if f == nil {
		panic("missing callback function")
	}
	f()
}

func testCallback(t *testing.T) {
	var x = false
	nestedCall(func() { x = true })
	if !x {
		t.Fatal("nestedCall did not call func")
	}
}

func testCallbackGC(t *testing.T) {
	nestedCall(runtime.GC)
}

func testCallbackPanic(t *testing.T) {
	// Make sure panic during callback unwinds properly.
	if lockedOSThread() {

// license that can be found in the LICENSE file.

package zip

import (
	"bytes"
	"compress/flate"
	"encoding/binary"
	"fmt"
	"hash/crc32"
	"io"
	"io/fs"
	"math/rand"
	"os"
	"strings"
	"testing"
	"testing/fstest"
	"time"
)

// TODO(adg): a more sophisticated test suite

type WriteTest struct {
	Name   string
	Data   []byte
	Method uint16
	Mode   fs.FileMode
}

	}
	return b[pagesize : 2*pagesize]
}

func TestEqualNearPageBoundary(t *testing.T) {
	t.Parallel()
	b := dangerousSlice(t)
	for i := range b {
		b[i] = 'A'
	}
	for i := 0; i <= len(b); i++ {
		Equal(b[:i], b[len(b)-i:])
		Equal(b[len(b)-i:], b[:i])
	}
}

func TestIndexByteNearPageBoundary(t *testing.T) {
	t.Parallel()
	b := dangerousSlice(t)
	for i := range b {
		idx := IndexByte(b[i:], 1)

// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package tar

import (
	"bytes"
	"io"
	"testing"
)

func FuzzReader(f *testing.F) {
	b := bytes.NewBuffer(nil)
	w := NewWriter(b)

  #define kSecKeyAlgorithmECDSASignatureDigestX962SHA1 foo()
  static SecKeyAlgorithm foo(void){return NULL;}
#endif
*/
import "C"
import "testing"

func f1() {
	C.SecKeyCreateSignature(0, C.kSecKeyAlgorithmECDSASignatureDigestX962SHA1, 0, nil)
}

// to generate a separate build ID for each package using cgo, and the
// linker concatenated them all.  We don't want that--we only want
// one.

import (
	"bytes"
	"debug/elf"
	"os"
	"testing"
)

func testBuildID(t *testing.T) {
	f, err := elf.Open("/proc/self/exe")
	if err != nil {
		if os.IsNotExist(err) {
			t.Skip("no /proc/self/exe")
		}
		t.Fatal("opening /proc/self/exe: ", err)
	}
	defer f.Close()

package tar

import (
	"bytes"
	"compress/bzip2"
	"crypto/md5"
	"errors"
	"fmt"
	"io"
	"math"
	"os"
	"path"
	"reflect"
	"strconv"
	"strings"
	"testing"
	"time"
)

func TestReader(t *testing.T) {
	vectors := []struct {
		file    string    // Test input file
		headers []*Header // Expected output headers
		chksums []string  // MD5 checksum of files, leave as nil if not checked

// is considered authoritative, but non-trivial improvements to that
// should be mirrored here.
func test1435(t *testing.T) {
	if syscall.Getuid() != 0 {
		t.Skip("skipping root only test")
	}
	if testing.Short() && testenv.Builder() != "" && os.Getenv("USER") == "swarming" {
		// The Go build system's swarming user is known not to be root.

func Test3775(t *testing.T)                  { test3775(t) }
func Test4029(t *testing.T)                  { test4029(t) }
func Test4339(t *testing.T)                  { test4339(t) }
func Test5227(t *testing.T)                  { test5227(t) }
func Test5242(t *testing.T)                  { test5242(t) }
func Test5337(t *testing.T)                  { test5337(t) }

	}
}

func TestGoBuildErrors(t *testing.T) {
	testErrors(t, "amd64", "buildtagerror")
}

func TestGenericErrors(t *testing.T) {
	testErrors(t, "amd64", "duperror")
}

func TestARMErrors(t *testing.T) {
	testErrors(t, "arm", "armerror")
}

func TestARM64EndToEnd(t *testing.T) {
	testEndToEnd(t, "arm64", "arm64")
}

func TestARM64Encoder(t *testing.T) {
	testEndToEnd(t, "arm64", "arm64enc")