// TestRejectWireErrors performs negative tests against wire encode and decode
// of MsgReject to confirm error paths work correctly.
func TestRejectWireErrors(t *testing.T) {
pver := wire.ProtocolVersion
baseReject := wire.NewMsgReject("block", wire.RejectDuplicate,
"duplicate block")
baseReject.Hash = mainNetGenesisHash
baseRejectEncoded := []byte{
0x05, 0x62, 0x6c, 0x6f, 0x63, 0x6b, // "block"
0x12, // wire.RejectDuplicate
0x0f, 0x64, 0x75, 0x70, 0x6c, 0x69, 0x63, 0x61,
0x74, 0x65, 0x20, 0x62, 0x6c, 0x6f, 0x63, 0x6b, // "duplicate block"
0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // mainNetGenesisHash
}
tests := []struct {
in *wire.MsgReject // Value to encode
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
max int // Max size of fixed buffer to induce errors
writeErr error // Expected write error
readErr error // Expected read error
}{
// Latest protocol version with intentional read/write errors.
// Force error in reject command.
{baseReject, baseRejectEncoded, pver, 0, io.ErrShortWrite, io.EOF},
// Force error in reject code.
{baseReject, baseRejectEncoded, pver, 6, io.ErrShortWrite, io.EOF},
// Force error in reject reason.
{baseReject, baseRejectEncoded, pver, 7, io.ErrShortWrite, io.EOF},
// Force error in reject hash.
{baseReject, baseRejectEncoded, pver, 23, io.ErrShortWrite, io.EOF},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode to wire format.
w := newFixedWriter(test.max)
err := test.in.BtcEncode(w, test.pver)
if reflect.TypeOf(err) != reflect.TypeOf(test.writeErr) {
t.Errorf("BtcEncode #%d wrong error got: %v, want: %v",
i, err, test.writeErr)
continue
}
// For errors which are not of type wire.MessageError, check
// them for equality.
if _, ok := err.(*wire.MessageError); !ok {
if err != test.writeErr {
t.Errorf("BtcEncode #%d wrong error got: %v, "+
"want: %v", i, err, test.writeErr)
continue
}
}
// Decode from wire format.
var msg wire.MsgReject
r := newFixedReader(test.max, test.buf)
err = msg.BtcDecode(r, test.pver)
if reflect.TypeOf(err) != reflect.TypeOf(test.readErr) {
t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
i, err, test.readErr)
continue
}
// For errors which are not of type wire.MessageError, check
// them for equality.
if _, ok := err.(*wire.MessageError); !ok {
if err != test.readErr {
t.Errorf("BtcDecode #%d wrong error got: %v, "+
"want: %v", i, err, test.readErr)
continue
}
}
}
}
// TestRejectLatest tests the MsgPong API against the latest protocol version.
func TestRejectLatest(t *testing.T) {
pver := wire.ProtocolVersion
// Create reject message data.
rejCommand := (&wire.MsgBlock{}).Command()
rejCode := wire.RejectDuplicate
rejReason := "duplicate block"
rejHash := mainNetGenesisHash
// Ensure we get the correct data back out.
msg := wire.NewMsgReject(rejCommand, rejCode, rejReason)
msg.Hash = rejHash
if msg.Cmd != rejCommand {
t.Errorf("NewMsgReject: wrong rejected command - got %v, "+
"want %v", msg.Cmd, rejCommand)
}
if msg.Code != rejCode {
t.Errorf("NewMsgReject: wrong rejected code - got %v, "+
"want %v", msg.Code, rejCode)
}
if msg.Reason != rejReason {
t.Errorf("NewMsgReject: wrong rejected reason - got %v, "+
"want %v", msg.Reason, rejReason)
}
// Ensure the command is expected value.
wantCmd := "reject"
if cmd := msg.Command(); cmd != wantCmd {
t.Errorf("NewMsgReject: wrong command - got %v want %v",
cmd, wantCmd)
}
// Ensure max payload is expected value for latest protocol version.
wantPayload := uint32(wire.MaxMessagePayload)
maxPayload := msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Test encode with latest protocol version.
var buf bytes.Buffer
err := msg.BtcEncode(&buf, pver)
if err != nil {
t.Errorf("encode of MsgReject failed %v err <%v>", msg, err)
}
// Test decode with latest protocol version.
readMsg := wire.MsgReject{}
err = readMsg.BtcDecode(&buf, pver)
if err != nil {
t.Errorf("decode of MsgReject failed %v err <%v>", buf.Bytes(),
err)
}
// Ensure decoded data is the same.
if msg.Cmd != readMsg.Cmd {
t.Errorf("Should get same reject command - got %v, want %v",
readMsg.Cmd, msg.Cmd)
}
if msg.Code != readMsg.Code {
t.Errorf("Should get same reject code - got %v, want %v",
readMsg.Code, msg.Code)
}
if msg.Reason != readMsg.Reason {
t.Errorf("Should get same reject reason - got %v, want %v",
readMsg.Reason, msg.Reason)
}
if msg.Hash != readMsg.Hash {
t.Errorf("Should get same reject hash - got %v, want %v",
readMsg.Hash, msg.Hash)
}
}
// TestRejectWire tests the MsgReject wire encode and decode for various
// protocol versions.
func TestRejectWire(t *testing.T) {
tests := []struct {
msg wire.MsgReject // Message to encode
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
}{
// Latest protocol version rejected command version (no hash).
{
wire.MsgReject{
Cmd: "version",
Code: wire.RejectDuplicate,
Reason: "duplicate version",
},
[]byte{
0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, // "version"
0x12, // wire.RejectDuplicate
0x11, 0x64, 0x75, 0x70, 0x6c, 0x69, 0x63, 0x61,
0x74, 0x65, 0x20, 0x76, 0x65, 0x72, 0x73, 0x69,
0x6f, 0x6e, // "duplicate version"
},
wire.ProtocolVersion,
},
// Latest protocol version rejected command block (has hash).
{
wire.MsgReject{
Cmd: "block",
Code: wire.RejectDuplicate,
Reason: "duplicate block",
Hash: mainNetGenesisHash,
},
[]byte{
0x05, 0x62, 0x6c, 0x6f, 0x63, 0x6b, // "block"
0x12, // wire.RejectDuplicate
0x0f, 0x64, 0x75, 0x70, 0x6c, 0x69, 0x63, 0x61,
0x74, 0x65, 0x20, 0x62, 0x6c, 0x6f, 0x63, 0x6b, // "duplicate block"
0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // mainNetGenesisHash
},
wire.ProtocolVersion,
},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode the message to wire format.
var buf bytes.Buffer
err := test.msg.BtcEncode(&buf, test.pver)
if err != nil {
t.Errorf("BtcEncode #%d error %v", i, err)
continue
}
if !bytes.Equal(buf.Bytes(), test.buf) {
t.Errorf("BtcEncode #%d\n got: %s want: %s", i,
spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
continue
}
// Decode the message from wire format.
var msg wire.MsgReject
rbuf := bytes.NewReader(test.buf)
err = msg.BtcDecode(rbuf, test.pver)
if err != nil {
t.Errorf("BtcDecode #%d error %v", i, err)
continue
}
if !reflect.DeepEqual(msg, test.msg) {
t.Errorf("BtcDecode #%d\n got: %s want: %s", i,
spew.Sdump(msg), spew.Sdump(test.msg))
continue
}
}
}