}
		if !Equal(actual, tc.out) {
			t.Errorf("%s(%q) = %q; want %q", funcName, tc.in, actual, tc.out)
		}
	}
}

func tenRunes(r rune) string {
	runes := make([]rune, 10)
	for i := range runes {
		runes[i] = r
	}
	return string(runes)
}

// User-defined self-inverse mapping function
func rot13(r rune) rune {
	const step = 13
	if r >= 'a' && r <= 'z' {

	{"%+q", "abc\xffdef", `"abc\xffdef"`},
	{"%#q", "abc\xffdef", `"abc\xffdef"`},
	{"%#+q", "abc\xffdef", `"abc\xffdef"`},
	// Runes that are not printable.
	{"%q", "\U0010ffff", `"\U0010ffff"`},
	{"%+q", "\U0010ffff", `"\U0010ffff"`},
	{"%#q", "\U0010ffff", "`􏿿`"},
	{"%#+q", "\U0010ffff", "`􏿿`"},
	// Runes that are not valid.
	{"%q", string(rune(0x110000)), `"�"`},
	{"%+q", string(rune(0x110000)), `"\ufffd"`},

package norm

import (
	"fmt"
	"unicode/utf8"
)

// MaxSegmentSize is the maximum size of a byte buffer needed to consider any
// sequence of starter and non-starter runes for the purpose of normalization.
const MaxSegmentSize = maxByteBufferSize

// An Iter iterates over a string or byte slice, while normalizing it
// to a given Form.
type Iter struct {
	rb     reorderBuffer

	}
	for _, str := range tests {
		got := exactly16Bytes(str)
		if len(got) != 16 {
			t.Errorf("exactly16Bytes(%q) is %q, length %d", str, got, len(got))
		}
		// Make sure it is full runes.
		for _, c := range got {
			if c == utf8.RuneError {
				t.Errorf("exactly16Bytes(%q) is %q, has partial rune", str, got)
			}
		}
	}

		// Strictly speaking, control chars include the range [0x7f, 0x9f], not just
		// [0x00, 0x1f], but in practice, we ignore the multi-byte control characters
		// as it is simpler to inspect the tag's bytes than the tag's runes.
		i = 0
		for i < len(tag) && tag[i] > ' ' && tag[i] != ':' && tag[i] != '"' && tag[i] != 0x7f {
			i++
		}
		if i == 0 {
			return errTagKeySyntax
		}
		if i+1 >= len(tag) || tag[i] != ':' {

		}()
		if got := <-didPanic; got != tt.wantPanic {
			t.Errorf("%s: panicked = %v; want %v", tt.name, got, tt.wantPanic)
		}
	}
}

func TestBuilderWriteInvalidRune(t *testing.T) {
	// Invalid runes, including negative ones, should be written as
	// utf8.RuneError.
	for _, r := range []rune{-1, utf8.MaxRune + 1} {
		var b Builder
		b.WriteRune(r)
		check(t, &b, "\uFFFD")
	}
}

	0xee60,
	0xee63,
	0xee6b,
	0xee73,
	0xee78,
	0xee7d,
	0xee7f,
	0xee8a,
	0xeea4,
	0xeeaa,
	0xf0c0,
	0xf0d0,
	0xfabe,
	0xfb93,
}

// isGraphic lists the graphic runes not matched by IsPrint.
var isGraphic = []uint16{
	0x00a0,
	0x1680,
	0x2000,
	0x2001,
	0x2002,
	0x2003,
	0x2004,
	0x2005,
	0x2006,
	0x2007,
	0x2008,
	0x2009,
	0x200a,

		if s.MaxLength() != nil {
			// multiply the user-provided max length by 4 in the case of an otherwise-untyped string
			// we do this because the OpenAPIv3 spec indicates that maxLength is specified in runes/code points,
			// but we need to reason about length for things like request size, so we use bytes in this code (and an individual
			// unicode code point can be up to 4 bytes long)

	{"\u263a", `"☺"`, `"\u263a"`, `"☺"`},
	{"\U0010ffff", `"\U0010ffff"`, `"\U0010ffff"`, `"\U0010ffff"`},
	{"\x04", `"\x04"`, `"\x04"`, `"\x04"`},
	// Some non-printable but graphic runes. Final column is double-quoted.
	{"!\u00a0!\u2000!\u3000!", `"!\u00a0!\u2000!\u3000!"`, `"!\u00a0!\u2000!\u3000!"`, "\"!\u00a0!\u2000!\u3000!\""},
	{"\x7f", `"\x7f"`, `"\x7f"`, `"\x7f"`},
}

func TestQuote(t *testing.T) {

	// Example:
	//   <a href = /search?q=foo>
	//   <href=foo>
	//   <form na<e=...>
	//   <option selected<
	// Discussion:
	//   This is often due to a typo in an HTML element, but some runes
	//   are banned in tag names, attribute names, and unquoted attribute
	//   values because they can tickle parser ambiguities.
	//   Quoting all attributes is the best policy.
	ErrBadHTML