child.text == "data"
    }

    def "uses fallback for touching empty files"() {
        given:
        def fileAttributeView = Stub(BasicFileAttributeView) {
            setTimes(_, _, _) >> { throw new FileSystemException("file: Operation not permitted") }
        }
        def path = Stub(java.nio.file.Path) {
            getFileSystem() >> Stub(FileSystem) {

        when:
        setTime(51243)

        then:
        timer.getElapsed() == "51.243 secs"
    }

    def testOnlySecondsEvenMs() {
        when:
        setTime(4000)

        then:
        timer.getElapsed() == "4.0 secs"
    }

    def testMinutesAndSeconds() {
        when:
        setTime(0, 32, 40, 322)

        then:

	}

	now := time.Now()
	fakeClock.SetTime(now.Add(-61 * time.Minute))
	tracker.Set("k1", 61)
	fakeClock.SetTime(now.Add(-60 * time.Minute))
	tracker.Set("k2", 60)
	// we are going to prune keys that are stale for >= 1h
	// so the above keys are expected to be pruned and the
	// key below should not be pruned.
	mostRecent := now.Add(-59 * time.Minute)
	fakeClock.SetTime(mostRecent)
	tracker.Set("k3", 59)

	// TODO(mdempsky): Make use of column.

	// Since we don't know the set of needed file positions, we reserve
	// maxlines positions per file. We delay calling token.File.SetLines until
	// all positions have been calculated (by way of fakeFileSet.setLines), so
	// that we can avoid setting unnecessary lines. See also golang/go#46586.
	f := s.files[file]
	if f == nil {
		f = &fileInfo{file: s.fset.AddFile(file, -1, maxlines)}

func exerciseSettablePassiveClock(t *testing.T, pc TestableEventClock) {
	t1 := time.Now()
	t2 := t1.Add(time.Hour)
	pc.SetTime(t1)
	tx := pc.Now()
	if tx != t1 {
		t.Errorf("SetTime(%#+v); Now() => %#+v", t1, tx)
	}
	dx := pc.Since(t1)
	if dx != 0 {
		t.Errorf("Since() => %v", dx)
	}
	pc.SetTime(t2)
	dx = pc.Since(t1)
	if dx != time.Hour {
		t.Errorf("Since() => %v", dx)
	}
	tx = pc.Now()

	}
	return result
}

// isValidSetSize - checks whether given count is a valid set size for erasure coding.
var isValidSetSize = func(count uint64) bool {
	return (count >= setSizes[0] && count <= setSizes[len(setSizes)-1])
}

func commonSetDriveCount(divisibleSize uint64, setCounts []uint64) (setSize uint64) {
	// prefers setCounts to be sorted for optimal behavior.
	if divisibleSize < setCounts[len(setCounts)-1] {

	// wait for longer than the maxBudget
	nextTime := time.Now().Add(10 * time.Second)
	fakeClock.SetTime(nextTime)
	if res := budget.takeAvailable(); res != budget.maxBudget {
		t.Errorf("Expected: %v, got: %v", budget.maxBudget, res)
	}
	// add two refresh intervals to accumulate 2*refresh durations
	nextTime = nextTime.Add(2 * time.Second)
	fakeClock.SetTime(nextTime)
	if res := budget.takeAvailable(); res != 2*budget.refresh {

		if !ok || limit != nil && t.After(*limit) {
			break
		}
		fec.SetTime(t)
	}
}

// SetTime sets the time and runs to completion all events that should
// be started by the given time --- including any further events they
// schedule
func (fec *Fake) SetTime(t time.Time) {
	fec.FakePassiveClock.SetTime(t)
	for {
		foundSome := false
		func() {
			fec.waitersLock.Lock()

		// first image starts pulling at 10s
		fakeClock.SetTime(frozenTime.Add(time.Second * 10))
		tracker.RecordImageStartedPulling(podInitializing.UID)
		// second image starts pulling at 11s
		fakeClock.SetTime(frozenTime.Add(time.Second * 11))
		tracker.RecordImageStartedPulling(podInitializing.UID)
		// third image starts pulling at 14s
		fakeClock.SetTime(frozenTime.Add(time.Second * 14))

		ddt := time.Duration(rand.Intn(ddtRangeCentiPeriods)-ddtOffsetCentiPeriods) * steppingPeriod / 100
		t1 = t1.Add(ddt)
		diff := t1.Sub(t0)
		if diff > dt {
			dt = diff
		}
		clk.SetTime(t1)
		tro.Set(1)
		expectedCount := int64(dt / samplingPeriod)
		actualCount, err := getHistogramCount(registry, histogramName)
		if err != nil && !(err == errMetricNotFound && expectedCount == 0) {