52 lines
1.8 KiB
C#
52 lines
1.8 KiB
C#
using NATS.Server.JetStream.Models;
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using NATS.Server.JetStream.Storage;
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namespace NATS.Server.Tests;
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public class StreamStoreContractTests
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{
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[Fact]
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public async Task Append_increments_sequence_and_updates_state()
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{
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var store = new FakeStreamStore();
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var seq = await store.AppendAsync("foo", "bar"u8.ToArray(), default);
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seq.ShouldBe((ulong)1);
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(await store.GetStateAsync(default)).Messages.ShouldBe((ulong)1);
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}
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private sealed class FakeStreamStore : IStreamStore
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{
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private ulong _last;
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public ValueTask<ulong> AppendAsync(string subject, ReadOnlyMemory<byte> payload, CancellationToken ct)
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{
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_last++;
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return ValueTask.FromResult(_last);
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}
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public ValueTask<StreamState> GetStateAsync(CancellationToken ct)
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=> ValueTask.FromResult(new StreamState { Messages = _last });
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public ValueTask<StoredMessage?> LoadAsync(ulong sequence, CancellationToken ct)
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=> ValueTask.FromResult<StoredMessage?>(null);
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public ValueTask<StoredMessage?> LoadLastBySubjectAsync(string subject, CancellationToken ct)
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=> ValueTask.FromResult<StoredMessage?>(null);
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public ValueTask<IReadOnlyList<StoredMessage>> ListAsync(CancellationToken ct)
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=> ValueTask.FromResult<IReadOnlyList<StoredMessage>>([]);
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public ValueTask<bool> RemoveAsync(ulong sequence, CancellationToken ct)
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=> ValueTask.FromResult(false);
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public ValueTask PurgeAsync(CancellationToken ct) => ValueTask.CompletedTask;
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public ValueTask<byte[]> CreateSnapshotAsync(CancellationToken ct)
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=> ValueTask.FromResult(Array.Empty<byte>());
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public ValueTask RestoreSnapshotAsync(ReadOnlyMemory<byte> snapshot, CancellationToken ct)
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=> ValueTask.CompletedTask;
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}
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}
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