public HttpCacheTaskScheduler(ICache cache, IClock clock, IVolatileTask task)
     : base(task)
 {
     _cache = cache;
     _clock = clock;
 }
 public StubTaskScheduler(StubSchedule stubSchedule, IVolatileTask task)
     : base(task)
 {
     _stubSchedule = stubSchedule;
 }
 protected TaskScheduler(IVolatileTask task)
 {
     Task = task;
 }