if err != nil {
			f.Fatalf("failed to construct writer: %s", err)
		}
		_, err = w.Write(inp)
		if err != nil {
			f.Fatalf("failed to write: %s", err)
		}
		f.Add(b.Bytes())
	}

	testdata, err := os.ReadDir("testdata")
	if err != nil {
		f.Fatalf("failed to read testdata directory: %s", err)
	}
	for _, de := range testdata {
		if de.IsDir() {
			continue
		}

			return true, nil
		}
	}
	return false, nil
}

var valRe = regexp.MustCompile(`^\[\]byte\(([^)]+)\)$`)

func main() {
	dir, expected := os.Args[1], os.Args[2]
	ents, err := os.ReadDir(dir)
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	for _, ent := range ents {
		name := filepath.Join(dir, ent.Name())
		if good, err := checkFile(name, expected); err != nil {

	for _, tc := range testCases {
		dir, want := tc.dir, tc.want
		infos, err := ReadDir(dir)
		if err != nil {
			t.Errorf("ReadDir(%q): %v", dir, err)
			continue
		}
		// Sorted diff of want and infos.
		for len(infos) > 0 || len(want) > 0 {
			switch {
			case len(want) == 0 || len(infos) > 0 && infos[0].Name() < want[0].name:

	if err != nil {
		t.Fatalf("go list: %v\n%s", err, out)
	}

	seen := map[string]bool{}
	for _, dir := range strings.Split(string(out), "\n") {
		if dir == "" {
			continue
		}
		files, err := os.ReadDir(dir)
		if err != nil {
			t.Fatal(err)
		}
		for _, file := range files {
			name := file.Name()
			if !strings.HasSuffix(name, ".go") || strings.HasSuffix(name, "_test.go") {
				continue
			}

		}
	}
	if !foundHTTP {
		t.Errorf("json missing test import net/http (%q)", testImports)
	}
}
func TestScanDir(t *testing.T) {
	testenv.MustHaveGoBuild(t)

	dirs, err := os.ReadDir("testdata")
	if err != nil {
		t.Fatal(err)
	}
	for _, dir := range dirs {
		if !dir.IsDir() || strings.HasPrefix(dir.Name(), ".") {
			continue
		}
		t.Run(dir.Name(), func(t *testing.T) {

n uint32 - number of packages
for each rawPackage:
	dirname - string offset
	package - offset where package begins
for each rawPackage:
	error uint32 - string offset // error is produced by fsys.ReadDir or fmt.Errorf
	dir uint32 - string offset (directory path relative to module root)
	len(sourceFiles) uint32
	sourceFiles [n]uint32 - offset to source file (relative to start of index file)
	for each sourceFile:

	if !found {
		return "", false
	}
	return filepath.ToSlash(after), true
}

// readDir calls ctxt.ReadDir (if not nil) or else os.ReadDir.
func (ctxt *Context) readDir(path string) ([]fs.DirEntry, error) {
	// TODO: add a fs.DirEntry version of Context.ReadDir
	if f := ctxt.ReadDir; f != nil {
		fis, err := f(path)
		if err != nil {
			return nil, err
		}
		des := make([]fs.DirEntry, len(fis))

	_ "k8s.io/kubernetes/pkg/apis/core/install"
	"k8s.io/mount-utils"
)

func validateDirExists(dir string) error {
	_, err := os.ReadDir(dir)
	if err != nil {
		return err
	}
	return nil
}

func validateDirNotExists(dir string) error {
	_, err := os.ReadDir(dir)
	if os.IsNotExist(err) {
		return nil
	}
	if err != nil {
		return err
	}
	return fmt.Errorf("dir %q still exists", dir)
}

	}

	size += info.Size()

	if !info.IsDir() {
		return size, nil
	}

	dir, err := os.Open(currPath)
	if err != nil {
		return size, err
	}
	defer dir.Close()

	files, err := dir.Readdir(-1)
	if err != nil {
		return size, err
	}

	for _, file := range files {
		if file.IsDir() {
			s, err := diskUsage(filepath.Join(currPath, file.Name()), file)
			if err != nil {
				return size, err

			t.Error("minimize this!")
		}
	})
}
-- check_file_count.go --
// +build ignore

package main

import (
	"fmt"
	"os"
	"strconv"
)

func main() {
	dir, err := os.ReadDir(os.Args[1])
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	got := len(dir)
	want, _ := strconv.Atoi(os.Args[2])
	if got != want {