func NewCoin(index int64, value btcutil.Amount, numConfs int64) coinset.Coin {
	h := fastsha256.New()
	h.Write([]byte(fmt.Sprintf("%d", index)))
	hash, _ := wire.NewShaHash(h.Sum(nil))
	c := &TestCoin{
		TxHash:     hash,
		TxIndex:    0,
		TxValue:    value,
		TxNumConfs: numConfs,
	}
	return coinset.Coin(c)
}
// BenchmarkMruInventoryList performs basic benchmarks on the most recently
// used inventory handling.
func BenchmarkMruInventoryList(b *testing.B) {
	// Create a bunch of fake inventory vectors to use in benchmarking
	// the mru inventory code.
	b.StopTimer()
	numInvVects := 100000
	invVects := make([]*wire.InvVect, 0, numInvVects)
	for i := 0; i < numInvVects; i++ {
		hashBytes := make([]byte, wire.HashSize)
		rand.Read(hashBytes)
		hash, _ := wire.NewShaHash(hashBytes)
		iv := wire.NewInvVect(wire.InvTypeBlock, hash)
		invVects = append(invVects, iv)
	}
	b.StartTimer()

	// Benchmark the add plus evicition code.
	limit := 20000
	mruInvMap := NewMruInventoryMap(uint(limit))
	for i := 0; i < b.N; i++ {
		mruInvMap.Add(invVects[i%numInvVects])
	}
}
// TestMerkleBlock tests the MsgMerkleBlock API.
func TestMerkleBlock(t *testing.T) {
	pver := wire.ProtocolVersion

	// Block 1 header.
	prevHash := &blockOne.Header.PrevBlock
	merkleHash := &blockOne.Header.MerkleRoot
	bits := blockOne.Header.Bits
	nonce := blockOne.Header.Nonce
	bh := wire.NewBlockHeader(prevHash, merkleHash, bits, nonce)

	// Ensure the command is expected value.
	wantCmd := "merkleblock"
	msg := wire.NewMsgMerkleBlock(bh)
	if cmd := msg.Command(); cmd != wantCmd {
		t.Errorf("NewMsgBlock: wrong command - got %v want %v",
			cmd, wantCmd)
	}

	// Ensure max payload is expected value for latest protocol version.
	// Num addresses (varInt) + max allowed addresses.
	wantPayload := uint32(1000000)
	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)
	}

	// Load maxTxPerBlock hashes
	data := make([]byte, 32)
	for i := 0; i < wire.MaxTxPerBlock; i++ {
		rand.Read(data)
		hash, err := wire.NewShaHash(data)
		if err != nil {
			t.Errorf("NewShaHash failed: %v\n", err)
			return
		}

		if err = msg.AddTxHash(hash); err != nil {
			t.Errorf("AddTxHash failed: %v\n", err)
			return
		}
	}

	// Add one more Tx to test failure.
	rand.Read(data)
	hash, err := wire.NewShaHash(data)
	if err != nil {
		t.Errorf("NewShaHash failed: %v\n", err)
		return
	}

	if err = msg.AddTxHash(hash); err == nil {
		t.Errorf("AddTxHash succeeded when it should have failed")
		return
	}

	// Test encode with latest protocol version.
	var buf bytes.Buffer
	err = msg.BtcEncode(&buf, pver)
	if err != nil {
		t.Errorf("encode of MsgMerkleBlock failed %v err <%v>", msg, err)
	}

	// Test decode with latest protocol version.
	readmsg := wire.MsgMerkleBlock{}
	err = readmsg.BtcDecode(&buf, pver)
	if err != nil {
		t.Errorf("decode of MsgMerkleBlock failed [%v] err <%v>", buf, err)
	}

	// Force extra hash to test maxTxPerBlock.
	msg.Hashes = append(msg.Hashes, hash)
	err = msg.BtcEncode(&buf, pver)
	if err == nil {
		t.Errorf("encode of MsgMerkleBlock succeeded with too many " +
			"tx hashes when it should have failed")
		return
	}

	// Force too many flag bytes to test maxFlagsPerMerkleBlock.
	// Reset the number of hashes back to a valid value.
	msg.Hashes = msg.Hashes[len(msg.Hashes)-1:]
	msg.Flags = make([]byte, wire.MaxFlagsPerMerkleBlock+1)
	err = msg.BtcEncode(&buf, pver)
	if err == nil {
		t.Errorf("encode of MsgMerkleBlock succeeded with too many " +
			"flag bytes when it should have failed")
		return
	}
}
Example #4
0
// TestShaHash tests the ShaHash API.
func TestShaHash(t *testing.T) {

	// Hash of block 234439.
	blockHashStr := "14a0810ac680a3eb3f82edc878cea25ec41d6b790744e5daeef"
	blockHash, err := wire.NewShaHashFromStr(blockHashStr)
	if err != nil {
		t.Errorf("NewShaHashFromStr: %v", err)
	}

	// Hash of block 234440 as byte slice.
	buf := []byte{
		0x79, 0xa6, 0x1a, 0xdb, 0xc6, 0xe5, 0xa2, 0xe1,
		0x39, 0xd2, 0x71, 0x3a, 0x54, 0x6e, 0xc7, 0xc8,
		0x75, 0x63, 0x2e, 0x75, 0xf1, 0xdf, 0x9c, 0x3f,
		0xa6, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	}

	hash, err := wire.NewShaHash(buf)
	if err != nil {
		t.Errorf("NewShaHash: unexpected error %v", err)
	}

	// Ensure proper size.
	if len(hash) != wire.HashSize {
		t.Errorf("NewShaHash: hash length mismatch - got: %v, want: %v",
			len(hash), wire.HashSize)
	}

	// Ensure contents match.
	if !bytes.Equal(hash[:], buf) {
		t.Errorf("NewShaHash: hash contents mismatch - got: %v, want: %v",
			hash[:], buf)
	}

	// Ensure contents of hash of block 234440 don't match 234439.
	if hash.IsEqual(blockHash) {
		t.Errorf("IsEqual: hash contents should not match - got: %v, want: %v",
			hash, blockHash)
	}

	// Set hash from byte slice and ensure contents match.
	err = hash.SetBytes(blockHash.Bytes())
	if err != nil {
		t.Errorf("SetBytes: %v", err)
	}
	if !hash.IsEqual(blockHash) {
		t.Errorf("IsEqual: hash contents mismatch - got: %v, want: %v",
			hash, blockHash)
	}

	// Invalid size for SetBytes.
	err = hash.SetBytes([]byte{0x00})
	if err == nil {
		t.Errorf("SetBytes: failed to received expected err - got: nil")
	}

	// Invalid size for NewShaHash.
	invalidHash := make([]byte, wire.HashSize+1)
	_, err = wire.NewShaHash(invalidHash)
	if err == nil {
		t.Errorf("NewShaHash: failed to received expected err - got: nil")
	}
}