Add negative tests for MsgVersion.
This commit adds tests for the error paths when encoding and decoding MsgVersion.
This commit is contained in:
Dave Collins
parent
3aef93f442
commit
f9b6375d5b
2 changed files with 139 additions and 31 deletions
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@ -8,8 +8,10 @@ import (
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"bytes"
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"github.com/conformal/btcwire"
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"github.com/davecgh/go-spew/spew"
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"io"
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"net"
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"reflect"
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"strings"
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"testing"
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"time"
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)
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@ -225,6 +227,112 @@ func TestVersionWire(t *testing.T) {
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}
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}
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// TestVersionWireErrors performs negative tests against wire encode and
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// decode of MsgGetHeaders to confirm error paths work correctly.
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func TestVersionWireErrors(t *testing.T) {
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// Use protocol version 60002 specifically here instead of the latest
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// because the test data is using bytes encoded with that protocol
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// version.
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pver := uint32(60002)
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btcwireErr := &btcwire.MessageError{}
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// Copy the base version and change the user agent to exceed max limits.
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bvc := *baseVersion
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exceedUAVer := &bvc
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newUA := "/" + strings.Repeat("t", btcwire.MaxUserAgentLen-8+1) + ":0.0.1/"
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exceedUAVer.UserAgent = newUA
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// Encode the new UA length as a varint.
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var newUAVarIntBuf bytes.Buffer
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err := btcwire.TstWriteVarInt(&newUAVarIntBuf, pver, uint64(len(newUA)))
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if err != nil {
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t.Errorf("writeVarInt: error %v", err)
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}
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// Make a new buffer big enough to hold the base version plus the new
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// bytes for the bigger varint to hold the new size of the user agent
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// and the new user agent string. Then stich it all together.
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newLen := len(baseVersionEncoded) - len(baseVersion.UserAgent)
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newLen = newLen + len(newUAVarIntBuf.Bytes()) - 1 + len(newUA)
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exceedUAVerEncoded := make([]byte, newLen)
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copy(exceedUAVerEncoded, baseVersionEncoded[0:80])
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copy(exceedUAVerEncoded[80:], newUAVarIntBuf.Bytes())
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copy(exceedUAVerEncoded[83:], []byte(newUA))
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copy(exceedUAVerEncoded[83+len(newUA):], baseVersionEncoded[97:100])
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tests := []struct {
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in *btcwire.MsgVersion // Value to encode
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buf []byte // Wire encoding
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pver uint32 // Protocol version for wire encoding
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max int // Max size of fixed buffer to induce errors
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writeErr error // Expected write error
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readErr error // Expected read error
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}{
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// Force error in protocol version.
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{baseVersion, baseVersionEncoded, pver, 0, io.ErrShortWrite, io.EOF},
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// Force error in services.
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{baseVersion, baseVersionEncoded, pver, 4, io.ErrShortWrite, io.EOF},
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// Force error in timestamp.
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{baseVersion, baseVersionEncoded, pver, 12, io.ErrShortWrite, io.EOF},
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// Force error in remote address.
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{baseVersion, baseVersionEncoded, pver, 20, io.ErrShortWrite, io.EOF},
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// Force error in local address.
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{baseVersion, baseVersionEncoded, pver, 46, io.ErrShortWrite, io.EOF},
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// Force error in nonce.
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{baseVersion, baseVersionEncoded, pver, 72, io.ErrShortWrite, io.EOF},
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// Force error in user agent length.
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{baseVersion, baseVersionEncoded, pver, 80, io.ErrShortWrite, io.EOF},
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// Force error in user agent.
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{baseVersion, baseVersionEncoded, pver, 81, io.ErrShortWrite, io.EOF},
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// Force error in last block.
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{baseVersion, baseVersionEncoded, pver, 97, io.ErrShortWrite, io.EOF},
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// Force error due to user agent too big.
