bitcoinjs-lib/ts_test/integration/payments.ts

import { Payment } from '../..';
import * as bitcoin from '../..';
import { network as NETWORK } from './_regtest';
import * as regtestUtils from './_regtest';

const { describe, it } = require('mocha');
const keyPairs = [
  bitcoin.ECPair.makeRandom({ network: NETWORK }),
  bitcoin.ECPair.makeRandom({ network: NETWORK }),
];

async function buildAndSign(
  depends,
  prevOutput,
  redeemScript,
  witnessScript,
  // @ts-ignore
): Promise<null> {
  const unspent = await regtestUtils.faucetComplex(prevOutput, 5e4);

  const txb = new bitcoin.TransactionBuilder(NETWORK);
  txb.addInput(unspent.txId, unspent.vout, null, prevOutput);
  txb.addOutput(regtestUtils.RANDOM_ADDRESS, 2e4);

  if (depends.signatures) {
    keyPairs.forEach(keyPair => {
      txb.sign(0, keyPair, redeemScript, null, unspent.value, witnessScript);
    });
  } else if (depends.signature) {
    txb.sign(0, keyPairs[0], redeemScript, null, unspent.value, witnessScript);
  }

  return regtestUtils.broadcast(txb.build().toHex());
}

['p2ms', 'p2pk', 'p2pkh', 'p2wpkh'].forEach(k => {
  const fixtures = require('../../ts_test/fixtures/' + k);
  const { depends } = fixtures.dynamic;
  const fn = bitcoin.payments[k];

  const base: Payment = {};
  if (depends.pubkey) base.pubkey = keyPairs[0].publicKey;
  if (depends.pubkeys) base.pubkeys = keyPairs.map(x => x.publicKey);
  if (depends.m) base.m = base.pubkeys.length;

  const { output } = fn(base);
  if (!output) throw new TypeError('Missing output');

  describe('bitcoinjs-lib (payments - ' + k + ')', () => {
    // @ts-ignore
    it('can broadcast as an output, and be spent as an input', async () => {
      await buildAndSign(depends, output, null, null);
    });

    it(
      'can (as P2SH(' +
        k +
        ')) broadcast as an output, and be spent as an input',
      // @ts-ignore
      async () => {
        const p2sh = bitcoin.payments.p2sh({
          redeem: { output },
          network: NETWORK,
        });
        await buildAndSign(depends, p2sh.output, p2sh.redeem.output, null);
      },
    );

    // NOTE: P2WPKH cannot be wrapped in P2WSH, consensus fail
    if (k === 'p2wpkh') return;

    it(
      'can (as P2WSH(' +
        k +
        ')) broadcast as an output, and be spent as an input',
      // @ts-ignore
      async () => {
        const p2wsh = bitcoin.payments.p2wsh({
          redeem: { output },
          network: NETWORK,
        });
        await buildAndSign(depends, p2wsh.output, null, p2wsh.redeem.output);
      },
    );

    it(
      'can (as P2SH(P2WSH(' +
        k +
        '))) broadcast as an output, and be spent as an input',
      // @ts-ignore
      async () => {
        const p2wsh = bitcoin.payments.p2wsh({
          redeem: { output },
          network: NETWORK,
        });
        const p2sh = bitcoin.payments.p2sh({
          redeem: { output: p2wsh.output },
          network: NETWORK,
        });

        await buildAndSign(
          depends,
          p2sh.output,
          p2sh.redeem.output,
          p2wsh.redeem.output,
        );
      },
    );
  });
});

// @ts-ignore
export {};