add id and key formatting utils; format keys as b36cid by default; update tests

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/ipfs/go-unixfs v0.2.4
 	github.com/libp2p/go-libp2p-core v0.6.0
 	github.com/multiformats/go-multiaddr v0.2.2
+	github.com/multiformats/go-multibase v0.0.3
 	github.com/multiformats/go-multihash v0.0.13
 )
 

idfmt.go

+package iface
+
+import (
+	peer "github.com/libp2p/go-libp2p-core/peer"
+	mbase "github.com/multiformats/go-multibase"
+)
+
+func FormatKeyID(id peer.ID) string {
+	if s, err := peer.ToCid(id).StringOfBase(mbase.Base36); err != nil {
+		panic(err)
+	} else {
+		return s
+	}
+}
+
+// FormatKey formats the given IPNS key in a canonical way.
+func FormatKey(key Key) string {
+	return FormatKeyID(key.ID())
+}

tests/key.go

@@ -5,8 +5,11 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/ipfs/interface-go-ipfs-core"
+	cid "github.com/ipfs/go-cid"
+	coreiface "github.com/ipfs/interface-go-ipfs-core"
+	iface "github.com/ipfs/interface-go-ipfs-core"
 	opt "github.com/ipfs/interface-go-ipfs-core/options"
+	mbase "github.com/multiformats/go-multibase"
 )
 
 func (tp *TestSuite) TestKey(t *testing.T) {
@@ -64,8 +67,8 @@ func (tp *TestSuite) TestListSelf(t *testing.T) {
 		t.Errorf("expected the key to be called 'self', got '%s'", keys[0].Name())
 	}
 
-	if keys[0].Path().String() != "/ipns/"+self.ID().Pretty() {
-		t.Errorf("expected the key to have path '/ipns/%s', got '%s'", self.ID().Pretty(), keys[0].Path().String())
+	if keys[0].Path().String() != "/ipns/"+coreiface.FormatKeyID(self.ID()) {
+		t.Errorf("expected the key to have path '/ipns/%s', got '%s'", coreiface.FormatKeyID(self.ID()), keys[0].Path().String())
 	}
 }
 
@@ -134,9 +137,30 @@ func (tp *TestSuite) TestGenerate(t *testing.T) {
 		t.Errorf("expected the key to be called 'foo', got '%s'", k.Name())
 	}
 
-	if !strings.HasPrefix(k.Path().String(), "/ipns/Qm") {
-		t.Errorf("expected the key to be prefixed with '/ipns/Qm', got '%s'", k.Path().String())
+	verifyIPNSPath(t, k.Path().String())
+}
+
+func verifyIPNSPath(t *testing.T, p string) bool {
+	t.Helper()
+	if !strings.HasPrefix(p, "/ipns/") {
+		t.Errorf("path %q does not look like an IPNS path", p)
+		return false
+	}
+	k := p[len("/ipns/"):]
+	c, err := cid.Decode(k)
+	if err != nil {
+		t.Errorf("failed to decode IPNS key %q (%v)", k, err)
+		return false
+	}
+	b36, err := c.StringOfBase(mbase.Base36)
+	if err != nil {
+		t.Fatalf("cid cannot format itself in b36")
+		return false
+	}
+	if b36 != k {
+		t.Errorf("IPNS key is not base36")
 	}
+	return true
 }
 
 func (tp *TestSuite) TestGenerateSize(t *testing.T) {
@@ -157,9 +181,7 @@ func (tp *TestSuite) TestGenerateSize(t *testing.T) {
 		t.Errorf("expected the key to be called 'foo', got '%s'", k.Name())
 	}
 
-	if !strings.HasPrefix(k.Path().String(), "/ipns/Qm") {
-		t.Errorf("expected the key to be prefixed with '/ipns/Qm', got '%s'", k.Path().String())
-	}
+	verifyIPNSPath(t, k.Path().String())
 }
 
 func (tp *TestSuite) TestGenerateType(t *testing.T) {
@@ -256,15 +278,8 @@ func (tp *TestSuite) TestList(t *testing.T) {
 		return
 	}
 
