"k8s.io/klog/v2"
	testclock "k8s.io/utils/clock/testing"
)

const (
	ddtRangeCentiPeriods  = 300
	ddtOffsetCentiPeriods = 50
	numIterations         = 100
)

var errMetricNotFound = errors.New("not found")

func TestTimingRatioHistogramVecElementSimple(t *testing.T) {
	testHistogramName := "vec_element_simple"
	t0 := time.Now()
	clk := testclock.NewFakePassiveClock(t0)
	buckets := []float64{0, 1}

See the License for the specific language governing permissions and
limitations under the License.
*/

package request

import (
	"reflect"
	"testing"
	"time"

	"github.com/google/go-cmp/cmp"
	testclock "k8s.io/utils/clock/testing"
)

func TestStorageObjectCountTracker(t *testing.T) {
	tests := []struct {
		name          string
		lastUpdated   time.Duration
		count         int64
		errExpected   error

limitations under the License.
*/

package fairqueuing

import (
	"math"
	"testing"
	"time"

	testclock "k8s.io/utils/clock/testing"
)

func TestIntegrator(t *testing.T) {
	now := time.Now()
	clk := testclock.NewFakeClock(now)
	igr := NewNamedIntegrator(clk, "testee")
	igr.Add(3)
	clk.Step(time.Second)
	results := igr.GetResults()
	rToo := igr.Reset()

		actualInterval := exp.NextBackOff()
		if !(minInterval <= actualInterval && actualInterval <= maxInterval) {
			t.Error("error")
		}
	}
}

type TestClock struct {
	i     time.Duration
	start time.Time
}

func (c *TestClock) Now() time.Time {
	t := c.start.Add(c.i)
	c.i += time.Second
	return t
}

func TestRetry(t *testing.T) {
	o := DefaultOption()

type testInterface interface {
	InAESPackage() bool
}

// testBlock implements the cipher.Block interface and any *Able
// interfaces that need to be tested.
type testBlock struct{}

func (*testBlock) BlockSize() int      { return 0 }
func (*testBlock) Encrypt(a, b []byte) {}
func (*testBlock) Decrypt(a, b []byte) {}
func (*testBlock) NewGCM(int, int) (cipher.AEAD, error) {
	return &testAEAD{}, nil
}

	// receiving from a non-ready channel always blocks
	testBlock(always, func() {
		ch := make(chan int)
		<-ch
	})

	// empty selects always block
	testBlock(always, func() {
		select {}
	})

	// selects with only nil channels always block
	testBlock(always, func() {
		select {
		case <-nilch:
			unreachable()
		}
	})
	testBlock(always, func() {
		select {
		case nilch <- 7:

func TestCTROutOfBoundsWrite(t *testing.T) {
	testBlock(t, "CTR", cipher.NewCTR)
}
func TestOFBOutOfBoundsWrite(t *testing.T) {
	testBlock(t, "OFB", cipher.NewOFB)
}
func TestCFBEncryptOutOfBoundsWrite(t *testing.T) {
	testBlock(t, "CFB Encrypt", cipher.NewCFBEncrypter)
}
func TestCFBDecryptOutOfBoundsWrite(t *testing.T) {
	testBlock(t, "CFB Decrypt", cipher.NewCFBDecrypter)
}

                    workerLeaseService.withLocks([projectLock]) {
                        assert testLock.tryLock()
                        try {
                            assert lockIsHeld(projectLock)
                        } finally {
                            testLock.unlock()
                        }
                    }
                }
            }
            started.await()

	"k8s.io/client-go/kubernetes"
	"k8s.io/client-go/kubernetes/fake"
	k8stesting "k8s.io/client-go/testing"

	"istio.io/istio/pkg/revisions"
	"istio.io/istio/pkg/test/util/retry"
)

const testLock = "test-lock"

func createElection(t *testing.T,
	name string, revision string,
	watcher revisions.DefaultWatcher,
	expectLeader bool,
	client kubernetes.Interface, fns ...func(stop <-chan struct{}),

		}
		testReadFrom struct { // ReadFrom(testFile{ops}) == (wantCnt, wantErr)
			ops     fileOps
			wantCnt int64
			wantErr error
		}
		testClose struct { // Close() == wantErr
			wantErr error
		}
		testFnc any // testHeader | testWrite | testReadFrom | testClose
	)

	vectors := []struct {
		file  string // Optional filename of expected output
		tests []testFnc
	}{{