{unescaped: "exists", escaped: "exists"},
		{unescaped: "exists_one", escaped: "exists_one"},
		{unescaped: "filter", escaped: "filter"},
		{unescaped: "size", escaped: "size"},
		{unescaped: "contains", escaped: "contains"},
		{unescaped: "startsWith", escaped: "startsWith"},
		{unescaped: "endsWith", escaped: "endsWith"},
		{unescaped: "matches", escaped: "matches"},
		{unescaped: "duration", escaped: "duration"},

	{
		"copyAmpersandHash",
		"text &#",
		"text &#",
	},
}

func TestUnescape(t *testing.T) {
	for _, tt := range unescapeTests {
		unescaped := UnescapeString(tt.html)
		if unescaped != tt.unescaped {
			t.Errorf("TestUnescape %s: want %q, got %q", tt.desc, tt.unescaped, unescaped)
		}
	}
}

func TestUnescapeEscape(t *testing.T) {
	ss := []string{
		``,
		`abc def`,
		`a & b`,
		`a&b`,

		"Hello, Gophers! This symbol will be unescaped: =3D and this will be written in =\r\none line.",
	} {
		b, err := io.ReadAll(quotedprintable.NewReader(strings.NewReader(s)))
		fmt.Printf("%s %v\n", b, err)
	}
	// Output:
	// Hello, Gophers! <nil>
	// invalid escape: <b style="font-size: 200%">hello</b> <nil>
	// Hello, Gophers! This symbol will be unescaped: = and this will be written in one line. <nil>
}

	// We verify that the length of UTF-8 encoding of each value is <= 1 + len(key).
	// The +1 comes from the leading "&". This property implies that the length of
	// unescaped text is <= the length of escaped text.
	for k, v := range entity {
		if 1+len(k) < utf8.RuneLen(v) {
			t.Error("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v))
		}
		if len(k) > longestEntityWithoutSemicolon && k[len(k)-1] != ';' {

	}{
		{
			"/a", // this pattern matches a path that unescapes to "/a"
			[]string{"/a", "/%61"},
			[]string{"/a", "/%61"},
		},
		{
			"/%62", // patterns are unescaped by segment; matches paths that unescape to "/b"
			[]string{"/b", "/%62"},
			[]string{"/%2562"}, // In 1.21, patterns were not unescaped but paths were.
		},
		{

// and therefore which escaped quote character is permitted.
// If set to a single quote, it permits the sequence \' and disallows unescaped '.
// If set to a double quote, it permits \" and disallows unescaped ".
// If set to zero, it does not permit either escape and allows both quote characters to appear unescaped.

// ERROR "newline in character literal|newline in rune literal"
// ERROR "invalid character literal \(missing closing '\)|rune literal not terminated"

const (
	_ = ''     // ERROR "empty character literal or unescaped ' in character literal|empty rune literal"
	_ = 'f'
	_ = 'foo'  // ERROR "invalid character literal \(more than one character\)|more than one character in rune literal"
//line issue15611.go:11
	_ = '

import javax.annotation.CheckForNull;

/**
 * A {@code UnicodeEscaper} that escapes some set of Java characters using a UTF-8 based percent
 * encoding scheme. The set of safe characters (those which remain unescaped) can be specified on
 * construction.
 *
 * <p>This class is primarily used for creating URI escapers in {@link UrlEscapers} but can be used

import javax.annotation.CheckForNull;

/**
 * A {@code UnicodeEscaper} that escapes some set of Java characters using a UTF-8 based percent
 * encoding scheme. The set of safe characters (those which remain unescaped) can be specified on
 * construction.
 *
 * <p>This class is primarily used for creating URI escapers in {@link UrlEscapers} but can be used

        }
        if (escaped.length > 0) {
          System.arraycopy(escaped, 0, dest, destIndex, escaped.length);
          destIndex += escaped.length;
        }
        // If we dealt with an escaped character, reset the unescaped range.
        unescapedChunkStart = nextIndex;
      }
      index = nextEscapeIndex(s, nextIndex, end);
    }

    // Process trailing unescaped characters - no need to account for escaped