68 lines
2.4 KiB
C#
68 lines
2.4 KiB
C#
using ZB.MOM.WW.OtOpcUa.Driver.AbCip;
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namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip.Tests;
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/// <summary>
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/// Test fake for <see cref="IAbCipTagRuntime"/>. Stores the mock PLC value in
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/// <see cref="Value"/> + returns it from <see cref="DecodeValue"/>. Use
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/// <see cref="Status"/> to simulate libplctag error codes,
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/// <see cref="ThrowOnInitialize"/> / <see cref="ThrowOnRead"/> to simulate exceptions.
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/// </summary>
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internal sealed class FakeAbCipTag : IAbCipTagRuntime
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{
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public AbCipTagCreateParams CreationParams { get; }
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public object? Value { get; set; }
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public int Status { get; set; }
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public bool ThrowOnInitialize { get; set; }
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public bool ThrowOnRead { get; set; }
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public Exception? Exception { get; set; }
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public int InitializeCount { get; private set; }
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public int ReadCount { get; private set; }
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public int WriteCount { get; private set; }
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public bool Disposed { get; private set; }
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public FakeAbCipTag(AbCipTagCreateParams createParams) => CreationParams = createParams;
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public Task InitializeAsync(CancellationToken cancellationToken)
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{
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InitializeCount++;
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if (ThrowOnInitialize) throw Exception ?? new InvalidOperationException("fake initialize failure");
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return Task.CompletedTask;
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}
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public Task ReadAsync(CancellationToken cancellationToken)
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{
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ReadCount++;
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if (ThrowOnRead) throw Exception ?? new InvalidOperationException("fake read failure");
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return Task.CompletedTask;
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}
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public Task WriteAsync(CancellationToken cancellationToken)
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{
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WriteCount++;
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return Task.CompletedTask;
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}
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public int GetStatus() => Status;
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public object? DecodeValue(AbCipDataType type, int? bitIndex) => Value;
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public void EncodeValue(AbCipDataType type, int? bitIndex, object? value) => Value = value;
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public void Dispose() => Disposed = true;
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}
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/// <summary>Test factory that produces <see cref="FakeAbCipTag"/>s and indexes them for assertion.</summary>
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internal sealed class FakeAbCipTagFactory : IAbCipTagFactory
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{
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public Dictionary<string, FakeAbCipTag> Tags { get; } = new(StringComparer.OrdinalIgnoreCase);
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public Func<AbCipTagCreateParams, FakeAbCipTag>? Customise { get; set; }
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public IAbCipTagRuntime Create(AbCipTagCreateParams createParams)
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{
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var fake = Customise?.Invoke(createParams) ?? new FakeAbCipTag(createParams);
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Tags[createParams.TagName] = fake;
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return fake;
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}
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}
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