lbcutil/block_test.go

// Copyright (c) 2013 Conformal Systems LLC.
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.

package btcutil_test

import (
	"bytes"
	"github.com/conformal/btcutil"
	"github.com/conformal/btcwire"
	"github.com/davecgh/go-spew/spew"
	"reflect"
	"testing"
	"time"
)

// TestBlock tests the API for Block.
func TestBlock(t *testing.T) {
	pver := btcwire.ProtocolVersion
	b := btcutil.NewBlock(&Block100000, pver)

	// Ensure we get the same data back out.
	if gotPver := b.ProtocolVersion(); gotPver != pver {
		t.Errorf("ProtocolVersion: wrong protocol version - got %v, want %v",
			gotPver, pver)
	}
	if msgBlock := b.MsgBlock(); !reflect.DeepEqual(msgBlock, &Block100000) {
		t.Errorf("MsgBlock: mismatched MsgBlock - got %v, want %v",
			spew.Sdump(msgBlock), spew.Sdump(&Block100000))
	}

	// Ensure block height set and get work properly.
	wantHeight := int64(100000)
	b.SetHeight(wantHeight)
	if gotHeight := b.Height(); gotHeight != wantHeight {
		t.Errorf("Height: mismatched height - got %v, want %v",
			gotHeight, wantHeight)
	}

	// Hash for block 100,000.
	wantShaStr := "3ba27aa200b1cecaad478d2b00432346c3f1f3986da1afd33e506"
	wantSha, err := btcwire.NewShaHashFromStr(wantShaStr)
	if err != nil {
		t.Errorf("NewShaHashFromStr: %v", err)
	}

	// Request the sha multiple times to test generation and caching.
	for i := 0; i < 2; i++ {
		sha, err := b.Sha()
		if err != nil {
			t.Errorf("Sha: %v", err)
			continue
		}
		if !sha.IsEqual(wantSha) {
			t.Errorf("Sha #%d mismatched sha - got %v, want %v", i,
				sha, wantSha)
		}
	}

	// Shas for the transactions in Block100000.
	wantTxShas := []string{
		"8c14f0db3df150123e6f3dbbf30f8b955a8249b62ac1d1ff16284aefa3d06d87",
		"fff2525b8931402dd09222c50775608f75787bd2b87e56995a7bdd30f79702c4",
		"6359f0868171b1d194cbee1af2f16ea598ae8fad666d9b012c8ed2b79a236ec4",
		"e9a66845e05d5abc0ad04ec80f774a7e585c6e8db975962d069a522137b80c1d",
	}

	// Request sha for all transactions one at a time.
	for i, txSha := range wantTxShas {
		wantSha, err := btcwire.NewShaHashFromStr(txSha)
		if err != nil {
			t.Errorf("NewShaHashFromStr: %v", err)
		}

		// Request the sha multiple times to test generation and caching.
		for j := 0; j < 2; j++ {
			sha, err := b.TxSha(i)
			if err != nil {
				t.Errorf("TxSha: %v", err)
				continue
			}
			if !sha.IsEqual(wantSha) {
				t.Errorf("TxSha #%d mismatched sha - got %v, "+
					"want %v", j, sha, wantSha)
				continue
			}
		}
	}

	// Create a new block to nuke all cached data.
	b = btcutil.NewBlock(&Block100000, pver)

	// Request slice of all transaction shas multiple times to test
	// generation and caching.
	for i := 0; i < 2; i++ {
		txShas, err := b.TxShas()
		if err != nil {
			t.Errorf("TxShas: %v", err)
			continue
		}

		// Ensure we get the expected number of transaction shas.
		if len(txShas) != len(wantTxShas) {
			t.Errorf("TxShas #%d mismatched number of shas -"+
				"got %d, want %d", i, len(txShas),
				len(wantTxShas))
			continue
		}

		// Ensure all of the shas match.
		for j, txSha := range wantTxShas {
			wantSha, err := btcwire.NewShaHashFromStr(txSha)
			if err != nil {
				t.Errorf("NewShaHashFromStr: %v", err)
			}

			if !txShas[j].IsEqual(wantSha) {
				t.Errorf("TxShas #%d mismatched shas - "+
					"got %v, want %v", j,
					spew.Sdump(txShas),
					spew.Sdump(wantTxShas))
				continue
			}
		}
	}

