j := index(buf, 'x')
			if j != n-1 {
				b.Fatal("bad index", j)
			}
		}
		buf[n-1] = '\x00'
	}
}

func bmIndexRune(index func([]byte, rune) int) func(b *testing.B, n int) {
	return func(b *testing.B, n int) {
		buf := bmbuf[0:n]
		utf8.EncodeRune(buf[n-3:], '世')
		for i := 0; i < b.N; i++ {
			j := index(buf, '世')
			if j != n-3 {
				b.Fatal("bad index", j)
			}
		}
		buf[n-3] = '\x00'

import (
	"fmt"
	"testing"
)

func Benchmark_bucketMetacache_findCache(b *testing.B) {
	bm := newBucketMetacache("", false)
	const elements = 50000
	const paths = 100
	if elements%paths != 0 {
		b.Fatal("elements must be divisible by the number of paths")
	}
	var pathNames [paths]string
	for i := range pathNames[:] {
		pathNames[i] = fmt.Sprintf("prefix/%d", i)
	}
	for i := range elements {

func testServicesCmdHandler(cmd cmdType, t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	adminTestBed, err := prepareAdminErasureTestBed(ctx)
	if err != nil {
		t.Fatal("Failed to initialize a single node Erasure backend for admin handler tests.", err)
	}
	defer adminTestBed.TearDown()

	// Initialize admin peers to make admin RPC calls. Note: In a

	var i int
	r := bytes.NewReader(data)
	scanner := newScanner(r)
	for scanner.pos < atomic.LoadInt64(&scanner.end) {
		c := scanner.next()
		if scanner.readerErr != nil {
			t.Fatal(scanner.readerErr)
		}
		if c != data[i] {
			t.Fatalf("expected %s, got %s", string(data[i]), string(c))
		}
		t.Logf("pos=%d remaining=%d (%s)", i, r.Len(), string(c))
		i++
	}
}

type mockReader struct {

// lock prematurely.
var lock *os.File

func main() {
	log.SetFlags(0)
	log.SetPrefix("go_ios_exec: ")
	if debug {
		log.Println(strings.Join(os.Args, " "))
	}
	if len(os.Args) < 2 {
		log.Fatal("usage: go_ios_exec a.out")
	}

	// For compatibility with the old builders, use a fallback bundle ID
	bundleID = "golang.gotest"

	exitCode, err := runMain()
	if err != nil {
		log.Fatalf("%v\n", err)
	}

		}

		if !testCase.expectErr {
			data, err := storage.ReadAll(t.Context(), testCase.volumeName, testCase.objectName)
			if err != nil {
				t.Fatal(err)
			}

			if !bytes.Equal(data, testCase.data) {
				t.Fatalf("case %v: expected %v, got %v", i+1, testCase.data, data)
			}
		}
	}
}

	w.WriteHeader(http.StatusOK)
	json.NewEncoder(w).Encode(rsp)
	return
}

func main() {
	http.HandleFunc("/", mainHandler)

	log.Print("Listening on :8081")
	log.Fatal(http.ListenAndServe(":8081", nil))

	t.Skip("long test skip it")

	ctx := t.Context()

	for i := range 10000 {
		nsLk := newNSLock(false)

		// lk1; ref=1
		if !nsLk.lock(ctx, "volume", "path", "source", "opsID", false, time.Second) {
			t.Fatal("failed to acquire lock")
		}

		// lk2
		lk2ch := make(chan struct{})
		go func() {
			defer close(lk2ch)
			nsLk.lock(ctx, "volume", "path", "source", "opsID", false, 1*time.Millisecond)
		}()

	}
	// Prepare a slice of 5MiB with random data.
	data := make([]byte, 5*humanize.MiByte)
	length := int64(len(data))
	_, err = rand.Read(data)
	if err != nil {
		t.Fatal(err)
	}

	writers := make([]io.Writer, len(disks))
	for i, disk := range disks {
		if disk == nil {
			continue
		}

		b.Run(tt.name, func(b *testing.B) {
			b.ReportAllocs()
			for b.Loop() {
				ts, err := parsePAXTime(tt.in)
				if (err == nil) != tt.ok {
					if err != nil {
						b.Fatal(err)
					}
					b.Fatal("expected error")
				}
				if !ts.Equal(tt.want) {
					b.Fatalf("time mismatch: got %v, want %v", ts, tt.want)
				}
			}
		})
	}