/usr/share/gocode/src/github.com/hashicorp/memberlist/net_test.go is in golang-github-hashicorp-memberlist-dev 0.1.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 | package memberlist
import (
"bytes"
"encoding/binary"
"fmt"
"io"
"log"
"net"
"reflect"
"strings"
"testing"
"time"
"github.com/hashicorp/go-msgpack/codec"
)
// As a regression we left this test very low-level and network-ey, even after
// we abstracted the transport. We added some basic network-free transport tests
// in transport_test.go to prove that we didn't hard code some network stuff
// outside of NetTransport.
func TestHandleCompoundPing(t *testing.T) {
m := GetMemberlist(t)
m.config.EnableCompression = false
defer m.Shutdown()
var udp *net.UDPConn
for port := 60000; port < 61000; port++ {
udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
udpLn, err := net.ListenPacket("udp", udpAddr)
if err == nil {
udp = udpLn.(*net.UDPConn)
break
}
}
if udp == nil {
t.Fatalf("no udp listener")
}
// Encode a ping
ping := ping{SeqNo: 42}
buf, err := encode(pingMsg, ping)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
// Make a compound message
compound := makeCompoundMessage([][]byte{buf.Bytes(), buf.Bytes(), buf.Bytes()})
// Send compound version
addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
udp.WriteTo(compound.Bytes(), addr)
// Wait for responses
doneCh := make(chan struct{}, 1)
go func() {
select {
case <-doneCh:
case <-time.After(2 * time.Second):
panic("timeout")
}
}()
for i := 0; i < 3; i++ {
in := make([]byte, 1500)
n, _, err := udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
msgType := messageType(in[0])
if msgType != ackRespMsg {
t.Fatalf("bad response %v", in)
}
var ack ackResp
if err := decode(in[1:], &ack); err != nil {
t.Fatalf("unexpected err %s", err)
}
if ack.SeqNo != 42 {
t.Fatalf("bad sequence no")
}
}
doneCh <- struct{}{}
}
func TestHandlePing(t *testing.T) {
m := GetMemberlist(t)
m.config.EnableCompression = false
defer m.Shutdown()
var udp *net.UDPConn
for port := 60000; port < 61000; port++ {
udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
udpLn, err := net.ListenPacket("udp", udpAddr)
if err == nil {
udp = udpLn.(*net.UDPConn)
break
}
}
if udp == nil {
t.Fatalf("no udp listener")
}
// Encode a ping
ping := ping{SeqNo: 42}
buf, err := encode(pingMsg, ping)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
// Send
addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
udp.WriteTo(buf.Bytes(), addr)
// Wait for response
doneCh := make(chan struct{}, 1)
go func() {
select {
case <-doneCh:
case <-time.After(2 * time.Second):
panic("timeout")
}
}()
in := make([]byte, 1500)
n, _, err := udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
msgType := messageType(in[0])
if msgType != ackRespMsg {
t.Fatalf("bad response %v", in)
}
var ack ackResp
if err := decode(in[1:], &ack); err != nil {
t.Fatalf("unexpected err %s", err)
}
if ack.SeqNo != 42 {
t.Fatalf("bad sequence no")
}
doneCh <- struct{}{}
}
func TestHandlePing_WrongNode(t *testing.T) {
m := GetMemberlist(t)
m.config.EnableCompression = false
defer m.Shutdown()
var udp *net.UDPConn
for port := 60000; port < 61000; port++ {
udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
udpLn, err := net.ListenPacket("udp", udpAddr)
if err == nil {
udp = udpLn.(*net.UDPConn)
break
}
}
if udp == nil {
t.Fatalf("no udp listener")
}
// Encode a ping, wrong node!
