Joseph Doherty
e77bca385a
- Galaxy: deadline bounds the wait, not the subscribe RPC; BadTimeout for all tags and late handles unsubscribed; doc comment relocated - S7: probe connect runs on the connect deadline so a timeout opens the backoff window - S7: a successful write only retires a Faulted the write side owns - S7: null array elements rejected (BadTypeMismatch); multi-PDU array writes documented non-atomic - S7 integration: array write test gated on S7_SIM_ALLOW_WRITES=1 Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
57 lines
2.5 KiB
C#
57 lines
2.5 KiB
C#
using Shouldly;
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using Xunit;
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using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
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namespace ZB.MOM.WW.OtOpcUa.Driver.S7.IntegrationTests.S7_1500;
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/// <summary>
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/// #610 item 2 (S7-016): array write round trip against the python-snap7 S7-1500 profile. Skips
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/// cleanly when the sim is absent. Uses DB1 bytes 700+ (the profile's 1024-byte DB1 has no seed
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/// there), so the writes cannot disturb another test's seeds. Writes also require
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/// <c>S7_SIM_ALLOW_WRITES=1</c>.
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/// </summary>
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[Collection(Snap7ServerCollection.Name)]
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[Trait("Category", "Integration")]
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[Trait("Device", "S7_1500")]
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public sealed class S7_1500ArrayWriteTests(Snap7ServerFixture sim)
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{
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private static S7DriverOptions Options(string host, int port) => new()
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{
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Host = host,
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Port = port,
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CpuType = S7CpuType.S71500,
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Rack = 0,
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Slot = 0,
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Timeout = TimeSpan.FromSeconds(5),
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Probe = new S7ProbeOptions { Enabled = false },
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RawTags = S7RawTags.Entries(
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new S7TagDefinition("I16Arr", "DB1.DBW700", S7DataType.Int16, Writable: true, ArrayCount: 4),
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new S7TagDefinition("F32Arr", "DB1.DBD720", S7DataType.Float32, Writable: true, ArrayCount: 3)),
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};
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/// <summary>Writes a non-trivial Int16[4] and Float32[3], then reads each back element-for-element.</summary>
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[Fact]
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public async Task Array_write_then_read_round_trips_through_real_S7comm()
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{
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if (sim.SkipReason is not null) Assert.Skip(sim.SkipReason);
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// S7_SIM_ENDPOINT may point at a real CPU; writing needs an explicit opt-in (simulator runs only).
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if (Environment.GetEnvironmentVariable("S7_SIM_ALLOW_WRITES") != "1")
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Assert.Skip("Write test: set S7_SIM_ALLOW_WRITES=1 to allow writes to the endpoint under test (simulator only).");
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await using var drv = new S7Driver(Options(sim.Host, sim.Port), "s7-arr-write");
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await drv.InitializeAsync("{}", TestContext.Current.CancellationToken);
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var i16 = new short[] { 111, -222, 3333, -4444 };
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var f32 = new[] { 1.5f, -2.25f, 1234.5f };
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var res = await drv.WriteAsync(
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[new WriteRequest("I16Arr", i16), new WriteRequest("F32Arr", f32)],
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TestContext.Current.CancellationToken);
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res.Select(r => r.StatusCode).ShouldAllBe(c => c == 0u);
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var read = await drv.ReadAsync(["I16Arr", "F32Arr"], TestContext.Current.CancellationToken);
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read.Select(r => r.StatusCode).ShouldAllBe(c => c == 0u);
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((short[])read[0].Value!).ShouldBe(i16);
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((float[])read[1].Value!).ShouldBe(f32);
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}
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}
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