30 lines
1.2 KiB
C#
30 lines
1.2 KiB
C#
using Microsoft.Extensions.Options;
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using PLib.Application.Metadata;
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namespace PLib.Tests.Library;
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/// <summary>
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/// A fixed <see cref="IOptionsMonitor{T}"/> over metadata sources.
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/// </summary>
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/// <remarks>
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/// The service reads <c>CurrentValue</c> on every lookup, because the user can add a source
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/// without restarting. A substitute would answer null and blow up in the one place that
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/// matters, so the tests hand it a real value instead.
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/// </remarks>
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internal sealed class MetadataMonitor(MetadataOptions value) : IOptionsMonitor<MetadataOptions>
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{
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public static MetadataMonitor Empty { get; } = new(new MetadataOptions());
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public static MetadataMonitor With(params MetadataSourceOptions[] sources) =>
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new(new MetadataOptions { Sources = [.. sources] });
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public static MetadataMonitor With(IReadOnlyList<MetadataSourceOptions> sources, int delayMilliseconds) =>
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new(new MetadataOptions { Sources = [.. sources], RequestDelayMilliseconds = delayMilliseconds });
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public MetadataOptions CurrentValue { get; } = value;
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public MetadataOptions Get(string? name) => CurrentValue;
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public IDisposable? OnChange(Action<MetadataOptions, string?> listener) => null;
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}
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