From d5a2a68ea2a96c7fff9c8535ee4cc2a7def68998 Mon Sep 17 00:00:00 2001 From: Daniel Cousens Date: Sun, 10 Dec 2017 16:37:54 +1100 Subject: [PATCH] add integration tests for block height decoding --- test/integration/blocks.js | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 test/integration/blocks.js diff --git a/test/integration/blocks.js b/test/integration/blocks.js new file mode 100644 index 0000000..648a321 --- /dev/null +++ b/test/integration/blocks.js @@ -0,0 +1,21 @@ +/* global describe, it */ + +var assert = require('assert') +var bitcoin = require('../../') + +describe('bitcoinjs-lib (blocks)', function () { + it('can extract a height from a CoinBase transaction', function () { + // from 00000000000000000097669cdca131f24d40c4cc7d80eaa65967a2d09acf6ce6 + let txHex = '010000000001010000000000000000000000000000000000000000000000000000000000000000ffffffff50037f9a07174d696e656420627920416e74506f6f6c685b205a2b1f7bfabe6d6d36afe1910eca9405b66f97750940a656e38e2c0312958190ff8e98fd16761d220400000000000000aa340000d49f0000ffffffff02b07fc366000000001976a9148349212dc27ce3ab4c5b29b85c4dec643d764b1788ac0000000000000000266a24aa21a9ed72d9432948505e3d3062f1307a3f027a5dea846ff85e47159680919c12bf1e400120000000000000000000000000000000000000000000000000000000000000000000000000' + let tx = bitcoin.Transaction.fromHex(txHex) + + assert.strictEqual(tx.ins.length, 1) + let script = tx.ins[0].script +// bitcoin.script.decompile(script) // returns [] :( + + assert.strictEqual(script[0], 0x03) + let heightBuffer = script.slice(1, 4) + let height = bitcoin.script.number.decode(heightBuffer) + assert.strictEqual(height, 498303) + }) +})