public async Task ProgressAsync()
{
var progress = "progress";
var task = taskFactory.Create(Text, t => {
t.Progress.Report(progress);
SpinWait.SpinUntil(() => mockProgressDialog.Message == progress,
TimeSpan.FromMilliseconds(100));
});
task.Run();
mockProgressDialog.Received().Message = progress;
// Make sure we do not keep receiving progress reports after the task is done.
mockProgressDialog.ClearReceivedCalls();
await Task.Delay(100);
Assert.That(mockProgressDialog.ReceivedCalls().Count, Is.LessThanOrEqualTo(1));
}