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{exceedUAVer, exceedUAVerEncoded, pver, newLen, btcwireErr, btcwireErr},
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}
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t.Logf("Running %d tests", len(tests))
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for i, test := range tests {
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// Encode to wire format.
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w := newFixedWriter(test.max)
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err := test.in.BtcEncode(w, test.pver)
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if reflect.TypeOf(err) != reflect.TypeOf(test.writeErr) {
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t.Errorf("BtcEncode #%d wrong error got: %v, want: %v",
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i, err, test.writeErr)
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continue
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}
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// For errors which are not of type btcwire.MessageError, check
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// them for equality.
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if _, ok := err.(*btcwire.MessageError); !ok {
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if err != test.writeErr {
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t.Errorf("BtcEncode #%d wrong error got: %v, "+
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"want: %v", i, err, test.writeErr)
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continue
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}
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}
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// Decode from wire format.
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var msg btcwire.MsgVersion
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r := newFixedReader(test.max, test.buf)
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err = msg.BtcDecode(r, test.pver)
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if reflect.TypeOf(err) != reflect.TypeOf(test.readErr) {
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t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
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i, err, test.readErr)
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continue
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}
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// For errors which are not of type btcwire.MessageError, check
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// them for equality.
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if _, ok := err.(*btcwire.MessageError); !ok {
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if err != test.readErr {
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t.Errorf("BtcDecode #%d wrong error got: %v, "+
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"want: %v", i, err, test.readErr)
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continue
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}
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}
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}
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}
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// baseVersion is used in the various tests as a baseline MsgVersion.
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var baseVersion *btcwire.MsgVersion = &btcwire.MsgVersion{
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ProtocolVersion: 60002,
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@ -1,10 +1,12 @@
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github.com/conformal/btcwire/message.go ReadMessage 100.00% (37/37)
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github.com/conformal/btcwire/message.go WriteMessage 100.00% (27/27)
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github.com/conformal/btcwire/msgversion.go MsgVersion.BtcDecode 100.00% (25/25)
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github.com/conformal/btcwire/msgtx.go MsgTx.Copy 100.00% (24/24)
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github.com/conformal/btcwire/common.go readVarInt 100.00% (24/24)
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github.com/conformal/btcwire/message.go makeEmptyMessage 100.00% (20/20)
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github.com/conformal/btcwire/msgversion.go MsgVersion.BtcEncode 100.00% (22/22)
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github.com/conformal/btcwire/netaddress.go readNetAddress 100.00% (20/20)
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github.com/conformal/btcwire/message.go makeEmptyMessage 100.00% (20/20)
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github.com/conformal/btcwire/msggetblocks.go MsgGetBlocks.BtcDecode 100.00% (19/19)
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github.com/conformal/btcwire/msggetheaders.go MsgGetHeaders.BtcDecode 100.00% (19/19)
