Joseph Doherty
f3832aa48c
MeshGrpcMapConventionTests - source-scan of Program.cs (solution-root walk, following FlushLoggingConventionTests.cs's idiom): zero direct MapGrpcService</MapZbLocalDbSync( occurrences, exactly one MapOtOpcUaMeshGrpcServices( call. Complements the endpoint-metadata census (T1-T3): the census catches a map added to MeshGrpcEndpoints without the AllowAnonymous convention, but cannot see a map that bypasses the helper and goes straight into Program.cs - that shape never reaches MapOtOpcUaMeshGrpcServices at all. Verified red against the pre-T1 Program.cs (five inline map sites, zero mapper calls) and green against the current extracted form.
67 lines
3.1 KiB
C#
67 lines
3.1 KiB
C#
using Shouldly;
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using Xunit;
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namespace ZB.MOM.WW.OtOpcUa.Host.IntegrationTests;
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/// <summary>
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/// R3-01 T7 — a source-scan guard, following the solution-root-walk idiom
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/// <c>ZB.MOM.WW.OtOpcUa.Driver.S7.Cli.Tests.FlushLoggingConventionTests</c> uses. Complements the
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/// endpoint-metadata census (<c>MeshGrpcAnonymousMetadataTests</c>): the census catches a map
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/// added to <c>MeshGrpcEndpoints</c> without the <c>AllowAnonymous</c> convention, but it cannot
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/// catch a map added to <c>Program.cs</c> that bypasses the helper entirely — that shape never
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/// goes through <c>MapOtOpcUaMeshGrpcServices</c> at all, so the census would simply never see it.
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/// </summary>
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/// <remarks>
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/// Would have FAILED at HEAD before T1: <c>Program.cs</c> used to carry the five map sites
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/// inline (<c>MapZbLocalDbSync()</c>, four <c>MapGrpcService<T>()</c> calls) with no
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/// <c>MapOtOpcUaMeshGrpcServices</c> call at all.
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/// </remarks>
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public sealed class MeshGrpcMapConventionTests
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{
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private static readonly string ProgramCsPath = LocateProgramCs();
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[Fact]
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public void ProgramCs_ContainsNoDirectMeshGrpcMapSites_AndExactlyOneMapperCall()
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{
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var source = File.ReadAllText(ProgramCsPath);
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// Guard-of-the-guard: a bad path (an empty file, or one that never had the mapper in the
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// first place) must not pass this test by finding nothing to count.
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source.ShouldNotBeNullOrWhiteSpace();
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source.ShouldContain("MapOtOpcUaMeshGrpcServices(");
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CountOccurrences(source, "MapGrpcService<").ShouldBe(0,
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"every MapGrpcService<T>() call must live inside MeshGrpcEndpoints.MapOtOpcUaMeshGrpcServices, " +
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"not inline in Program.cs (03/S14 — a map added outside the helper is invisible to the " +
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"endpoint-metadata census).");
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CountOccurrences(source, "MapZbLocalDbSync(").ShouldBe(0,
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"the LocalDb sync map must live inside MeshGrpcEndpoints.MapOtOpcUaMeshGrpcServices, not inline " +
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"in Program.cs, for the same reason as MapGrpcService<T>() above.");
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CountOccurrences(source, "MapOtOpcUaMeshGrpcServices(").ShouldBe(1,
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"Program.cs must call the mapper exactly once; more than one call would map the mesh gRPC " +
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"services twice (a route conflict) and zero calls would drop them entirely.");
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}
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private static int CountOccurrences(string source, string needle)
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{
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var count = 0;
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var index = 0;
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while ((index = source.IndexOf(needle, index, StringComparison.Ordinal)) >= 0)
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{
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count++;
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index += needle.Length;
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}
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return count;
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}
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private static string LocateProgramCs()
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{
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var dir = new DirectoryInfo(AppContext.BaseDirectory);
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while (dir is not null && !File.Exists(Path.Combine(dir.FullName, "ZB.MOM.WW.OtOpcUa.slnx")))
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dir = dir.Parent;
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dir.ShouldNotBeNull("Could not find solution root (ZB.MOM.WW.OtOpcUa.slnx).");
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return Path.Combine(dir!.FullName, "src", "Server", "ZB.MOM.WW.OtOpcUa.Host", "Program.cs");
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}
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}
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