22 lines
1.2 KiB
TypeScript
22 lines
1.2 KiB
TypeScript
'use strict'
|
|
|
|
const { describe, it } = require('mocha')
|
|
const assert = require('assert')
|
|
const bitcoin = require('../../')
|
|
|
|
describe('bitcoinjs-lib (blocks)', () => {
|
|
it('can extract a height from a CoinBase transaction', () => {
|
|
// from 00000000000000000097669cdca131f24d40c4cc7d80eaa65967a2d09acf6ce6
|
|
const txHex = '010000000001010000000000000000000000000000000000000000000000000000000000000000ffffffff50037f9a07174d696e656420627920416e74506f6f6c685b205a2b1f7bfabe6d6d36afe1910eca9405b66f97750940a656e38e2c0312958190ff8e98fd16761d220400000000000000aa340000d49f0000ffffffff02b07fc366000000001976a9148349212dc27ce3ab4c5b29b85c4dec643d764b1788ac0000000000000000266a24aa21a9ed72d9432948505e3d3062f1307a3f027a5dea846ff85e47159680919c12bf1e400120000000000000000000000000000000000000000000000000000000000000000000000000'
|
|
const tx = bitcoin.Transaction.fromHex(txHex)
|
|
|
|
assert.strictEqual(tx.ins.length, 1)
|
|
const script = tx.ins[0].script
|
|
// bitcoin.script.decompile(script) // returns [] :(
|
|
|
|
assert.strictEqual(script[0], 0x03)
|
|
const heightBuffer = script.slice(1, 4)
|
|
const height = bitcoin.script.number.decode(heightBuffer)
|
|
assert.strictEqual(height, 498303)
|
|
})
|
|
})
|