diff --git a/lib/go/camli/test/fakeindex.go b/lib/go/camli/test/fakeindex.go
index e647a2d91..3409e9e23 100644
--- a/lib/go/camli/test/fakeindex.go
+++ b/lib/go/camli/test/fakeindex.go
@@ -18,7 +18,9 @@ package test
 
 import (
 	"fmt"
+	"log"
 	"os"
+	"strings"
 	"sync"
 	"time"
 
@@ -32,6 +34,7 @@ type FakeIndex struct {
 	size            map[string]int64
 	ownerClaims     map[string]search.ClaimList // "<permanode>/<owner>" -> ClaimList
 	signerAttrValue map[string]*blobref.BlobRef // "<signer>\0<attr>\0<value>" -> blobref
+	path            map[string]*search.Path     // "<signer>\0<base>\0<suffix>" -> path
 
 	cllk  sync.Mutex
 	clock int64
@@ -45,6 +48,7 @@ func NewFakeIndex() *FakeIndex {
 		size:            make(map[string]int64),
 		ownerClaims:     make(map[string]search.ClaimList),
 		signerAttrValue: make(map[string]*blobref.BlobRef),
+		path:            make(map[string]*search.Path),
 	}
 }
 
@@ -83,6 +87,21 @@ func (fi *FakeIndex) AddClaim(owner, permanode *blobref.BlobRef, claimType, attr
 	}
 	key := permanode.String() + "/" + owner.String()
 	fi.ownerClaims[key] = append(fi.ownerClaims[key], claim)
+
+	if claimType == "set-attribute" && strings.HasPrefix(attr, "camliPath:") {
+		suffix := attr[len("camliPath:"):]
+		path := &search.Path{
+			Target: blobref.MustParse(value),
+			Suffix: suffix,
+		}
+		fi.path[fmt.Sprintf("%s\x00%s\x00%s", owner, permanode, suffix)] = path
+	}
+}
+
+func (fi *FakeIndex) AddSignerAttrValue(signer *blobref.BlobRef, attr, val string, latest *blobref.BlobRef) {
+	fi.lk.Lock()
+	defer fi.lk.Unlock()
+	fi.signerAttrValue[fmt.Sprintf("%s\x00%s\x00%s", signer, attr, val)] = latest
 }
 
 //
@@ -140,5 +159,14 @@ func (fi *FakeIndex) PathsLookup(signer, base *blobref.BlobRef, suffix string) (
 }
 
 func (fi *FakeIndex) PathLookup(signer, base *blobref.BlobRef, suffix string, at *time.Time) (*search.Path, os.Error) {
-	panic("NOIMPL")
+	if at != nil {
+		panic("PathLookup with non-nil at not supported")
+	}
+	fi.lk.Lock()
+	defer fi.lk.Unlock()
+	if p, ok := fi.path[fmt.Sprintf("%s\x00%s\x00%s", signer, base, suffix)]; ok {
+		return p, nil
+	}
+	log.Printf("PathLookup miss for signer %q, base %q, suffix %q", signer, base, suffix)
+	return nil, os.ENOENT
 }
diff --git a/server/go/camlistored/publish_test.go b/server/go/camlistored/publish_test.go
index 048fab087..6db02e2a8 100644
--- a/server/go/camlistored/publish_test.go
+++ b/server/go/camlistored/publish_test.go
@@ -19,6 +19,7 @@ package main
 import (
 	"http"
 	"http/httptest"
+	"strings"
 	"testing"
 
 	"camli/blobref"
@@ -26,18 +27,78 @@ import (
 	"camli/test"
 )
 
-func TestPublishURLs(t *testing.T) {
-	fakeIndex := test.NewFakeIndex()
-	owner := blobref.MustParse("owner-123")
-	sh := search.NewHandler(fakeIndex, owner)
-	ph := &PublishHandler{
-		RootName: "foo",
-		Search:   sh,
-	}
-	rw := httptest.NewRecorder()
-	req, _ := http.NewRequest("GET", "http://foo.com/pics/singlepic", nil)
-	req.Header.Set("X-PrefixHandler-PathBase", "/pics/")
-	req.Header.Set("X-PrefixHandler-PathSuffix", "singlepic")
-	pr := ph.NewRequest(rw, req)
-	t.Logf("Got request: %#v", *pr)
+type publishURLTest struct {
+	path string // input
+
+	subject string // expected
+}
+
+var publishURLTests = []publishURLTest{
+	{
+		path:    "/pics/singlepic",
+		subject: "picpn-123",
+	},
+	{
+		path:    "/pics/camping",
+		subject: "gal-123",
+	},
+	{
+		path:    "/pics/camping/-/m9876543210",
+		subject: "picpn-98765432100",
+	},
+}
+
+func TestPublishURLs(t *testing.T) {
+	owner := blobref.MustParse("owner-123")
+	picNode := blobref.MustParse("picpn-123")
+	galRef := blobref.MustParse("gal-123")
+	rootRef := blobref.MustParse("root-abc")
+	camp0 := blobref.MustParse("picpn-98765432100")
+	camp1 := blobref.MustParse("picpn-98765432111")
+	camp0f := blobref.MustParse("picfile-98765432f00")
+	camp1f := blobref.MustParse("picfile-98765432f10")
+
+	rootName := "foo"
+
+	for ti, tt := range publishURLTests {
+		idx := test.NewFakeIndex()
+		idx.AddSignerAttrValue(owner, "camliRoot", rootName, rootRef)
+		sh := search.NewHandler(idx, owner)
+		ph := &PublishHandler{
+			RootName: rootName,
+			Search:   sh,
+		}
+		rw := httptest.NewRecorder()
+		if !strings.HasPrefix(tt.path, "/pics/") {
+			panic("expected /pics/ prefix on " + tt.path)
+		}
+		req, _ := http.NewRequest("GET", "http://foo.com"+tt.path, nil)
+		req.Header.Set("X-PrefixHandler-PathBase", "/pics/")
+		req.Header.Set("X-PrefixHandler-PathSuffix", tt.path[len("/pics/"):])
+
+		idx.AddMeta(owner, "text/x-openpgp-public-key", 100)
+		for _, br := range []*blobref.BlobRef{picNode, galRef, rootRef, camp0, camp1} {
+			idx.AddMeta(br, "application/json; camliType=permanode", 100)
+		}
+		for _, br := range []*blobref.BlobRef{camp0f, camp1f} {
+			idx.AddMeta(br, "application/json; camliType=file", 100)
+		}
+
+		idx.AddClaim(owner, rootRef, "set-attribute", "camliPath:singlepic", picNode.String())
+		idx.AddClaim(owner, rootRef, "set-attribute", "camliPath:camping", galRef.String())
+		idx.AddClaim(owner, galRef, "add-attribute", "camliMember", camp0.String())
+		idx.AddClaim(owner, galRef, "add-attribute", "camliMember", camp1.String())
+		idx.AddClaim(owner, camp0, "set-attribute", "camliContent", camp0f.String())
+		idx.AddClaim(owner, camp1, "set-attribute", "camliContent", camp1f.String())
+		pr := ph.NewRequest(rw, req)
+
+		err := pr.findSubject()
+		if err != nil {
+			t.Errorf("test #%d, findSubject: %v", ti, err)
+			continue
+		}
+		if pr.subject.String() != tt.subject {
+			t.Errorf("test #%d, got subject %q, want %q", ti, pr.subject, tt.subject)
+		}
+	}
 }