ping := ping{SeqNo: 42, Node: m.config.Name + "-bad"}
buf, err := encode(pingMsg, ping)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
// Send
addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
udp.WriteTo(buf.Bytes(), addr)
// Wait for response
udp.SetDeadline(time.Now().Add(50 * time.Millisecond))
in := make([]byte, 1500)
_, _, err = udp.ReadFrom(in)
// Should get an i/o timeout
if err == nil {
t.Fatalf("expected err %s", err)
}
}
func TestHandleIndirectPing(t *testing.T) {
m := GetMemberlist(t)
m.config.EnableCompression = false
defer m.Shutdown()
var udp *net.UDPConn
for port := 60000; port < 61000; port++ {
udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
udpLn, err := net.ListenPacket("udp", udpAddr)
if err == nil {
udp = udpLn.(*net.UDPConn)
break
}
}
if udp == nil {
t.Fatalf("no udp listener")
}
// Encode an indirect ping
ind := indirectPingReq{
SeqNo: 100,
Target: net.ParseIP(m.config.BindAddr),
Port: uint16(m.config.BindPort),
}
buf, err := encode(indirectPingMsg, &ind)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
// Send
addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
udp.WriteTo(buf.Bytes(), addr)
// Wait for response
doneCh := make(chan struct{}, 1)
go func() {
select {
case <-doneCh:
case <-time.After(2 * time.Second):
panic("timeout")
}
}()
in := make([]byte, 1500)
n, _, err := udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
msgType := messageType(in[0])
if msgType != ackRespMsg {
t.Fatalf("bad response %v", in)
}
var ack ackResp
if err := decode(in[1:], &ack); err != nil {
t.Fatalf("unexpected err %s", err)
}
if ack.SeqNo != 100 {
t.Fatalf("bad sequence no")
}
doneCh <- struct{}{}
}
func TestTCPPing(t *testing.T) {
var tcp *net.TCPListener
var tcpAddr *net.TCPAddr
for port := 60000; port < 61000; port++ {
tcpAddr = &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: port}
tcpLn, err := net.ListenTCP("tcp", tcpAddr)
if err == nil {
tcp = tcpLn
break
}
}
if tcp == nil {
t.Fatalf("no tcp listener")
}
// Note that tcp gets closed in the last test, so we avoid a deferred
// Close() call here.
m := GetMemberlist(t)
defer m.Shutdown()
pingTimeout := m.config.ProbeInterval
pingTimeMax := m.config.ProbeInterval + 10*time.Millisecond
// Do a normal round trip.
pingOut := ping{SeqNo: 23, Node: "mongo"}
go func() {
tcp.SetDeadline(time.Now().Add(pingTimeMax))
conn, err := tcp.AcceptTCP()
if err != nil {
t.Fatalf("failed to connect: %s", err)
}
defer conn.Close()
msgType, _, dec, err := m.readStream(conn)
if err != nil {
t.Fatalf("failed to read ping: %s", err)
}
if msgType != pingMsg {
t.Fatalf("expecting ping, got message type (%d)", msgType)
}
var pingIn ping
if err := dec.Decode(&pingIn); err != nil {
t.Fatalf("failed to decode ping: %s", err)
}
if pingIn.SeqNo != pingOut.SeqNo {
t.Fatalf("sequence number isn't correct (%d) vs (%d)", pingIn.SeqNo, pingOut.SeqNo)
}
if pingIn.Node != pingOut.Node {
t.Fatalf("node name isn't correct (%s) vs (%s)", pingIn.Node, pingOut.Node)
}
ack := ackResp{pingIn.SeqNo, nil}
out, err := encode(ackRespMsg, &ack)
if err != nil {
t.Fatalf("failed to encode ack: %s", err)
}
err = m.rawSendMsgStream(conn, out.Bytes())
if err != nil {
t.Fatalf("failed to send ack: %s", err)
}
}()
deadline := time.Now().Add(pingTimeout)
didContact, err := m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
if err != nil {
t.Fatalf("error trying to ping: %s", err)
}
if !didContact {
t.Fatalf("expected successful ping")
}
// Make sure a mis-matched sequence number is caught.
