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// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mounttablelib
import (
"fmt"
"os"
"reflect"
"testing"
"time"
"v.io/v23"
"v.io/v23/naming"
"v.io/v23/options"
"v.io/x/lib/vlog"
_ "v.io/x/ref/profiles"
"v.io/x/ref/test"
)
//go:generate v23 test generate
func protocolAndAddress(e naming.Endpoint) (string, string, error) {
addr := e.Addr()
if addr == nil {
return "", "", fmt.Errorf("failed to get address")
}
return addr.Network(), addr.String(), nil
}
func TestNeighborhood(t *testing.T) {
rootCtx, shutdown := test.InitForTest()
defer shutdown()
vlog.Infof("TestNeighborhood")
server, err := v23.NewServer(rootCtx)
if err != nil {
boom(t, "r.NewServer: %s", err)
}
defer server.Stop()
// Start serving on a loopback address.
eps, err := server.Listen(v23.GetListenSpec(rootCtx))
if err != nil {
boom(t, "Failed to Listen mount table: %s", err)
}
estr := eps[0].String()
addresses := []string{
naming.JoinAddressName(estr, ""),
naming.JoinAddressName(estr, "suffix1"),
naming.JoinAddressName(estr, "suffix2"),
}
// Create a name for the server.
serverName := fmt.Sprintf("nhtest%d", os.Getpid())
// Add neighborhood server.
nhd, err := NewLoopbackNeighborhoodDispatcher(serverName, addresses...)
if err != nil {
boom(t, "Failed to create neighborhood server: %s\n", err)
}
defer nhd.(*neighborhood).Stop()
if err := server.ServeDispatcher("", nhd); err != nil {
boom(t, "Failed to register neighborhood server: %s", err)
}
// Wait for the mounttable to appear in mdns
L:
for tries := 1; tries < 2; tries++ {
names := doGlob(t, rootCtx, estr, "", "*")
t.Logf("names %v", names)
for _, n := range names {
if n == serverName {
break L
}
}
time.Sleep(1 * time.Second)
}
// Make sure we get back a root for the server.
want, got := []string{""}, doGlob(t, rootCtx, estr, serverName, "")
if !reflect.DeepEqual(want, got) {
t.Errorf("Unexpected Glob result want: %q, got: %q", want, got)
}
// Make sure we can resolve through the neighborhood.
expectedSuffix := "a/b"
client := v23.GetClient(rootCtx)
name := naming.JoinAddressName(estr, serverName+"/"+expectedSuffix)
call, cerr := client.StartCall(rootCtx, name, "ResolveStep", nil, options.NoResolve{})
if cerr != nil {
boom(t, "ResolveStep.StartCall: %s", cerr)
}
var entry naming.MountEntry
if err := call.Finish(&entry); err != nil {
boom(t, "ResolveStep: %s", err)
}
// Resolution returned something. Make sure its correct.
if entry.Name != expectedSuffix {
boom(t, "resolveStep suffix: expected %s, got %s", expectedSuffix, entry.Name)
}
if len(entry.Servers) == 0 {
boom(t, "resolveStep returns no severs")
}
L2:
for _, s := range entry.Servers {
for _, a := range addresses {
if a == s.Server {
continue L2
}
}
boom(t, "Unexpected address from resolveStep result: %v", s.Server)
}
L3:
for _, a := range addresses {
for _, s := range entry.Servers {
if a == s.Server {
continue L3
}
}
boom(t, "Missing address from resolveStep result: %v", a)
}
}