Testing _. lodash sortBy function for grid list view

lodashSortSpec.js

describe('_.sortBy of lodash',function(){
  var descData = [
        {title: "B", number: 2, date: new Date("October 2, 2014") },
        {title: "A", number: 1, date: new Date("October 1, 2014") },        
  ];
  
   var ascData = [
        {title: "A", number: 1, date: new Date("October 1, 2014") },        
        {title: "B", number: 2, date: new Date("October 2, 2014") },
  ];
  
    it('shoud sort title in ASC order',function(){
        var orderedData = _.map(_.sortBy(descData, "title" ));
        expect(orderedData).toEqual(ascData);
        
        var orderedData = _.map(_.sortBy(ascData, "title" ));
        expect(orderedData).toEqual(ascData);
    });
  
    it('shoud sort title in DESC order',function(){
      var orderedData = _.map(_.sortBy(descData, "title" )).reverse();
      expect(orderedData).toEqual(descData);
      
      var orderedData = _.map(_.sortBy(ascData, "title" )).reverse();
      expect(orderedData).toEqual(descData);
    });
    
     it('shoud sort date in ASC order',function(){
        var orderedData = _.map(_.sortBy(descData, "date" ));
        expect(orderedData).toEqual(ascData);
    });
    
    it('shoud sort date in DESC order',function(){
        var orderedData = _.map(_.sortBy(ascData, "date" )).reverse();
        expect(orderedData).toEqual(descData);
    });
});