filtersSpec.js

'use strict';

describe('filters', function() {

  var filter;

  beforeEach(inject(function($filter){
    filter = $filter;
  }));

  it('should call the filter when evaluating expression', function(){
    var filter = jasmine.createSpy('myFilter');
    createInjector(['ng', function($filterProvider) {
      $filterProvider.register('myFilter', valueFn(filter));
    }]).invoke(function($rootScope) {
      $rootScope.$eval('10|myFilter');
    });
    expect(filter).toHaveBeenCalledWith(10);
  });

  describe('formatNumber', function() {
    var pattern;

    beforeEach(function() {
      pattern = { minInt: 1,
                  minFrac: 0,
                  maxFrac: 3,
                  posPre: '',
                  posSuf: '',
                  negPre: '-',
                  negSuf: '',
                  gSize: 3,
                  lgSize: 3 };
    });

    it('should format according to different patterns', function() {
      pattern.gSize = 2;
      var num = formatNumber(1234567.89, pattern, ',', '.');
      expect(num).toBe('12,34,567.89');
      num = formatNumber(1234.56, pattern, ',', '.');
      expect(num).toBe('1,234.56');

      pattern.negPre = '(';
      pattern.negSuf = '-)';
      num = formatNumber(-1234, pattern, ',', '.');
      expect(num).toBe('(1,234-)');
      pattern.posPre = '+';
      pattern.posSuf = '+';
      num = formatNumber(1234, pattern, ',', '.');
      expect(num).toBe('+1,234+');
      pattern.posPre = pattern.posSuf = '';

      pattern.minFrac = 2;
      num = formatNumber(1, pattern, ',', '.');
      expect(num).toBe('1.00');
      pattern.maxFrac = 4;
      num = formatNumber(1.11119, pattern, ',', '.');
      expect(num).toBe('1.1112');
    });

    it('should format according different seperators', function() {
      var num = formatNumber(1234567.1, pattern, '.', ',', 2);
      expect(num).toBe('1.234.567,10');
    });

    it('should format with or without fractionSize', function() {
      var num = formatNumber(123.1, pattern, ',', '.', 3);
      expect(num).toBe('123.100');
      num = formatNumber(123.12, pattern, ',', '.');
      expect(num).toBe('123.12');
      var num = formatNumber(123.1116, pattern, ',', '.');
      expect(num).toBe('123.112');
    });
  });

  describe('currency', function() {
    var currency;

    beforeEach(function() {
      currency = filter('currency');
    });

    it('should do basic currency filtering', function() {
      expect(currency(0)).toEqual('$0.00');
      expect(currency(-999)).toEqual('($999.00)');
      expect(currency(1234.5678, "USD$")).toEqual('USD$1,234.57');
    });


    it('should return empty string for non-numbers', function() {
      expect(currency()).toBe('');
      expect(currency('abc')).toBe('');
    });

    it('should handle zero and nearly-zero values properly', function() {
      // This expression is known to yield 4.440892098500626e-16 instead of 0.0.
      expect(currency(1.07 + 1 - 2.07)).toBe('$0.00');
      expect(currency(0.008)).toBe('$0.01');
      expect(currency(0.003)).toBe('$0.00');
    });
  });


  describe('number', function() {
    var number;

    beforeEach(inject(function($rootScope) {
      number = filter('number');
    }));


    it('should do basic filter', function() {
      expect(number(0, 0)).toEqual('0');
      expect(number(-999)).toEqual('-999');
      expect(number(123)).toEqual('123');
      expect(number(1234567)).toEqual('1,234,567');
      expect(number(1234)).toEqual('1,234');
      expect(number(1234.5678)).toEqual('1,234.568');
      expect(number(Number.NaN)).toEqual('');
      expect(number("1234.5678")).toEqual('1,234.568');
      expect(number(1/0)).toEqual("");
      expect(number(1,        2)).toEqual("1.00");
      expect(number(.1,       2)).toEqual("0.10");
      expect(number(.01,      2)).toEqual("0.01");
      expect(number(.001,     3)).toEqual("0.001");
      expect(number(.0001,    3)).toEqual("0.000");
      expect(number(9,        2)).toEqual("9.00");
      expect(number(.9,       2)).toEqual("0.90");
      expect(number(.99,      2)).toEqual("0.99");
      expect(number(.999,     3)).toEqual("0.999");
      expect(number(.9999,    3)).toEqual("1.000");
      expect(number(1234.567, 0)).toEqual("1,235");
      expect(number(1234.567, 1)).toEqual("1,234.6");
      expect(number(1234.567, 2)).toEqual("1,234.57");
    });

    it('should filter exponential numbers', function() {
      expect(number(1e50, 0)).toEqual('1e+50');
      expect(number(-2e50, 2)).toEqual('-2e+50');
    });
  });

  describe('json', function () {
    it('should do basic filter', function() {
      expect(filter('json')({a:"b"})).toEqual(toJson({a:"b"}, true));
    });
  });

  describe('lowercase', function() {
    it('should do basic filter', function() {
      expect(filter('lowercase')('AbC')).toEqual('abc');
      expect(filter('lowercase')(null)).toBeNull();
    });
  });

  describe('uppercase', function() {
    it('should do basic filter', function() {
      expect(filter('uppercase')('AbC')).toEqual('ABC');
      expect(filter('uppercase')(null)).toBeNull();
    });
  });