-	if !strings.HasPrefix(l[0].Path().String(), "/ipns/Qm") {
-		t.Fatalf("expected key 0 to be prefixed with '/ipns/Qm', got '%s'", l[0].Name())
-		return
-	}
-
-	if !strings.HasPrefix(l[1].Path().String(), "/ipns/Qm") {
-		t.Fatalf("expected key 1 to be prefixed with '/ipns/Qm', got '%s'", l[1].Name())
-		return
-	}
+	verifyIPNSPath(t, l[0].Path().String())
+	verifyIPNSPath(t, l[1].Path().String())
 }
 
 func (tp *TestSuite) TestRename(t *testing.T) {

tests/name.go

@@ -2,15 +2,15 @@ package tests
 
 import (
 	"context"
-	path "github.com/ipfs/interface-go-ipfs-core/path"
 	"io"
 	"math/rand"
 	gopath "path"
 	"testing"
 	"time"
 
-	"github.com/ipfs/go-ipfs-files"
-	ipath "github.com/ipfs/go-path"
+	path "github.com/ipfs/interface-go-ipfs-core/path"
+
+	files "github.com/ipfs/go-ipfs-files"
 
 	coreiface "github.com/ipfs/interface-go-ipfs-core"
 	opt "github.com/ipfs/interface-go-ipfs-core/options"
@@ -70,8 +70,8 @@ func (tp *TestSuite) TestPublishResolve(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			if e.Name() != self.ID().Pretty() {
-				t.Errorf("expected e.Name to equal '%s', got '%s'", self.ID().Pretty(), e.Name())
+			if e.Name() != coreiface.FormatKeyID(self.ID()) {
+				t.Errorf("expected e.Name to equal '%s', got '%s'", coreiface.FormatKeyID(self.ID()), e.Name())
 			}
 
 			if e.Value().String() != p.String() {
@@ -100,8 +100,8 @@ func (tp *TestSuite) TestPublishResolve(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			if e.Name() != self.ID().Pretty() {
-				t.Errorf("expected e.Name to equal '%s', got '%s'", self.ID().Pretty(), e.Name())
+			if e.Name() != coreiface.FormatKeyID(self.ID()) {
+				t.Errorf("expected e.Name to equal '%s', got '%s'", coreiface.FormatKeyID(self.ID()), e.Name())
 			}
 
 			if e.Value().String() != p.String()+"/test" {
@@ -130,8 +130,8 @@ func (tp *TestSuite) TestPublishResolve(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			if e.Name() != self.ID().Pretty() {
-				t.Errorf("expected e.Name to equal '%s', got '%s'", self.ID().Pretty(), e.Name())
+			if e.Name() != coreiface.FormatKeyID(self.ID()) {
+				t.Errorf("expected e.Name to equal '%s', got '%s'", coreiface.FormatKeyID(self.ID()), e.Name())
 			}
 
 			if e.Value().String() != p.String() {
@@ -160,8 +160,8 @@ func (tp *TestSuite) TestPublishResolve(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			if e.Name() != self.ID().Pretty() {
-				t.Errorf("expected e.Name to equal '%s', got '%s'", self.ID().Pretty(), e.Name())
+			if e.Name() != coreiface.FormatKeyID(self.ID()) {
+				t.Errorf("expected e.Name to equal '%s', got '%s'", coreiface.FormatKeyID(self.ID()), e.Name())
 			}
 
 			if e.Value().String() != p.String()+"/a" {
@@ -212,8 +212,8 @@ func (tp *TestSuite) TestBasicPublishResolveKey(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if ipath.Join([]string{"/ipns", e.Name()}) != k.Path().String() {
-		t.Errorf("expected e.Name to equal '%s', got '%s'", e.Name(), k.Path().String())
+	if e.Name() != coreiface.FormatKey(k) {
+		t.Errorf("expected e.Name to equal %s, got '%s'", e.Name(), coreiface.FormatKey(k))
 	}
 
 	if e.Value().String() != p.String() {
@@ -255,8 +255,8 @@ func (tp *TestSuite) TestBasicPublishResolveTimeout(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if e.Name() != self.ID().Pretty() {
-		t.Errorf("expected e.Name to equal '%s', got '%s'", self.ID().Pretty(), e.Name())
+	if e.Name() != coreiface.FormatKeyID(self.ID()) {
+		t.Errorf("expected e.Name to equal '%s', got '%s'", coreiface.FormatKeyID(self.ID()), e.Name())
 	}
 
 	if e.Value().String() != p.String() {