/*
 * Copyright 2018 Scytl Secure Electronic Voting SA
 *
 * All rights reserved
 *
 * See our extended copyright notice in *file 'Copyright.txt' which is part of this source code package
 */
describe('Digital envelope service...', function() {
  'use strict';
  var _publicKeysPem = [
    '-----BEGIN PUBLIC KEY-----MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAglypZU45bnf2opnRI+Y51VqouBpvDT33xIB/OtbwKzwVpi+JrjBFtfk33tE9t/dSRs79CK94HRhCWcOiLa2qWPrjeZ9SBiEyScrhIvRZVBF41zBgwQNuRvJCsKmAqlZaFNJDZxEP4repmlBn1CfVFmfrXmOKqwP5F7l9ZtucveRzsfmF1yVPFkW8TMuB3YqMiyymyqHlS8ujCsu5I8tpgPbwuxdMOY94fNhSXrYkY8IuX1g1zdq/Z1jluOaR/UqK4UpnbuJaH/F0VgDNiWh6cTD0DFGEk0b70i5wU4Q3L/S6XZQRvSuADoCbhwBKuFL5pW5n865oLVb5S3wuVdWaGwIDAQAB-----END PUBLIC KEY-----',
    '-----BEGIN PUBLIC KEY-----MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAngCJ2RYh3XOvghmAi2MT26/fx4Hx8gYkYS2zaf9c2H8Qns1hnIHO8pIlHze/stUmNzim6nlytbJLQHmVDu64Pf9dn1ClAW2caKqUo4ofjnOzDd6RocQByjTsvZ1nOcG5BMYtOWGua+QIVFrxvxZgL6T3ShQ+9J3/1LiQDUmWj0kMoct6vRJuNkJxVFegtIEqYZYTTFI1+Y25k040NFu0e9IDwDXQA63EqKL3DjrgxdjOY+KXu4zU6DUcL4VcKaTMs1+pDfU6bSOtrecuasKkEmNE9fuy9WejFqNGqlrNVCeYmOOnNXvI0vCdH1bw4/CpqddxvGZOStczF8vGJVcMVQIDAQAB-----END PUBLIC KEY-----'
  ];
  var _privateKeysPem = [
    '-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----',
    '-----BEGIN RSA PRIVATE KEY-----MIIEogIBAAKCAQEAngCJ2RYh3XOvghmAi2MT26/fx4Hx8gYkYS2zaf9c2H8Qns1hnIHO8pIlHze/stUmNzim6nlytbJLQHmVDu64Pf9dn1ClAW2caKqUo4ofjnOzDd6RocQByjTsvZ1nOcG5BMYtOWGua+QIVFrxvxZgL6T3ShQ+9J3/1LiQDUmWj0kMoct6vRJuNkJxVFegtIEqYZYTTFI1+Y25k040NFu0e9IDwDXQA63EqKL3DjrgxdjOY+KXu4zU6DUcL4VcKaTMs1+pDfU6bSOtrecuasKkEmNE9fuy9WejFqNGqlrNVCeYmOOnNXvI0vCdH1bw4/CpqddxvGZOStczF8vGJVcMVQIDAQABAoIBAB/MEfHLP3N2pZp0EWd7v/JVOZ7H6u3/CHE6JkItrvyuzaR3xq4dfY1ZlfjrWjveI3u3fffwCwK/598I2NORfSiU7L10GFDqQzDZK2KiGGmtpRokcYBxlr6f2gjq1WxNLTPlwhIrM1PpJzf6uW3wTdkoxM92tZi691JS9kKGTbN1+LWIITWk6sC3n4Atu8LI19/zSfrl16/1iYSF7n9ylz2tyqQAyBEQXgrMRrg3KkPU83P5CwdIdDFyb4pwZ75U8OXuOfhcv0ilGIH62t2d9eVaFw0RKSf4QOYAdcVPAA75m+RzTSM7jDX4OGiPsoa1iWS4fqcdPfchFQSnJhhrL2ECgYEA8VV9JMYKE4qRY/srxhKnsVXhAVX8WkOjBT+VQSEBtI9ay5wld1JYLjWnCfaScXUQhFTXrR1f4JDAQ1K2MYwJ8FF1whW6WR0FvUi6IZX9C+pNfN4YtbVOYg4P8PhLF4hnV8UyqFCYN4Apw3JadS0kKK370eIhz1g+307pwu47h00CgYEAp5qhAi0HdB/aleb/GHGBr//xDHwm87mKyi6BKhiNP5phM7gnoyItIoxT2ArUgYC9lrrt0hi4wZsCxixLciWjGw9rFBY0Z23ie59cRyY9TlV3WTNFLkIl7nBB5PJaJAu7scXx/R4Ozgc0brX4mXs1ZORzlDbRKNFYNnsGkRKhZSkCgYA55vT7mbhZL+nqPx0ljNxHI/+0PlkpnwjB/Ztl4PFzzOFP8MrcchlOHPlS3qIMLrYjyedlVaLnUlOO0417HcpUqnbCdkwbjWcPHx/pZv8rmK+2weLT1ghUZmNUwX3iy4tf96RL1epvhoR+rDUf4BDI4dWFaegKw3VyRpC3gEkwEQKBgCaCXtAzLG1ADGc45g/ltJiNxALMW97QGNWPjdnwPjQI8qCBhYn0Bk7T00fmZSFERUtms9H8ICdLyH1kHAmkIC/NgRriZzQEiW9CFF+8p4ViGcQDBbg1NqXsYReLn658i6mzA4DW8Svhd+igIviQ2JnP68Z4OeKZBx2tcrrOfwrRAoGAGyXTcOvhr+5ayXkQ36VAr2YcAUs2SeN0HwmYBP2ErCgd/KXri7RwWXqEQtvpvAOGJq/tXyc7P5BnBhlqQtUm9WX7kqTy/dIS+pJP0UMm02N9U+b02G0auPmBKM35LXO4YGhZep1Vig+MLycR8OSe0cd4gzk52u3Th9I3e0bV9Fw=-----END RSA PRIVATE KEY-----'
  ];
  var _data = 'Ox2fUJq1gAbX';
  var _digitalEnvelopeService;
  var _converters;
  var _dataBase64;

