Add timezone test

lib/recurring.js

@@ -24,7 +24,7 @@ var moment = require('moment');
 
 
 // takes a JSON object with pattern options
-function RecurringDate (pattern, date_format, opts) {
+function RecurringDate (pattern, date_format) {
     if (typeof pattern != 'object') throw new TypeError('pattern must be a JSON');
 
     if (!pattern.every) {
@@ -36,7 +36,6 @@ function RecurringDate (pattern, date_format, opts) {
     }
 
 	this.pattern = pattern;
-    this.opts = opts || {};
 
     // stores generated dates based on recurrence pattern
     this.dates = [];
@@ -57,8 +56,8 @@ function RecurringDate (pattern, date_format, opts) {
 RecurringDate.prototype._getDate = function(value) {
     var result = moment(value);
     // Handle timezone offsets
-    if (this.opts.timezone) {
-        result.zone(this.opts.timezone);
+    if (this.pattern.timezone) {
+        result.zone(this.pattern.timezone);
     }
     return result;
 }

test/recurrence_test.js

@@ -110,4 +110,42 @@ describe('by weeks with', function () {
 		return done();
 	});
 
-}); // describe by weeks
+}); // describe by weeks
+
+describe('with timezone offset', function() {
+
+	it('should be able to generate with a timezone offset', function(done) {
+		var start = moment('13-01-2014 06:30 AM +10:00', 'DD-MM-YYYY hh:mm a Z'),
+			params = {
+				start: start.toDate(),
+				until: '03/21/2014',
+				every: '1', 
+				unit: 'w',
+				end_condition: 'until',
+				days: [1],
+				timezone: '-0500'
+			},
+			r = new Recurrence(params),
+			results = r.generate(),
+			expected = [
+				1389558600000,
+				1389645000000,
+				1390249800000,
+				1390854600000,
+				1391459400000,
+				1392064200000,
+				1392669000000,
+				1393273800000,
+				1393878600000,
+				1394483400000,
+				1395088200000
+			];
+
+		for (var i = 0; i < results.length; i++) {
+			if (results[i] != expected[i]) {
+				return done('Unexpected time');
+			}
+		}
+		return done();
+	});	
+});