Joseph Doherty
91 lines
3.7 KiB
C#
91 lines
3.7 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.Historian.QuestDb.Tests;
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public sealed class QuestDbHistorianProviderTests
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{
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private static QuestDbHistorianProvider Make() => new(new QuestDbHistorianOptions
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{
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ConnectionString = "Host=localhost;Port=18812;Username=admin;Password=quest;Database=qdb;ServerCompatibilityMode=NoTypeLoading",
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});
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[Fact]
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public void Name_and_all_six_kinds()
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{
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var p = Make();
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p.Name.ShouldBe("QuestDb");
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p.SupportedKinds.ShouldBe(Enum.GetValues<HistorianValueKind>(), ignoreOrder: true);
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p.SupportedKinds.Count.ShouldBe(6);
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}
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[Fact]
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public void Creates_all_five_seams_without_touching_questdb()
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{
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var sp = new NullSp();
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var p = Make();
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p.CreateDataSource(sp).ShouldBeOfType<QuestDbHistorianDataSource>();
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p.CreateValueWriter(sp).ShouldBeOfType<QuestDbHistorianValueWriter>();
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p.CreateAlarmWriter(sp).ShouldBeOfType<QuestDbAlarmHistorianWriter>();
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p.CreateProvisioning(sp).ShouldBeOfType<QuestDbTagProvisioner>();
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p.CreateUpdater(sp).ShouldBeOfType<QuestDbHistorianDataUpdater>();
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}
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[Fact]
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public void Supported_kinds_are_a_frozen_set() =>
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Make().SupportedKinds.ShouldBeAssignableTo<System.Collections.Frozen.FrozenSet<HistorianValueKind>>();
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/// <summary>
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/// An invalid table prefix must not fail provider construction (the host resolves the provider even when no
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/// consumer is enabled); it surfaces only when a seam is actually built.
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/// </summary>
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[Fact]
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public void An_invalid_prefix_fails_only_when_a_seam_is_built()
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{
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var p = new QuestDbHistorianProvider(new QuestDbHistorianOptions { ConnectionString = "Host=x", TablePrefix = "bad;prefix" });
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p.Name.ShouldBe("QuestDb");
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Should.Throw<ArgumentException>(() => p.CreateDataSource(new NullSp()));
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}
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[Fact]
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public void Every_seam_shares_one_connection_bootstrapper_catalog_and_wal_wait()
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{
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var sp = new NullSp();
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var p = Make();
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var a = (QuestDbHistorianDataSource)p.CreateDataSource(sp);
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var b = (QuestDbHistorianDataSource)p.CreateDataSource(sp);
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var w = p.CreateValueWriter(sp);
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var u = p.CreateUpdater(sp)!;
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var prov = p.CreateProvisioning(sp);
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var alarm = p.CreateAlarmWriter(sp);
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Field(a, "_conn").ShouldBeSameAs(Field(b, "_conn"));
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Field(a, "_conn").ShouldBeSameAs(Field(w, "_conn"));
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Field(a, "_conn").ShouldBeSameAs(Field(u, "_conn"));
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Field(a, "_conn").ShouldBeSameAs(Field(alarm, "_conn"));
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Field(a, "_bootstrap").ShouldBeSameAs(Field(b, "_bootstrap"));
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Field(a, "_bootstrap").ShouldBeSameAs(Field(prov, "_bootstrap"));
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Field(a, "_bootstrap").ShouldBeSameAs(Field(alarm, "_bootstrap"));
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Field(a, "_catalog").ShouldBeSameAs(Field(b, "_catalog"));
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Field(a, "_catalog").ShouldBeSameAs(Field(w, "_catalog"));
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Field(a, "_catalog").ShouldBeSameAs(Field(u, "_tags"));
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Field(a, "_catalog").ShouldBeSameAs(Field(prov, "_catalog"));
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Field(w, "_wal").ShouldBeSameAs(Field(u, "_wal"));
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Field(w, "_wal").ShouldBeSameAs(Field(prov, "_wal"));
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Field(w, "_wal").ShouldBeSameAs(Field(alarm, "_wal"));
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}
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[Fact]
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public void The_constructor_rejects_null_options() =>
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Should.Throw<ArgumentNullException>(() => new QuestDbHistorianProvider(null!));
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private static object? Field(object o, string name) =>
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o.GetType().GetField(name, System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)!.GetValue(o);
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private sealed class NullSp : IServiceProvider
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{
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public object? GetService(Type serviceType) => null;
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}
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}
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