// TestFilterClearCrossProtocol tests the MsgFilterClear API when encoding with
// the latest protocol version and decoding with BIP0031Version.
func TestFilterClearCrossProtocol(t *testing.T) {
msg := btcwire.NewMsgFilterClear()
// Encode with latest protocol version.
var buf bytes.Buffer
err := msg.BtcEncode(&buf, btcwire.ProtocolVersion)
if err != nil {
t.Errorf("encode of MsgFilterClear failed %v err <%v>", msg, err)
}
// Decode with old protocol version.
var readmsg btcwire.MsgFilterClear
err = readmsg.BtcDecode(&buf, btcwire.BIP0031Version)
if err == nil {
t.Errorf("decode of MsgFilterClear succeeded when it "+
"shouldn't have %v", msg)
}
}
// TestFilterClearWire tests the MsgFilterClear wire encode and decode for
// various protocol versions.
func TestFilterClearWire(t *testing.T) {
msgFilterClear := btcwire.NewMsgFilterClear()
msgFilterClearEncoded := []byte{}
tests := []struct {
in *btcwire.MsgFilterClear // Message to encode
out *btcwire.MsgFilterClear // Expected decoded message
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
}{
// Latest protocol version.
{
msgFilterClear,
msgFilterClear,
msgFilterClearEncoded,
btcwire.ProtocolVersion,
},
// Protocol version BIP0037Version + 1.
{
msgFilterClear,
msgFilterClear,
msgFilterClearEncoded,
btcwire.BIP0037Version + 1,
},
// Protocol version BIP0037Version.
{
msgFilterClear,
msgFilterClear,
msgFilterClearEncoded,
btcwire.BIP0037Version,
},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode the message to wire format.
var buf bytes.Buffer
err := test.in.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 btcwire.MsgFilterClear
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.out) {
t.Errorf("BtcDecode #%d\n got: %s want: %s", i,
spew.Sdump(msg), spew.Sdump(test.out))
continue
}
}
}
// TestFilterClearWireErrors performs negative tests against wire encode and
// decode of MsgFilterClear to confirm error paths work correctly.
func TestFilterClearWireErrors(t *testing.T) {
pverNoFilterClear := btcwire.BIP0037Version - 1
btcwireErr := &btcwire.MessageError{}
baseFilterClear := btcwire.NewMsgFilterClear()
baseFilterClearEncoded := []byte{}
tests := []struct {
in *btcwire.MsgFilterClear // 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
}{
// Force error due to unsupported protocol version.
{
baseFilterClear, baseFilterClearEncoded,
pverNoFilterClear, 4, 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.MsgFilterClear
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
}
}
}
}