text: var moment = require("../../moment");
  
  exports.lang = {
      "library getter" : function (test) {
          test.expect(4);
  
          moment.lang('en');
          test.equal(moment.lang(), 'en', 'Lang should return en by default');
  
          moment.lang('fr');
          test.equal(moment.lang(), 'fr', 'Lang should return the changed language');
  
          moment.lang('en-gb');
          test.equal(moment.lang(), 'en-gb', 'Lang should return the changed language');
  
          moment.lang('en');
          test.equal(moment.lang(), 'en', 'Lang should reset');
  
          test.done();
      },
  
      "library ensure inheritance" : function (test) {
          test.expect(2);
  
          moment.lang('made-up', {
              // I put them out of order
              months : "February_March_April_May_June_July_August_September_October_November_December_January".split("_")
              // the rest of the properties should be inherited.
          });
  
          test.equal(moment([2012, 5, 6]).format('MMMM'), 'July', 'Override some of the configs');
          test.equal(moment([2012, 5, 6]).format('MMM'), 'Jun', 'But not all of them');
  
          test.done();
      },
  
      "library ensure inheritance LT L LL LLL LLLL" : function (test) {
          test.expect(5);
  
          var lang = 'test-inherit-lt';
  
          moment.lang(lang, {
              longDateFormat : {
                  LT : "-[LT]-",
                  L : "-[L]-",
                  LL : "-[LL]-",
                  LLL : "-[LLL]-",
                  LLLL : "-[LLLL]-"
              },
              calendar : {
                  sameDay : '[sameDay] LT',
                  nextDay : '[nextDay] L',
                  nextWeek : '[nextWeek] LL',
                  lastDay : '[lastDay] LLL',
                  lastWeek : '[lastWeek] LLLL',
                  sameElse : 'L'
              }
          });
  
          moment.lang('es');
  
          test.equal(moment().lang(lang).calendar(), "sameDay -LT-", "Should use instance lang in LT formatting");
          test.equal(moment().add('days', 1).lang(lang).calendar(), "nextDay -L-", "Should use instance lang in L formatting");
          test.equal(moment().add('days', -1).lang(lang).calendar(), "lastDay -LLL-", "Should use instance lang in LL formatting");
          test.equal(moment().add('days', 4).lang(lang).calendar(), "nextWeek -LL-", "Should use instance lang in LLL formatting");
          test.equal(moment().add('days', -4).lang(lang).calendar(), "lastWeek -LLLL-", "Should use instance lang in LLLL formatting");
  
          test.done();
      },
  
      "library langData" : function (test) {
          test.expect(3);
          moment.lang('en');
  
          var jan = moment([2000, 0]);
  
          test.equal(moment.langData().months(jan), 'January', 'no arguments returns global');
          test.equal(moment.langData('zh-cn').months(jan), '一月', 'a string returns the language based on key');
          test.equal(moment.langData(moment().lang('es')).months(jan), 'enero', "if you pass in a moment it uses the moment's language");
  
          test.done();
      },
  
      "instance lang method" : function (test) {
          test.expect(3);
          moment.lang('en');
  
          test.equal(moment([2012, 5, 6]).format('MMMM'), 'June', 'Normally default to global');
          test.equal(moment([2012, 5, 6]).lang('es').format('MMMM'), 'junio', 'Use the instance specific language');
          test.equal(moment([2012, 5, 6]).format('MMMM'), 'June', 'Using an instance specific language does not affect other moments');
  
          test.done();
      },
  
      "instance lang persists with manipulation" : function (test) {
          test.expect(3);
          moment.lang('en');
  
          test.equal(moment([2012, 5, 6]).lang('es').add({days: 1}).format('MMMM'), 'junio', 'With addition');
          test.equal(moment([2012, 5, 6]).lang('es').day(0).format('MMMM'), 'junio', 'With day getter');
          test.equal(moment([2012, 5, 6]).lang('es').endOf('day').format('MMMM'), 'junio', 'With endOf');
  
          test.done();
      },
  
      "instance lang persists with cloning" : function (test) {
          test.expect(2);
          moment.lang('en');
  
          var a = moment([2012, 5, 6]).lang('es'),
              b = a.clone(),
              c = moment(a);
  
          test.equal(b.format('MMMM'), 'junio', 'using moment.fn.clone()');
          test.equal(b.format('MMMM'), 'junio', 'using moment()');
  
          test.done();
      },
  
      "duration lang method" : function (test) {
          test.expect(3);
          moment.lang('en');
  
          test.equal(moment.duration({seconds:  44}).humanize(), 'a few seconds', 'Normally default to global');
          test.equal(moment.duration({seconds:  44}).lang('es').humanize(), 'unos segundos', 'Use the instance specific language');
          test.equal(moment.duration({seconds:  44}).humanize(), 'a few seconds', 'Using an instance specific language does not affect other durations');
  
          test.done();
      },
  
      "duration lang persists with cloning" : function (test) {
          test.expect(1);
          moment.lang('en');
  
          var a = moment.duration({seconds:  44}).lang('es'),
              b = moment.duration(a);
  
          test.equal(b.humanize(), 'unos segundos', 'using moment.duration()');
          test.done();
      },
  
      "instance lang used with from" : function (test) {
          test.expect(2);
          moment.lang('en');
  
          var a = moment([2012, 5, 6]).lang('es'),
              b = moment([2012, 5, 7]);
  
          test.equal(a.from(b), 'hace un día', 'preserve language of first moment');
          test.equal(b.from(a), 'in a day', 'do not preserve language of second moment');
  
          test.done();
      },
  
      "month name callback function" : function (test) {
          test.expect(3);
  
          function fakeReplace(m, format) {
              if (/test/.test(format)) {
                  return "test";
              }
              if (m.date() === 1) {
                  return "date";
              }
              return 'default';
          }
  
          moment.lang('made-up', {
              months : fakeReplace,
              monthsShort : fakeReplace,
              weekdays : fakeReplace,
              weekdaysShort : fakeReplace,
              weekdaysMin : fakeReplace
          });
  
          test.equal(moment().format('[test] dd ddd dddd MMM MMMM'), 'test test test test test test', 'format month name function should be able to access the format string');
          test.equal(moment([2011, 0, 1]).format('dd ddd dddd MMM MMMM'), 'date date date date date', 'format month name function should be able to access the moment object');
          test.equal(moment([2011, 0, 2]).format('dd ddd dddd MMM MMMM'), 'default default default default default', 'format month name function should be able to access the moment object');
  
          test.done();
      },
  
      "changing parts of a language config" : function (test) {
          test.expect(2);
  
          moment.lang('partial-lang', {
              months : 'a b c d e f g h i j k l'.split(' ')
          });
  
          test.equal(moment([2011, 0, 1]).format('MMMM'), 'a', 'should be able to set language values when creating the language');
  
          moment.lang('partial-lang', {
              monthsShort : 'A B C D E F G H I J K L'.split(' ')
          });
  
          test.equal(moment([2011, 0, 1]).format('MMMM MMM'), 'a A', 'should be able to set language values after creating the language');
  
          test.done();
      }
  };
  