public async Task with_restart()
{
var memory = new MemoryStorageDriver();
var cache = new Testing.InMemoryCache();
var ew = new EventStreamWrapper <TstEvent, CheckSequence>(
memory,
new [] { new CheckSequence.Projection() },
cache
);
await ew.AppendEventsAsync(new[] { new TstEvent(1) });
await ew.AppendEventsAsync(new[] { new TstEvent(2) });
await ew.AppendEventsAsync(new[] { new TstEvent(3) });
await ew.TrySaveAsync();
await ew.AppendEventsAsync(new[] { new TstEvent(4) });
await ew.AppendEventsAsync(new[] { new TstEvent(5) });
Assert.Equal(5u, ew.Current.LastEvt);
// try to read:
var ew2 = new EventStreamWrapper <TstEvent, CheckSequence>(
memory, new[] { new CheckSequence.Projection() },
cache);
await ew2.InitializeAsync();
Assert.Equal(5u, ew2.Current.LastEvt);
}
public async Task without_restart()
{
var memory = new MemoryStorageDriver();
var ew = new EventStreamWrapper <TstEvent, CheckSequence>(
memory,
new [] { new CheckSequence.Projection() }, null
);
await ew.AppendEventsAsync(new[] { new TstEvent(1) });
await ew.AppendEventsAsync(new[] { new TstEvent(2) });
await ew.AppendEventsAsync(new[] { new TstEvent(3) });
Assert.Equal(3u, ew.Current.LastEvt);
// try to read:
var ew2 = new EventStreamWrapper <TstEvent, CheckSequence>(
memory, new[] { new CheckSequence.Projection() }, null);
await ew2.InitializeAsync();
Assert.Equal(3u, ew2.Current.LastEvt);
}
/// <summary> Append events, constructed from the state, to the stream. </summary>
/// <remarks>
/// Builder returns array of events to be appended. It may be called more than
/// once.
/// </remarks>
public Task <AppendResult> AppendEventsAsync(
Func <TState, Append <TEvent> > builder,
CancellationToken cancel)
=>
EnqueueAction(c => Wrapper.AppendEventsAsync(builder, c), cancel);