Differential D16673 Diff 49323 modules/ecash-lib/tests/txBuilder.test.ts

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modules/ecash-lib/tests/txBuilder.test.ts

// Copyright (c) 2024 The Bitcoin developers		// Copyright (c) 2024 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying		// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.		// file COPYING or http://www.opensource.org/licenses/mit-license.php.

import { expect } from 'chai';		import { expect } from 'chai';

import { ChronikClient } from 'chronik-client';		import { ChronikClient } from 'chronik-client';

import { Ecc } from '../src/ecc.js';		import { Ecc, EccDummy } from '../src/ecc.js';
import { sha256d, shaRmd160 } from '../src/hash.js';		import { sha256d, shaRmd160 } from '../src/hash.js';
import { initWasm } from '../src/initNodeJs.js';		import { initWasm } from '../src/initNodeJs.js';
import { fromHex, toHex } from '../src/io/hex.js';		import { fromHex, toHex } from '../src/io/hex.js';
import { pushBytesOp } from '../src/op.js';		import { pushBytesOp } from '../src/op.js';
import {		import {
OP_CHECKSIG,		OP_CHECKSIG,
OP_CHECKSIGVERIFY,		OP_CHECKSIGVERIFY,
OP_CODESEPARATOR,		OP_CODESEPARATOR,
▲ Show 20 Lines • Show All 615 Lines • ▼ Show 20 Lines	it('TxBuilder leftover with 0xFD outputs', async () => {
// Adding 1 extra sat -> fails -> showing that the previous tx was exact		// Adding 1 extra sat -> fails -> showing that the previous tx was exact
extraOutput.value += 1;		extraOutput.value += 1;
expect(() => txBuild.sign(ecc, 1000, 546)).to.throw(		expect(() => txBuild.sign(ecc, 1000, 546)).to.throw(
`Insufficient input value (180000): Can only pay for ` +		`Insufficient input value (180000): Can only pay for ` +
`${smallerSize - 1} fees, but ${smallerSize} required`,		`${smallerSize - 1} fees, but ${smallerSize} required`,
);		);
});		});

		it('TxBuilder signatory dependent on outputs', async () => {
		// Size of a tx with 1 input with empty scriptSig
		const expectedSize =
		4 + // nVersion
		1 + // num inputs
		36 + // prevOut
		1 + // script len
		4 + // nSequence
		1 + // num outputs
		4; // locktime
		const txBuild = new TxBuilder({
		inputs: [
		{
		input: {
		prevOut: {
		txid: toHex(new Uint8Array(32)),
		outIdx: 0,
		},
		signData: {
		value: expectedSize,
		},
		},
		signatory: (_, input) => {
		// returns OP_0 * number outputs
		// -> estimation will start this with 1 leftover output
		// and then with no outputs.
		return new Script(
		new Uint8Array(input.unsignedTx.tx.outputs.length),
		);
		},
		},
		],
		// Leftover script, but will be spliced out again
		outputs: [new Script()],
		});
		const tx = txBuild.sign(new EccDummy(), 1000, 9999);
		expect(tx.serSize()).to.equal(expectedSize);
		});

it('TxBuilder leftover failure', async () => {		it('TxBuilder leftover failure', async () => {
const txBuild = new TxBuilder({		const txBuild = new TxBuilder({
inputs: [		inputs: [
{		{
input: {		input: {
prevOut: {		prevOut: {
txid: new Uint8Array(32),		txid: new Uint8Array(32),
outIdx: 0,		outIdx: 0,
Show All 21 Lines