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github.com/conformal/btcwire/msggetblocks.go MsgGetBlocks.BtcEncode 100.00% (18/18)
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@ -12,35 +14,34 @@ github.com/conformal/btcwire/msggetheaders.go MsgGetHeaders.BtcEncode 100.00%
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github.com/conformal/btcwire/msgblock.go MsgBlock.BtcDecodeTxLoc 100.00% (16/16)
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github.com/conformal/btcwire/common.go writeVarInt 100.00% (16/16)
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github.com/conformal/btcwire/msgheaders.go MsgHeaders.BtcDecode 100.00% (16/16)
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github.com/conformal/btcwire/shahash.go NewShaHashFromStr 100.00% (15/15)
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github.com/conformal/btcwire/msgaddr.go MsgAddr.BtcEncode 100.00% (15/15)
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github.com/conformal/btcwire/msgheaders.go MsgHeaders.BtcEncode 100.00% (15/15)
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github.com/conformal/btcwire/shahash.go NewShaHashFromStr 100.00% (15/15)
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github.com/conformal/btcwire/netaddress.go writeNetAddress 100.00% (14/14)
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github.com/conformal/btcwire/msginv.go MsgInv.BtcDecode 100.00% (13/13)
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github.com/conformal/btcwire/msggetdata.go MsgGetData.BtcDecode 100.00% (13/13)
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github.com/conformal/btcwire/msginv.go MsgInv.BtcDecode 100.00% (13/13)
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github.com/conformal/btcwire/msgnotfound.go MsgNotFound.BtcDecode 100.00% (13/13)
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github.com/conformal/btcwire/msgaddr.go MsgAddr.BtcDecode 100.00% (13/13)
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github.com/conformal/btcwire/msginv.go MsgInv.BtcEncode 100.00% (12/12)
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github.com/conformal/btcwire/msggetdata.go MsgGetData.BtcEncode 100.00% (12/12)
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github.com/conformal/btcwire/msgnotfound.go MsgNotFound.BtcEncode 100.00% (12/12)
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github.com/conformal/btcwire/protocol.go ServiceFlag.String 100.00% (12/12)
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github.com/conformal/btcwire/msgnotfound.go MsgNotFound.BtcEncode 100.00% (12/12)
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github.com/conformal/btcwire/message.go discardInput 100.00% (10/10)
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github.com/conformal/btcwire/msgblock.go MsgBlock.BtcDecode 100.00% (10/10)
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github.com/conformal/btcwire/blockheader.go readBlockHeader 100.00% (10/10)
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github.com/conformal/btcwire/message.go discardInput 100.00% (10/10)
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github.com/conformal/btcwire/msgblock.go MsgBlock.BtcEncode 100.00% (9/9)
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github.com/conformal/btcwire/msgalert.go MsgAlert.BtcEncode 100.00% (8/8)
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github.com/conformal/btcwire/blockheader.go writeBlockHeader 100.00% (8/8)
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github.com/conformal/btcwire/msgalert.go MsgAlert.BtcDecode 100.00% (8/8)
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github.com/conformal/btcwire/common.go readVarString 100.00% (8/8)
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github.com/conformal/btcwire/msgpong.go MsgPong.BtcEncode 100.00% (7/7)
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github.com/conformal/btcwire/common.go randomUint64 100.00% (7/7)
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github.com/conformal/btcwire/msgalert.go MsgAlert.BtcEncode 100.00% (8/8)
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github.com/conformal/btcwire/blockheader.go writeBlockHeader 100.00% (8/8)
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github.com/conformal/btcwire/common.go writeVarString 100.00% (7/7)
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github.com/conformal/btcwire/msgversion.go NewMsgVersionFromConn 100.00% (7/7)
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github.com/conformal/btcwire/msgpong.go MsgPong.BtcDecode 100.00% (7/7)
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github.com/conformal/btcwire/message.go readMessageHeader 100.00% (7/7)
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github.com/conformal/btcwire/common.go DoubleSha256 100.00% (7/7)
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github.com/conformal/btcwire/shahash.go NewShaHash 100.00% (5/5)
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github.com/conformal/btcwire/common.go writeElements 100.00% (5/5)
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github.com/conformal/btcwire/common.go randomUint64 100.00% (7/7)
