}
	t.Parallel()
	const filename = "huge.txt"
	gen := func(wantOff uint64) func(*Writer) {
		return func(w *Writer) {
			w.testHookCloseSizeOffset = func(size, off uint64) {
				if off != wantOff {
					t.Errorf("central directory offset = %d (%x); want %d", off, off, wantOff)
				}
			}
			f, err := w.CreateHeader(&FileHeader{
				Name:   filename,
				Method: Store,
			})
			if err != nil {

	if err == nil {
		t.Errorf("archive/zip.NewReader: expected error when negative size is passed")
	}
}

func messWith(fileName string, corrupter func(b []byte)) (r io.ReaderAt, size int64) {
	data, err := os.ReadFile(filepath.Join("testdata", fileName))
	if err != nil {
		panic("Error reading " + fileName + ": " + err.Error())
	}
	corrupter(data)
	return bytes.NewReader(data), int64(len(data))
}

	directory64EndSignature  = 0x06064b50
	dataDescriptorSignature  = 0x08074b50 // de-facto standard; required by OS X Finder
	fileHeaderLen            = 30         // + filename + extra
	directoryHeaderLen       = 46         // + filename + extra + comment
	directoryEndLen          = 22         // + comment
	dataDescriptorLen        = 16         // four uint32: descriptor signature, crc32, compressed size, size

func (w *Walker) parseFile(dir, file string) (*ast.File, error) {
	filename := filepath.Join(dir, file)
	if f := parsedFileCache[filename]; f != nil {
		return f, nil
	}

	f, err := parser.ParseFile(fset, filename, nil, parser.ParseComments)
	if err != nil {
		return nil, err
	}
	parsedFileCache[filename] = f

	return f, nil
}

	if s.pos >= len(s.tokens) {
		return scanner.EOF
	}
	return s.tokens[s.pos].ScanToken
}

func (s *Slice) Text() string {
	return s.tokens[s.pos].text
}

func (s *Slice) File() string {
	return s.base.Filename()
}

func (s *Slice) Base() *src.PosBase {
	return s.base
}

func (s *Slice) SetBase(base *src.PosBase) {
	// Cannot happen because we only have slices of already-scanned text,
	// but be prepared.

		}
		if err != nil {
			in.Error("#include:", err)
		}
	}
	in.Push(NewTokenizer(name, fd, fd))
}

// #line processing.
func (in *Input) line() {
	// Only need to handle Plan 9 format: #line 337 "filename"
	tok := in.Stack.Next()
	if tok != scanner.Int {
		in.expectText("expected line number after #line")
	}
	line, err := strconv.Atoi(in.Stack.Text())
	if err != nil {

	case TypeReg, TypeChar, TypeBlock, TypeFifo, TypeGNUSparse:
		// Exclude TypeLink and TypeSymlink, since they may reference directories.
		if strings.HasSuffix(h.Name, "/") {
			return FormatUnknown, nil, headerError{"filename may not have trailing slash"}
		}
	case TypeXHeader, TypeGNULongName, TypeGNULongLink:
		return FormatUnknown, nil, headerError{"cannot manually encode TypeXHeader, TypeGNULongName, or TypeGNULongLink headers"}

// It uses default values for all of the other fields (as BSD and GNU tar does).
func (tw *Writer) writeRawFile(name, data string, flag byte, format Format) error {
	tw.blk.reset()

	// Best effort for the filename.
	name = toASCII(name)
	if len(name) > nameSize {
		name = name[:nameSize]
	}
	name = strings.TrimRight(name, "/")

	var f formatter
	v7 := tw.blk.toV7()
	v7.typeFlag()[0] = flag

LiteralValue  = "{" [ ElementList [ "," ] ] "}" .
ElementList   = KeyedElement { "," KeyedElement } .
KeyedElement  = [ Key ":" ] Element .
Key           = FieldName | Expression | LiteralValue .
FieldName     = identifier .
Element       = Expression | LiteralValue .
</pre>

<p>
The LiteralType's underlying type must be a struct, array, slice, or map type

		t.Fatal("Couldn't recover long name")
	}
}

func TestValidTypeflagWithPAXHeader(t *testing.T) {
	var buffer bytes.Buffer
	tw := NewWriter(&buffer)

	fileName := strings.Repeat("ab", 100)

	hdr := &Header{
		Name:     fileName,
		Size:     4,
		Typeflag: 0,
	}
	if err := tw.WriteHeader(hdr); err != nil {
		t.Fatalf("Failed to write header: %s", err)
	}