ceremonyclient/go-libp2p/p2p/net/pnet/psk_conn_test.go

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2023-08-21 03:50:38 +00:00
package pnet
import (
"bytes"
"context"
"crypto/rand"
"net"
"testing"
)
func setupPSKConns(ctx context.Context, t *testing.T) (net.Conn, net.Conn) {
testPSK := make([]byte, 32) // null bytes are as good test key as any other key
conn1, conn2 := net.Pipe()
psk1, err := NewProtectedConn(testPSK, conn1)
if err != nil {
t.Fatal(err)
}
psk2, err := NewProtectedConn(testPSK, conn2)
if err != nil {
t.Fatal(err)
}
return psk1, psk2
}
func TestPSKSimpelMessges(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
defer cancel()
psk1, psk2 := setupPSKConns(ctx, t)
msg1 := []byte("hello world")
out1 := make([]byte, len(msg1))
wch := make(chan error)
go func() {
_, err := psk1.Write(msg1)
wch <- err
}()
n, err := psk2.Read(out1)
if err != nil {
t.Fatal(err)
}
err = <-wch
if err != nil {
t.Fatal(err)
}
if n != len(out1) {
t.Fatalf("expected to read %d bytes, read: %d", len(out1), n)
}
if !bytes.Equal(msg1, out1) {
t.Fatalf("input and output are not the same")
}
}
func TestPSKFragmentation(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
defer cancel()
psk1, psk2 := setupPSKConns(ctx, t)
in := make([]byte, 1000)
if _, err := rand.Read(in); err != nil {
t.Fatal(err)
}
out := make([]byte, 100)
wch := make(chan error)
go func() {
_, err := psk1.Write(in)
wch <- err
}()
for i := 0; i < 10; i++ {
if _, err := psk2.Read(out); err != nil {
t.Fatal(err)
}
if !bytes.Equal(in[:100], out) {
t.Fatalf("input and output are not the same")
}
in = in[100:]
}
if err := <-wch; err != nil {
t.Fatal(err)
}
}