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block-test.js
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/* eslint-env mocha */
/* eslint prefer-arrow-callback: "off" */
'use strict';
const assert = require('./util/assert');
const common = require('./util/common');
const {BloomFilter} = require('bfilter');
const {BufferMap} = require('buffer-map');
const Block = require('../lib/primitives/block');
const MerkleBlock = require('../lib/primitives/merkleblock');
const consensus = require('../lib/protocol/consensus');
const Script = require('../lib/script/script');
const bip152 = require('../lib/net/bip152');
const CompactBlock = bip152.CompactBlock;
const TXRequest = bip152.TXRequest;
const TXResponse = bip152.TXResponse;
// Block test vectors
const block300025 = common.readBlock('block300025');
// Merkle block test vectors
const merkle300025 = common.readMerkle('merkle300025');
// Compact block test vectors
const block426884 = common.readBlock('block426884');
const compact426884 = common.readCompact('compact426884');
const block898352 = common.readBlock('block898352');
const compact898352 = common.readCompact('compact898352');
// Sigops counting test vectors
// Format: [name, sigops]
const sigopsVectors = [
['block928828', 5809]
];
describe('Block', function() {
this.timeout(10000);
it('should parse partial merkle tree', () => {
const [block] = merkle300025.getBlock();
assert(block.verifyPOW());
assert(block.verifyBody());
assert(block.verify());
const tree = block.getTree();
assert.strictEqual(tree.matches.length, 2);
assert.strictEqual(block.hash().toString('hex'),
'8cc72c02a958de5a8b35a23bb7e3bced8bf840cc0a4e1c820000000000000000');
assert.strictEqual(block.rhash(),
'0000000000000000821c4e0acc40f88bedbce3b73ba2358b5ade58a9022cc78c');
assert.strictEqual(
tree.matches[0].toString('hex'),
'7393f84cd04ca8931975c66282ebf1847c78d8de6c2578d4f9bae23bc6f30857');
assert.strictEqual(
tree.matches[1].toString('hex'),
'ec8c51de3170301430ec56f6703533d9ea5b05c6fa7068954bcb90eed8c2ee5c');
});
it('should decode/encode merkle block', () => {
const [block] = merkle300025.getBlock();
block.refresh();
assert.bufferEqual(block.toRaw(), merkle300025.getRaw());
});
it('should verify merkle block', () => {
const [block] = merkle300025.getBlock();
assert(block.verify());
});
it('should be encoded/decoded and still verify', () => {
const [block1] = merkle300025.getBlock();
const raw = block1.toRaw();
const block2 = MerkleBlock.fromRaw(raw);
assert.bufferEqual(block2.toRaw(), raw);
assert(block2.verify());
});
it('should be jsonified/unjsonified and still verify', () => {
const [block1] = merkle300025.getBlock();
const json = block1.toJSON();
const block2 = MerkleBlock.fromJSON(json);
assert.deepStrictEqual(block2.toJSON(), json);
assert(block2.verify());
});
it('should parse JSON', () => {
const [block1] = block300025.getBlock();
const block2 = Block.fromJSON(block1.toJSON());
assert.strictEqual(block2.hash().toString('hex'),
'8cc72c02a958de5a8b35a23bb7e3bced8bf840cc0a4e1c820000000000000000');
assert.strictEqual(block2.rhash(),
'0000000000000000821c4e0acc40f88bedbce3b73ba2358b5ade58a9022cc78c');
assert.bufferEqual(block2.merkleRoot, block2.createMerkleRoot());
});
it('should create a merkle block', () => {
const filter = BloomFilter.fromRate(1000, 0.01, BloomFilter.flags.NONE);
const item1 = Buffer.from(
'8e7445bbb8abd4b3174d80fa4c409fea6b94d96b',
'hex');
const item2 = Buffer.from('047b00000078da0dca3b0ec2300c00d0ab4466ed10'
+ 'e763272c6c9ca052972c69e3884a9022084215e2eef'