go func() {
tcp.SetDeadline(time.Now().Add(pingTimeMax))
conn, err := tcp.AcceptTCP()
if err != nil {
t.Fatalf("failed to connect: %s", err)
}
defer conn.Close()
_, _, dec, err := m.readStream(conn)
if err != nil {
t.Fatalf("failed to read ping: %s", err)
}
var pingIn ping
if err := dec.Decode(&pingIn); err != nil {
t.Fatalf("failed to decode ping: %s", err)
}
ack := ackResp{pingIn.SeqNo + 1, nil}
out, err := encode(ackRespMsg, &ack)
if err != nil {
t.Fatalf("failed to encode ack: %s", err)
}
err = m.rawSendMsgStream(conn, out.Bytes())
if err != nil {
t.Fatalf("failed to send ack: %s", err)
}
}()
deadline = time.Now().Add(pingTimeout)
didContact, err = m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
if err == nil || !strings.Contains(err.Error(), "Sequence number") {
t.Fatalf("expected an error from mis-matched sequence number")
}
if didContact {
t.Fatalf("expected failed ping")
}
// Make sure an unexpected message type is handled gracefully.
go func() {
tcp.SetDeadline(time.Now().Add(pingTimeMax))
conn, err := tcp.AcceptTCP()
if err != nil {
t.Fatalf("failed to connect: %s", err)
}
defer conn.Close()
_, _, _, err = m.readStream(conn)
if err != nil {
t.Fatalf("failed to read ping: %s", err)
}
bogus := indirectPingReq{}
out, err := encode(indirectPingMsg, &bogus)
if err != nil {
t.Fatalf("failed to encode bogus msg: %s", err)
}
err = m.rawSendMsgStream(conn, out.Bytes())
if err != nil {
t.Fatalf("failed to send bogus msg: %s", err)
}
}()
deadline = time.Now().Add(pingTimeout)
didContact, err = m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
if err == nil || !strings.Contains(err.Error(), "Unexpected msgType") {
t.Fatalf("expected an error from bogus message")
}
if didContact {
t.Fatalf("expected failed ping")
}
// Make sure failed I/O respects the deadline. In this case we try the
// common case of the receiving node being totally down.
tcp.Close()
deadline = time.Now().Add(pingTimeout)
startPing := time.Now()
didContact, err = m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
pingTime := time.Now().Sub(startPing)
if err != nil {
t.Fatalf("expected no error during ping on closed socket, got: %s", err)
}
if didContact {
t.Fatalf("expected failed ping")
}
if pingTime > pingTimeMax {
t.Fatalf("took too long to fail ping, %9.6f", pingTime.Seconds())
}
}
func TestTCPPushPull(t *testing.T) {
m := GetMemberlist(t)
defer m.Shutdown()
m.nodes = append(m.nodes, &nodeState{
Node: Node{
Name: "Test 0",
Addr: net.ParseIP(m.config.BindAddr),
Port: uint16(m.config.BindPort),
},
Incarnation: 0,
State: stateSuspect,
StateChange: time.Now().Add(-1 * time.Second),
})
addr := fmt.Sprintf("%s:%d", m.config.BindAddr, m.config.BindPort)
conn, err := net.Dial("tcp", addr)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
defer conn.Close()
localNodes := make([]pushNodeState, 3)
localNodes[0].Name = "Test 0"
localNodes[0].Addr = net.ParseIP(m.config.BindAddr)
localNodes[0].Port = uint16(m.config.BindPort)
localNodes[0].Incarnation = 1
localNodes[0].State = stateAlive
localNodes[1].Name = "Test 1"
localNodes[1].Addr = net.ParseIP(m.config.BindAddr)
localNodes[1].Port = uint16(m.config.BindPort)
localNodes[1].Incarnation = 1
localNodes[1].State = stateAlive
localNodes[2].Name = "Test 2"
localNodes[2].Addr = net.ParseIP(m.config.BindAddr)
localNodes[2].Port = uint16(m.config.BindPort)
localNodes[2].Incarnation = 1
localNodes[2].State = stateAlive
// Send our node state
header := pushPullHeader{Nodes: 3}
