text: 'use strict';
  
  require('should');
  
  var dateFormat = require('../lib');
  
  function createFixedDate() {
      return new Date(2010, 0, 11, 14, 31, 30, 5);
  }
  
  describe('date_format', function() {
      var date = createFixedDate();
  
      it('should default to now when a date is not provided', function() {
          dateFormat.asString(dateFormat.DATETIME_FORMAT).should.not.be.empty();
      });
  
      it('should be usable directly without calling asString', function() {
          dateFormat(dateFormat.DATETIME_FORMAT, date).should.eql('11 01 2010 14:31:30.005');
      });
  
      it('should format a date as string using a pattern', function() {
          dateFormat.asString(dateFormat.DATETIME_FORMAT, date).should.eql('11 01 2010 14:31:30.005');
      });
  
      it('should default to the ISO8601 format', function() {
          dateFormat.asString(date).should.eql('2010-01-11T14:31:30.005');
      });
  
      it('should provide a ISO8601 with timezone offset format', function() {
          var tzDate = createFixedDate();
          tzDate.setMinutes(tzDate.getMinutes() - tzDate.getTimezoneOffset() - 660);
          tzDate.getTimezoneOffset = function () {
              return -660;
          };
  
          // when tz offset is in the pattern, the date should be in UTC
          dateFormat.asString(dateFormat.ISO8601_WITH_TZ_OFFSET_FORMAT, tzDate)
              .should.eql('2010-01-11T03:31:30.005+1100');
  
          tzDate = createFixedDate();
          tzDate.setMinutes((tzDate.getMinutes() - tzDate.getTimezoneOffset()) + 120);
          tzDate.getTimezoneOffset = function () {
              return 120;
          };
  
          dateFormat.asString(dateFormat.ISO8601_WITH_TZ_OFFSET_FORMAT, tzDate)
              .should.eql('2010-01-11T16:31:30.005-0200');
      });
  
      it('should provide a just-the-time format', function() {
          dateFormat.asString(dateFormat.ABSOLUTETIME_FORMAT, date).should.eql('14:31:30.005');
      });
  
      it('should provide a custom format', function() {
          var customDate = createFixedDate();
          customDate.setMinutes((customDate.getMinutes() - customDate.getTimezoneOffset()) + 120);
          customDate.getTimezoneOffset = function () {
              return 120;
          };
  
          dateFormat.asString('O.SSS.ss.mm.hh.dd.MM.yy', customDate).should.eql('-0200.005.30.31.16.11.01.10');
      });
  });
  