started:      metaCacheTestsetTimestamp,
		ended:        metaCacheTestsetTimestamp.Add(time.Minute),
		lastUpdate:   metaCacheTestsetTimestamp.Add(time.Minute),
		lastHandout:  metaCacheTestsetTimestamp,
		dataVersion:  metacacheStreamVersion,
	},
	1: {
		id:           "case-2-recursive",
		bucket:       "bucket",
		root:         "folder/prefix",
		recursive:    true,
		status:       scanStateSuccess,
		fileNotFound: false,

	error        string     `msg:"err"`
	root         string     `msg:"root"`
	fileNotFound bool       `msg:"fnf"`
	status       scanStatus `msg:"stat"`
	recursive    bool       `msg:"rec"`
	dataVersion  uint8      `msg:"v"`
}

func (m *metacache) finished() bool {
	return !m.ended.IsZero()
}

// worthKeeping indicates if the cache by itself is worth keeping.
func (m *metacache) worthKeeping() bool {