public async Task Triggable()
{
var e = new AutoResetEventAsync(false);
e.Set();
await TaskHelpers.AssertTriggered(e.WaitAsync());
}
public async Task UncancellableTrigger()
{
var e = new AutoResetEventAsync(false);
e.Set();
await TaskHelpers.AssertTriggered(e.WaitAsync(CancellationToken.None));
}
private async Task ObserveRecordsAsync(IObserver <Record> observer, CancellationToken cancellationToken)
{
var statusChanged = new AutoResetEventAsync(true);
var index = 0;
using (this.status.Subscribe(_ => statusChanged.Set()))
while (!cancellationToken.IsCancellationRequested)
{
await statusChanged.WaitAsync(cancellationToken);
for (; index < this.segments.Count; index++)
{
cancellationToken.ThrowIfCancellationRequested();
var currentIndex = index;
var record = await this.ReadRecordAsync(currentIndex, cancellationToken);
if (record != null)
{
observer.OnNext(record);
}
}
}
}
public async Task CancellableTrigger()
{
var e = new AutoResetEventAsync(false);
var src = new CancellationTokenSource();
e.Set();
await TaskHelpers.AssertTriggered(e.WaitAsync(src.Token));
}
public async Task DoubleTriggered()
{
var e = new AutoResetEventAsync(false);
Task waitAsync = e.WaitAsync();
Task wait2Async = e.WaitAsync();
e.Set();
await TaskHelpers.AssertTriggered(waitAsync);
await TaskHelpers.AssertNotTriggered(wait2Async);
}