Fixed the MonitorEventsAsync_Succeeds test.

Author: Duracell1989

test/Docker.DotNet.Tests/ISystemOperations.Tests.cs

@@ -111,7 +111,7 @@ public async Task MonitorEventsAsync_Succeeds()
 
             await _client.Images.CreateImageAsync(new ImagesCreateParameters { FromImage = "hello-world" }, null, progressJSONMessage);
 
-            var task = Task.Run(() => _client.System.MonitorEventsAsync(new ContainerEventsParameters(), progressMessage, cts.Token));
+            var task = _client.System.MonitorEventsAsync(new ContainerEventsParameters(), progressMessage, cts.Token);
 
             await _client.Images.TagImageAsync(repository, new ImageTagParameters { RepositoryName = repository, Tag = newTag });
 
@@ -120,6 +120,7 @@ public async Task MonitorEventsAsync_Succeeds()
             bool taskIsCancelled = false;
             try
             {
+                Thread.Sleep(500); // Let's wait some time before cancelling the monitor stream to make sure we got some progress back.
                 await task;
             }
             catch (OperationCanceledException)