func (rt replicatedTargetInfo) Empty() bool {
	return rt.Arn == ""
}

type replicatedInfos struct {
	ReplicationTimeStamp time.Time
	Targets              []replicatedTargetInfo
}

func (ri replicatedInfos) CompletedSize() (sz int64) {
	for _, t := range ri.Targets {
		if t.Empty() {
			continue
		}
		if t.ReplicationStatus == replication.Completed && t.PrevReplicationStatus != replication.Completed {
			sz += t.Size
		}
	}

	},
}

func TestReplicatedInfos(t *testing.T) {
	for i, test := range replicatedInfosTests {
		rinfos := replicatedInfos{
			Targets: test.tgtInfos,
		}
		if actualSize := rinfos.CompletedSize(); actualSize != test.expectedCompletedSize {
			t.Errorf("Test%d (%s): Size  got %d , want %d", i+1, test.name, actualSize, test.expectedCompletedSize)
		}