+ '0e6f781656b5d5a87231cd4349e534b6dea55ad4ff55e', 'hex');
filter.add(item1);
filter.add(item2);
const [block1] = block300025.getBlock();
const block2 = MerkleBlock.fromBlock(block1, filter);
assert(block2.verifyBody());
assert.bufferEqual(block2.toRaw(), merkle300025.getRaw());
});
it('should verify a historical block', () => {
const [block, view] = block300025.getBlock();
const flags = Script.flags.VERIFY_P2SH | Script.flags.VERIFY_DERSIG;
const height = 300025;
assert(block.verify());
assert(block.txs[0].isCoinbase());
assert(block.txs[0].isSane());
assert.strictEqual(block.getSize(), 284231);
let sigops = 0;
let reward = 0;
for (let i = 1; i < block.txs.length; i++) {
const tx = block.txs[i];
assert(tx.isSane());
assert(tx.verifyInputs(view, height));
assert(tx.verify(view, flags));
sigops += tx.getSigopsCount(view, flags);
reward += tx.getFee(view);
view.addTX(tx, height);
}
reward += consensus.getReward(height, 210000);
assert.strictEqual(sigops, 1320);
assert.strictEqual(reward, 2507773345);
assert.strictEqual(reward, block.txs[0].outputs[0].value);
});
it('should fail with a bad merkle root', () => {
const [block] = block300025.getBlock();
const merkleRoot = block.merkleRoot;
block.merkleRoot = consensus.ZERO_HASH;
block.refresh();
assert(!block.verifyPOW());
const [, reason] = block.checkBody();
assert.strictEqual(reason, 'bad-txnmrklroot');
assert(!block.verify());
block.merkleRoot = merkleRoot;
block.refresh();
assert(block.verify());
});
it('should fail on merkle block with a bad merkle root', () => {
const [block] = merkle300025.getBlock();
const merkleRoot = block.merkleRoot;
block.merkleRoot = consensus.ZERO_HASH;
block.refresh();
assert(!block.verifyPOW());
const [, reason] = block.checkBody();
assert.strictEqual(reason, 'bad-txnmrklroot');
assert(!block.verify());
block.merkleRoot = merkleRoot;
block.refresh();
assert(block.verify());
});
it('should fail with a low target', () => {
const [block] = block300025.getBlock();
const bits = block.bits;
block.bits = 403014710;
block.refresh();
assert(!block.verifyPOW());
assert(block.verifyBody());
assert(!block.verify());
block.bits = bits;
block.refresh();
assert(block.verify());
});
it('should fail on duplicate txs', () => {
const [block] = block300025.getBlock();
block.txs.push(block.txs[block.txs.length - 1]);
block.refresh();
const [, reason] = block.checkBody();
assert.strictEqual(reason, 'bad-txns-duplicate');
});
it('should verify with headers', () => {
const headers = block300025.getHeaders();
assert(headers.verifyPOW());
assert(headers.verifyBody());
assert(headers.verify());
});
it('should handle compact block', () => {
const [block] = block426884.getBlock();
const [cblock1] = compact426884.getBlock();
const cblock2 = CompactBlock.fromBlock(block, cblock1.keyNonce);
assert(cblock1.init());
assert.bufferEqual(cblock1.toRaw(), compact426884.getRaw());
assert.bufferEqual(cblock2.toRaw(), compact426884.getRaw());
const map = new BufferMap();
for (let i = 1; i < block.txs.length; i++) {
const tx = block.txs[i];
map.set(tx.hash(), { tx });
}
const full = cblock1.fillMempool({ map });
assert(full);
for (const tx of cblock1.available)
assert(tx);
assert.bufferEqual(cblock1.toBlock().toRaw(), block.toRaw());
});
it('should handle half-full compact block', () => {
const [block] = block426884.getBlock();
const [cblock1] = compact426884.getBlock();
const cblock2 = CompactBlock.fromBlock(block, cblock1.keyNonce);
assert(cblock1.init());
assert.bufferEqual(cblock1.toRaw(), compact426884.getRaw());
