integration tests: add example OP_RETURN transaction

test/integration/readme.js

@@ -10,21 +10,28 @@ describe('bitcoinjs-lib (README)', function() {
   })
 
   it('can create a Transaction', function() {
+    var key = bitcoin.ECKey.fromWIF("L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy")
     var tx = new bitcoin.TransactionBuilder()
 
-    // Add the input (who is paying) of the form [previous transaction hash, index of the output to use]
     tx.addInput("aa94ab02c182214f090e99a0d57021caffd0f195a81c24602b1028b130b63e31", 0)
-
-    // Add the output (who to pay to) of the form [payee's address, amount in satoshis]
     tx.addOutput("1Gokm82v6DmtwKEB8AiVhm82hyFSsEvBDK", 15000)
+    tx.sign(0, key)
+
+    assert.equal(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006b483045022100aefbcf847900b01dd3e3debe054d3b6d03d715d50aea8525f5ea3396f168a1fb022013d181d05b15b90111808b22ef4f9ebe701caf2ab48db269691fdf4e9048f4f60121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01983a0000000000001976a914ad618cf4333b3b248f9744e8e81db2964d0ae39788ac00000000')
+  })
 
-    // Initialize a private key using WIF
+  it('can create an OP_RETURN transaction', function() {
     var key = bitcoin.ECKey.fromWIF("L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy")
+    var tx = new bitcoin.TransactionBuilder()
+
+    var data = new Buffer('cafedeadbeef', 'hex')
+    var dataScript = bitcoin.scripts.dataOutput(data)
 
-    // Sign the first input with the new key
+    tx.addInput("aa94ab02c182214f090e99a0d57021caffd0f195a81c24602b1028b130b63e31", 0)
+    tx.addOutput(dataScript, 1000)
     tx.sign(0, key)
 
-    assert.equal(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006b483045022100aefbcf847900b01dd3e3debe054d3b6d03d715d50aea8525f5ea3396f168a1fb022013d181d05b15b90111808b22ef4f9ebe701caf2ab48db269691fdf4e9048f4f60121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01983a0000000000001976a914ad618cf4333b3b248f9744e8e81db2964d0ae39788ac00000000')
+    assert.equal(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006a4730440220578f9df41a0e5c5052ad6eef46d005b41f966c7fda01d5f71e9c65026c9025c002202e0159ea0db47ca1bf7713e3a08bbba8cc4fdd90a2eff12591c42049c7cad6c30121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01e803000000000000086a06cafedeadbeef00000000')
   })
 
   it('can create a P2SH Multisig Address', function() {