33: "inter-lwp signal",
	34: "checkpoint Freeze",
	35: "checkpoint Thaw",
	36: "thread Cancellation",
	37: "resource Lost",
	38: "resource Control Exceeded",
	39: "reserved for JVM 1",
	40: "reserved for JVM 2",

}, {
	desc: "reserved namespace prefix -- all lower case",
	toks: []Token{
		StartElement{Name{"", "foo"}, []Attr{
			{Name{"http://www.w3.org/2001/xmlSchema-instance", "nil"}, "true"},
		}},
	},
	want: `<foo xmlns:_xmlSchema-instance="http://www.w3.org/2001/xmlSchema-instance" _xmlSchema-instance:nil="true">`,
}, {
	desc: "reserved namespace prefix -- all upper case",
	toks: []Token{

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,

	{35, "SIGTHAW", "checkpoint Thaw"},
	{36, "SIGCANCEL", "thread Cancellation"},
	{37, "SIGLOST", "resource Lost"},
	{38, "SIGXRES", "resource Control Exceeded"},
	{39, "SIGJVM1", "reserved for JVM 1"},
	{40, "SIGJVM2", "reserved for JVM 2"},
	{41, "SIGINFO", "information Request"},

# Copyright 2020 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

  //   - 'set': `X + Y` performs a union where the array positions of all elements in `X` are preserved and
  //     non-intersecting elements in `Y` are appended, retaining their partial order.
  //   - 'map': `X + Y` performs a merge where the array positions of all keys in `X` are preserved but the values
  //     are overwritten by values in `Y` when the key sets of `X` and `Y` intersect. Elements in `Y` with

	{92, "EILSEQ", "illegal byte sequence"},
	{93, "ENOATTR", "attribute not found"},
	{94, "EBADMSG", "bad message"},
	{95, "EMULTIHOP", "EMULTIHOP (Reserved)"},
	{96, "ENODATA", "no message available on STREAM"},
	{97, "ENOLINK", "ENOLINK (Reserved)"},
	{98, "ENOSR", "no STREAM resources"},
	{99, "ENOSTR", "not a STREAM"},
	{100, "EPROTO", "protocol error"},
	{101, "ETIME", "STREAM ioctl timeout"},

var TestAddr = [4]byte{0xc0, 0x00, 0x02, 0x01}

// Test address from 2001:db8::/32 block, reserved by RFC 3849 for documentation.
var TestAddr6 = [16]byte{0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}

func mustNewName(name string) dnsmessage.Name {
	nn, err := dnsmessage.NewName(name)
	if err != nil {
		panic(fmt.Sprint("creating name: ", err))
	}
	return nn
}

  //   - 'set': `X + Y` performs a union where the array positions of all elements in `X` are preserved and
  //     non-intersecting elements in `Y` are appended, retaining their partial order.
  //   - 'map': `X + Y` performs a merge where the array positions of all keys in `X` are preserved but the values
  //     are overwritten by values in `Y` when the key sets of `X` and `Y` intersect. Elements in `Y` with

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package dnsmessage provides a mostly RFC 1035 compliant implementation of
// DNS message packing and unpacking.
//
// The package also supports messages with Extension Mechanisms for DNS
// (EDNS(0)) as defined in RFC 6891.
//
// This implementation is designed to minimize heap allocations and avoid