z.prec = 0
		if z.form == finite {
			// truncate z to 0
			z.acc = makeAcc(z.neg)
			z.form = zero
		}
		return z
	}

	// general case
	if prec > MaxPrec {
		prec = MaxPrec
	}
	old := z.prec
	z.prec = uint32(prec)
	if z.prec < old {
		z.round(0)
	}
	return z
}

func makeAcc(above bool) Accuracy {
	if above {
		return Above
	}
	return Below
}

		newSvc: makeSvc("1.1.1.1", "2.2.2.2"),
		oldSvc: makeSvc("1.1.1.1", "3.3.3.3"),
		fail:   true,
	}, {
		name:   "update: add externalIPs",
		newSvc: makeSvc("1.1.1.1", "2.2.2.2"),
		oldSvc: makeSvc("1.1.1.1"),
		fail:   true,
	}, {
		name:   "update: erase externalIPs",
		newSvc: makeSvc(),
		oldSvc: makeSvc("1.1.1.1", "2.2.2.2"),
	}, {
		name:   "update: reduce externalIPs from back",
		newSvc: makeSvc("1.1.1.1"),

			},
			pvcs: []*v1.PersistentVolumeClaim{
				makePVC("pvc-a", waitSC.Name).withBoundPV("pv-a").PersistentVolumeClaim,
			},
			pvs: []*v1.PersistentVolume{
				makePV("pv-a", waitSC.Name).withPhase(v1.VolumeAvailable).PersistentVolume,
			},
			wantStateAfterPreFilter: &stateData{
				podVolumeClaims: &PodVolumeClaims{
					boundClaims: []*v1.PersistentVolumeClaim{

	for _, tc := range testCases {
		ct := makeCT(success)
		if err := ct.ClearEntriesForIP(tc.ip, v1.ProtocolUDP); err != nil {
			t.Errorf("%s/success: Unexpected error: %v", tc.name, err)
		}
		execCommand := ct.getExecutedCommand()
		if tc.expectCommand != execCommand {
			t.Errorf("%s/success: Expect command: %s, but executed %s", tc.name, tc.expectCommand, execCommand)
		}

		ct = makeCT(nothingToDelete)

			expectedMatch: "gce-pd-5",
			claim:         makePVC("1G", nil),
		},
		"successful-no-match": {
			expectedMatch: "",
			claim:         makePVC("999G", nil),
		},
		"successful-no-match-due-to-label": {
			expectedMatch: "",
			claim: makePVC("999G", func(pvc *v1.PersistentVolumeClaim) {
				pvc.Spec.Selector = &metav1.LabelSelector{
					MatchLabels: map[string]string{

}

func TestMergeResizeCondition(t *testing.T) {
	currentTime := metav1.Now()

	pvc := makePVC([]v1.PersistentVolumeClaimCondition{
		{
			Type:               v1.PersistentVolumeClaimResizing,
			Status:             v1.ConditionTrue,
			LastTransitionTime: currentTime,
		},
	}).get()

	noConditionPVC := makePVC([]v1.PersistentVolumeClaimCondition{}).get()

	conditionFalseTime := metav1.Now()

	testPodEphemeralClaim = makePVC(testPodName+"-"+ephemeralVolumeName, testNamespace, makeOwnerReference(testPodWithEphemeral, true))
	conflictingClaim      = makePVC(testPodName+"-"+ephemeralVolumeName, testNamespace, nil)
	otherNamespaceClaim   = makePVC(testPodName+"-"+ephemeralVolumeName, otherNamespace, nil)
)

func init() {
	klog.InitFlags(nil)
}

package main

func main() {
	c := make(chan int, 1)
	x := 0
	select {
	case c <- x: // should see x = 0, not x = 42 (after makec)
	case <-makec(&x): // should be evaluated only after c and x on previous line
	}
	y := <-c
	if y != 0 {
		panic(y)
	}
}

func makec(px *int) chan bool {
	if false { for {} }
	*px = 42
	return make(chan bool, 0)

	calls []func(int) (int, int)
}

func makeC() Funcs {
	return &C{}
}

func (c *C) Add(fn func(int) (int, int)) Funcs {
	c.calls = append(c.calls, fn)
	return c
}

func (c *C) Call() {
	for _, fn := range c.calls {
		fn(0)
	}
}

type Funcs interface {
	Add(func(int) (int, int)) Funcs
	Call()
}

func main() {
	s := &S{}
	c := makeC().Add(s.M1).Add(s.M2)
	c.Call()

	pvb.PersistentVolume.Status = v1.PersistentVolumeStatus{
		Phase: phase,
	}
	return pvb
}

type pvcBuilder struct {
	*v1.PersistentVolumeClaim
}

func makePVC(name string, storageClassName string) pvcBuilder {
	return pvcBuilder{PersistentVolumeClaim: &v1.PersistentVolumeClaim{
		ObjectMeta: metav1.ObjectMeta{
			Name:      name,
			Namespace: v1.NamespaceDefault,
		},