"cgoInRange",
			"gclinkptr.ptr",
			"guintptr.ptr",
			"heapBitsSlice",
			"markBits.isMarked",
			"muintptr.ptr",
			"puintptr.ptr",
			"spanOf",
			"spanOfUnchecked",
			"typePointers.nextFast",
			"(*gcWork).putFast",
			"(*gcWork).tryGetFast",
			"(*guintptr).set",
			"(*markBits).advance",
			"(*mspan).allocBitsForIndex",
			"(*mspan).base",
			"(*mspan).markBitsForBase",

        boundary = "simple boundary",
        source = Buffer().writeUtf8(multipart),
      )

    parts.nextPart()!!
    val partMno = parts.nextPart()!!
    assertThat(partMno.body.readUtf8()).isEqualTo("mnop")

    assertThat(parts.nextPart()).isNull()
  }

  @Test fun `cannot read part after calling nextPart`() {
    val multipart =
      """
      |--simple boundary
      |
      |abcd
      |efgh

	}

nextTest:
	for i, testCase := range testCases {
		listener, errs := newHTTPListener(context.Background(),
			testCase.serverAddrs,
			TCPOptions{},
		)
		for _, err := range errs {
			if err != nil {
				if strings.Contains(err.Error(), "The requested address is not valid in its context") {
					// Ignore if IP is unbindable.
					continue nextTest
				}

	}
	p, err = mr2.NextPart()
	if err != nil {
		t.Fatalf("reading text/html part: %v", err)
	}
	if b, err := io.ReadAll(p); string(b) != "<b>body</b>\r\n" || err != nil {
		t.Fatalf("reading text/html part: got %q, %v", b, err)
	}

	p, err = mr2.NextPart()
	if err != io.EOF {
		t.Fatalf("final inner NextPart = %v; want io.EOF", err)
	}

// When there are no more parts, the error [io.EOF] is returned.
//
// Unlike [Reader.NextPart], it does not have special handling for
// "Content-Transfer-Encoding: quoted-printable".
func (r *Reader) NextRawPart() (*Part, error) {
	return r.nextPart(true, maxMIMEHeaderSize, maxMIMEHeaders())
}

func (r *Reader) nextPart(rawPart bool, maxMIMEHeaderSize, maxMIMEHeaders int64) (*Part, error) {
	if r.currentPart != nil {

		return true
	}
	return false
}

func (h *nextHist) addVar(text string) {
	l := len(h.texts)
	h.vars[l-1] = append(h.vars[l-1], text)
}

func invertMapSU8(hf2i map[string]uint8) map[uint8]string {
	hi2f := make(map[uint8]string)
	for hs, i := range hf2i {
		hi2f[i] = hs
	}
	return hi2f
}

func (h *nextHist) equals(k *nextHist) bool {
	if len(h.f2i) != len(k.f2i) {
		return false
	}

    taskRunner.assertThreadHoldsLock()

    val index = serialTaskQueue.indexOfFirst { it.isReady() }
    if (index == -1) return null

    val nextTask = serialTaskQueue.removeAt(index)
    currentTask = nextTask
    contextSwitchCount++
    nextTask.start()
    return nextTask
  }

  private interface SerialTask {
    /** Returns true if this task is ready to start. */
    fun isReady() = true

          // Task must be null, since each execution on this executor can only produce one more
          // execution.
          checkState(submittingTaskQueue.nextTask == null);
          submittingTaskQueue.nextTask = task;
          // requireNonNull(delegate) is safe for reasons similar to requireNonNull(sequencer).
          submittingTaskQueue.nextExecutor = requireNonNull(delegate);
          delegate = null;

          // Task must be null, since each execution on this executor can only produce one more
          // execution.
          checkState(submittingTaskQueue.nextTask == null);
          submittingTaskQueue.nextTask = task;
          // requireNonNull(delegate) is safe for reasons similar to requireNonNull(sequencer).
          submittingTaskQueue.nextExecutor = requireNonNull(delegate);
          delegate = null;

	dups := make(map[string][]string)
	for name, addr := range want {
		if _, ok := dups[addr]; !ok {
			dups[addr] = make([]string, 0)
		}
		dups[addr] = append(dups[addr], name)
	}

nextWant:
	for name, wantAddr := range want {
		if haveAddr, ok := have[name]; ok {
			if haveAddr != wantAddr {
				t.Errorf("unexpected MAC address for %q - %v, want %v", name, haveAddr, wantAddr)
			}
			continue