text: 'use strict';
  
  var should = require('chai').should();
  var expect = require('chai').expect;
  var _ = require('lodash');
  
  var bitcore = require('../../..');
  var errors = bitcore.errors;
  var PrivateKey = bitcore.PrivateKey;
  var Address = bitcore.Address;
  var Script = bitcore.Script;
  var Networks = bitcore.Networks;
  var Input = bitcore.Transaction.Input;
  
  describe('Transaction.Input', function() {
  
    var privateKey = new PrivateKey('XBK4nzpDtLX1xZjoAFq7LJEAu2JgnJgqA7ZPK1eCLHd9AXSx1M6L');
    var publicKey = privateKey.publicKey;
    var address = new Address(publicKey, Networks.livenet);
    var output = {
      address: '33zbk2aSZYdNbRsMPPt6jgy6Kq1kQreqeb',
      prevTxId: '66e64ef8a3b384164b78453fa8c8194de9a473ba14f89485a0e433699daec140',
      outputIndex: 0,
      script: new Script(address),
      satoshis: 1000000
    };
    var coinbase = {
      prevTxId: '0000000000000000000000000000000000000000000000000000000000000000',
      outputIndex: 0xFFFFFFFF,
      script: new Script(),
      satoshis: 1000000
    };
  
    var coinbaseJSON = JSON.stringify({
      prevTxId: '0000000000000000000000000000000000000000000000000000000000000000',
      outputIndex: 4294967295,
      script:''
    });
  
    var otherJSON = JSON.stringify({
      txidbuf: 'a477af6b2667c29670467e4e0728b685ee07b240235771862318e29ddbe58458',
      txoutnum: 0,
      seqnum:4294967295,
      script: '71 0x3044022006553276ec5b885ddf5cc1d79e1e3dadbb404b60ad4cc00318e21565' +
        '4f13242102200757c17b36e3d0492fb9cf597032e5afbea67a59274e64af5a05d12e5ea2303901 ' +
        '33 0x0223078d2942df62c45621d209fab84ea9a7a23346201b7727b9b45a29c4e76f5e',
      output: {
        'satoshis':100000,
        'script':'OP_DUP OP_HASH160 20 0x88d9931ea73d60eaf7e5671efc0552b912911f2a ' +
          'OP_EQUALVERIFY OP_CHECKSIG'
      }
    });
  
    it('has abstract methods: "getSignatures", "isFullySigned", "addSignature", "clearSignatures"', function() {
      var input = new Input(output);
      _.each(['getSignatures', 'isFullySigned', 'addSignature', 'clearSignatures'], function(method) {
        expect(function() {
          return input[method]();
        }).to.throw(errors.AbstractMethodInvoked);
      });
    });
    it('detects coinbase transactions', function() {
      new Input(output).isNull().should.equal(false);
      var ci = new Input(coinbase);
      ci.isNull().should.equal(true);
    });
  
    describe('instantiation', function() {
      it('works without new', function() {
        var input = Input();
        should.exist(input);
      });
      it('fails with no script info', function() {
        expect(function() {
          var input = new Input({});
          input.toString();
        }).to.throw('Need a script to create an input');
      });
      it('fromObject should work', function() {
        var jsonData = JSON.parse(coinbaseJSON);
        var input = Input.fromObject(jsonData);
        should.exist(input);
        input.prevTxId.toString('hex').should.equal(jsonData.prevTxId);
        input.outputIndex.should.equal(jsonData.outputIndex);
      });
      it('fromObject should work', function() {
        var input = Input.fromObject(JSON.parse(coinbaseJSON));
        var obj = input.toObject();
        Input.fromObject(obj).should.deep.equal(input);
        obj.script = 42;
        Input.fromObject.bind(null, obj).should.throw('Invalid argument type: script');
      });
    });
  
    it('_estimateSize returns correct size', function() {
      var input = new Input(output);
      input._estimateSize().should.equal(66);
    });
  });
  