package internet_test import ( "context" "testing" "github.com/google/go-cmp/cmp" "github.com/v2fly/v2ray-core/v5/common" "github.com/v2fly/v2ray-core/v5/common/buf" "github.com/v2fly/v2ray-core/v5/testing/servers/tcp" . "github.com/v2fly/v2ray-core/v5/transport/internet" ) func TestTCPFastOpen(t *testing.T) { tcpServer := tcp.Server{ MsgProcessor: func(b []byte) []byte { return b }, } dest, err := tcpServer.StartContext(context.Background(), &SocketConfig{Tfo: SocketConfig_Enable}) common.Must(err) defer tcpServer.Close() ctx := context.Background() dialer := DefaultSystemDialer{} conn, err := dialer.Dial(ctx, nil, dest, &SocketConfig{ Tfo: SocketConfig_Enable, }) common.Must(err) defer conn.Close() _, err = conn.Write([]byte("abcd")) common.Must(err) b := buf.New() common.Must2(b.ReadFrom(conn)) if r := cmp.Diff(b.Bytes(), []byte("abcd")); r != "" { t.Fatal(r) } }