public async Task Dispatch_OneAction_ShouldDispatchOneAction()
{
// arrange
var context = new Mock <IExecutionTaskContext>();
context.Setup(t => t.Register(It.IsAny <IExecutionTask>()));
var scheduler = new BatchScheduler();
ValueTask Dispatch() => default;
scheduler.Schedule(Dispatch);
Assert.True(scheduler.HasTasks);
// act
await scheduler.DispatchAsync();
// assert
Assert.False(scheduler.HasTasks);
}