ioredis-mock/lib/index.js

This library emulates ioredis by performing all operations in-memory.

'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _events = require('events');

var _command = require('ioredis/lib/command');

var originalCommands = _interopRequireWildcard(_command);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var _commands = require('./commands');

var commands = _interopRequireWildcard(_commands);

var _commandsStream = require('./commands-stream');

var commandsStream = _interopRequireWildcard(_commandsStream);

var _command2 = require('./command');

var _command3 = _interopRequireDefault(_command2);

var _data = require('./data');

var _data2 = _interopRequireDefault(_data);

var _expires = require('./expires');

var _expires2 = _interopRequireDefault(_expires);

var _pipeline = require('./pipeline');

var _pipeline2 = _interopRequireDefault(_pipeline);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _toArray(arr) { return Array.isArray(arr) ? arr : Array.from(arr); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var RedisMock = function (_EventEmitter) {
  _inherits(RedisMock, _EventEmitter);

  function RedisMock() {
    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
        _ref$data = _ref.data,
        data = _ref$data === undefined ? {} : _ref$data;

    _classCallCheck(this, RedisMock);

    var _this = _possibleConstructorReturn(this, (RedisMock.__proto__ || Object.getPrototypeOf(RedisMock)).call(this));

    _this.channels = {};
    _this.batch = undefined;

    _this.expires = (0, _expires2.default)();

    _this.data = (0, _data2.default)(_this.expires, data);

    Object.keys(commands).forEach(function (command) {
      _this[command] = (0, _command3.default)(commands[command].bind(_this), command, _this);
    });

    Object.keys(commandsStream).forEach(function (command) {
      _this[command] = commandsStream[command].bind(_this);
    });

    process.nextTick(function () {
      _this.emit('connect');
      _this.emit('ready');
    });
    return _this;
  }

  _createClass(RedisMock, [{
    key: 'multi',
    value: function multi() {
      var _this2 = this;

      var batch = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];

      this.batch = new _pipeline2.default(this);

      batch.forEach(function (_ref2) {
        var _batch;

        var _ref3 = _toArray(_ref2),
            command = _ref3[0],
            options = _ref3.slice(1);

        return (_batch = _this2.batch)[command].apply(_batch, _toConsumableArray(options));
      });

      return this.batch;
    }
  }, {
    key: 'pipeline',
    value: function pipeline() {
      this.batch = new _pipeline2.default(this);
      return this.batch;
    }
  }, {
    key: 'exec',
    value: function exec(callback) {
      if (!this.batch) {
        return _bluebird2.default.reject(new Error('ERR EXEC without MULTI'));
      }
      var pipeline = this.batch;
      this.batch = undefined;
      return pipeline.exec(callback);
    }
  }]);

  return RedisMock;
}(_events.EventEmitter);

RedisMock.prototype.Command = {
  // eslint-disable-next-line no-underscore-dangle
  transformers: originalCommands._transformer,
  setArgumentTransformer: function setArgumentTransformer(name, func) {
    RedisMock.prototype.Command.transformers.argument[name] = func;
  },

  setReplyTransformer: function setReplyTransformer(name, func) {
    RedisMock.prototype.Command.transformers.reply[name] = func;
  }
};

module.exports = RedisMock;