Function userToken

pkg/ring/ring_test.go:3169–3176

User shuffle shard token.

(user, zone string, skip int)

// User shuffle shard token.
func userToken(user, zone string, skip int) uint32 {
	r := rand.New(rand.NewSource(shard.ShuffleShardSeed(user, zone)))

	for ; skip > 0; skip-- {
		_ = r.Uint32()
	}
	return r.Uint32()
}

func TestUpdateMetrics(t *testing.T) {
	testCase := []struct {