public void STE_should_not_run_cancelled_shutdown_hooks()
{
var executor = new SingleThreadEventExecutor("Foo" + ThreadLocalRandom.Current.Next(),
TimeSpan.FromMilliseconds(100));
var hook = new MyHook();
executor.AddShutdownHook(hook);
executor.RemoveShutdownHook(hook);
executor.GracefulShutdownAsync().Wait();
Assert.False(hook.WasExecuted);
}
public void STE_should_complete_task_when_operation_is_completed()
{
var executor = new SingleThreadEventExecutor("Foo" + ThreadNameCounter.GetAndIncrement(),
TimeSpan.FromMilliseconds(100));
Func<bool> myFunc = () => true;
var task = executor.SubmitAsync(myFunc);
Assert.True(task.Wait(200), "Should have completed task in under 200 milliseconds");
Assert.True(task.Result);
executor.GracefulShutdownAsync();
}
public void STE_should_run_shutdown_hooks()
{
var executor = new SingleThreadEventExecutor("Foo" + ThreadLocalRandom.Current.Next(),
TimeSpan.FromMilliseconds(100));
var hook = new MyHook();
executor.AddShutdownHook(hook);
// added a sanity check here to make sure that normal scheduled operations can run
Func<bool> myFunc = () => true;
var task = executor.SubmitAsync(myFunc);
Assert.True(task.Wait(200), "Should have completed task in under 200 milliseconds");
Assert.True(task.Result);
// end sanity check, begin actual test
executor.GracefulShutdownAsync().Wait();
Assert.True(hook.WasExecuted);
}
public void STE_should_execute_scheduled_tasks_on_time()
{
var counter = new AtomicCounter(0);
var executor = new SingleThreadEventExecutor("Foo" + ThreadNameCounter.GetAndIncrement(),
TimeSpan.FromMilliseconds(100));
Action<object> increment = o => ((AtomicCounter) o).GetAndIncrement();
// schedule a delayed operation
var checkCounter = executor.ScheduleAsync(o => Assert.True(((AtomicCounter) o).Current == 4), counter,
TimeSpan.FromMilliseconds(40));
// schedule 4 immediate operations
executor.Execute(increment, counter);
executor.Execute(increment, counter);
executor.Execute(increment, counter);
executor.Execute(increment, counter);
// delay should run after the first 4 previous
checkCounter.Wait(TimeSpan.FromMilliseconds(100));
}