  describe('date', function() {

    var morning  = new angular.mock.TzDate(+5, '2010-09-03T12:05:08.000Z'); //7am
    var noon =     new angular.mock.TzDate(+5, '2010-09-03T17:05:08.000Z'); //12pm
    var midnight = new angular.mock.TzDate(+5, '2010-09-03T05:05:08.000Z'); //12am
    var earlyDate = new angular.mock.TzDate(+5, '0001-09-03T05:05:08.000Z');

    var date;

    beforeEach(inject(function($filter) {
      date = $filter('date');
    }));

    it('should ignore falsy inputs', function() {
      expect(date(null)).toBeNull();
      expect(date('')).toEqual('');
    });

    it('should do basic filter', function() {
      expect(date(noon)).toEqual(date(noon, 'mediumDate'));
      expect(date(noon, '')).toEqual(date(noon, 'mediumDate'));
    });

    it('should accept number or number string representing milliseconds as input', function() {
      expect(date(noon.getTime())).toEqual(date(noon.getTime(), 'mediumDate'));
      expect(date(noon.getTime() + "")).toEqual(date(noon.getTime() + "", 'mediumDate'));
    });

    it('should accept various format strings', function() {
      expect(date(morning, "yy-MM-dd HH:mm:ss")).
                      toEqual('10-09-03 07:05:08');

      expect(date(midnight, "yyyy-M-d h=H:m:saZ")).
                      toEqual('2010-9-3 12=0:5:8AM0500');

      expect(date(midnight, "yyyy-MM-dd hh=HH:mm:ssaZ")).
                      toEqual('2010-09-03 12=00:05:08AM0500');

      expect(date(noon, "yyyy-MM-dd hh=HH:mm:ssaZ")).
                      toEqual('2010-09-03 12=12:05:08PM0500');

      expect(date(noon, "EEE, MMM d, yyyy")).
                      toEqual('Fri, Sep 3, 2010');

      expect(date(noon, "EEEE, MMMM dd, yyyy")).
                      toEqual('Friday, September 03, 2010');

      expect(date(earlyDate, "MMMM dd, y")).
                      toEqual('September 03, 1');
    });

    it('should treat single quoted strings as string literals', function() {
      expect(date(midnight, "yyyy'de' 'a'x'dd' 'adZ' h=H:m:saZ")).
                      toEqual('2010de axdd adZ 12=0:5:8AM0500');
    });

    it('should treat a sequence of two single quotes as a literal single quote', function() {
      expect(date(midnight, "yyyy'de' 'a''dd' 'adZ' h=H:m:saZ")).
                      toEqual("2010de a'dd adZ 12=0:5:8AM0500");
    });

    it('should accept default formats', function() {

      expect(date(noon, "medium")).
                      toEqual('Sep 3, 2010 12:05:08 PM');

      expect(date(noon, "short")).
                      toEqual('9/3/10 12:05 PM');

      expect(date(noon, "fullDate")).
                      toEqual('Friday, September 3, 2010');

      expect(date(noon, "longDate")).
                      toEqual('September 3, 2010');

      expect(date(noon, "mediumDate")).
                      toEqual('Sep 3, 2010');

      expect(date(noon, "shortDate")).
                      toEqual('9/3/10');

      expect(date(noon, "mediumTime")).
                      toEqual('12:05:08 PM');

      expect(date(noon, "shortTime")).
                      toEqual('12:05 PM');
    });

    it('should parse format ending with non-replaced string', function() {
      expect(date(morning, 'yy/xxx')).toEqual('10/xxx');
    });


    it('should support various iso8061 date strings as input', function() {
      var format = 'yyyy-MM ss';

      //full ISO8061
      expect(date('2003-09-10T13:02:03.000Z', format)).toEqual('2003-09 03');

      expect(date('2003-09-10T13:02:03.000+00:00', format)).toEqual('2003-09 03');

      expect(date('2003-09-10T13:02:03-08:00', format)).toEqual('2003-09 03');

      expect(date('20030910T033203-0930', format)).toEqual('2003-09 03');

      //no timezone
      expect(date('2003-09-10T13:02:03.000', format)).toEqual('2003-09 03');

      //no millis
      expect(date('2003-09-10T13:02:03Z', format)).toEqual('2003-09 03');

      //no seconds
      expect(date('2003-09-10T13:02Z', format)).toEqual('2003-09 00');

      //no minutes
      expect(date('2003-09-10T13Z', format)).toEqual('2003-09 00');

      //no time
      expect(date('2003-09-10', format)).toEqual('2003-09 00');
    });

    it('should support different degrees of subsecond precision', function () {
      var format = 'yyyy-MM-dd';

      expect(date('2003-09-10T13:02:03.12345678Z', format)).toEqual('2003-09-10');
      expect(date('2003-09-10T13:02:03.1234567Z', format)).toEqual('2003-09-10');
      expect(date('2003-09-10T13:02:03.123456Z', format)).toEqual('2003-09-10');
      expect(date('2003-09-10T13:02:03.12345Z', format)).toEqual('2003-09-10');
      expect(date('2003-09-10T13:02:03.1234Z', format)).toEqual('2003-09-10');
      expect(date('2003-09-10T13:02:03.123Z', format)).toEqual('2003-09-10');
      expect(date('2003-09-10T13:02:03.12Z', format)).toEqual('2003-09-10');
      expect(date('2003-09-10T13:02:03.1Z', format)).toEqual('2003-09-10');
    });
  });
});