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github.com/conformal/btcwire/msgpong.go MsgPong.BtcEncode 100.00% (7/7)
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github.com/conformal/btcwire/msgversion.go NewMsgVersionFromConn 100.00% (7/7)
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github.com/conformal/btcwire/msgpong.go MsgPong.BtcDecode 100.00% (7/7)
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github.com/conformal/btcwire/blockheader.go BlockHeader.BlockSha 100.00% (5/5)
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github.com/conformal/btcwire/msginv.go MsgInv.AddInvVect 100.00% (5/5)
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github.com/conformal/btcwire/msgnotfound.go MsgNotFound.AddInvVect 100.00% (5/5)
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github.com/conformal/btcwire/msgping.go MsgPing.BtcDecode 100.00% (5/5)
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@ -48,33 +49,34 @@ github.com/conformal/btcwire/msgping.go MsgPing.BtcEncode 100.00% (5/5)
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github.com/conformal/btcwire/msgblock.go MsgBlock.TxShas 100.00% (5/5)
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github.com/conformal/btcwire/common.go readElements 100.00% (5/5)
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github.com/conformal/btcwire/msgtx.go MsgTx.TxSha 100.00% (5/5)
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github.com/conformal/btcwire/shahash.go NewShaHash 100.00% (5/5)
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github.com/conformal/btcwire/shahash.go ShaHash.SetBytes 100.00% (5/5)
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github.com/conformal/btcwire/blockheader.go BlockHeader.BlockSha 100.00% (5/5)
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github.com/conformal/btcwire/netaddress.go NewNetAddress 100.00% (5/5)
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github.com/conformal/btcwire/msggetblocks.go MsgGetBlocks.AddBlockLocatorHash 100.00% (5/5)
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github.com/conformal/btcwire/msgaddr.go MsgAddr.AddAddress 100.00% (5/5)
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github.com/conformal/btcwire/msggetdata.go MsgGetData.AddInvVect 100.00% (5/5)
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github.com/conformal/btcwire/msgaddr.go MsgAddr.AddAddress 100.00% (5/5)
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github.com/conformal/btcwire/msggetheaders.go MsgGetHeaders.AddBlockLocatorHash 100.00% (5/5)
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github.com/conformal/btcwire/msgaddr.go MsgAddr.AddAddresses 100.00% (5/5)
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github.com/conformal/btcwire/msgheaders.go MsgHeaders.AddBlockHeader 100.00% (5/5)
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github.com/conformal/btcwire/shahash.go ShaHash.String 100.00% (4/4)
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github.com/conformal/btcwire/invvect.go writeInvVect 100.00% (4/4)
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github.com/conformal/btcwire/common.go writeElements 100.00% (5/5)
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github.com/conformal/btcwire/netaddress.go maxNetAddressPayload 100.00% (4/4)
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github.com/conformal/btcwire/invvect.go readInvVect 100.00% (4/4)
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github.com/conformal/btcwire/msgmempool.go MsgMemPool.BtcDecode 100.00% (4/4)
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github.com/conformal/btcwire/msgping.go MsgPing.MaxPayloadLength 100.00% (4/4)
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github.com/conformal/btcwire/msgpong.go MsgPong.MaxPayloadLength 100.00% (4/4)
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github.com/conformal/btcwire/msgmempool.go MsgMemPool.BtcEncode 100.00% (4/4)
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github.com/conformal/btcwire/msgpong.go MsgPong.MaxPayloadLength 100.00% (4/4)
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github.com/conformal/btcwire/msgping.go MsgPing.MaxPayloadLength 100.00% (4/4)
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github.com/conformal/btcwire/msgmempool.go MsgMemPool.BtcDecode 100.00% (4/4)
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github.com/conformal/btcwire/invvect.go writeInvVect 100.00% (4/4)
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github.com/conformal/btcwire/shahash.go ShaHash.String 100.00% (4/4)
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github.com/conformal/btcwire/msgblock.go MsgBlock.AddTransaction 100.00% (3/3)
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github.com/conformal/btcwire/invvect.go InvType.String 100.00% (3/3)
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github.com/conformal/btcwire/error.go MessageError.Error 100.00% (3/3)
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github.com/conformal/btcwire/shahash.go ShaHash.Bytes 100.00% (3/3)
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github.com/conformal/btcwire/msgaddr.go MsgAddr.MaxPayloadLength 100.00% (3/3)
