@@ -87,6 +87,7 @@ func TestConstructFails(t *testing.T) {
8787 "/ip4/127.0.0.1/tcp/9090/http/p2p-webcrt-direct" ,
8888 "/" ,
8989 "" ,
90+ "/p2p/QmxoHT6iViN5xAjoz1VZ553cL31U9F94ht3QvWR1FrEbZY" , // sha256 multihash with digest len > 32
9091 }
9192
9293 for _ , a := range cases {
@@ -510,13 +511,14 @@ func FuzzNewMultiaddrBytes(f *testing.F) {
510511 f .Add (ma .Bytes ())
511512 }
512513
513- f .Fuzz (func (_ * testing.T , b []byte ) {
514+ f .Fuzz (func (t * testing.T , b []byte ) {
514515 // just checking that it doesn't panic
515516 ma , err := NewMultiaddrBytes (b )
516517 if err == nil {
517518 // for any valid multiaddrs, make sure these calls don't panic
518- _ = ma .String ()
519519 ma .Protocols ()
520+ roundTripBytes (t , ma )
521+ roundTripString (t , ma )
520522 }
521523 })
522524}
@@ -529,18 +531,38 @@ func FuzzNewMultiaddrString(f *testing.F) {
529531 }
530532 f .Add (v )
531533 }
532-
533- f .Fuzz (func (_ * testing.T , s string ) {
534+ f .Fuzz (func (t * testing.T , s string ) {
534535 // just checking that it doesn't panic
535536 ma , err := NewMultiaddr (s )
536537 if err == nil {
537538 // for any valid multiaddrs, make sure these calls don't panic
538- _ = ma .String ()
539539 ma .Protocols ()
540+ roundTripBytes (t , ma )
541+ roundTripString (t , ma )
540542 }
541543 })
542544}
543545
546+ func roundTripBytes (t * testing.T , orig Multiaddr ) {
547+ m2 , err := NewMultiaddrBytes (orig .Bytes ())
548+ if err != nil {
549+ t .Fatalf ("failed to parse maddr back from ma.Bytes, %v: %v" , orig , err )
550+ }
551+ if ! m2 .Equal (orig ) {
552+ t .Fatalf ("unequal maddr after roundTripBytes %v %v" , orig , m2 )
553+ }
554+ }
555+
556+ func roundTripString (t * testing.T , orig Multiaddr ) {
557+ m2 , err := NewMultiaddr (orig .String ())
558+ if err != nil {
559+ t .Fatalf ("failed to parse maddr back from ma.String, %v: %v" , orig , err )
560+ }
561+ if ! m2 .Equal (orig ) {
562+ t .Fatalf ("unequal maddr after roundTripString %v %v\n % 02x\n % 02x\n " , orig , m2 , orig .Bytes (), m2 .Bytes ())
563+ }
564+ }
565+
544566func TestBinaryRepresentation (t * testing.T ) {
545567 expected := []byte {0x4 , 0x7f , 0x0 , 0x0 , 0x1 , 0x91 , 0x2 , 0x4 , 0xd2 }
546568 ma , err := NewMultiaddr ("/ip4/127.0.0.1/udp/1234" )
@@ -848,3 +870,15 @@ func BenchmarkUniqueAddrs(b *testing.B) {
848870 })
849871 }
850872}
873+
874+ func TestDNS (t * testing.T ) {
875+ b := []byte ("7*000000000000000000000000000000000000000000" )
876+ a , err := NewMultiaddrBytes (b )
877+ if err != nil {
878+ t .Fatal (err )
879+ }
880+ aa := StringCast (a .String ())
881+ if ! a .Equal (aa ) {
882+ t .Fatal ("expected equality" )
883+ }
884+ }
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