assert.bufferEqual(cblock2.toRaw(), compact426884.getRaw());
const map = new BufferMap();
for (let i = 1; i < ((block.txs.length + 1) >>> 1); i++) {
const tx = block.txs[i];
map.set(tx.hash(), { tx });
}
const full = cblock1.fillMempool({ map });
assert(!full);
const rawReq = cblock1.toRequest().toRaw();
const req = TXRequest.fromRaw(rawReq);
assert.bufferEqual(req.hash, cblock1.hash());
const rawRes = TXResponse.fromBlock(block, req).toRaw();
const res = TXResponse.fromRaw(rawRes);
const filled = cblock1.fillMissing(res);
assert(filled);
for (const tx of cblock1.available)
assert(tx);
assert.bufferEqual(cblock1.toBlock().toRaw(), block.toRaw());
});
it('should handle compact block', () => {
const [block] = block898352.getBlock();
const [cblock1] = compact898352.getBlock();
const cblock2 = CompactBlock.fromBlock(block, cblock1.keyNonce);
assert(cblock1.init());
assert.bufferEqual(cblock1.toRaw(), compact898352.getRaw());
assert.bufferEqual(cblock2.toRaw(), compact898352.getRaw());
assert.strictEqual(cblock1.sid(block.txs[1].hash()), 125673511480291);
const map = new BufferMap();
for (let i = 1; i < block.txs.length; i++) {
const tx = block.txs[i];
map.set(tx.hash(), { tx });
}
const full = cblock1.fillMempool({ map });
assert(full);
for (const tx of cblock1.available)
assert(tx);
assert.bufferEqual(cblock1.toBlock().toRaw(), block.toRaw());
});
it('should handle half-full compact block', () => {
const [block] = block898352.getBlock();
const [cblock1] = compact898352.getBlock();
const cblock2 = CompactBlock.fromBlock(block, cblock1.keyNonce);
assert(cblock1.init());
assert.bufferEqual(cblock1.toRaw(), compact898352.getRaw());
assert.bufferEqual(cblock2.toRaw(), compact898352.getRaw());
assert.strictEqual(cblock1.sid(block.txs[1].hash()), 125673511480291);
const map = new BufferMap();
for (let i = 1; i < ((block.txs.length + 1) >>> 1); i++) {
const tx = block.txs[i];
map.set(tx.hash(), { tx });
}
const full = cblock1.fillMempool({ map });
assert(!full);
const rawReq = cblock1.toRequest().toRaw();
const req = TXRequest.fromRaw(rawReq);
assert.bufferEqual(req.hash, cblock1.hash());
assert.deepStrictEqual(req.indexes, [5, 6, 7, 8, 9]);
const rawRes = TXResponse.fromBlock(block, req).toRaw();
const res = TXResponse.fromRaw(rawRes);
const filled = cblock1.fillMissing(res);
assert(filled);
for (const tx of cblock1.available)
assert(tx);
assert.bufferEqual(cblock1.toBlock().toRaw(), block.toRaw());
});
it('should calculate consensus sigops limit', () => {
const maxUint = 0xffffffff;
const blockSigops = {
1: consensus.MAX_BLOCK_SIGOPS_PER_MB,
123456: consensus.MAX_BLOCK_SIGOPS_PER_MB,
1000000: consensus.MAX_BLOCK_SIGOPS_PER_MB,
1000001: 2 * consensus.MAX_BLOCK_SIGOPS_PER_MB,
1348592: 2 * consensus.MAX_BLOCK_SIGOPS_PER_MB,
2000000: 2 * consensus.MAX_BLOCK_SIGOPS_PER_MB,
2000001: 3 * consensus.MAX_BLOCK_SIGOPS_PER_MB,
2654321: 3 * consensus.MAX_BLOCK_SIGOPS_PER_MB,
[maxUint]: 4295 * consensus.MAX_BLOCK_SIGOPS_PER_MB
};
for (const [sigops, expected] of Object.entries(blockSigops))
assert.strictEqual(consensus.maxBlockSigops(sigops), expected);
});
for (const cache of [false, true]) {
const word = cache ? 'with' : 'without';
for (const [name, sigops] of sigopsVectors) {
const ctx = common.readBlock(name);
it(`should count sigops for ${name} (${word} cache)`, () => {
const [block, view] = ctx.getBlock();
const flags = Script.flags.VERIFY_P2SH;
if (!cache)
block.refresh(true);
let count = 0;
for (const tx of block.txs)
count += tx.getSigopsCount(view, flags);
assert.strictEqual(count, sigops);
});
}
}
});