integration tests: add brainwallet/README examples

test/integration/brainwallet.js

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+var assert = require('assert')
+
+var bigi = require('bigi')
+var bitcoin = require('../../')
+
+describe('bitcoinjs-lib (brainwallet examples)', function() {
+  it('can initialize a ECKey from a sha256 hash', function() {
+    var hash = bitcoin.crypto.sha256('correct horse battery staple')
+    var d = bigi.fromBuffer(hash)
+
+    var key = new bitcoin.ECKey(d)
+
+    assert.equal(key.pub.getAddress().toString(), '1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8')
+  })
+
+  it('can sign a bitcoin message', function() {
+    var key = bitcoin.ECKey.fromWIF('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss')
+    var message = 'This is an example of a signed message.'
+
+    var signature = bitcoin.Message.sign(key, message)
+    assert.equal(signature.toString('base64'), 'G9L5yLFjti0QTHhPyFrZCT1V/MMnBtXKmoiKDZ78NDBjERki6ZTQZdSMCtkgoNmp17By9ItJr8o7ChX0XxY91nk=')
+  })
+
+  it('can verify a bitcoin message', function() {
+    var address = '1HZwkjkeaoZfTSaJxDw6aKkxp45agDiEzN'
+    var signature = 'HJLQlDWLyb1Ef8bQKEISzFbDAKctIlaqOpGbrk3YVtRsjmC61lpE5ErkPRUFtDKtx98vHFGUWlFhsh3DiW6N0rE'
+    var message = 'This is an example of a signed message.'
+
+    assert(bitcoin.Message.verify(address, signature, message))
+  })
+})

test/integration/readme.js

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+var assert = require('assert')
+
+var bitcoin = require('../../')
+
+describe('bitcoinjs-lib (README)', function() {
+  it('can generate a Bitcoin address from a WIF private key', function() {
+    var key = bitcoin.ECKey.fromWIF('Kxr9tQED9H44gCmp6HAdmemAzU3n84H3dGkuWTKvE23JgHMW8gct')
+
+    assert.equal(key.pub.getAddress().toString(), '19AAjaTUbRjQCMuVczepkoPswiZRhjtg31')
+  })
+
+  it('can create a Transaction', function() {
+    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)
+
+    // Initialize a private key using WIF
+    var key = bitcoin.ECKey.fromWIF("L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy")
+
+    // Sign the first input with the new key
+    tx.sign(0, key)
+
+    assert.equal(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006b483045022100aefbcf847900b01dd3e3debe054d3b6d03d715d50aea8525f5ea3396f168a1fb022013d181d05b15b90111808b22ef4f9ebe701caf2ab48db269691fdf4e9048f4f60121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01983a0000000000001976a914ad618cf4333b3b248f9744e8e81db2964d0ae39788ac00000000')
+  })
+
+  it('can create a P2SH Multisig Address', function() {
+    var privKeys = [
+      'Kwv4iik3zSrMoR8RztogbMzV3i3CFRHjFPyQ8SME88g8c7fB4ouL',
+      'KyahXPPP45jSmWVSd9687wPhqEAtRZCNfP3ENyZyV7CJ5gWWWWW1',
+      'KzGaNk5adgZsjfsaWqwrCZhQn63BkQiKUWrCYBLTNspoDZ1d83F3'
+    ].map(bitcoin.ECKey.fromWIF)
+    var pubKeys = privKeys.map(function(x) { return x.pub })
+
+    var redeemScript = bitcoin.scripts.multisigOutput(2, pubKeys) // 2 of 3
+    var scriptPubKey = bitcoin.scripts.scriptHashOutput(redeemScript.getHash())
+    var p2shAddress = bitcoin.Address.fromOutputScript(scriptPubKey).toString()
+
+    assert.equal(p2shAddress, '36NUkt6FWUi3LAWBqWRdDmdTWbt91Yvfu7')
+  })
+})