tests/integration: simplify the bare witness examples

test/integration/_regtest.js

@@ -4,6 +4,7 @@ const dhttp = require('dhttp/200')
 
 const APIPASS = process.env.APIPASS || 'satoshi'
 const APIURL = 'https://api.dcousens.cloud/1'
+const NETWORK = bitcoin.networks.testnet
 
 function broadcast (txHex, callback) {
   dhttp({
@@ -42,6 +43,31 @@ function faucet (address, value, callback) {
   })
 }
 
+function faucetComplex (output, value, callback) {
+  const keyPair = bitcoin.ECPair.makeRandom({ network: NETWORK })
+  const p2pkh = bitcoin.payments.p2pkh({ pubkey: keyPair.publicKey, network: NETWORK })
+
+  faucet(p2pkh.address, value * 2, (err, unspent) => {
+    if (err) return callback(err)
+
+    const txvb = new bitcoin.TransactionBuilder(NETWORK)
+    txvb.addInput(unspent.txId, unspent.vout, null, p2pkh.output)
+    txvb.addOutput(output, value)
+    txvb.sign(0, keyPair)
+    const txv = txvb.build()
+
+    broadcast(txv.toHex(), function (err) {
+      if (err) return callback(err)
+
+      return callback(null, {
+        txId: txv.getId(),
+        vout: 0,
+        value
+      })
+    })
+  })
+}
+
 function fetch (txId, callback) {
   dhttp({
     method: 'GET',
@@ -78,14 +104,15 @@ function randomAddress () {
 }
 
 module.exports = {
-  broadcast: broadcast,
-  faucet: faucet,
-  fetch: fetch,
-  height: height,
-  mine: mine,
-  network: bitcoin.networks.testnet,
-  unspents: unspents,
-  verify: verify,
-  randomAddress: randomAddress,
+  broadcast,
+  faucet,
+  faucetComplex,
+  fetch,
+  height,
+  mine,
+  network: NETWORK,
+  unspents,
+  verify,
+  randomAddress,
   RANDOM_ADDRESS: randomAddress()
 }