	// Encode the test block to bytes.
	var block100000Buf bytes.Buffer
	err = Block100000.BtcEncode(&block100000Buf, pver)
	if err != nil {
		t.Errorf("BtcEncode: %v", err)
	}
	block100000Bytes := block100000Buf.Bytes()

	// Request raw bytes multiple times to test generation and caching.
	for i := 0; i < 2; i++ {
		rawBytes, tmpPver, err := b.Bytes()
		if err != nil {
			t.Errorf("Bytes: %v", err)
			continue
		}
		if !bytes.Equal(rawBytes, block100000Bytes) {
			t.Errorf("Bytes #%d wrong bytes - got %v, want %v", i,
				spew.Sdump(rawBytes),
				spew.Sdump(block100000Bytes))
			continue
		}
		if tmpPver != pver {
			t.Errorf("Bytes #%d wrong protocol version - "+
				"got %v, want %v", i, spew.Sdump(rawBytes),
				spew.Sdump(block100000Bytes))
			continue

		}
	}

	// Transaction offsets and length for the transaction in Block100000.
	wantTxLocs := []btcwire.TxLoc{
		btcwire.TxLoc{TxStart: 81, TxLen: 135},
		btcwire.TxLoc{TxStart: 216, TxLen: 259},
		btcwire.TxLoc{TxStart: 475, TxLen: 257},
		btcwire.TxLoc{TxStart: 732, TxLen: 225},
	}

	// Ensure the transaction location information is accurate.
	txLocs, err := b.TxLoc()
	if err != nil {
		t.Errorf("TxLoc: %v", err)
		return
	}
	if !reflect.DeepEqual(txLocs, wantTxLocs) {
		t.Errorf("TxLoc: mismatched transaction location information "+
			"- got %v, want %v", spew.Sdump(txLocs),
			spew.Sdump(wantTxLocs))
	}
}

// TestNewBlockFromBytes tests creation of a Block from raw bytes.
func TestNewBlockFromBytes(t *testing.T) {
	// Encode the test block to bytes.
	pver := btcwire.ProtocolVersion
	var block100000Buf bytes.Buffer
	err := Block100000.BtcEncode(&block100000Buf, pver)
	if err != nil {
		t.Errorf("BtcEncode: %v", err)
	}
	block100000Bytes := block100000Buf.Bytes()

	// Create a new block from the encoded bytes.
	b, err := btcutil.NewBlockFromBytes(block100000Bytes, pver)
	if err != nil {
		t.Errorf("NewBlockFromBytes: %v", err)
		return
	}

	// Ensure we get the same data back out.
	rawBytes, tmpPver, err := b.Bytes()
	if err != nil {
		t.Errorf("Bytes: %v", err)
		return
	}
	if !bytes.Equal(rawBytes, block100000Bytes) {
		t.Errorf("Bytes: wrong bytes - got %v, want %v",
			spew.Sdump(rawBytes),
			spew.Sdump(block100000Bytes))
	}
	if tmpPver != pver {
		t.Errorf("Bytes: wrong protocol version - got %v, want %v",
			tmpPver, pver)
	}

	// Ensure the generated MsgBlock is correct.
	if msgBlock := b.MsgBlock(); !reflect.DeepEqual(msgBlock, &Block100000) {
		t.Errorf("MsgBlock: mismatched MsgBlock - got %v, want %v",
			spew.Sdump(msgBlock), spew.Sdump(&Block100000))
	}
}

// TestNewBlockFromBlockAndBytes tests creation of a Block from a MsgBlock and
// raw bytes.
func TestNewBlockFromBlockAndBytes(t *testing.T) {
	// Encode the test block to bytes.
	pver := btcwire.ProtocolVersion
	var block100000Buf bytes.Buffer
	err := Block100000.BtcEncode(&block100000Buf, pver)
	if err != nil {
		t.Errorf("BtcEncode: %v", err)
	}
	block100000Bytes := block100000Buf.Bytes()

	// Create a new block from the encoded bytes.
	b := btcutil.NewBlockFromBlockAndBytes(&Block100000,
		block100000Bytes, pver)