  // Initialize variables common to all digital envelope tests.
  beforeEach(function() {
    cryptolib('commons.utils', 'digitalenvelope.service', function(box) {
      _digitalEnvelopeService = box.digitalenvelope.service;

      _converters = new box.commons.utils.Converters();

      _dataBase64 = _converters.base64Encode(_data);
    });
  });

  describe('should be able to ..', function() {

    it('generate a digital envelope with a single public key and open the envelope with the corresponding private key',
       function() {
         var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
             _dataBase64, [_publicKeysPem[0]]);

         var retrievedDataBase64 = _digitalEnvelopeService.openDigitalEnvelope(
             digitalEnvelope, _privateKeysPem[0]);
         expect(retrievedDataBase64).toBe(_dataBase64);
       });

    it('and generate a digital envelope with multiple public keys and open the envelope with any corresponding private key',
       function() {
         var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
             _dataBase64, _publicKeysPem);

         var retrievedDataBase64;
         for (var i = 0; i < _privateKeysPem.length; i++) {
           retrievedDataBase64 = _digitalEnvelopeService.openDigitalEnvelope(
               digitalEnvelope, _privateKeysPem[i]);
           expect(retrievedDataBase64).toBe(_dataBase64);
         }
       });

    it('and serialize and deserialize a digital envelope generated with a single public key',
       function() {
         cryptolib('digitalenvelope', function(box) {
           var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
               _dataBase64, [_publicKeysPem[0]]);

           var serializedDigitalEnvelope = digitalEnvelope.stringify();
           var deserializedDigitalEnvelope =
               box.digitalenvelope.deserialize(serializedDigitalEnvelope);

           var retrievedDataBase64 =
               _digitalEnvelopeService.openDigitalEnvelope(
                   deserializedDigitalEnvelope, _privateKeysPem[0]);
           expect(retrievedDataBase64).toBe(_dataBase64);
         });
       });

    it('and serialize and deserialize a digital envelope generated with multiple public keys',
       function() {
         cryptolib('digitalenvelope', function(box) {
           var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
               _dataBase64, _publicKeysPem);

           var serializedDigitalEnvelope = digitalEnvelope.stringify();
           var deserializedDigitalEnvelope =
               box.digitalenvelope.deserialize(serializedDigitalEnvelope);

           var retrievedDataBase64;
           for (var i = 0; i < _privateKeysPem.length; i++) {
             retrievedDataBase64 = _digitalEnvelopeService.openDigitalEnvelope(
                 deserializedDigitalEnvelope, _privateKeysPem[i]);
             expect(retrievedDataBase64).toBe(_dataBase64);
           }
         });
       });

