func makeSecretConnPair(tb testing.TB) (fooSecConn, barSecConn *SecretConnection) {
fooConn, barConn := makeDummyConnPair()
fooPrvKey := acm.PrivKeyEd25519(CRandBytes(32))
fooPubKey := fooPrvKey.PubKey().(acm.PubKeyEd25519)
barPrvKey := acm.PrivKeyEd25519(CRandBytes(32))
barPubKey := barPrvKey.PubKey().(acm.PubKeyEd25519)
Parallel(
func() {
var err error
fooSecConn, err = MakeSecretConnection(fooConn, fooPrvKey)
if err != nil {
tb.Errorf("Failed to establish SecretConnection for foo: %v", err)
return
}
if !bytes.Equal(fooSecConn.RemotePubKey(), barPubKey) {
tb.Errorf("Unexpected fooSecConn.RemotePubKey. Expected %v, got %v",
barPubKey, fooSecConn.RemotePubKey())
}
},
func() {
var err error
barSecConn, err = MakeSecretConnection(barConn, barPrvKey)
if barSecConn == nil {
tb.Errorf("Failed to establish SecretConnection for bar: %v", err)
return
}
if !bytes.Equal(barSecConn.RemotePubKey(), fooPubKey) {
tb.Errorf("Unexpected barSecConn.RemotePubKey. Expected %v, got %v",
fooPubKey, barSecConn.RemotePubKey())
}
})
return
}
// Generates a new validator with private key.
func GenPrivValidator() *PrivValidator {
privKeyBytes := new([64]byte)
copy(privKeyBytes[:32], CRandBytes(32))
pubKeyBytes := ed25519.MakePublicKey(privKeyBytes)
pubKey := account.PubKeyEd25519(pubKeyBytes[:])
privKey := account.PrivKeyEd25519(privKeyBytes[:])
return &PrivValidator{
Address: pubKey.Address(),
PubKey: pubKey,
PrivKey: privKey,
LastHeight: 0,
LastRound: 0,
LastStep: stepNone,
filePath: "",
}
}
// initialize config and create new node
func init() {
chainID = config.GetString("chain_id")
// Save new priv_validator file.
priv := &types.PrivValidator{
Address: user[0].Address,
PubKey: acm.PubKeyEd25519(user[0].PubKey.(acm.PubKeyEd25519)),
PrivKey: acm.PrivKeyEd25519(user[0].PrivKey.(acm.PrivKeyEd25519)),
}
priv.SetFile(config.GetString("priv_validator_file"))
priv.Save()
// TODO: change consensus/state.go timeouts to be shorter
// start a node
ready := make(chan struct{})
go newNode(ready)
<-ready
}
func TestSecretConnectionReadWrite(t *testing.T) {
fooConn, barConn := makeDummyConnPair()
fooWrites, barWrites := []string{}, []string{}
fooReads, barReads := []string{}, []string{}
// Pre-generate the things to write (for foo & bar)
for i := 0; i < 100; i++ {
fooWrites = append(fooWrites, RandStr((RandInt()%(dataMaxSize*5))+1))
barWrites = append(barWrites, RandStr((RandInt()%(dataMaxSize*5))+1))
}
// A helper that will run with (fooConn, fooWrites, fooReads) and vice versa
genNodeRunner := func(nodeConn dummyConn, nodeWrites []string, nodeReads *[]string) func() {
return func() {
// Node handskae
nodePrvKey := acm.PrivKeyEd25519(CRandBytes(32))
nodeSecretConn, err := MakeSecretConnection(nodeConn, nodePrvKey)
if err != nil {
t.Errorf("Failed to establish SecretConnection for node: %v", err)
return
}
// In parallel, handle reads and writes
Parallel(
func() {
// Node writes
for _, nodeWrite := range nodeWrites {
n, err := nodeSecretConn.Write([]byte(nodeWrite))
if err != nil {
t.Errorf("Failed to write to nodeSecretConn: %v", err)
return
}
if n != len(nodeWrite) {
t.Errorf("Failed to write all bytes. Expected %v, wrote %v", len(nodeWrite), n)
return
}
}
nodeConn.PipeWriter.Close()
},
func() {
// Node reads
readBuffer := make([]byte, dataMaxSize)
for {
n, err := nodeSecretConn.Read(readBuffer)
if err == io.EOF {
return
} else if err != nil {
t.Errorf("Failed to read from nodeSecretConn: %v", err)
return
}
*nodeReads = append(*nodeReads, string(readBuffer[:n]))
}
nodeConn.PipeReader.Close()
})
}
}
// Run foo & bar in parallel
Parallel(
genNodeRunner(fooConn, fooWrites, &fooReads),
genNodeRunner(barConn, barWrites, &barReads),
)
// A helper to ensure that the writes and reads match.
// Additionally, small writes (<= dataMaxSize) must be atomically read.
compareWritesReads := func(writes []string, reads []string) {
for {
// Pop next write & corresponding reads
var read, write string = "", writes[0]
var readCount = 0
for _, readChunk := range reads {
read += readChunk
readCount += 1
if len(write) <= len(read) {
break
}
if len(write) <= dataMaxSize {
break // atomicity of small writes
}
}
// Compare
if write != read {
t.Errorf("Expected to read %X, got %X", write, read)
}
// Iterate
writes = writes[1:]
reads = reads[readCount:]
if len(writes) == 0 {
break
}
}
}
compareWritesReads(fooWrites, barReads)
compareWritesReads(barWrites, fooReads)
}