	// Ensure we get the same data back out.
	rawBytes, tmpPver, err := b.Bytes()
	if err != nil {
		t.Errorf("Bytes: %v", err)
		return
	}
	if !bytes.Equal(rawBytes, block100000Bytes) {
		t.Errorf("Bytes: wrong bytes - got %v, want %v",
			spew.Sdump(rawBytes),
			spew.Sdump(block100000Bytes))
	}
	if tmpPver != pver {
		t.Errorf("Bytes: wrong protocol version - got %v, want %v",
			tmpPver, pver)
	}
	if msgBlock := b.MsgBlock(); !reflect.DeepEqual(msgBlock, &Block100000) {
		t.Errorf("MsgBlock: mismatched MsgBlock - got %v, want %v",
			spew.Sdump(msgBlock), spew.Sdump(&Block100000))
	}
}

// Block100000 defines block 100,000 of the block chain.  It is used to
// test Block operations.
var Block100000 btcwire.MsgBlock = btcwire.MsgBlock{
	Header: btcwire.BlockHeader{
		Version: 1,
		PrevBlock: btcwire.ShaHash([32]byte{ // Make go vet happy.
			0x50, 0x12, 0x01, 0x19, 0x17, 0x2a, 0x61, 0x04,
			0x21, 0xa6, 0xc3, 0x01, 0x1d, 0xd3, 0x30, 0xd9,
			0xdf, 0x07, 0xb6, 0x36, 0x16, 0xc2, 0xcc, 0x1f,
			0x1c, 0xd0, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
		}), // 000000000002d01c1fccc21636b607dfd930d31d01c3a62104612a1719011250
		MerkleRoot: btcwire.ShaHash([32]byte{ // Make go vet happy.
			0x66, 0x57, 0xa9, 0x25, 0x2a, 0xac, 0xd5, 0xc0,
			0xb2, 0x94, 0x09, 0x96, 0xec, 0xff, 0x95, 0x22,
			0x28, 0xc3, 0x06, 0x7c, 0xc3, 0x8d, 0x48, 0x85,
			0xef, 0xb5, 0xa4, 0xac, 0x42, 0x47, 0xe9, 0xf3,
		}), // f3e94742aca4b5ef85488dc37c06c3282295ffec960994b2c0d5ac2a25a95766
		Timestamp: time.Unix(1293623863, 0), // 2010-12-29 11:57:43 +0000 UTC
		Bits:      0x1b04864c,               // 453281356
		Nonce:     0x10572b0f,               // 274148111
		TxnCount:  4,
	},
	Transactions: []*btcwire.MsgTx{
		&btcwire.MsgTx{
			Version: 1,
			TxIn: []*btcwire.TxIn{
				&btcwire.TxIn{
					PreviousOutpoint: btcwire.OutPoint{
						Hash:  btcwire.ShaHash{},
						Index: 0xffffffff,
					},
					SignatureScript: []byte{
						0x04, 0x4c, 0x86, 0x04, 0x1b, 0x02, 0x06, 0x02,
					},
					Sequence: 0xffffffff,
				},
			},
			TxOut: []*btcwire.TxOut{
				&btcwire.TxOut{
					Value: 0x12a05f200, // 5000000000
					PkScript: []byte{
						0x41, // OP_DATA_65
						0x04, 0x1b, 0x0e, 0x8c, 0x25, 0x67, 0xc1, 0x25,
						0x36, 0xaa, 0x13, 0x35, 0x7b, 0x79, 0xa0, 0x73,
						0xdc, 0x44, 0x44, 0xac, 0xb8, 0x3c, 0x4e, 0xc7,
						0xa0, 0xe2, 0xf9, 0x9d, 0xd7, 0x45, 0x75, 0x16,
