Allow 6 values in Keyspace parsing (#1076)

* Allow 6 values in Keyspace parsing

Dragonflydb v1.35.0 returns 6 values for each db.

* fix condition, fix tests

---------

Co-authored-by: Oliver <oliver@21zoo.com>

Author: klemenStanic

exporter/info.go

@@ -249,7 +249,7 @@ func parseDBKeyspaceString(inputKey string, inputVal string) (keysTotal float64,
 	}
 
 	split := strings.Split(inputVal, ",")
-	if len(split) < 2 || len(split) > 4 {
+	if len(split) < 2 {
 		log.Debugf("parseDBKeyspaceString strings.Split(inputVal) invalid: %#v", split)
 		return
 	}

exporter/info_test.go

@@ -31,7 +31,7 @@ func TestKeyspaceStringParser(t *testing.T) {
 		{db: "db3", stats: "keys=123,expires=0,avg_ttl=zzz", ok: false},
 		{db: "db3", stats: "keys=1,expires=0,avg_ttl=zzz,cached_keys=0", ok: false},
 		{db: "db3", stats: "keys=1,expires=0,avg_ttl=0,cached_keys=zzz", ok: false},
-		{db: "db3", stats: "keys=1,expires=0,avg_ttl=0,cached_keys=0,extra=0", ok: false},
+		{db: "db3", stats: "keys=1,expires=0,avg_ttl=0,cached_keys=0,extra=0", keysTotal: 1, keysEx: 0, avgTTL: 0, keysCached: 0, ok: true},
 
 		{db: "db0", stats: "keys=1,expires=0,avg_ttl=0", keysTotal: 1, keysEx: 0, avgTTL: 0, keysCached: -1, ok: true},
 		{db: "db0", stats: "keys=1,expires=0,avg_ttl=0,cached_keys=0", keysTotal: 1, keysEx: 0, avgTTL: 0, keysCached: 0, ok: true},