[5752] FakeLogCollector waiting capabilities

[Demo30]

Microsoft Reviewers: Open in CodeFlow

PR Description

• This PR tackles issue [API Proposal]: Extend FakeLogCollector with waiting capabilities #5752.
• It adds support for asynchronously streaming new logs to the caller via added method IAsyncEnumerable<FakeLogRecord> GetLogsAsync(CancellationToken cancellationToken = default).
• This method enables the caller to asynchronously await a log (or custom-defined sequence of logs) without the need to resort to GetSnapshot/polling approach.
• When leveraging library such as System.Linq.Async the caller is enabled to await the logs using elegant syntax such as: var myLogs = await fakeLogCollector.GetLogsAsync(ct).Where(log => log.Category == "x").Take(3).ToListAsync();