class LineEndingContentFixture {
    public static final byte[] PNG_CONTENT = [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a] as byte[]
    public static final byte[] JPG_CONTENT = [0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0xff, 0xda] as byte[]
    public static final byte[] CLASS_FILE_CONTENT = [0xca, 0xfe, 0xba, 0xbe, 0x00, 0x00, 0x00, 0x37, 0x0a, 0x00] as byte[]

    static String textWithLineEndings(String eol) {

	fmt.Println(utf8.RuneStart(buf[1]))
	fmt.Println(utf8.RuneStart(buf[2]))
	// Output:
	// true
	// true
	// false
}

func ExampleValid() {
	valid := []byte("Hello, 世界")
	invalid := []byte{0xff, 0xfe, 0xfd}

	fmt.Println(utf8.Valid(valid))
	fmt.Println(utf8.Valid(invalid))
	// Output:
	// true
	// false
}

func ExampleValidRune() {
	valid := 'a'
	invalid := rune(0xfffffff)

		fail: true,
	}, {
		m:    []byte{0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
		b:    []byte{0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
		fail: true,
	}, {
		m:    []byte{0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
		b:    []byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe},
		fail: true,
	}, {
		m:    []byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd},

			switch sa := sa.(type) {
			case *syscall.SockaddrInet4:
				ip = IPv4(sa.Addr[0], sa.Addr[1], sa.Addr[2], sa.Addr[3])
			case *syscall.SockaddrInet6:
				ip = make(IP, IPv6len)
				copy(ip, sa.Addr[:])
				if ip[0] == 0xfe && ip[1] == 0xc0 {
					// fec0/10 IPv6 addresses are site local anycast DNS
					// addresses Microsoft sets by default if no other
					// IPv6 DNS address is set. Site local anycast is
					// deprecated since 2004, see

	BYTE $0x4d; BYTE $0x5d; BYTE $0x5c; BYTE $0x4e
	BYTE $0x6b; BYTE $0x60; BYTE $0x4b; BYTE $0x61
	BYTE $0xf0; BYTE $0xf1; BYTE $0xf2; BYTE $0xf3
	BYTE $0xf4; BYTE $0xf5; BYTE $0xf6; BYTE $0xf7
	BYTE $0xf8; BYTE $0xf9; BYTE $0x7a; BYTE $0x5e
	BYTE $0x4c; BYTE $0x7e; BYTE $0x6e; BYTE $0x6f
	BYTE $0x7c; BYTE $0xc1; BYTE $0xc2; BYTE $0xc3
	BYTE $0xc4; BYTE $0xc5; BYTE $0xc6; BYTE $0xc7
	BYTE $0xc8; BYTE $0xc9; BYTE $0xd1; BYTE $0xd2

var (
	goBuildPrefix = []byte("\xff Go build ID: \"")
	goBuildEnd    = []byte("\"\n \xff")

	elfPrefix = []byte("\x7fELF")

	machoPrefixes = [][]byte{
		{0xfe, 0xed, 0xfa, 0xce},
		{0xfe, 0xed, 0xfa, 0xcf},
		{0xce, 0xfa, 0xed, 0xfe},
		{0xcf, 0xfa, 0xed, 0xfe},
	}
)

var readSize = 32 * 1024 // changed for testing

// readBinary reads the build ID from a binary.
//

	0x6f, 0xc8, 0x3f, 0xb8, 0x66, 0x29, 0x48, 0xf6, 0x38, 0x0f, 0x1e, 0x78, 0x08, 0x57, 0x1c, 0xd8,
	0x92, 0x01, 0xbb, 0x94, 0x06, 0xba, 0xb7, 0x7e, 0x5b, 0xd5, 0xb9, 0xf7, 0x6f, 0x88, 0x46, 0x9d,
	0x29, 0x21, 0x4d, 0x1e, 0x4e, 0x1c, 0xed, 0x4c, 0xb3, 0xfd, 0x7c, 0x3b, 0xf0, 0xec, 0x76, 0xd0,
	0xfe, 0x6a, 0x16, 0xdf, 0xc6, 0xee, 0x9d, 0xdf, 0x92, 0xc0, 0x95, 0xe9, 0xa1, 0xe1, 0xff, 0x51,

package main

import (
	"fmt"
	"os"
)

func main() {
	var s = "\xc2\xff"
	var t = "\xd0\xfe"
	var u = "\xab\x00\xfc"

	if len(s) != 2 || s[0] != 0xc2 || s[1] != 0xff ||
		len(t) != 2 || t[0] != 0xd0 || t[1] != 0xfe ||
		len(u) != 3 || u[0] != 0xab || u[1] != 0x00 || u[2] != 0xfc {
		println("BUG: non-UTF-8 string mangled")
		os.Exit(2)
	}

	fmt.Print(`
package main

        "12345678"                         | ByteArrayBackedHashCode | 4      | 0x78563412 | toBytes(0x12, 0x34, 0x56, 0x78)
        "CAFEBABE"                         | ByteArrayBackedHashCode | 4      | 0xBEBAFECA | toBytes(0xCA, 0xFE, 0xBA, 0xBE)
        "abbaabba"                         | ByteArrayBackedHashCode | 4      | 0xBAABBAAB | toBytes([0xAB, 0xBA] * 2)

			0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6,
			0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde,
			0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6,
			0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee,
			0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6,
			0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe,
			0xff, 0x00, 0x92, 0xfd, 0x01, 0x00, 0x00, 0xff,
			0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00,