68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
/* eslint-env mocha */
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/* eslint prefer-arrow-callback: "off" */
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'use strict';
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const assert = require('./util/assert');
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const consensus = require('../lib/protocol/consensus');
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const BN = require('../lib/crypto/bn');
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describe('Consensus', function() {
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it('should calculate reward properly', () => {
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let height = 0;
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let total = 0;
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for (;;) {
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const reward = consensus.getReward(height, 210000);
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assert(reward <= consensus.COIN * 50);
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total += reward;
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if (reward === 0)
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break;
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height++;
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}
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assert.strictEqual(height, 6930000);
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assert.strictEqual(total, 2099999997690000);
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});
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it('should verify proof-of-work', () => {
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const bits = 0x1900896c;
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const hash = Buffer.from(
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'672b3f1bb11a994267ea4171069ba0aa4448a840f38e8f340000000000000000',
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'hex'
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);
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assert(consensus.verifyPOW(hash, bits));
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});
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it('should convert bits to target', () => {
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const bits = 0x1900896c;
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const target = consensus.fromCompact(bits);
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const expected = new BN(
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'0000000000000000896c00000000000000000000000000000000000000000000',
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'hex');
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assert.strictEqual(target.toString('hex'), expected.toString('hex'));
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});
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it('should convert target to bits', () => {
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const target = new BN(
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'0000000000000000896c00000000000000000000000000000000000000000000',
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'hex');
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const bits = consensus.toCompact(target);
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const expected = 0x1900896c;
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assert.strictEqual(bits, expected);
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});
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it('should check version bit', () => {
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assert(consensus.hasBit(0x20000001, 0));
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assert(!consensus.hasBit(0x20000000, 0));
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assert(!consensus.hasBit(0x10000001, 0));
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assert(consensus.hasBit(0x20000003, 1));
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assert(consensus.hasBit(0x20000003, 0));
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});
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});
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