if err != nil {
		return nil, err
	}
	dialer := &net.Dialer{
		Timeout: 5 * time.Second,
	}
	var res TestGrid
	res.Hosts = hosts
	ready := make(chan struct{})
	ctx, cancel := context.WithCancel(context.Background())
	res.cancel = cancel
	for i, host := range hosts {
		manager, err := NewManager(ctx, ManagerOptions{
			Dialer: ConnectWS(dialer.DialContext,
				dummyNewToken,
				nil),
			Local:        host,

          this,
          IllegalStateException("Invalid content-type: ${body.contentType()}"),
          response,
        )
        return
      }

      // This is a long-lived response. Cancel full-call timeouts.
      call?.timeout()?.cancel()

      // Replace the body with a stripped one so the callbacks can't see real data.
      val response = response.stripBody()

      val reader = ServerSentEventReader(body.source(), this)

      @Override
      @SuppressWarnings("Interruption") // We are propagating an interrupt from a caller.
      public void cancel(boolean mayInterruptIfRunning) {
        /*
         * Lock to ensure that a task cannot be rescheduled while a cancel is ongoing.
         *
         * In theory, cancel() could execute arbitrary listeners -- bad to do while holding a lock.

		// Fill up queue.
		for sendReq {
			select {
			case st.Requests <- []byte("Hello"):
				time.Sleep(10 * time.Millisecond)
			default:
				sendReq = false
			}
		}
		cancel()
		<-serverCanceled
		t.Log("server cancel time:", time.Since(start))
		clientEnd := <-clientCanceled
		if !errors.Is(err, context.Canceled) {
			t.Error("expected context.Canceled, got", err)
		}

    assertEvents(
      "take plan 1",
      "plan 1 TCP connecting...",
    )

    taskFaker.advanceUntil(500.ms)
    assertEvents(
      "take plan 2",
      "plan 0 cancel",
      "plan 1 cancel",
    )

    taskFaker.advanceUntil(510.ms)
    assertEvents(
      "plan 1 TCP connect canceled",
    )

    taskFaker.advanceUntil(520.ms)
    assertEvents(

	ctx, cancel := context.WithCancel(ctx)

	target := &WebhookTarget{
		id:         event.TargetID{ID: id, Name: "webhook"},
		args:       args,
		loggerOnce: loggerOnce,
		transport:  transport,
		cancel:     cancel,
		cancelCh:   ctx.Done(),
	}

	return target, nil

    events.add(Failure(t, response, t?.message ?: response?.body?.string()))
    drainCancelQueue(eventSource)
  }

  private fun drainCancelQueue(eventSource: EventSource) {
    if (cancel) {
      cancel = false
      eventSource.cancel()
    }
  }

  private fun nextEvent(): Any =
    events.poll(10, TimeUnit.SECONDS)
      ?: throw AssertionError("Timed out waiting for event.")

  fun assertExhausted() {

	return BucketInfo{}, toObjectErr(errVolumeNotFound, bucket)
}

func (client *remotePeerS3Client) ListBuckets(ctx context.Context, opts BucketOptions) ([]BucketInfo, error) {
	ctx, cancel := context.WithTimeout(ctx, globalDriveConfig.GetMaxTimeout())
	defer cancel()

	bi, err := listBucketsRPC.Call(ctx, client.gridConn(), &opts)
	if err != nil {
		return nil, toStorageErr(err)
	}
	buckets := make([]BucketInfo, 0, len(bi.Value()))

	"runtime"
	"strconv"
	"testing"

	"github.com/dustin/go-humanize"
	"github.com/minio/minio/internal/config/storageclass"
)

func TestRepeatPutObjectPart(t *testing.T) {
	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()

	var objLayer ObjectLayer
	var disks []string
	var err error
	var opts ObjectOptions

	objLayer, disks, err = prepareErasure16(ctx)
	if err != nil {
		t.Fatal(err)
	}

			return time.Now(), slowCaller(ctx)
		},
	)

	ctx, cancel := context.WithCancel(t.Context())
	cancel() // cancel context to test.

	_, err := cache.GetWithCtx(ctx)
	if !errors.Is(err, context.Canceled) {
		t.Fatalf("expected context.Canceled err, got %v", err)
	}

	ctx, cancel = context.WithCancel(t.Context())
	defer cancel()

	t1, err := cache.GetWithCtx(ctx)
	if err != nil {