// TestRejectBeforeAdded tests the MsgReject API against a protocol version
// before the version which introduced it (RejectVersion).
func TestRejectBeforeAdded(t *testing.T) {
// Use the protocol version just prior to RejectVersion.
pver := btcwire.RejectVersion - 1
// Create reject message data.
rejCommand := (&btcwire.MsgBlock{}).Command()
rejCode := btcwire.RejectDuplicate
rejReason := "duplicate block"
rejHash := mainNetGenesisHash
msg := btcwire.NewMsgReject(rejCommand, rejCode, rejReason)
msg.Hash = rejHash
// Ensure max payload is expected value for old protocol version.
size := msg.MaxPayloadLength(pver)
if size != 0 {
t.Errorf("Max length should be 0 for reject protocol version %d.",
pver)
}
// Test encode with old protocol version.
var buf bytes.Buffer
err := msg.BtcEncode(&buf, pver)
if err == nil {
t.Errorf("encode of MsgReject succeeded when it shouldn't "+
"have %v", msg)
}
// // Test decode with old protocol version.
readMsg := btcwire.MsgReject{}
err = readMsg.BtcDecode(&buf, pver)
if err == nil {
t.Errorf("decode of MsgReject succeeded when it shouldn't "+
"have %v", spew.Sdump(buf.Bytes()))
}
// Since this protocol version doesn't support reject, make sure various
// fields didn't get encoded and decoded back out.
if msg.Cmd == readMsg.Cmd {
t.Errorf("Should not get same reject command for protocol "+
"version %d", pver)
}
if msg.Code == readMsg.Code {
t.Errorf("Should not get same reject code for protocol "+
"version %d", pver)
}
if msg.Reason == readMsg.Reason {
t.Errorf("Should not get same reject reason for protocol "+
"version %d", pver)
}
if msg.Hash == readMsg.Hash {
t.Errorf("Should not get same reject hash for protocol "+
"version %d", pver)
}
}
// TestRejectCrossProtocol tests the MsgReject API when encoding with the latest
// protocol version and decoded with a version before the version which
// introduced it (RejectVersion).
func TestRejectCrossProtocol(t *testing.T) {
// Create reject message data.
rejCommand := (&btcwire.MsgBlock{}).Command()
rejCode := btcwire.RejectDuplicate
rejReason := "duplicate block"
rejHash := mainNetGenesisHash
msg := btcwire.NewMsgReject(rejCommand, rejCode, rejReason)
msg.Hash = rejHash
// Encode with latest protocol version.
var buf bytes.Buffer
err := msg.BtcEncode(&buf, btcwire.ProtocolVersion)
if err != nil {
t.Errorf("encode of MsgReject failed %v err <%v>", msg, err)
}
// Decode with old protocol version.
readMsg := btcwire.MsgReject{}
err = readMsg.BtcDecode(&buf, btcwire.RejectVersion-1)
if err == nil {
t.Errorf("encode of MsgReject succeeded when it shouldn't "+
"have %v", msg)
}
// Since one of the protocol versions doesn't support the reject
// message, make sure the various fields didn't get encoded and decoded
// back out.
if msg.Cmd == readMsg.Cmd {
t.Errorf("Should not get same reject command for cross protocol")
}
if msg.Code == readMsg.Code {
t.Errorf("Should not get same reject code for cross protocol")
}
if msg.Reason == readMsg.Reason {
t.Errorf("Should not get same reject reason for cross protocol")
}
if msg.Hash == readMsg.Hash {
t.Errorf("Should not get same reject hash for cross protocol")
}
}
// TestRejectLatest tests the MsgPong API against the latest protocol version.
func TestRejectLatest(t *testing.T) {
pver := btcwire.ProtocolVersion
// Create reject message data.
rejCommand := (&btcwire.MsgBlock{}).Command()
rejCode := btcwire.RejectDuplicate
rejReason := "duplicate block"
rejHash := mainNetGenesisHash
// Ensure we get the correct data back out.
msg := btcwire.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(btcwire.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 := btcwire.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)
}
}
// TestRejectWireErrors performs negative tests against wire encode and decode
// of MsgReject to confirm error paths work correctly.
func TestRejectWireErrors(t *testing.T) {
pver := btcwire.ProtocolVersion
pverNoReject := btcwire.RejectVersion - 1
btcwireErr := &btcwire.MessageError{}
baseReject := btcwire.NewMsgReject("block", btcwire.RejectDuplicate,
"duplicate block")
baseReject.Hash = mainNetGenesisHash
baseRejectEncoded := []byte{
0x05, 0x62, 0x6c, 0x6f, 0x63, 0x6b, // "block"
0x12, // btcwire.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 *btcwire.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},
// Force error due to unsupported protocol version.
{baseReject, baseRejectEncoded, pverNoReject, 6, btcwireErr, btcwireErr},
}
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 btcwire.MessageError, check
// them for equality.
if _, ok := err.(*btcwire.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 btcwire.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 btcwire.MessageError, check
// them for equality.
if _, ok := err.(*btcwire.MessageError); !ok {
if err != test.readErr {
t.Errorf("BtcDecode #%d wrong error got: %v, "+
"want: %v", i, err, test.readErr)
continue
}
}
}
}