lnd.xprv/brontide/noise_test.go

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package brontide
import (
"bytes"
"net"
"testing"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/roasbeef/btcd/btcec"
)
func TestConnectionCorrectness(t *testing.T) {
// First, generate the long-term private keys both ends of the connection
// within our test.
localPriv, err := btcec.NewPrivateKey(btcec.S256())
if err != nil {
t.Fatalf("unable to generate local priv key: %v", err)
}
remotePriv, err := btcec.NewPrivateKey(btcec.S256())
if err != nil {
t.Fatalf("unable to generate remote priv key: %v", err)
}
// Having a port of ":0" means a random port, and interface will be
// chosen for our listener.
addr := ":0"
// Our listener will be local, and the connection remote.
listener, err := NewListener(localPriv, addr)
if err != nil {
t.Fatalf("unable to create listener: %v", err)
}
defer listener.Close()
netAddr := &lnwire.NetAddress{
IdentityKey: localPriv.PubKey(),
Address: listener.Addr().(*net.TCPAddr),
}
// Initiate a connection with a separate goroutine, and listen with our
// main one. If both errors are nil, then encryption+auth was succesful.
errChan := make(chan error)
connChan := make(chan net.Conn)
go func() {
conn, err := Dial(remotePriv, netAddr)
errChan <- err
connChan <- conn
}()
localConn, listenErr := listener.Accept()
if listenErr != nil {
t.Fatalf("unable to accept connection: %v", listenErr)
}
if dialErr := <-errChan; err != nil {
t.Fatalf("unable to establish connection: %v", dialErr)
}
conn := <-connChan
// Test out some message full-message reads.
for i := 0; i < 10; i++ {
msg := []byte("hello" + string(i))
if _, err := conn.Write(msg); err != nil {
t.Fatalf("remote conn failed to write: %v", err)
}
readBuf := make([]byte, len(msg))
if _, err := localConn.Read(readBuf); err != nil {
t.Fatalf("local conn failed to read: %v", err)
}
if !bytes.Equal(readBuf, msg) {
t.Fatalf("messages don't match, %v vs %v",
string(readBuf), string(msg))
}
}
// Now try incremental message reads. This simulates first writing a
// message header, then a message body.
outMsg := []byte("hello world")
if _, err := conn.Write(outMsg); err != nil {
t.Fatalf("remote conn failed to write: %v", err)
}
readBuf := make([]byte, len(outMsg))
if _, err := localConn.Read(readBuf[:len(outMsg)/2]); err != nil {
t.Fatalf("local conn failed to read: %v", err)
}
if _, err := localConn.Read(readBuf[len(outMsg)/2:]); err != nil {
t.Fatalf("local conn failed to read: %v", err)
}
if !bytes.Equal(outMsg, readBuf) {
t.Fatalf("messages don't match, %v vs %v",
string(readBuf), string(outMsg))
}
}
func TestNoiseIdentityHiding(t *testing.T) {
// TODO(roasbeef): fin
}