(tested) fix redis to pass tests

* delete info hash count key from redis (replaced with SCARD on infohash set)
* add GC test
* add peer.Addr() functio to always return unwrapped address if 4to6 appear

storage/test/storage_test_data.go

@@ -1,9 +1,12 @@
 package test
 
 import (
+	"math/rand"
 	"net/netip"
 
 	"github.com/sot-tech/mochi/bittorrent"
+	// used for seeding global math.Rand
+	_ "github.com/sot-tech/mochi/pkg/randseed"
 )
 
 var (
@@ -13,13 +16,32 @@ var (
 	v4Peer, v6Peer                                     bittorrent.Peer
 )
 
+func randIH(v2 bool) (ih bittorrent.InfoHash) {
+	var b []byte
+	if v2 {
+		b = make([]byte, bittorrent.InfoHashV2Len)
+	} else {
+		b = make([]byte, bittorrent.InfoHashV1Len)
+	}
+	rand.Read(b)
+	ih, _ = bittorrent.NewInfoHash(b)
+	return
+}
+
+func randPeerID() (ih bittorrent.PeerID) {
+	b := make([]byte, bittorrent.PeerIDLen)
+	rand.Read(b)
+	ih, _ = bittorrent.NewPeerID(b)
+	return
+}
+
 func init() {
-	testIh1, _ = bittorrent.NewInfoHash("00000000000000000001")
-	testIh2, _ = bittorrent.NewInfoHash("00000000000000000002")
-	testPeerID0, _ = bittorrent.NewPeerID([]byte("00000000000000000001"))
-	testPeerID1, _ = bittorrent.NewPeerID([]byte("00000000000000000002"))
-	testPeerID2, _ = bittorrent.NewPeerID([]byte("99999999999999999994"))
-	testPeerID3, _ = bittorrent.NewPeerID([]byte("99999999999999999996"))
+	testIh1 = randIH(false)
+	testIh2 = randIH(true)
+	testPeerID0 = randPeerID()
+	testPeerID1 = randPeerID()
+	testPeerID2 = randPeerID()
+	testPeerID3 = randPeerID()
 	testData = []hashPeer{
 		{
 			testIh1,