tests/integration: add bare witness output tests

README.md

@@ -99,6 +99,7 @@ Some examples interact (via HTTPS) with a 3rd Party Blockchain Provider (3PBP).
 - [Create (and broadcast via 3PBP) a Transaction with an OP\_RETURN output](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/transactions.js#L87)
 - [Create (and broadcast via 3PBP) a Transaction with a 2-of-4 P2SH(multisig) input](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/transactions.js#L109)
 - [Create (and broadcast via 3PBP) a Transaction with a SegWit P2SH(P2WPKH) input](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/transactions.js#L149)
+- [Create (and broadcast via 3PBP) a Transaction with a SegWit P2WPKH input](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/transactions.js#L174)
 - [Create (and broadcast via 3PBP) a Transaction with a SegWit 3-of-4 P2SH(P2WSH(multisig)) input](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/transactions.js#L184)
 - [Import a BIP32 testnet xpriv and export to WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/bip32.js#L17)
 - [Export a BIP32 xpriv, then import it](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/bip32.js#L24)

test/integration/transactions.js

@@ -171,6 +171,95 @@ describe('bitcoinjs-lib (transactions)', function () {
     })
   })
 
+  it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WPKH input (via a P2SH(P2WPKH) transaction)', function (done) {
+    this.timeout(30000)
+
+    const keyPair = bitcoin.ECPair.makeRandom({ network: regtest })
+    const p2wpkh = bitcoin.payments.p2wpkh({ pubkey: keyPair.publicKey, network: regtest })
+
+    // prepare a P2SH(P2WPKH) faucet transaction, as Bitcoin-core doesn't support bare P2WPKH outputs (...yet)
+    const p2sh = bitcoin.payments.p2sh({ redeem: p2wpkh, network: regtest })
+
+    regtestUtils.faucet(p2sh.address, 10e4, function (err, unspent) {
+      if (err) return done(err)
+
+      const txvb = new bitcoin.TransactionBuilder(regtest)
+      txvb.addInput(unspent.txId, unspent.vout)
+      txvb.addOutput(p2wpkh.address, 6e4) // funds a P2WPKH address
+      txvb.sign(0, keyPair, p2sh.redeem.output, null, unspent.value)
+      const txv = txvb.build()
+
+      // build and broadcast (the via transaction) to the Bitcoin RegTest network
+      regtestUtils.broadcast(txv.toHex(), function (err) {
+        if (err) return done(err)
+
+        // XXX: build the Transaction w/ a P2WPKH input
+        const txb = new bitcoin.TransactionBuilder(regtest)
+        txb.addInput(txv.getId(), 0, null, p2wpkh.output) // NOTE: provide the prevOutScript!
+        txb.addOutput(regtestUtils.RANDOM_ADDRESS, 2e4)
+        txb.sign(0, keyPair, null, null, 6e4) // NOTE: no redeem script
+        const tx = txb.build()
+
+        // build and broadcast (the P2WPKH transaction) to the Bitcoin RegTest network
+        regtestUtils.broadcast(tx.toHex(), function (err) {
+          if (err) return done(err)
+
+          regtestUtils.verify({
+            txId: tx.getId(),
+            address: regtestUtils.RANDOM_ADDRESS,
+            vout: 0,
+            value: 2e4
+          }, done)
+        })
+      })
+    })
+  })
+
+  it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WSH(P2PK) input (via a P2SH(P2PK) transaction)', function (done) {
+    this.timeout(30000)
+
+    const keyPair = bitcoin.ECPair.makeRandom({ network: regtest })
+    const p2pk = bitcoin.payments.p2pk({ pubkey: keyPair.publicKey, network: regtest })
+    const p2wsh = bitcoin.payments.p2wsh({ redeem: p2pk, network: regtest })
+
+    // prepare a P2SH(P2PK) faucet transaction, as Bitcoin-core doesn't support bare P2WSH outputs (...yet)
+    const p2sh = bitcoin.payments.p2sh({ redeem: p2pk, network: regtest })
+
+    regtestUtils.faucet(p2sh.address, 10e4, function (err, unspent) {
+      if (err) return done(err)
+
+      const txvb = new bitcoin.TransactionBuilder(regtest)
+      txvb.addInput(unspent.txId, unspent.vout)
+      txvb.addOutput(p2wsh.address, 6e4) // funds a P2WPKH address
+      txvb.sign(0, keyPair, p2sh.redeem.output)
+      const txv = txvb.build()
+
+      // build and broadcast (the via transaction) to the Bitcoin RegTest network
+      regtestUtils.broadcast(txv.toHex(), function (err) {
+        if (err) return done(err)
+
+        // XXX: build the Transaction w/ a P2WSH input
+        const txb = new bitcoin.TransactionBuilder(regtest)
+        txb.addInput(txv.getId(), 0, null, p2wsh.output) // NOTE: provide the prevOutScript!
+        txb.addOutput(regtestUtils.RANDOM_ADDRESS, 2e4)
+        txb.sign(0, keyPair, null, null, 6e4, p2wsh.redeem.output) // NOTE: provide a witnessScript!
+        const tx = txb.build()
+
+        // build and broadcast (the P2WSH transaction) to the Bitcoin RegTest network
+        regtestUtils.broadcast(tx.toHex(), function (err) {
+          if (err) return done(err)
+
+          regtestUtils.verify({
+            txId: tx.getId(),
+            address: regtestUtils.RANDOM_ADDRESS,
+            vout: 0,
+            value: 2e4
+          }, done)
+        })
+      })
+    })
+  })
+
   it('can create (and broadcast via 3PBP) a Transaction, w/ a P2SH(P2WSH(P2MS(3 of 4))) (SegWit multisig) input', function (done) {
     this.timeout(50000)