t.Fatal(err)
	}
	f, err := os.Open(filepath.Join(d, "out"))
	if err != nil {
		t.Fatal(err)
	}
	m, _ := f.Stat()
	// Mode should be copied
	assert.Equal(t, m.Mode(), 0o750)

	body, _ := io.ReadAll(f)
	// Contents should be copied
	assert.Equal(t, body, []byte("hello world"))
}

func TestCopy(t *testing.T) {
	copyTest(t, Copy)
}

func TestAtomicCopy(t *testing.T) {
	copyTest(t, AtomicCopy)
}

		t.Fatalf("Encoder.Write(raw) = %d, %v want %d, nil", nn, err, n)
	}
	err = w.Close()
	if err != nil {
		t.Fatalf("Encoder.Close() = %v want nil", err)
	}
	decoded, err := io.ReadAll(NewDecoder(encoded))
	if err != nil {
		t.Fatalf("io.ReadAll(NewDecoder(...)): %v", err)
	}

	if !bytes.Equal(raw, decoded) {
		var i int
		for i = 0; i < len(decoded) && i < len(raw); i++ {
			if decoded[i] != raw[i] {
				break

"Rob";"Pike";rob
# lines beginning with a # character are ignored
Ken;Thompson;ken
"Robert";"Griesemer";"gri"
`
	r := csv.NewReader(strings.NewReader(in))
	r.Comma = ';'
	r.Comment = '#'

	records, err := r.ReadAll()
	if err != nil {
		log.Fatal(err)
	}

	fmt.Print(records)
	// Output:
	// [[first_name last_name username] [Rob Pike rob] [Ken Thompson ken] [Robert Griesemer gri]]
}

func ExampleReader_ReadAll() {

	"io"
	"os"
	"os/exec"
	"os/exec/internal/fdtest"
	"runtime"
	"strings"
)

func main() {
	fd3 := os.NewFile(3, "fd3")
	defer fd3.Close()

	bs, err := io.ReadAll(fd3)
	if err != nil {
		fmt.Printf("ReadAll from fd 3: %v\n", err)
		os.Exit(1)
	}

	// Now verify that there are no other open fds.
	// stdin == 0
	// stdout == 1
	// stderr == 2
	// descriptor from parent == 3

	req := httptest.NewRequest("GET", "http://apiserver.com/apis/flowcontrol.apiserver.k8s.io/v1beta1", nil)
	rw := httptest.NewRecorder()

	target.ServeHTTP(rw, req)
	resp := rw.Result()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		t.Fatal(err)
	}
	bodyStr := strings.TrimSuffix(string(body), "\n")

	if resp.StatusCode != 404 {
		t.Fatalf("unexpected status code %d, expected 503", resp.StatusCode)
	}

package mmap

import (
	"io"
	"os"
)

// mmapFile on other systems doesn't mmap the file. It just reads everything.
func mmapFile(f *os.File, _ *Data) (Data, error) {
	b, err := io.ReadAll(f)
	if err != nil {
		return Data{}, err
	}
	return Data{f, b, nil}, nil
}

func munmapFile(d Data) error {
	return nil

			r := NewReader(bytes.NewReader(in))
			r.Comma = tt.Comma
			r.Comment = tt.Comment
			r.LazyQuotes = tt.LazyQuotes
			r.TrimLeadingSpace = tt.TrimLeadingSpace

			records, err := r.ReadAll()
			if err != nil {
				continue
			}
			t.Logf("first records = %#v", records)

			buf.Reset()
			w := NewWriter(buf)
			w.Comma = tt.Comma
			err = w.WriteAll(records)
			if err != nil {

        try {
            byte[] header = new byte[10];
            instr.readFully(header);
            if (!new String(header, "utf-8").equals("!<symlink>")) {
                return null;
            }
            byte[] pathContent = new byte[(int) symlink.length() - 11];
            instr.readFully(pathContent);
            pathStr = new String(pathContent, "utf-8");
        } finally {

	res, err := http.Get(ts.URL)
	if err != nil {
		t.Fatal(err)
	}
	got, err := io.ReadAll(res.Body)
	res.Body.Close()
	if err != nil {
		t.Fatal(err)
	}
	if string(got) != "hello" {
		t.Fatalf("got %q, want hello", string(got))
	}

	ts.Close()

	res, err = http.Get(ts.URL)
	if err == nil {
		body, _ := io.ReadAll(res.Body)
		t.Fatalf("Unexpected response after close: %v, %v, %s", res.Status, res.Header, body)

//go:build (js && wasm) || wasip1 || plan9

package mmap

import (
	"io"
	"os"
)

// mmapFile on other systems doesn't mmap the file. It just reads everything.
func mmapFile(f *os.File) (Data, error) {
	b, err := io.ReadAll(f)
	if err != nil {
		return Data{}, err
	}
	return Data{f, b}, nil