Joseph Doherty
54 lines
2.7 KiB
C#
54 lines
2.7 KiB
C#
using System.Reflection;
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using Shouldly;
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using Xunit;
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using ZB.MOM.WW.OtOpcUa.AdminUI.Uns.TagEditors;
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using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
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namespace ZB.MOM.WW.OtOpcUa.AdminUI.Tests.Uns;
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/// <summary>
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/// Gitea #642 guard: <see cref="NativeAlarmModel.SupportsNativeAlarms"/> is a hand-maintained set; it must equal
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/// the drivers whose concrete types implement <see cref="IAlarmSource"/>. Discovery is by reflection over the
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/// driver assemblies deployed beside this test; an assembly's driver type is the <see cref="DriverTypeNames"/>
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/// constant whose FIELD NAME equals the assembly suffix (Driver.Galaxy -> Galaxy = "GalaxyMxGateway").
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/// </summary>
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public sealed class NativeAlarmDriverSetGuardTests
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{
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private static readonly string[] NonDriverSuffixes = [".Contracts", ".Addressing", ".Cli", ".Historian.Gateway"];
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[Fact]
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public void SupportsNativeAlarms_matches_the_drivers_implementing_IAlarmSource()
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{
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var binDir = Path.GetDirectoryName(typeof(NativeAlarmDriverSetGuardTests).Assembly.Location)!;
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var constants = typeof(DriverTypeNames).GetFields(BindingFlags.Public | BindingFlags.Static)
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.Where(f => f.IsLiteral && f.FieldType == typeof(string))
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.ToDictionary(f => f.Name, f => (string)f.GetRawConstantValue()!, StringComparer.OrdinalIgnoreCase);
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const string prefix = "ZB.MOM.WW.OtOpcUa.Driver.";
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var implementers = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
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var scanned = 0;
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foreach (var dll in Directory.GetFiles(binDir, prefix + "*.dll"))
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{
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var name = Path.GetFileNameWithoutExtension(dll);
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if (NonDriverSuffixes.Any(s => name.EndsWith(s, StringComparison.Ordinal))) { continue; }
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Type[] types;
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try { types = Assembly.LoadFrom(dll).GetTypes(); }
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catch (ReflectionTypeLoadException ex) { types = ex.Types.Where(t => t is not null).ToArray()!; }
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scanned++;
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if (!types.Any(t => t.IsClass && !t.IsAbstract && typeof(IAlarmSource).IsAssignableFrom(t))) { continue; }
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var suffix = name[prefix.Length..];
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constants.TryGetValue(suffix, out var typeName).ShouldBeTrue($"no DriverTypeNames constant named '{suffix}' for {name}");
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implementers.Add(typeName!);
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}
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scanned.ShouldBeGreaterThan(5, "driver assemblies were not deployed to the test output; the guard would be vacuous");
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implementers.Count.ShouldBeGreaterThan(0);
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foreach (var typeName in constants.Values)
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{
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NativeAlarmModel.SupportsNativeAlarms(typeName).ShouldBe(implementers.Contains(typeName),
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$"NativeAlarmModel.AlarmDriverTypes disagrees with IAlarmSource for driver type '{typeName}'");
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}
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}
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}
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