						0xc5, 0x81, 0x72, 0x42, 0xda, 0x79, 0x69, 0x24,
						0xca, 0x4e, 0x99, 0x94, 0x7d, 0x08, 0x7f, 0xed,
						0xf9, 0xce, 0x46, 0x7c, 0xb9, 0xf7, 0xc6, 0x28,
						0x70, 0x78, 0xf8, 0x01, 0xdf, 0x27, 0x6f, 0xdf,
						0x84, // 65-byte signature
						0xac, // OP_CHECKSIG
					},
				},
			},
			LockTime: 0,
		},
		&btcwire.MsgTx{
			Version: 1,
			TxIn: []*btcwire.TxIn{
				&btcwire.TxIn{
					PreviousOutpoint: btcwire.OutPoint{
						Hash: btcwire.ShaHash([32]byte{ // Make go vet happy.
							0x03, 0x2e, 0x38, 0xe9, 0xc0, 0xa8, 0x4c, 0x60,
							0x46, 0xd6, 0x87, 0xd1, 0x05, 0x56, 0xdc, 0xac,
							0xc4, 0x1d, 0x27, 0x5e, 0xc5, 0x5f, 0xc0, 0x07,
							0x79, 0xac, 0x88, 0xfd, 0xf3, 0x57, 0xa1, 0x87,
						}), // 87a157f3fd88ac7907c05fc55e271dc4acdc5605d187d646604ca8c0e9382e03
						Index: 0,
					},
					SignatureScript: []byte{
						0x49, // OP_DATA_73
						0x30, 0x46, 0x02, 0x21, 0x00, 0xc3, 0x52, 0xd3,
						0xdd, 0x99, 0x3a, 0x98, 0x1b, 0xeb, 0xa4, 0xa6,
						0x3a, 0xd1, 0x5c, 0x20, 0x92, 0x75, 0xca, 0x94,
						0x70, 0xab, 0xfc, 0xd5, 0x7d, 0xa9, 0x3b, 0x58,
						0xe4, 0xeb, 0x5d, 0xce, 0x82, 0x02, 0x21, 0x00,
						0x84, 0x07, 0x92, 0xbc, 0x1f, 0x45, 0x60, 0x62,
						0x81, 0x9f, 0x15, 0xd3, 0x3e, 0xe7, 0x05, 0x5c,
						0xf7, 0xb5, 0xee, 0x1a, 0xf1, 0xeb, 0xcc, 0x60,
						0x28, 0xd9, 0xcd, 0xb1, 0xc3, 0xaf, 0x77, 0x48,
						0x01, // 73-byte signature
						0x41, // OP_DATA_65
						0x04, 0xf4, 0x6d, 0xb5, 0xe9, 0xd6, 0x1a, 0x9d,
						0xc2, 0x7b, 0x8d, 0x64, 0xad, 0x23, 0xe7, 0x38,
						0x3a, 0x4e, 0x6c, 0xa1, 0x64, 0x59, 0x3c, 0x25,
						0x27, 0xc0, 0x38, 0xc0, 0x85, 0x7e, 0xb6, 0x7e,
						0xe8, 0xe8, 0x25, 0xdc, 0xa6, 0x50, 0x46, 0xb8,
						0x2c, 0x93, 0x31, 0x58, 0x6c, 0x82, 0xe0, 0xfd,
						0x1f, 0x63, 0x3f, 0x25, 0xf8, 0x7c, 0x16, 0x1b,
						0xc6, 0xf8, 0xa6, 0x30, 0x12, 0x1d, 0xf2, 0xb3,
						0xd3, // 65-byte pubkey
					},
					Sequence: 0xffffffff,
				},
			},
			TxOut: []*btcwire.TxOut{
				&btcwire.TxOut{
					Value: 0x2123e300, // 556000000
					PkScript: []byte{
						0x76, // OP_DUP
						0xa9, // OP_HASH160
						0x14, // OP_DATA_20
						0xc3, 0x98, 0xef, 0xa9, 0xc3, 0x92, 0xba, 0x60,
						0x13, 0xc5, 0xe0, 0x4e, 0xe7, 0x29, 0x75, 0x5e,
						0xf7, 0xf5, 0x8b, 0x32,
						0x88, // OP_EQUALVERIFY
						0xac, // OP_CHECKSIG
					},
				},
				&btcwire.TxOut{