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github.com/conformal/btcwire/netaddress.go NetAddress.HasService 100.00% (3/3)
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github.com/conformal/btcwire/msgversion.go MsgVersion.HasService 100.00% (3/3)
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github.com/conformal/btcwire/netaddress.go NetAddress.SetAddress 100.00% (2/2)
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github.com/conformal/btcwire/shahash.go ShaHash.Bytes 100.00% (3/3)
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github.com/conformal/btcwire/invvect.go InvType.String 100.00% (3/3)
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github.com/conformal/btcwire/error.go MessageError.Error 100.00% (3/3)
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github.com/conformal/btcwire/msgaddr.go MsgAddr.MaxPayloadLength 100.00% (3/3)
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github.com/conformal/btcwire/msgblock.go MsgBlock.ClearTransactions 100.00% (2/2)
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github.com/conformal/btcwire/invvect.go NewInvVect 100.00% (1/1)
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github.com/conformal/btcwire/netaddress.go NetAddress.SetAddress 100.00% (2/2)
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github.com/conformal/btcwire/msgheaders.go MsgHeaders.Command 100.00% (1/1)
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github.com/conformal/btcwire/blockheader.go NewBlockHeader 100.00% (1/1)
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github.com/conformal/btcwire/common.go readElement 100.00% (1/1)
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github.com/conformal/btcwire/common.go writeElement 100.00% (1/1)
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@ -104,7 +106,6 @@ github.com/conformal/btcwire/msggetdata.go NewMsgGetData 100.00% (1/1)
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github.com/conformal/btcwire/msggetheaders.go MsgGetHeaders.Command 100.00% (1/1)
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github.com/conformal/btcwire/msggetheaders.go MsgGetHeaders.MaxPayloadLength 100.00% (1/1)
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github.com/conformal/btcwire/msggetheaders.go NewMsgGetHeaders 100.00% (1/1)
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github.com/conformal/btcwire/msgheaders.go MsgHeaders.Command 100.00% (1/1)
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github.com/conformal/btcwire/msgheaders.go MsgHeaders.MaxPayloadLength 100.00% (1/1)
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github.com/conformal/btcwire/msgheaders.go NewMsgHeaders 100.00% (1/1)
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github.com/conformal/btcwire/msginv.go MsgInv.Command 100.00% (1/1)
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@ -139,15 +140,14 @@ github.com/conformal/btcwire/msgversion.go MsgVersion.MaxPayloadLength 100.00
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github.com/conformal/btcwire/msgversion.go NewMsgVersion 100.00% (1/1)
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github.com/conformal/btcwire/netaddress.go NetAddress.AddService 100.00% (1/1)
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github.com/conformal/btcwire/shahash.go ShaHash.IsEqual 100.00% (1/1)
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github.com/conformal/btcwire/invvect.go NewInvVect 100.00% (1/1)
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github.com/conformal/btcwire/msgtx.go MsgTx.BtcDecode 80.00% (20/25)
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github.com/conformal/btcwire/msgtx.go MsgTx.BtcEncode 78.26% (18/23)
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github.com/conformal/btcwire/msgtx.go readTxIn 76.47% (13/17)
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github.com/conformal/btcwire/msgtx.go readTxOut 75.00% (9/12)
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github.com/conformal/btcwire/msgtx.go writeOutPoint 75.00% (3/4)
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github.com/conformal/btcwire/msgtx.go readOutPoint 75.00% (3/4)
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github.com/conformal/btcwire/msgtx.go writeOutPoint 75.00% (3/4)
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github.com/conformal/btcwire/msgtx.go writeTxIn 73.33% (11/15)
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github.com/conformal/btcwire/msgtx.go writeTxOut 72.73% (8/11)
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github.com/conformal/btcwire/msgversion.go MsgVersion.BtcDecode 68.00% (17/25)
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github.com/conformal/btcwire/msgversion.go MsgVersion.BtcEncode 63.64% (14/22)
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github.com/conformal/btcwire --------------------------------- 95.45% (881/923)
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github.com/conformal/btcwire --------------------------------- 97.18% (897/923)
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