Joseph Doherty
30 lines
1.1 KiB
C#
30 lines
1.1 KiB
C#
namespace ZB.MOM.WW.Secrets.Tests.Fakes;
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/// <summary>
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/// A <see cref="TimeProvider"/> test double with a settable <see cref="GetUtcNow"/>, so a test can
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/// advance the clock past a cache TTL deterministically without sleeping.
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/// </summary>
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public sealed class MutableTimeProvider : TimeProvider
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{
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private DateTimeOffset _utcNow;
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/// <summary>Creates a provider starting at the given instant (defaults to the Unix epoch).</summary>
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/// <param name="start">The initial <see cref="GetUtcNow"/> value.</param>
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public MutableTimeProvider(DateTimeOffset? start = null) =>
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_utcNow = start ?? DateTimeOffset.UnixEpoch;
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/// <summary>Gets or sets the current UTC instant this provider reports.</summary>
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public DateTimeOffset UtcNow
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{
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get => _utcNow;
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set => _utcNow = value;
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}
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/// <summary>Moves the clock forward by <paramref name="delta"/>.</summary>
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/// <param name="delta">The amount to advance.</param>
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public void Advance(TimeSpan delta) => _utcNow += delta;
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/// <inheritdoc />
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public override DateTimeOffset GetUtcNow() => _utcNow;
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}
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