUI picker, deliberately NOT a test dependency, since the
matrix needs an edge node it can command mid-test. Its app directory is publish
output (publish-simulator.sh), gitignored like secrets/.
Offline: 15 skipped, 0 failed with no env set. Live: 15/15 passed against
10.100.0.35:8883. Falsifiability spot-check: mutating AliasTable.RebuildFromBirth
to merge instead of replace, and neutering SparkplugCodec.ReinterpretSigned for
Int32, turned exactly the two corresponding tests red and nothing else; both
mutations reverted.
Claude-Session: https://claude.ai/code/session_01GASWkNEi68FSCtvr6rLoEW
47 lines
2.4 KiB
XML
47 lines
2.4 KiB
XML
<Project Sdk="Microsoft.NET.Sdk">
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<!--
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The Sparkplug B edge-node simulator: one engine, two consumers.
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1. `SparkplugLiveTests` (the sibling IntegrationTests project) references this project and
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drives `SparkplugEdgeNode` IN PROCESS, because the §3.6 matrix needs an edge node that can
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be TOLD to reuse an alias, skip a seq, or die — a container cannot be commanded mid-test.
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2. `Docker/docker-compose.yml`'s `sparkplug-sim` service runs the very same assembly as a
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standalone always-on edge node (see `Program`), so an operator can drive the AdminUI
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Sparkplug picker against live birth/data traffic.
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It is therefore an Exe (a container entrypoint) that is also referenced as a library. That is
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the reason it is a nested project rather than a folder of files in the test project, and the
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reason the test project's csproj removes this directory from its default globs.
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DEPENDENCIES ARE DELIBERATELY NARROW: `.Contracts` (for the generated Tahu `Payload` types —
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the ENCODE side of the encode/decode symmetry this fixture exists to prove) plus MQTTnet. It
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does NOT reference the runtime `.Driver` project, on purpose: a simulator that formatted its
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topics with the driver's own `SparkplugTopic.Format` could not detect a bug in it, because
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both sides of the comparison would be wrong together. The schema is shared (it IS the spec);
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the framing logic is written independently here.
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-->
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net10.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<LangVersion>latest</LangVersion>
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<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
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<GenerateDocumentationFile>true</GenerateDocumentationFile>
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<NoWarn>$(NoWarn);CS1591</NoWarn>
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<IsPackable>false</IsPackable>
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<RootNamespace>ZB.MOM.WW.OtOpcUa.Driver.Mqtt.SparkplugSimulator</RootNamespace>
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<AssemblyName>ZB.MOM.WW.OtOpcUa.Driver.Mqtt.SparkplugSimulator</AssemblyName>
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</PropertyGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\..\..\src\Drivers\ZB.MOM.WW.OtOpcUa.Driver.Mqtt.Contracts\ZB.MOM.WW.OtOpcUa.Driver.Mqtt.Contracts.csproj"/>
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="MQTTnet"/>
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</ItemGroup>
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</Project>
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