hd := codec.MsgpackHandle{}
enc := codec.NewEncoder(conn, &hd)
// Send the push/pull indicator
conn.Write([]byte{byte(pushPullMsg)})
if err := enc.Encode(&header); err != nil {
t.Fatalf("unexpected err %s", err)
}
for i := 0; i < header.Nodes; i++ {
if err := enc.Encode(&localNodes[i]); err != nil {
t.Fatalf("unexpected err %s", err)
}
}
// Read the message type
var msgType messageType
if err := binary.Read(conn, binary.BigEndian, &msgType); err != nil {
t.Fatalf("unexpected err %s", err)
}
var bufConn io.Reader = conn
msghd := codec.MsgpackHandle{}
dec := codec.NewDecoder(bufConn, &msghd)
// Check if we have a compressed message
if msgType == compressMsg {
var c compress
if err := dec.Decode(&c); err != nil {
t.Fatalf("unexpected err %s", err)
}
decomp, err := decompressBuffer(&c)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
// Reset the message type
msgType = messageType(decomp[0])
// Create a new bufConn
bufConn = bytes.NewReader(decomp[1:])
// Create a new decoder
dec = codec.NewDecoder(bufConn, &hd)
}
// Quit if not push/pull
if msgType != pushPullMsg {
t.Fatalf("bad message type")
}
if err := dec.Decode(&header); err != nil {
t.Fatalf("unexpected err %s", err)
}
// Allocate space for the transfer
remoteNodes := make([]pushNodeState, header.Nodes)
// Try to decode all the states
for i := 0; i < header.Nodes; i++ {
if err := dec.Decode(&remoteNodes[i]); err != nil {
t.Fatalf("unexpected err %s", err)
}
}
if len(remoteNodes) != 1 {
t.Fatalf("bad response")
}
n := &remoteNodes[0]
if n.Name != "Test 0" {
t.Fatalf("bad name")
}
if bytes.Compare(n.Addr, net.ParseIP(m.config.BindAddr)) != 0 {
t.Fatal("bad addr")
}
if n.Incarnation != 0 {
t.Fatal("bad incarnation")
}
if n.State != stateSuspect {
t.Fatal("bad state")
}
}
func TestSendMsg_Piggyback(t *testing.T) {
m := GetMemberlist(t)
defer m.Shutdown()
// Add a message to be broadcast
a := alive{
Incarnation: 10,
Node: "rand",
Addr: []byte{127, 0, 0, 255},
Meta: nil,
}
m.encodeAndBroadcast("rand", aliveMsg, &a)
var udp *net.UDPConn
for port := 60000; port < 61000; port++ {
udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
udpLn, err := net.ListenPacket("udp", udpAddr)
if err == nil {
udp = udpLn.(*net.UDPConn)
break
}
}
// Encode a ping
ping := ping{SeqNo: 42}
buf, err := encode(pingMsg, ping)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
// Send
addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
udp.WriteTo(buf.Bytes(), addr)
// Wait for response
doneCh := make(chan struct{}, 1)
go func() {
select {
case <-doneCh:
case <-time.After(2 * time.Second):
panic("timeout")
}
}()
in := make([]byte, 1500)
n, _, err := udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
msgType := messageType(in[0])
if msgType != compoundMsg {
t.Fatalf("bad response %v", in)
}
// get the parts
trunc, parts, err := decodeCompoundMessage(in[1:])
if trunc != 0 {
t.Fatalf("unexpected truncation")
}
if len(parts) != 2 {
t.Fatalf("unexpected parts %v", parts)
}
if err != nil {
t.Fatalf("unexpected err %s", err)
}
var ack ackResp
if err := decode(parts[0][1:], &ack); err != nil {
t.Fatalf("unexpected err %s", err)
}
if ack.SeqNo != 42 {
t.Fatalf("bad sequence no")
}
var aliveout alive
if err := decode(parts[1][1:], &aliveout); err != nil {
t.Fatalf("unexpected err %s", err)
}
if aliveout.Node != "rand" || aliveout.Incarnation != 10 {
t.Fatalf("bad mesg")
}
doneCh <- struct{}{}
}
func TestEncryptDecryptState(t *testing.T) {
state := []byte("this is our internal state...")