					Value: 0x108e20f00, // 4444000000
					PkScript: []byte{
						0x76, // OP_DUP
						0xa9, // OP_HASH160
						0x14, // OP_DATA_20
						0x94, 0x8c, 0x76, 0x5a, 0x69, 0x14, 0xd4, 0x3f,
						0x2a, 0x7a, 0xc1, 0x77, 0xda, 0x2c, 0x2f, 0x6b,
						0x52, 0xde, 0x3d, 0x7c,
						0x88, // OP_EQUALVERIFY
						0xac, // OP_CHECKSIG
					},
				},
			},
			LockTime: 0,
		},
		&btcwire.MsgTx{
			Version: 1,
			TxIn: []*btcwire.TxIn{
				&btcwire.TxIn{
					PreviousOutpoint: btcwire.OutPoint{
						Hash: btcwire.ShaHash([32]byte{ // Make go vet happy.
							0xc3, 0x3e, 0xbf, 0xf2, 0xa7, 0x09, 0xf1, 0x3d,
							0x9f, 0x9a, 0x75, 0x69, 0xab, 0x16, 0xa3, 0x27,
							0x86, 0xaf, 0x7d, 0x7e, 0x2d, 0xe0, 0x92, 0x65,
							0xe4, 0x1c, 0x61, 0xd0, 0x78, 0x29, 0x4e, 0xcf,
						}), // cf4e2978d0611ce46592e02d7e7daf8627a316ab69759a9f3df109a7f2bf3ec3
						Index: 1,
					},
					SignatureScript: []byte{
						0x47, // OP_DATA_71
						0x30, 0x44, 0x02, 0x20, 0x03, 0x2d, 0x30, 0xdf,
						0x5e, 0xe6, 0xf5, 0x7f, 0xa4, 0x6c, 0xdd, 0xb5,
						0xeb, 0x8d, 0x0d, 0x9f, 0xe8, 0xde, 0x6b, 0x34,
						0x2d, 0x27, 0x94, 0x2a, 0xe9, 0x0a, 0x32, 0x31,
						0xe0, 0xba, 0x33, 0x3e, 0x02, 0x20, 0x3d, 0xee,
						0xe8, 0x06, 0x0f, 0xdc, 0x70, 0x23, 0x0a, 0x7f,
						0x5b, 0x4a, 0xd7, 0xd7, 0xbc, 0x3e, 0x62, 0x8c,
						0xbe, 0x21, 0x9a, 0x88, 0x6b, 0x84, 0x26, 0x9e,
						0xae, 0xb8, 0x1e, 0x26, 0xb4, 0xfe, 0x01,
						0x41, // OP_DATA_65
						0x04, 0xae, 0x31, 0xc3, 0x1b, 0xf9, 0x12, 0x78,
						0xd9, 0x9b, 0x83, 0x77, 0xa3, 0x5b, 0xbc, 0xe5,
						0xb2, 0x7d, 0x9f, 0xff, 0x15, 0x45, 0x68, 0x39,
						0xe9, 0x19, 0x45, 0x3f, 0xc7, 0xb3, 0xf7, 0x21,
						0xf0, 0xba, 0x40, 0x3f, 0xf9, 0x6c, 0x9d, 0xee,
						0xb6, 0x80, 0xe5, 0xfd, 0x34, 0x1c, 0x0f, 0xc3,
						0xa7, 0xb9, 0x0d, 0xa4, 0x63, 0x1e, 0xe3, 0x95,
						0x60, 0x63, 0x9d, 0xb4, 0x62, 0xe9, 0xcb, 0x85,
						0x0f, // 65-byte pubkey
					},
					Sequence: 0xffffffff,
				},
			},
			TxOut: []*btcwire.TxOut{
				&btcwire.TxOut{
					Value: 0xf4240, // 1000000
					PkScript: []byte{
						0x76, // OP_DUP
						0xa9, // OP_HASH160
						0x14, // OP_DATA_20
						0xb0, 0xdc, 0xbf, 0x97, 0xea, 0xbf, 0x44, 0x04,
						0xe3, 0x1d, 0x95, 0x24, 0x77, 0xce, 0x82, 0x2d,
						0xad, 0xbe, 0x7e, 0x10,
						0x88, // OP_EQUALVERIFY
						0xac, // OP_CHECKSIG
					},
				},
				&btcwire.TxOut{
					Value: 0x11d260c0, // 299000000
