}

func TestWriterReset(t *testing.T) {
	var buf1, buf2, buf3, buf4, buf5 strings.Builder
	w := NewWriter(&buf1)
	w.WriteString("foo")

	w.Reset(&buf2) // and not flushed
	w.WriteString("bar")
	w.Flush()
	if buf1.String() != "" {
		t.Errorf("buf1 = %q; want empty", buf1.String())
	}
	if buf2.String() != "bar" {
		t.Errorf("buf2 = %q; want bar", buf2.String())
	}

			if j != n-3 {
				b.Fatal("bad index", j)
			}
		}
		buf[n-3] = '\x00'
		buf[n-2] = '\x00'
		buf[n-1] = '\x00'
	}
}

func BenchmarkEqual(b *testing.B) {
	b.Run("0", func(b *testing.B) {
		var buf [4]byte
		buf1 := buf[0:0]
		buf2 := buf[1:1]
		for i := 0; i < b.N; i++ {
			eq := Equal(buf1, buf2)
			if !eq {
				b.Fatal("bad equal")
			}
		}
	})

                MessageBuilder buff = MessageUtils.builder();
                buff.a("Message styles: ");
                buff.trace("trace").a(' ');
                buff.debug("debug").a(' ');
                buff.info("info").a(' ');
                buff.warning("warning").a(' ');
                buff.error("error").a(' ');
                buff.success("success").a(' ');

		// We use 2 buffers, so we always have a full buffer of input.
		pool := globalBytePoolCap.Load()
		bufA := pool.Get()
		bufB := pool.Get()
		defer pool.Put(bufA)
		defer pool.Put(bufB)
		ra, err := readahead.NewReaderBuffer(data, [][]byte{bufA[:fi.Erasure.BlockSize], bufB[:fi.Erasure.BlockSize]})
		if err == nil {
			toEncode = ra
			defer ra.Close()
		}
		bugLogIf(ctx, err)
	}

	stat, err := f.Stat()
	if err != nil {
		buf, err = io.ReadAll(f)
		return buf, dmTime, osErrToFileErr(err)
	}
	if stat.IsDir() {
		return nil, dmTime, errFileNotFound
	}

	// Read into appropriate buffer.
	sz := stat.Size()
	if sz <= metaDataReadDefault {
		buf = metaDataPoolGet()
		buf = buf[:sz]
	} else {
		buf = make([]byte, sz)
	}

	// Read file...

    assertThat(peer.takeFrame().type).isEqualTo(Http2.TYPE_DATA)
    assertThat(peer.frameCount()).isEqualTo(5)
  }

  @Test fun maxFrameSizeHonored() {
    val buff = ByteArray(peer.maxOutboundDataLength() + 1)
    buff.fill('*'.code.toByte())

    // Write the mocking script.
    peer.sendFrame().settings(Settings())
    peer.acceptFrame() // ACK
    peer.acceptFrame() // SYN_STREAM

func sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) {
	var _p0 unsafe.Pointer
	if len(buf) > 0 {
		_p0 = unsafe.Pointer(&buf[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	runtime.EnterSyscall()
	r0, e2, e1 := CallLeFuncWithErr(GetZosLibVec()+SYS___SENDTO_A<<4, uintptr(s), uintptr(_p0), uintptr(len(buf)), uintptr(flags), uintptr(to), uintptr(addrlen))

		t.Fatal(err)
	}
	defer os.Remove(filepath)

	var buf strings.Builder
	child := testenv.Command(t, "strace", "-f", "-q", os.Args[0], "-test.run=^TestLinuxSendfileChild$")
	child.ExtraFiles = append(child.ExtraFiles, lnf)
	child.Env = append([]string{"GO_WANT_HELPER_PROCESS=1"}, os.Environ()...)
	child.Stdout = &buf
	child.Stderr = &buf
	if err := child.Start(); err != nil {

func pedanticReadAll(r io.Reader) (b []byte, err error) {
	var bufa [64]byte
	buf := bufa[:]
	for {
		n, err := r.Read(buf)
		if n == 0 && err == nil {
			return nil, fmt.Errorf("Read: n=0 with err=nil")
		}
		b = append(b, buf[:n]...)
		if err == io.EOF {
			n, err := r.Read(buf)
			if n != 0 || err != io.EOF {
				return nil, fmt.Errorf("Read: n=%d err=%#v after EOF", n, err)
			}

	return
}

func Getwd() (wd string, err error) {
	var buf [PathMax]byte
	n, err := Getcwd(buf[0:])
	if err != nil {
		return "", err
	}
	// Getcwd returns the number of bytes written to buf, including the NUL.
	if n < 1 || n > len(buf) || buf[n-1] != 0 {
		return "", EINVAL
	}
	return string(buf[0 : n-1]), nil
}

func Getgroups() (gids []int, err error) {
	n, err := getgroups(0, nil)