    it('and throw an exception when opening a digital envelope with the wrong private key',
       function() {
         var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
             _dataBase64, [_publicKeysPem[0]]);
         expect(function() {
           _digitalEnvelopeService.openDigitalEnvelope(
               digitalEnvelope, _privateKeysPem[1]);
         }).toThrow();
       });

    it('and throw an exception when opening a corrupted digital envelope',
       function() {
         cryptolib('digitalenvelope', function(box) {
           var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
               _dataBase64, [_publicKeysPem[0]]);
           var serializedDigitalEnvelope = digitalEnvelope.stringify();

           var corruptedSerializedDigitalEnvelope =
               serializedDigitalEnvelope.replace(
                   '\"encryptedDataBase64\":\"', '\"encryptedDataBase64\":\"0');
           var corruptedDigitalEnvelope = box.digitalenvelope.deserialize(
               corruptedSerializedDigitalEnvelope);
           expect(function() {
             _digitalEnvelopeService.openDigitalEnvelope(
                 corruptedDigitalEnvelope, _privateKeysPem[0]);
           }).toThrow();
         });
       });

    it('and throw an exception when generating a digital envelope with undefined data',
       function() {
         expect(function() {
           _digitalEnvelopeService.createDigitalEnvelope(
               undefined, [_publicKeysPem[0]]);
         }).toThrow();
       });

    it('and throw an exception when generating a digital envelope with empty data',
       function() {
         var dataBase64 = _converters.base64Encode('');
         expect(function() {
           _digitalEnvelopeService.createDigitalEnvelope(
               dataBase64, [_publicKeysPem[0]]);
         }).toThrow();
       });

    it('and throw an exception when generating a digital envelope with data that is not Base64 encoded',
       function() {
         var dataBase64 = 0;
         expect(function() {
           _digitalEnvelopeService.createDigitalEnvelope(
               dataBase64, [_publicKeysPem[0]]);
         }).toThrow();
       });

    it('and throw an exception when generating a digital envelope with undefined public keys',
       function() {
         expect(function() {
           _digitalEnvelopeService.createDigitalEnvelope(
               _dataBase64, undefined);
         }).toThrow();
       });

    it('and throw an exception when generating a digital envelope with public keys that are not of type Array',
       function() {
         expect(function() {
           _digitalEnvelopeService.createDigitalEnvelope(_dataBase64, 0);
         }).toThrow();
       });

    it('and throw an exception when generating a digital envelope with an empty public keys array',
       function() {
         expect(function() {
           _digitalEnvelopeService.createDigitalEnvelope(_dataBase64, []);
         }).toThrow();
       });

    it('and throw an exception when opening a digital envelope that is undefined',
       function() {
         expect(function() {
           _digitalEnvelopeService.openDigitalEnvelope(
               undefined, _privateKeysPem[0]);
         }).toThrow();
       });

    it('and throw an exception when opening a digital envelope that is not of type Object',
       function() {
         expect(function() {
           var digitalEnvelope = 0;

           _digitalEnvelopeService.openDigitalEnvelope(
               digitalEnvelope, _privateKeysPem[0]);
         }).toThrow();
       });

    it('and throw an exception when opening a digital envelope with an undefined private key',
       function() {
         var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
             _dataBase64, [_publicKeysPem[0]]);
         expect(function() {
           _digitalEnvelopeService.openDigitalEnvelope(
               digitalEnvelope, undefined);
         }).toThrow();
       });

    it('and throw an exception when opening a digital envelope with a private key PEM that is not of type String',
       function() {
         var digitalEnvelope = _digitalEnvelopeService.createDigitalEnvelope(
             _dataBase64, [_publicKeysPem[0]]);
         expect(function() {
           _digitalEnvelopeService.openDigitalEnvelope(digitalEnvelope, 0);
         }).toThrow();
       });

    it('and throw an exception when deserializing a digital envelope with an undefined serialized digital envelope',
       function() {
         cryptolib('digitalenvelope', function(box) {
           expect(function() {
             box.digitalenvelope.deserialize(undefined);
           }).toThrow();
         });
       });

    it('and throw an exception when deserializing a digital envelope with an serialized digital envelope that is not of type String',
       function() {
         cryptolib('digitalenvelope', function(box) {
           expect(function() {
             box.digitalenvelope.deserialize(0);
           }).toThrow();
         });
       });

    it('and throw an exception when deserializing a digital envelope with an empty serialized digital envelope',
       function() {
         cryptolib('digitalenvelope', function(box) {
           expect(function() {
             box.digitalenvelope.deserialize('');
           }).toThrow();
         });
       });
  });
});
