{[]rune{1, 2, 3, 4}, []uint16{1, 2, 3, 4}},
	{[]rune{0xffff, 0x10000, 0x10001, 0x12345, 0x10ffff},
		[]uint16{0xffff, 0xd800, 0xdc00, 0xd800, 0xdc01, 0xd808, 0xdf45, 0xdbff, 0xdfff}},
	{[]rune{'a', 'b', 0xd7ff, 0xd800, 0xdfff, 0xe000, 0x110000, -1},
		[]uint16{'a', 'b', 0xd7ff, 0xfffd, 0xfffd, 0xe000, 0xfffd, 0xfffd}},
}

func TestEncode(t *testing.T) {
	for _, tt := range encodeTests {
		out := Encode(tt.in)

	maxRune         = '\U0010FFFF' // Maximum valid Unicode code point.
)

const (
	// 0xd800-0xdc00 encodes the high 10 bits of a pair.
	// 0xdc00-0xe000 encodes the low 10 bits of a pair.
	// the value is those 20 bits plus 0x10000.
	surr1 = 0xd800
	surr2 = 0xdc00
	surr3 = 0xe000

	surrSelf = 0x10000
)

// IsSurrogate reports whether the specified Unicode code point

byte('\'')
math.Float64frombits(0x7ff8000000000002)
math.Float32frombits(0x7fc00001)`,
		},
		{
			desc: "rune validation",
			in: `go test fuzz v1
rune(0)
rune(0x41)
rune(-1)
rune(0xfffd)
rune(0xd800)
rune(0x10ffff)
rune(0x110000)
`,
			want: `go test fuzz v1
rune('\x00')
rune('A')
int32(-1)
rune('�')
int32(55296)
rune('\U0010ffff')
int32(1114112)`,
		},
		{

import (
	"internal/filepathlite"
	"syscall"
	"time"
)

// These constants aren't in the syscall package, which is frozen.
// Values taken from golang.org/x/sys/unix.
const (
	_S_IFNAM  = 0x5000
	_S_IFDOOR = 0xd000
	_S_IFPORT = 0xe000
)

func fillFileStatFromSys(fs *fileStat, name string) {
	fs.name = filepathlite.Base(name)
	fs.size = fs.sys.Size
	fs.modTime = time.Unix(fs.sys.Mtim.Unix())

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package unix

import "syscall"

const (
	AT_EACCESS          = 0x100
	AT_FDCWD            = -0x64
	AT_REMOVEDIR        = 0x800
	AT_SYMLINK_NOFOLLOW = 0x200

	UTIME_OMIT = -0x2

	unlinkatTrap       uintptr = syscall.SYS_UNLINKAT
	openatTrap         uintptr = syscall.SYS_OPENAT

const (
	SYS_MPROTECT      = 10
	SYS_FCNTL         = 72
	SYS_EPOLL_CTL     = 233
	SYS_EPOLL_PWAIT   = 281
	SYS_EPOLL_CREATE1 = 291
	SYS_EPOLL_PWAIT2  = 441
	SYS_EVENTFD2      = 290

	EFD_NONBLOCK = 0x800
)

type EpollEvent struct {
	Events uint32
	Data   [8]byte // unaligned uintptr

const unlinkatTrap uintptr = syscall.SYS_UNLINKAT
const openatTrap uintptr = syscall.SYS_OPENAT
const fstatatTrap uintptr = syscall.SYS_FSTATAT

const (
	AT_EACCESS          = 0x100
	AT_FDCWD            = -0x64
	AT_REMOVEDIR        = 0x800
	AT_SYMLINK_NOFOLLOW = 0x200

	UTIME_OMIT = (1 << 30) - 2

const (
	SYS_FCNTL         = 55
	SYS_MPROTECT      = 125
	SYS_EPOLL_CTL     = 251
	SYS_EPOLL_PWAIT   = 346
	SYS_EPOLL_CREATE1 = 357
	SYS_EPOLL_PWAIT2  = 441
	SYS_EVENTFD2      = 356

	EFD_NONBLOCK = 0x800
)

type EpollEvent struct {
	Events uint32
	_pad   uint32
	Data   [8]byte // to match amd64

	// Pad struct to the max size in the kernel.
	_ [_sigev_max_size - unsafe.Sizeof(sigeventFields{})]byte
}

const (
	_O_RDONLY    = 0x0
	_O_WRONLY    = 0x1
	_O_CREAT     = 0x40
	_O_TRUNC     = 0x200
	_O_NONBLOCK  = 0x800
	_O_CLOEXEC   = 0x80000
	_SA_RESTORER = 0
)

type stackt struct {
	ss_sp    *byte
	ss_flags int32
	ss_size  uintptr
}

type sigcontext struct {
	psw_mask uint64

}

// created by cgo -cdefs and then converted to Go
// cgo -cdefs defs_linux.go defs3_linux.go

const (
	_O_RDONLY    = 0x0
	_O_WRONLY    = 0x1
	_O_CREAT     = 0x40
	_O_TRUNC     = 0x200
	_O_NONBLOCK  = 0x800
	_O_CLOEXEC   = 0x80000
	_SA_RESTORER = 0
)

type ptregs struct {
	gpr       [32]uint64
	nip       uint64
	msr       uint64
	orig_gpr3 uint64
	ctr       uint64
	link      uint64