					PkScript: []byte{
						0x76, // OP_DUP
						0xa9, // OP_HASH160
						0x14, // OP_DATA_20
						0x6b, 0x12, 0x81, 0xee, 0xc2, 0x5a, 0xb4, 0xe1,
						0xe0, 0x79, 0x3f, 0xf4, 0xe0, 0x8a, 0xb1, 0xab,
						0xb3, 0x40, 0x9c, 0xd9,
						0x88, // OP_EQUALVERIFY
						0xac, // OP_CHECKSIG
					},
				},
			},
			LockTime: 0,
		},
		&btcwire.MsgTx{
			Version: 1,
			TxIn: []*btcwire.TxIn{
				&btcwire.TxIn{
					PreviousOutpoint: btcwire.OutPoint{
						Hash: btcwire.ShaHash([32]byte{ // Make go vet happy.
							0x0b, 0x60, 0x72, 0xb3, 0x86, 0xd4, 0xa7, 0x73,
							0x23, 0x52, 0x37, 0xf6, 0x4c, 0x11, 0x26, 0xac,
							0x3b, 0x24, 0x0c, 0x84, 0xb9, 0x17, 0xa3, 0x90,
							0x9b, 0xa1, 0xc4, 0x3d, 0xed, 0x5f, 0x51, 0xf4,
						}), // f4515fed3dc4a19b90a317b9840c243bac26114cf637522373a7d486b372600b
						Index: 0,
					},
					SignatureScript: []byte{
						0x49, // OP_DATA_73
						0x30, 0x46, 0x02, 0x21, 0x00, 0xbb, 0x1a, 0xd2,
						0x6d, 0xf9, 0x30, 0xa5, 0x1c, 0xce, 0x11, 0x0c,
						0xf4, 0x4f, 0x7a, 0x48, 0xc3, 0xc5, 0x61, 0xfd,
						0x97, 0x75, 0x00, 0xb1, 0xae, 0x5d, 0x6b, 0x6f,
						0xd1, 0x3d, 0x0b, 0x3f, 0x4a, 0x02, 0x21, 0x00,
						0xc5, 0xb4, 0x29, 0x51, 0xac, 0xed, 0xff, 0x14,
						0xab, 0xba, 0x27, 0x36, 0xfd, 0x57, 0x4b, 0xdb,
						0x46, 0x5f, 0x3e, 0x6f, 0x8d, 0xa1, 0x2e, 0x2c,
						0x53, 0x03, 0x95, 0x4a, 0xca, 0x7f, 0x78, 0xf3,
						0x01, // 73-byte signature
						0x41, // OP_DATA_65
						0x04, 0xa7, 0x13, 0x5b, 0xfe, 0x82, 0x4c, 0x97,
						0xec, 0xc0, 0x1e, 0xc7, 0xd7, 0xe3, 0x36, 0x18,
						0x5c, 0x81, 0xe2, 0xaa, 0x2c, 0x41, 0xab, 0x17,
						0x54, 0x07, 0xc0, 0x94, 0x84, 0xce, 0x96, 0x94,
						0xb4, 0x49, 0x53, 0xfc, 0xb7, 0x51, 0x20, 0x65,
						0x64, 0xa9, 0xc2, 0x4d, 0xd0, 0x94, 0xd4, 0x2f,
						0xdb, 0xfd, 0xd5, 0xaa, 0xd3, 0xe0, 0x63, 0xce,
						0x6a, 0xf4, 0xcf, 0xaa, 0xea, 0x4e, 0xa1, 0x4f,
						0xbb, // 65-byte pubkey
					},
					Sequence: 0xffffffff,
				},
			},
			TxOut: []*btcwire.TxOut{
				&btcwire.TxOut{
					Value: 0xf4240, // 1000000
					PkScript: []byte{
						0x76, // OP_DUP
						0xa9, // OP_HASH160
						0x14, // OP_DATA_20
						0x39, 0xaa, 0x3d, 0x56, 0x9e, 0x06, 0xa1, 0xd7,
						0x92, 0x6d, 0xc4, 0xbe, 0x11, 0x93, 0xc9, 0x9b,
						0xf2, 0xeb, 0x9e, 0xe0,
						0x88, // OP_EQUALVERIFY
						0xac, // OP_CHECKSIG
					},
				},
			},
			LockTime: 0,
		},
	},
}