MagicMirror/tests/e2e/modules/mocks/date.js

/**
 * MockDate
 *
 * By Bob Lauer (https://github.com/boblauer/MockDate
 * MIT Licensed.
*/

(function(name, definition) {
	if (typeof module !== "undefined") {module.exports = definition();}
	else if (typeof define === "function" && typeof define.amd === "object") {define(definition);}
	else {this[name] = definition();}
}("MockDate", function() {
	"use strict";

	var _Date = Date
		, _getTimezoneOffset = Date.prototype.getTimezoneOffset
		, now = null
    ;

	function MockDate(y, m, d, h, M, s, ms) {
		var date;

		switch (arguments.length) {

		case 0:
			if (now !== null) {
				date = new _Date(now);
			} else {
				date = new _Date();
			}
			break;

		case 1:
			date = new _Date(y);
			break;

		default:
			d = typeof d === "undefined" ? 1 : d;
			h = h || 0;
			M = M || 0;
			s = s || 0;
			ms = ms || 0;
			date = new _Date(y, m, d, h, M, s, ms);
			break;
		}

		return date;
	}

	MockDate.UTC = _Date.UTC;

	MockDate.now = function() {
		return new MockDate().valueOf();
	};

	MockDate.parse = function(dateString) {
		return _Date.parse(dateString);
	};

	MockDate.toString = function() {
		return _Date.toString();
	};

	MockDate.prototype = _Date.prototype;

	function set(date, timezoneOffset) {
		var dateObj = new Date(date);
		if (isNaN(dateObj.getTime())) {
			throw new TypeError("mockdate: The time set is an invalid date: " + date);
		}

		if (typeof timezoneOffset === "number") {
			MockDate.prototype.getTimezoneOffset = function() {
				return timezoneOffset;
			};
		}

		Date = MockDate;

		now = dateObj.valueOf();
	}

	function reset() {
		Date = _Date;
		Date.prototype.getTimezoneOffset = _getTimezoneOffset;
	}

	return {
		set: set,
		reset: reset
	};

}));