--- /dev/null
+var assert = require('assert');
+
+var dateFormat = require('./../lib/dateformat');
+
+describe('dayOfWeek', function() {
+ it('should correctly format the timezone part', function(done) {
+ var start = 10; // the 10 of March 2013 is a Sunday
+ for(var dow = 1; dow <= 7; dow++){
+ var date = new Date('2013-03-' + (start + dow));
+ var N = dateFormat(date, 'N');
+ assert.strictEqual(N, String(dow));
+ }
+ done();
+ });
+});