config := &Config{
SecretKey: []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
ProtocolVersion: ProtocolVersionMax,
}
m, err := Create(config)
if err != nil {
t.Fatalf("err: %s", err)
}
defer m.Shutdown()
crypt, err := m.encryptLocalState(state)
if err != nil {
t.Fatalf("err: %v", err)
}
// Create reader, seek past the type byte
buf := bytes.NewReader(crypt)
buf.Seek(1, 0)
plain, err := m.decryptRemoteState(buf)
if err != nil {
t.Fatalf("err: %v", err)
}
if !reflect.DeepEqual(state, plain) {
t.Fatalf("Decrypt failed: %v", plain)
}
}
func TestRawSendUdp_CRC(t *testing.T) {
m := GetMemberlist(t)
m.config.EnableCompression = false
defer m.Shutdown()
var udp *net.UDPConn
for port := 60000; port < 61000; port++ {
udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
udpLn, err := net.ListenPacket("udp", udpAddr)
if err == nil {
udp = udpLn.(*net.UDPConn)
break
}
}
if udp == nil {
t.Fatalf("no udp listener")
}
// Pass a nil node with no nodes registered, should result in no checksum
payload := []byte{3, 3, 3, 3}
m.rawSendMsgPacket(udp.LocalAddr().String(), nil, payload)
in := make([]byte, 1500)
n, _, err := udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
if len(in) != 4 {
t.Fatalf("bad: %v", in)
}
// Pass a non-nil node with PMax >= 5, should result in a checksum
m.rawSendMsgPacket(udp.LocalAddr().String(), &Node{PMax: 5}, payload)
in = make([]byte, 1500)
n, _, err = udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
if len(in) != 9 {
t.Fatalf("bad: %v", in)
}
// Register a node with PMax >= 5 to be looked up, should result in a checksum
m.nodeMap["127.0.0.1"] = &nodeState{
Node: Node{PMax: 5},
}
m.rawSendMsgPacket(udp.LocalAddr().String(), nil, payload)
in = make([]byte, 1500)
n, _, err = udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
if len(in) != 9 {
t.Fatalf("bad: %v", in)
}
}
func TestIngestPacket_CRC(t *testing.T) {
m := GetMemberlist(t)
m.config.EnableCompression = false
defer m.Shutdown()
var udp *net.UDPConn
for port := 60000; port < 61000; port++ {
udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
udpLn, err := net.ListenPacket("udp", udpAddr)
if err == nil {
udp = udpLn.(*net.UDPConn)
break
}
}
if udp == nil {
t.Fatalf("no udp listener")
}
// Get a message with a checksum
payload := []byte{3, 3, 3, 3}
m.rawSendMsgPacket(udp.LocalAddr().String(), &Node{PMax: 5}, payload)
in := make([]byte, 1500)
n, _, err := udp.ReadFrom(in)
if err != nil {
t.Fatalf("unexpected err %s", err)
}
in = in[0:n]
if len(in) != 9 {
t.Fatalf("bad: %v", in)
}
// Corrupt the checksum
in[1] <<= 1
logs := &bytes.Buffer{}
logger := log.New(logs, "", 0)
m.logger = logger
m.ingestPacket(in, udp.LocalAddr(), time.Now())
if !strings.Contains(logs.String(), "invalid checksum") {
t.Fatalf("bad: %s", logs.String())
}
}
|